MG + Pythia6: large cross section difference between versions 2.4.3 and 2.5.2

Asked by anke

Dear MadGraph experts,

I have been running Z boson production in weak boson fusion with the Z decaying into neutrinos using the syntax
p p > vm vm~ j j QCD=0
p p > vm vm~ j j j QCD=1.

I run the process using the MG versions 2.4.3 and 2.5.2, both in combination with Pythia6. All the settings in the run_card are the same. The partonic cross sections are in good agreement, but after running Pythia6 I see very large deviations between the two versions:
2.4.3: 1.7 pb
2.5.2: 2.8 pb

I will upload the banner files for the two runs.

Is there a reason for this large deviation? Am I doing something wrong?

Many thanks in advance for your time and help.

Cheers,
Anke

Question information

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anke
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Revision history for this message
anke (anke.b) said :
#1

<LesHouchesEvents version="3.0">
<header>
<!--
#*********************************************************************
# *
# MadGraph5_aMC@NLO *
# *
# Going Beyond *
# *
# http://madgraph.hep.uiuc.edu *
# http://madgraph.phys.ucl.ac.be *
# http://amcatnlo.cern.ch *
# *
# The MadGraph5_aMC@NLO team *
# *
#....................................................................*
# *
# This file contains all the information necessary to reproduce *
# the events generated: *
# *
# 1. software version *
# 2. proc_card : code generation info including model *
# 3. param_card : model primary parameters in the LH format *
# 4. run_card : running parameters (collider and cuts) *
# 5. pythia_card : present only if pythia has been run *
# 6. pgs_card : present only if pgs has been run *
# 7. delphes_cards : present only if delphes has been run *
# *
# *
#*********************************************************************
-->
<MGVersion>
#5.2.4.3
</MGVersion>
<MG5ProcCard>
#************************************************************
#* MadGraph5_aMC@NLO *
#* *
#* * * *
#* * * * * *
#* * * * * 5 * * * * *
#* * * * * *
#* * * *
#* *
#* *
#* VERSION 2.4.3 2016-08-01 *
#* *
#* The MadGraph5_aMC@NLO Development Team - Find us at *
#* https://server06.fynu.ucl.ac.be/projects/madgraph *
#* *
#************************************************************
#* *
#* Command File for MadGraph5_aMC@NLO *
#* *
#* run as ./bin/mg5_aMC filename *
#* *
#************************************************************
set group_subprocesses Auto
set ignore_six_quark_processes False
set loop_optimized_output True
set low_mem_multicore_nlo_generation False
set loop_color_flows False
set gauge unitary
set complex_mass_scheme False
set max_npoint_for_channel 0
import model sm
define p = g u c d s u~ c~ d~ s~
define j = g u c d s u~ c~ d~ s~
define l+ = e+ mu+
define l- = e- mu-
define vl = ve vm vt
define vl~ = ve~ vm~ vt~
generate p p > vm vm~ j j QCD=0
add process p p > vm vm~ j j j QCD=1
output Z_inv_2_4_3
</MG5ProcCard>
<MGProcCard>
#*********************************************************************
# MadGraph/MadEvent *
# http://madgraph.hep.uiuc.edu *
# *
# proc_card.dat *
#*********************************************************************
# *
# This Files is generated by MADGRAPH 5 *
# *
# WARNING: This Files is generated for MADEVENT (compatibility issue)*
# This files is NOT a valid MG4 proc_card.dat *
# Running this in MG4 will NEVER reproduce the result of MG5*
# *
#*********************************************************************
#*********************************************************************
# Process(es) requested : mg2 input *
#*********************************************************************
# Begin PROCESS # This is TAG. Do not modify this line
p p > vm vm~ j j #Process
# Be carefull the coupling are here in MG5 convention
QCD=0

end_coup # End the couplings input

done # this tells MG there are no more procs
# End PROCESS # This is TAG. Do not modify this line
#*********************************************************************
# Model information *
#*********************************************************************
# Begin MODEL # This is TAG. Do not modify this line
sm
# End MODEL # This is TAG. Do not modify this line
#*********************************************************************
# Start multiparticle definitions *
#*********************************************************************
# Begin MULTIPARTICLES # This is TAG. Do not modify this line

# End MULTIPARTICLES # This is TAG. Do not modify this line
</MGProcCard>
<MGRunCard>
#*********************************************************************
# MadGraph5_aMC@NLO *
# *
# run_card.dat MadEvent *
# *
# This file is used to set the parameters of the run. *
# *
# Some notation/conventions: *
# *
# Lines starting with a '# ' are info or comments *
# *
# mind the format: value = variable ! comment *
#*********************************************************************
#
#*******************
# Running parameters
#*******************
#
#*********************************************************************
# Tag name for the run (one word) *
#*********************************************************************
  tag_1 = run_tag ! name of the run
#*********************************************************************
# Run to generate the grid pack *
#*********************************************************************
  False = gridpack !True = setting up the grid pack
#*********************************************************************
# Number of events and rnd seed *
# Warning: Do not generate more than 1M events in a single run *
# If you want to run Pythia, avoid more than 50k events in a run. *
#*********************************************************************
  5000 = nevents ! Number of unweighted events requested
 21 = iseed ! rnd seed (0=assigned automatically=default))
#*********************************************************************
# Collider type and energy *
# lpp: 0=No PDF, 1=proton, -1=antiproton, 2=photon from proton, *
# 3=photon from electron *
#*********************************************************************
     1 = lpp1 ! beam 1 type
     1 = lpp2 ! beam 2 type
     6500.0 = ebeam1 ! beam 1 total energy in GeV
     6500.0 = ebeam2 ! beam 2 total energy in GeV
#*********************************************************************
# Beam polarization from -100 (left-handed) to 100 (right-handed) *
#*********************************************************************
     0.0 = polbeam1 ! beam polarization for beam 1
     0.0 = polbeam2 ! beam polarization for beam 2
#*********************************************************************
# PDF CHOICE: this automatically fixes also alpha_s and its evol. *
#*********************************************************************
     nn23lo1 = pdlabel ! PDF set
     230000 = lhaid ! if pdlabel=lhapdf, this is the lhapdf number
#*********************************************************************
# Renormalization and factorization scales *
#*********************************************************************
 False = fixed_ren_scale ! if .true. use fixed ren scale
 False = fixed_fac_scale ! if .true. use fixed fac scale
 91.188 = scale ! fixed ren scale
 91.188 = dsqrt_q2fact1 ! fixed fact scale for pdf1
 91.188 = dsqrt_q2fact2 ! fixed fact scale for pdf2
 -1 = dynamical_scale_choice ! Choose one of the preselected dynamical choices
 1.0 = scalefact ! scale factor for event-by-event scales
#*********************************************************************
# Time of flight information. (-1 means not run)
#*********************************************************************
 -1.0 = time_of_flight ! threshold below which info is not written
#*********************************************************************
# Matching - Warning! ickkw > 1 is still beta
#*********************************************************************
 1 = ickkw ! 0 no matching, 1 MLM, 2 CKKW matching
 1 = highestmult ! for ickkw=2, highest mult group
 1 = ktscheme ! for ickkw=1, 1 Durham kT, 2 Pythia pTE
 1.0 = alpsfact ! scale factor for QCD emission vx
 False = chcluster ! cluster only according to channel diag
 True = pdfwgt ! for ickkw=1, perform pdf reweighting
 4 = asrwgtflavor ! highest quark flavor for a_s reweight
 True = clusinfo ! include clustering tag in output
 3.0 = lhe_version ! Change the way clustering information pass to shower.
#*********************************************************************
#**********************************************************
#
#**********************************************************
# Automatic ptj and mjj cuts if xqcut > 0
# (turn off for VBF and single top processes)
#**********************************************************
   False = auto_ptj_mjj ! Automatic setting of ptj and mjj
#**********************************************************
#
#**********************************
# BW cutoff (M+/-bwcutoff*Gamma)
#**********************************
  15.0 = bwcutoff ! (M+/-bwcutoff*Gamma)
#**********************************************************
# Apply pt/E/eta/dr/mij/kt_durham cuts on decay products or not
# (note that etmiss/ptll/ptheavy/ht/sorted cuts always apply)
#*************************************************************
   False = cut_decays ! Cut decay products
#*************************************************************
# Number of helicities to sum per event (0 = all helicities)
# 0 gives more stable result, but longer run time (needed for
# long decay chains e.g.).
# Use >=2 if most helicities contribute, e.g. pure QCD.
#*************************************************************
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#*******************
# Standard Cuts
#*******************
#
#*********************************************************************
# Minimum and maximum pt's (for max, -1 means no cut) *
#*********************************************************************
 10.0 = ptj ! minimum pt for the jets
 0.0 = ptb ! minimum pt for the b
 2.0 = pta ! minimum pt for the photons
 2.0 = ptl ! minimum pt for the charged leptons
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 0.0 = ptheavy ! minimum pt for one heavy final state
 -1.0 = ptjmax ! maximum pt for the jets
 -1.0 = ptbmax ! maximum pt for the b
 -1.0 = ptamax ! maximum pt for the photons
 -1.0 = ptlmax ! maximum pt for the charged leptons
 -1.0 = missetmax ! maximum missing Et (sum of neutrino's momenta)
#*********************************************************************
# Minimum and maximum E's (in the center of mass frame) *
#*********************************************************************
  0.0 = ej ! minimum E for the jets
  0.0 = eb ! minimum E for the b
  0.0 = ea ! minimum E for the photons
  0.0 = el ! minimum E for the charged leptons
  -1.0 = ejmax ! maximum E for the jets
 -1.0 = ebmax ! maximum E for the b
 -1.0 = eamax ! maximum E for the photons
 -1.0 = elmax ! maximum E for the charged leptons
#*********************************************************************
# Maximum and minimum absolute rapidity (for max, -1 means no cut) *
#*********************************************************************
  -1.0 = etaj ! max rap for the jets
  -1.0 = etab ! max rap for the b
 -1.0 = etaa ! max rap for the photons
 -1.0 = etal ! max rap for the charged leptons
 0.0 = etajmin ! min rap for the jets
 0.0 = etabmin ! min rap for the b
 0.0 = etaamin ! min rap for the photons
 0.0 = etalmin ! main rap for the charged leptons
#*********************************************************************
# Minimum and maximum DeltaR distance *
#*********************************************************************
 0.0 = drjj ! min distance between jets
 0.0 = drbb ! min distance between b's
 0.0 = drll ! min distance between leptons
 0.0 = draa ! min distance between gammas
 0.0 = drbj ! min distance between b and jet
 0.0 = draj ! min distance between gamma and jet
 0.0 = drjl ! min distance between jet and lepton
 0.0 = drab ! min distance between gamma and b
 0.0 = drbl ! min distance between b and lepton
 0.0 = dral ! min distance between gamma and lepton
 -1.0 = drjjmax ! max distance between jets
 -1.0 = drbbmax ! max distance between b's
 -1.0 = drllmax ! max distance between leptons
 -1.0 = draamax ! max distance between gammas
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 -1.0 = drajmax ! max distance between gamma and jet
 -1.0 = drjlmax ! max distance between jet and lepton
 -1.0 = drabmax ! max distance between gamma and b
 -1.0 = drblmax ! max distance between b and lepton
 -1.0 = dralmax ! maxdistance between gamma and lepton
#*********************************************************************
# Minimum and maximum invariant mass for pairs *
# WARNING: for four lepton final state mmll cut require to have *
# different lepton masses for each flavor! *
#*********************************************************************
 0.0 = mmjj ! min invariant mass of a jet pair
 0.0 = mmbb ! min invariant mass of a b pair
 0.0 = mmaa ! min invariant mass of gamma gamma pair
 0.0 = mmll ! min invariant mass of l+l- (same flavour) lepton pair
 -1.0 = mmjjmax ! max invariant mass of a jet pair
 -1.0 = mmbbmax ! max invariant mass of a b pair
 -1.0 = mmaamax ! max invariant mass of gamma gamma pair
 -1.0 = mmllmax ! max invariant mass of l+l- (same flavour) lepton pair
#*********************************************************************
# Minimum and maximum invariant mass for all letpons *
#*********************************************************************
 0.0 = mmnl ! min invariant mass for all letpons (l+- and vl)
 -1.0 = mmnlmax ! max invariant mass for all letpons (l+- and vl)
#*********************************************************************
# Minimum and maximum pt for 4-momenta sum of leptons *
#*********************************************************************
 0.0 = ptllmin ! Minimum pt for 4-momenta sum of leptons(l and vl)
 -1.0 = ptllmax ! Maximum pt for 4-momenta sum of leptons(l and vl)
#*********************************************************************
# Inclusive cuts *
#*********************************************************************
 0.0 = xptj ! minimum pt for at least one jet
 0.0 = xptb ! minimum pt for at least one b
 0.0 = xpta ! minimum pt for at least one photon
 0.0 = xptl ! minimum pt for at least one charged lepton
#*********************************************************************
# Control the pt's of the jets sorted by pt *
#*********************************************************************
 0.0 = ptj1min ! minimum pt for the leading jet in pt
 0.0 = ptj2min ! minimum pt for the second jet in pt
 0.0 = ptj3min ! minimum pt for the third jet in pt
 0.0 = ptj4min ! minimum pt for the fourth jet in pt
 -1.0 = ptj1max ! maximum pt for the leading jet in pt
 -1.0 = ptj2max ! maximum pt for the second jet in pt
 -1.0 = ptj3max ! maximum pt for the third jet in pt
 -1.0 = ptj4max ! maximum pt for the fourth jet in pt
 0 = cutuse ! reject event if fails any (0) / all (1) jet pt cuts
#*********************************************************************
# Control the pt's of leptons sorted by pt *
#*********************************************************************
 0.0 = ptl1min ! minimum pt for the leading lepton in pt
 0.0 = ptl2min ! minimum pt for the second lepton in pt
 0.0 = ptl3min ! minimum pt for the third lepton in pt
 0.0 = ptl4min ! minimum pt for the fourth lepton in pt
 -1.0 = ptl1max ! maximum pt for the leading lepton in pt
 -1.0 = ptl2max ! maximum pt for the second lepton in pt
 -1.0 = ptl3max ! maximum pt for the third lepton in pt
 -1.0 = ptl4max ! maximum pt for the fourth lepton in pt
#*********************************************************************
# Control the Ht(k)=Sum of k leading jets *
#*********************************************************************
 0.0 = htjmin ! minimum jet HT=Sum(jet pt)
 -1.0 = htjmax ! maximum jet HT=Sum(jet pt)
 0.0 = ihtmin !inclusive Ht for all partons (including b)
 -1.0 = ihtmax !inclusive Ht for all partons (including b)
 0.0 = ht2min ! minimum Ht for the two leading jets
 0.0 = ht3min ! minimum Ht for the three leading jets
 0.0 = ht4min ! minimum Ht for the four leading jets
 -1.0 = ht2max ! maximum Ht for the two leading jets
 -1.0 = ht3max ! maximum Ht for the three leading jets
 -1.0 = ht4max ! maximum Ht for the four leading jets
#***********************************************************************
# Photon-isolation cuts, according to hep-ph/9801442 *
# When ptgmin=0, all the other parameters are ignored *
# When ptgmin>0, pta and draj are not going to be used *
#***********************************************************************
 0.0 = ptgmin ! Min photon transverse momentum
 0.4 = R0gamma ! Radius of isolation code
 1.0 = xn ! n parameter of eq.(3.4) in hep-ph/9801442
 1.0 = epsgamma ! epsilon_gamma parameter of eq.(3.4) in hep-ph/9801442
 True = isoEM ! isolate photons from EM energy (photons and leptons)
#*********************************************************************
# WBF cuts *
#*********************************************************************
 0.0 = xetamin ! minimum rapidity for two jets in the WBF case
 0.0 = deltaeta ! minimum rapidity for two jets in the WBF case
#*********************************************************************
# KT DURHAM CUT *
#*********************************************************************
 -1.0 = ktdurham
 0.4 = dparameter
#*********************************************************************
# maximal pdg code for quark to be considered as a light jet *
# (otherwise b cuts are applied) *
#*********************************************************************
 4 = maxjetflavor ! Maximum jet pdg code
#*********************************************************************
# Jet measure cuts *
#*********************************************************************
 15.0 = xqcut ! minimum kt jet measure between partons
#*********************************************************************
#
#*********************************************************************
# Store info for systematics studies *
# WARNING: If use_syst is T, matched Pythia output is *
# meaningful ONLY if plotted taking matchscale *
# reweighting into account! *
#*********************************************************************
   False = use_syst ! Enable systematics studies
#
#**************************************
# Parameter of the systematics study
# will be used by SysCalc (if installed)
#**************************************
#
0.5 1 2 = sys_scalefact # factorization/renormalization scale factor
0.5 1 2 = sys_alpsfact # \alpha_s emission scale factors
30 50 = sys_matchscale # variation of merging scale
# PDF sets and number of members (0 or none for all members).
NNPDF23_lo_as_0130_qed = sys_pdf # matching scales
# MSTW2008nlo68cl.LHgrid 1 = sys_pdf
</MGRunCard>
<slha>
######################################################################
## PARAM_CARD AUTOMATICALY GENERATED BY MG5 FOLLOWING UFO MODEL ####
######################################################################
## ##
## Width set on Auto will be computed following the information ##
## present in the decay.py files of the model. ##
## See arXiv:1402.1178 for more details. ##
## ##
######################################################################

###################################
## INFORMATION FOR MASS
###################################
Block mass
    5 4.700000e+00 # MB
    6 1.730000e+02 # MT
   15 1.777000e+00 # MTA
   23 9.118800e+01 # MZ
   25 1.250000e+02 # MH
## Dependent parameters, given by model restrictions.
## Those values should be edited following the
## analytical expression. MG5 ignores those values
## but they are important for interfacing the output of MG5
## to external program such as Pythia.
  1 0.000000 # d : 0.0
  2 0.000000 # u : 0.0
  3 0.000000 # s : 0.0
  4 0.000000 # c : 0.0
  11 0.000000 # e- : 0.0
  12 0.000000 # ve : 0.0
  13 0.000000 # mu- : 0.0
  14 0.000000 # vm : 0.0
  16 0.000000 # vt : 0.0
  21 0.000000 # g : 0.0
  22 0.000000 # a : 0.0
  24 80.419002 # w+ : cmath.sqrt(MZ__exp__2/2. + cmath.sqrt(MZ__exp__4/4. - (aEW*cmath.pi*MZ__exp__2)/(Gf*sqrt__2)))

###################################
## INFORMATION FOR SMINPUTS
###################################
Block sminputs
    1 1.325070e+02 # aEWM1
    2 1.166390e-05 # Gf
    3 1.180000e-01 # aS

###################################
## INFORMATION FOR YUKAWA
###################################
Block yukawa
    5 4.700000e+00 # ymb
    6 1.730000e+02 # ymt
   15 1.777000e+00 # ymtau

###################################
## INFORMATION FOR DECAY
###################################
DECAY 6 1.491500e+00 # WT
DECAY 23 2.441404e+00 # WZ
DECAY 24 2.047600e+00 # WW
DECAY 25 6.382339e-03 # WH
## Dependent parameters, given by model restrictions.
## Those values should be edited following the
## analytical expression. MG5 ignores those values
## but they are important for interfacing the output of MG5
## to external program such as Pythia.
DECAY 1 0.000000 # d : 0.0
DECAY 2 0.000000 # u : 0.0
DECAY 3 0.000000 # s : 0.0
DECAY 4 0.000000 # c : 0.0
DECAY 5 0.000000 # b : 0.0
DECAY 11 0.000000 # e- : 0.0
DECAY 12 0.000000 # ve : 0.0
DECAY 13 0.000000 # mu- : 0.0
DECAY 14 0.000000 # vm : 0.0
DECAY 15 0.000000 # ta- : 0.0
DECAY 16 0.000000 # vt : 0.0
DECAY 21 0.000000 # g : 0.0
DECAY 22 0.000000 # a : 0.0
</slha>
<MGPythiaCard>
!...Parton showering on or off
      MSTP(61)=1
      MSTP(71)=1

!...Fragmentation/hadronization on or off
      MSTJ(1)=1

!...Multiple interactions on or off
      MSTP(81)=20

!...Don't stop execution after 10 errors
      MSTU(21)=1

!...PDFset if MG set not supported by pythia-pgs package (set in lhapdf5 or higher)
      LHAID= 10041

     LHAPATH=/Users/anke/programs/MadGraph_v2_4_3/pythia-pgs/src/PDFsets
</MGPythiaCard>
<MGGenerationInfo>
# Number of Events : 5000
# Integrated weight (pb) : 5.62139961145
# Matched Integrated weight (pb) : 1.721
</MGGenerationInfo>
</header>
<init>
2212 2212 6.500000e+03 6.500000e+03 0 0 247000 247000 -3 2
2.796506e+00 1.419875e-02 1.124280e-03 1
2.493033e-01 2.915183e-03 1.124280e-03 2
<generator name='MadGraph5_aMC@NLO' version='5.2.4.3'>please cite 1405.0301 </generator>
</init>
</LesHouchesEvents>

Revision history for this message
anke (anke.b) said :
#2

<LesHouchesEvents version="3.0">
<header>
<!--
#*********************************************************************
# *
# MadGraph5_aMC@NLO *
# *
# Going Beyond *
# *
# http://madgraph.hep.uiuc.edu *
# http://madgraph.phys.ucl.ac.be *
# http://amcatnlo.cern.ch *
# *
# The MadGraph5_aMC@NLO team *
# *
#....................................................................*
# *
# This file contains all the information necessary to reproduce *
# the events generated: *
# *
# 1. software version *
# 2. proc_card : code generation info including model *
# 3. param_card : model primary parameters in the LH format *
# 4. run_card : running parameters (collider and cuts) *
# 5. pythia_card : present only if pythia has been run *
# 6. pgs_card : present only if pgs has been run *
# 7. delphes_cards : present only if delphes has been run *
# *
# *
#*********************************************************************
-->
<MGVersion>
#2.5.2
</MGVersion>
<MG5ProcCard>
#************************************************************
#* MadGraph5_aMC@NLO *
#* *
#* * * *
#* * * * * *
#* * * * * 5 * * * * *
#* * * * * *
#* * * *
#* *
#* *
#* VERSION 2.5.2 2016-12-10 *
#* *
#* The MadGraph5_aMC@NLO Development Team - Find us at *
#* https://server06.fynu.ucl.ac.be/projects/madgraph *
#* *
#************************************************************
#* *
#* Command File for MadGraph5_aMC@NLO *
#* *
#* run as ./bin/mg5_aMC filename *
#* *
#************************************************************
set group_subprocesses Auto
set ignore_six_quark_processes False
set loop_optimized_output True
set low_mem_multicore_nlo_generation False
set loop_color_flows False
set gauge unitary
set complex_mass_scheme False
set max_npoint_for_channel 0
import model sm
define p = g u c d s u~ c~ d~ s~
define j = g u c d s u~ c~ d~ s~
define l+ = e+ mu+
define l- = e- mu-
define vl = ve vm vt
define vl~ = ve~ vm~ vt~
generate p p > vm vm~ j j QCD=0
add process p p > vm vm~ j j j QCD=1
output Z_inv_5_2_2
</MG5ProcCard>
<MGProcCard>
#*********************************************************************
# MadGraph/MadEvent *
# http://madgraph.hep.uiuc.edu *
# *
# proc_card.dat *
#*********************************************************************
# *
# This Files is generated by MADGRAPH 5 *
# *
# WARNING: This Files is generated for MADEVENT (compatibility issue)*
# This files is NOT a valid MG4 proc_card.dat *
# Running this in MG4 will NEVER reproduce the result of MG5*
# *
#*********************************************************************
#*********************************************************************
# Process(es) requested : mg2 input *
#*********************************************************************
# Begin PROCESS # This is TAG. Do not modify this line
p p > vm vm~ j j #Process
# Be carefull the coupling are here in MG5 convention
QCD=0

end_coup # End the couplings input

done # this tells MG there are no more procs
# End PROCESS # This is TAG. Do not modify this line
#*********************************************************************
# Model information *
#*********************************************************************
# Begin MODEL # This is TAG. Do not modify this line
sm
# End MODEL # This is TAG. Do not modify this line
#*********************************************************************
# Start multiparticle definitions *
#*********************************************************************
# Begin MULTIPARTICLES # This is TAG. Do not modify this line

# End MULTIPARTICLES # This is TAG. Do not modify this line
</MGProcCard>
<MGRunCard>
#*********************************************************************
# MadGraph5_aMC@NLO *
# *
# run_card.dat MadEvent *
# *
# This file is used to set the parameters of the run. *
# *
# Some notation/conventions: *
# *
# Lines starting with a '# ' are info or comments *
# *
# mind the format: value = variable ! comment *
#*********************************************************************
#
#*******************
# Running parameters
#*******************
#
#*********************************************************************
# Tag name for the run (one word) *
#*********************************************************************
  tag_1 = run_tag ! name of the run
#*********************************************************************
# Number of events and rnd seed *
# Warning: Do not generate more than 1M events in a single run *
# If you want to run Pythia, avoid more than 50k events in a run. *
#*********************************************************************
  5000 = nevents ! Number of unweighted events requested
 30 = iseed ! rnd seed (0=assigned automatically=default))
#*********************************************************************
# Collider type and energy *
# lpp: 0=No PDF, 1=proton, -1=antiproton, 2=photon from proton, *
# 3=photon from electron *
#*********************************************************************
     1 = lpp1 ! beam 1 type
     1 = lpp2 ! beam 2 type
     6500.0 = ebeam1 ! beam 1 total energy in GeV
     6500.0 = ebeam2 ! beam 2 total energy in GeV
#*********************************************************************
# Beam polarization from -100 (left-handed) to 100 (right-handed) *
#*********************************************************************
     0.0 = polbeam1 ! beam polarization for beam 1
     0.0 = polbeam2 ! beam polarization for beam 2
#*********************************************************************
# PDF CHOICE: this automatically fixes also alpha_s and its evol. *
#*********************************************************************
     nn23lo1 = pdlabel ! PDF set
     230000 = lhaid ! if pdlabel=lhapdf, this is the lhapdf number
#*********************************************************************
# Renormalization and factorization scales *
#*********************************************************************
 False = fixed_ren_scale ! if .true. use fixed ren scale
 False = fixed_fac_scale ! if .true. use fixed fac scale
 91.188 = scale ! fixed ren scale
 91.188 = dsqrt_q2fact1 ! fixed fact scale for pdf1
 91.188 = dsqrt_q2fact2 ! fixed fact scale for pdf2
 -1 = dynamical_scale_choice ! Choose one of the preselected dynamical choices
 1.0 = scalefact ! scale factor for event-by-event scales
#*********************************************************************
# Type and output format
#*********************************************************************
  False = gridpack !True = setting up the grid pack
  -1.0 = time_of_flight ! threshold (in mm) below which the invariant livetime is not written (-1 means not written)
  3.0 = lhe_version ! Change the way clustering information pass to shower.
  True = clusinfo ! include clustering tag in output
  sum = event_norm ! average/sum. Normalization of the weight in the LHEF

#*********************************************************************
# Matching parameter (MLM only)
#*********************************************************************
 1 = ickkw ! 0 no matching, 1 MLM
 1.0 = alpsfact ! scale factor for QCD emission vx
 False = chcluster ! cluster only according to channel diag
 4 = asrwgtflavor ! highest quark flavor for a_s reweight
 False = auto_ptj_mjj ! Automatic setting of ptj and mjj if xqcut >0
                                   ! (turn off for VBF and single top processes)
 15.0 = xqcut ! minimum kt jet measure between partons
#*********************************************************************
#
#*********************************************************************
# handling of the helicities:
# 0: sum over all helicities
# 1: importance sampling over helicities
#*********************************************************************
   0 = nhel ! using helicities importance sampling or not.
#*********************************************************************
# Generation bias, check the wiki page below for more information: *
# 'cp3.irmp.ucl.ac.be/projects/madgraph/wiki/LOEventGenerationBias' *
#*********************************************************************
 None = bias_module ! Bias type of bias, [None, ptj_bias, -custom_folder-]
 {} = bias_parameters ! Specifies the parameters of the module.
#
#*******************************
# Parton level cuts definition *
#*******************************
#
#
#*********************************************************************
# BW cutoff (M+/-bwcutoff*Gamma) ! Define on/off-shell for "$" and decay
#*********************************************************************
  15.0 = bwcutoff ! (M+/-bwcutoff*Gamma)
#*********************************************************************
# Apply pt/E/eta/dr/mij/kt_durham cuts on decay products or not
# (note that etmiss/ptll/ptheavy/ht/sorted cuts always apply)
#*********************************************************************
   False = cut_decays ! Cut decay products
#*********************************************************************
# Standard Cuts *
#*********************************************************************
# Minimum and maximum pt's (for max, -1 means no cut) *
#*********************************************************************
 10.0 = ptj ! minimum pt for the jets
 0.0 = ptb ! minimum pt for the b
 2.0 = pta ! minimum pt for the photons
 2.0 = ptl ! minimum pt for the charged leptons
 0.0 = misset ! minimum missing Et (sum of neutrino's momenta)
 0.0 = ptheavy ! minimum pt for one heavy final state
 -1.0 = ptjmax ! maximum pt for the jets
 -1.0 = ptbmax ! maximum pt for the b
 -1.0 = ptamax ! maximum pt for the photons
 -1.0 = ptlmax ! maximum pt for the charged leptons
 -1.0 = missetmax ! maximum missing Et (sum of neutrino's momenta)
#*********************************************************************
# Minimum and maximum E's (in the center of mass frame) *
#*********************************************************************
  0.0 = ej ! minimum E for the jets
  0.0 = eb ! minimum E for the b
  0.0 = ea ! minimum E for the photons
  0.0 = el ! minimum E for the charged leptons
  -1.0 = ejmax ! maximum E for the jets
 -1.0 = ebmax ! maximum E for the b
 -1.0 = eamax ! maximum E for the photons
 -1.0 = elmax ! maximum E for the charged leptons
#*********************************************************************
# Maximum and minimum absolute rapidity (for max, -1 means no cut) *
#*********************************************************************
  -1.0 = etaj ! max rap for the jets
  -1.0 = etab ! max rap for the b
 -1.0 = etaa ! max rap for the photons
 -1.0 = etal ! max rap for the charged leptons
 0.0 = etajmin ! min rap for the jets
 0.0 = etabmin ! min rap for the b
 0.0 = etaamin ! min rap for the photons
 0.0 = etalmin ! main rap for the charged leptons
#*********************************************************************
# Minimum and maximum DeltaR distance *
#*********************************************************************
 0.0 = drjj ! min distance between jets
 0.0 = drbb ! min distance between b's
 0.0 = drll ! min distance between leptons
 0.0 = draa ! min distance between gammas
 0.0 = drbj ! min distance between b and jet
 0.0 = draj ! min distance between gamma and jet
 0.0 = drjl ! min distance between jet and lepton
 0.0 = drab ! min distance between gamma and b
 0.0 = drbl ! min distance between b and lepton
 0.0 = dral ! min distance between gamma and lepton
 -1.0 = drjjmax ! max distance between jets
 -1.0 = drbbmax ! max distance between b's
 -1.0 = drllmax ! max distance between leptons
 -1.0 = draamax ! max distance between gammas
 -1.0 = drbjmax ! max distance between b and jet
 -1.0 = drajmax ! max distance between gamma and jet
 -1.0 = drjlmax ! max distance between jet and lepton
 -1.0 = drabmax ! max distance between gamma and b
 -1.0 = drblmax ! max distance between b and lepton
 -1.0 = dralmax ! maxdistance between gamma and lepton
#*********************************************************************
# Minimum and maximum invariant mass for pairs *
# WARNING: for four lepton final state mmll cut require to have *
# different lepton masses for each flavor! *
#*********************************************************************
 0.0 = mmjj ! min invariant mass of a jet pair
 0.0 = mmbb ! min invariant mass of a b pair
 0.0 = mmaa ! min invariant mass of gamma gamma pair
 0.0 = mmll ! min invariant mass of l+l- (same flavour) lepton pair
 -1.0 = mmjjmax ! max invariant mass of a jet pair
 -1.0 = mmbbmax ! max invariant mass of a b pair
 -1.0 = mmaamax ! max invariant mass of gamma gamma pair
 -1.0 = mmllmax ! max invariant mass of l+l- (same flavour) lepton pair
#*********************************************************************
# Minimum and maximum invariant mass for all letpons *
#*********************************************************************
 0.0 = mmnl ! min invariant mass for all letpons (l+- and vl)
 -1.0 = mmnlmax ! max invariant mass for all letpons (l+- and vl)
#*********************************************************************
# Minimum and maximum pt for 4-momenta sum of leptons *
#*********************************************************************
 0.0 = ptllmin ! Minimum pt for 4-momenta sum of leptons(l and vl)
 -1.0 = ptllmax ! Maximum pt for 4-momenta sum of leptons(l and vl)
#*********************************************************************
# Inclusive cuts *
#*********************************************************************
 0.0 = xptj ! minimum pt for at least one jet
 0.0 = xptb ! minimum pt for at least one b
 0.0 = xpta ! minimum pt for at least one photon
 0.0 = xptl ! minimum pt for at least one charged lepton
#*********************************************************************
# Control the pt's of the jets sorted by pt *
#*********************************************************************
 0.0 = ptj1min ! minimum pt for the leading jet in pt
 0.0 = ptj2min ! minimum pt for the second jet in pt
 0.0 = ptj3min ! minimum pt for the third jet in pt
 0.0 = ptj4min ! minimum pt for the fourth jet in pt
 -1.0 = ptj1max ! maximum pt for the leading jet in pt
 -1.0 = ptj2max ! maximum pt for the second jet in pt
 -1.0 = ptj3max ! maximum pt for the third jet in pt
 -1.0 = ptj4max ! maximum pt for the fourth jet in pt
 0 = cutuse ! reject event if fails any (0) / all (1) jet pt cuts
#*********************************************************************
# Control the pt's of leptons sorted by pt *
#*********************************************************************
 0.0 = ptl1min ! minimum pt for the leading lepton in pt
 0.0 = ptl2min ! minimum pt for the second lepton in pt
 0.0 = ptl3min ! minimum pt for the third lepton in pt
 0.0 = ptl4min ! minimum pt for the fourth lepton in pt
 -1.0 = ptl1max ! maximum pt for the leading lepton in pt
 -1.0 = ptl2max ! maximum pt for the second lepton in pt
 -1.0 = ptl3max ! maximum pt for the third lepton in pt
 -1.0 = ptl4max ! maximum pt for the fourth lepton in pt
#*********************************************************************
# Control the Ht(k)=Sum of k leading jets *
#*********************************************************************
 0.0 = htjmin ! minimum jet HT=Sum(jet pt)
 -1.0 = htjmax ! maximum jet HT=Sum(jet pt)
 0.0 = ihtmin !inclusive Ht for all partons (including b)
 -1.0 = ihtmax !inclusive Ht for all partons (including b)
 0.0 = ht2min ! minimum Ht for the two leading jets
 0.0 = ht3min ! minimum Ht for the three leading jets
 0.0 = ht4min ! minimum Ht for the four leading jets
 -1.0 = ht2max ! maximum Ht for the two leading jets
 -1.0 = ht3max ! maximum Ht for the three leading jets
 -1.0 = ht4max ! maximum Ht for the four leading jets
#***********************************************************************
# Photon-isolation cuts, according to hep-ph/9801442 *
# When ptgmin=0, all the other parameters are ignored *
# When ptgmin>0, pta and draj are not going to be used *
#***********************************************************************
 0.0 = ptgmin ! Min photon transverse momentum
 0.4 = R0gamma ! Radius of isolation code
 1.0 = xn ! n parameter of eq.(3.4) in hep-ph/9801442
 1.0 = epsgamma ! epsilon_gamma parameter of eq.(3.4) in hep-ph/9801442
 True = isoEM ! isolate photons from EM energy (photons and leptons)
#*********************************************************************
# WBF cuts *
#*********************************************************************
 0.0 = xetamin ! minimum rapidity for two jets in the WBF case
 0.0 = deltaeta ! minimum rapidity for two jets in the WBF case
#***********************************************************************
# Turn on either the ktdurham or ptlund cut to activate *
# CKKW(L) merging with Pythia8 [arXiv:1410.3012, arXiv:1109.4829] *
#***********************************************************************
 -1.0 = ktdurham
 0.4 = dparameter
 -1.0 = ptlund
 1, 2, 3, 4, 5, 6, 21 = pdgs_for_merging_cut ! PDGs for two cuts above
#*********************************************************************
# maximal pdg code for quark to be considered as a light jet *
# (otherwise b cuts are applied) *
#*********************************************************************
 4 = maxjetflavor ! Maximum jet pdg code
#*********************************************************************
#
#*********************************************************************
# Store info for systematics studies *
# WARNING: Do not use for interference type of computation *
#*********************************************************************
   False = use_syst ! Enable systematics studies
#
#**************************************
# Parameter of the systematics study
# will be used by SysCalc (if installed)
#**************************************
#
0.5 1 2 = sys_scalefact # factorization/renormalization scale factor
0.5 1 2 = sys_alpsfact # \alpha_s emission scale factors
30 50 = sys_matchscale # variation of merging scale
# PDF sets and number of members (0 or none for all members).
NNPDF23_lo_as_0130_qed = sys_pdf # list of pdf sets
# MSTW2008nlo68cl.LHgrid 1 = sys_pdf
#
</MGRunCard>
<slha>
######################################################################
## PARAM_CARD AUTOMATICALY GENERATED BY MG5 FOLLOWING UFO MODEL ####
######################################################################
## ##
## Width set on Auto will be computed following the information ##
## present in the decay.py files of the model. ##
## See arXiv:1402.1178 for more details. ##
## ##
######################################################################

###################################
## INFORMATION FOR MASS
###################################
Block mass
    5 4.700000e+00 # MB
    6 1.730000e+02 # MT
   15 1.777000e+00 # MTA
   23 9.118800e+01 # MZ
   25 1.250000e+02 # MH
## Dependent parameters, given by model restrictions.
## Those values should be edited following the
## analytical expression. MG5 ignores those values
## but they are important for interfacing the output of MG5
## to external program such as Pythia.
  1 0.000000 # d : 0.0
  2 0.000000 # u : 0.0
  3 0.000000 # s : 0.0
  4 0.000000 # c : 0.0
  11 0.000000 # e- : 0.0
  12 0.000000 # ve : 0.0
  13 0.000000 # mu- : 0.0
  14 0.000000 # vm : 0.0
  16 0.000000 # vt : 0.0
  21 0.000000 # g : 0.0
  22 0.000000 # a : 0.0
  24 80.419002 # w+ : cmath.sqrt(MZ__exp__2/2. + cmath.sqrt(MZ__exp__4/4. - (aEW*cmath.pi*MZ__exp__2)/(Gf*sqrt__2)))

###################################
## INFORMATION FOR SMINPUTS
###################################
Block sminputs
    1 1.325070e+02 # aEWM1
    2 1.166390e-05 # Gf
    3 1.180000e-01 # aS

###################################
## INFORMATION FOR YUKAWA
###################################
Block yukawa
    5 4.700000e+00 # ymb
    6 1.730000e+02 # ymt
   15 1.777000e+00 # ymtau

###################################
## INFORMATION FOR DECAY
###################################
DECAY 6 1.491500e+00 # WT
DECAY 23 2.441404e+00 # WZ
DECAY 24 2.047600e+00 # WW
DECAY 25 6.382339e-03 # WH
## Dependent parameters, given by model restrictions.
## Those values should be edited following the
## analytical expression. MG5 ignores those values
## but they are important for interfacing the output of MG5
## to external program such as Pythia.
DECAY 1 0.000000 # d : 0.0
DECAY 2 0.000000 # u : 0.0
DECAY 3 0.000000 # s : 0.0
DECAY 4 0.000000 # c : 0.0
DECAY 5 0.000000 # b : 0.0
DECAY 11 0.000000 # e- : 0.0
DECAY 12 0.000000 # ve : 0.0
DECAY 13 0.000000 # mu- : 0.0
DECAY 14 0.000000 # vm : 0.0
DECAY 15 0.000000 # ta- : 0.0
DECAY 16 0.000000 # vt : 0.0
DECAY 21 0.000000 # g : 0.0
DECAY 22 0.000000 # a : 0.0
</slha>
<MGPythiaCard>
!...Parton showering on or off
      MSTP(61)=1
      MSTP(71)=1

!...Fragmentation/hadronization on or off
      MSTJ(1)=1

!...Multiple interactions on or off
      MSTP(81)=20

!...Don't stop execution after 10 errors
      MSTU(21)=1

!...PDFset if MG set not supported by pythia-pgs package (set in lhapdf5 or higher)
      LHAID= 10041

     LHAPATH=/Users/anke/programs/MG5_aMC_v2_5_2/pythia-pgs/src/PDFsets
</MGPythiaCard>
<MGGenerationInfo>
# Number of Events : 5000
# Integrated weight (pb) : 5.66136295519
# Matched Integrated weight (pb) : 2.812
</MGGenerationInfo>
</header>
<init>
2212 2212 6.500000e+03 6.500000e+03 0 0 247000 247000 -3 2
2.798259e+00 1.339295e-02 1.132273e-03 1
2.863104e+00 1.328059e-02 1.132273e-03 2
<generator name='MadGraph5_aMC@NLO' version='2.5.2'>please cite 1405.0301 </generator>
</init>
</LesHouchesEvents>

Revision history for this message
Olivier Mattelaer (olivier-mattelaer) said :
#3

Dear Anke,

So your cross-section before the matching veto is actually the same in both code:
      5.62139961145 vs 5.66136295519

So the difference is in the pythia6 module which is not supported anymore in 2.5.2.
I would suggest to use the pythia8 module.

Cheers,

Olivier

> On 2 Mar 2017, at 18:24, anke <email address hidden> wrote:
>
> Question #515385 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/515385
>
> anke gave more information on the question:
> <LesHouchesEvents version="3.0">
> <header>
> <!--
> #*********************************************************************
> # *
> # MadGraph5_aMC@NLO *
> # *
> # Going Beyond *
> # *
> # http://madgraph.hep.uiuc.edu *
> # http://madgraph.phys.ucl.ac.be *
> # http://amcatnlo.cern.ch *
> # *
> # The MadGraph5_aMC@NLO team *
> # *
> #....................................................................*
> # *
> # This file contains all the information necessary to reproduce *
> # the events generated: *
> # *
> # 1. software version *
> # 2. proc_card : code generation info including model *
> # 3. param_card : model primary parameters in the LH format *
> # 4. run_card : running parameters (collider and cuts) *
> # 5. pythia_card : present only if pythia has been run *
> # 6. pgs_card : present only if pgs has been run *
> # 7. delphes_cards : present only if delphes has been run *
> # *
> # *
> #*********************************************************************
> -->
> <MGVersion>
> #2.5.2
> </MGVersion>
> <MG5ProcCard>
> #************************************************************
> #* MadGraph5_aMC@NLO *
> #* *
> #* * * *
> #* * * * * *
> #* * * * * 5 * * * * *
> #* * * * * *
> #* * * *
> #* *
> #* *
> #* VERSION 2.5.2 2016-12-10 *
> #* *
> #* The MadGraph5_aMC@NLO Development Team - Find us at *
> #* https://server06.fynu.ucl.ac.be/projects/madgraph *
> #* *
> #************************************************************
> #* *
> #* Command File for MadGraph5_aMC@NLO *
> #* *
> #* run as ./bin/mg5_aMC filename *
> #* *
> #************************************************************
> set group_subprocesses Auto
> set ignore_six_quark_processes False
> set loop_optimized_output True
> set low_mem_multicore_nlo_generation False
> set loop_color_flows False
> set gauge unitary
> set complex_mass_scheme False
> set max_npoint_for_channel 0
> import model sm
> define p = g u c d s u~ c~ d~ s~
> define j = g u c d s u~ c~ d~ s~
> define l+ = e+ mu+
> define l- = e- mu-
> define vl = ve vm vt
> define vl~ = ve~ vm~ vt~
> generate p p > vm vm~ j j QCD=0
> add process p p > vm vm~ j j j QCD=1
> output Z_inv_5_2_2
> </MG5ProcCard>
> <MGProcCard>
> #*********************************************************************
> # MadGraph/MadEvent *
> # http://madgraph.hep.uiuc.edu *
> # *
> # proc_card.dat *
> #*********************************************************************
> # *
> # This Files is generated by MADGRAPH 5 *
> # *
> # WARNING: This Files is generated for MADEVENT (compatibility issue)*
> # This files is NOT a valid MG4 proc_card.dat *
> # Running this in MG4 will NEVER reproduce the result of MG5*
> # *
> #*********************************************************************
> #*********************************************************************
> # Process(es) requested : mg2 input *
> #*********************************************************************
> # Begin PROCESS # This is TAG. Do not modify this line
> p p > vm vm~ j j #Process
> # Be carefull the coupling are here in MG5 convention
> QCD=0
>
> end_coup # End the couplings input
>
> done # this tells MG there are no more procs
> # End PROCESS # This is TAG. Do not modify this line
> #*********************************************************************
> # Model information *
> #*********************************************************************
> # Begin MODEL # This is TAG. Do not modify this line
> sm
> # End MODEL # This is TAG. Do not modify this line
> #*********************************************************************
> # Start multiparticle definitions *
> #*********************************************************************
> # Begin MULTIPARTICLES # This is TAG. Do not modify this line
>
> # End MULTIPARTICLES # This is TAG. Do not modify this line
> </MGProcCard>
> <MGRunCard>
> #*********************************************************************
> # MadGraph5_aMC@NLO *
> # *
> # run_card.dat MadEvent *
> # *
> # This file is used to set the parameters of the run. *
> # *
> # Some notation/conventions: *
> # *
> # Lines starting with a '# ' are info or comments *
> # *
> # mind the format: value = variable ! comment *
> #*********************************************************************
> #
> #*******************
> # Running parameters
> #*******************
> #
> #*********************************************************************
> # Tag name for the run (one word) *
> #*********************************************************************
> tag_1 = run_tag ! name of the run
> #*********************************************************************
> # Number of events and rnd seed *
> # Warning: Do not generate more than 1M events in a single run *
> # If you want to run Pythia, avoid more than 50k events in a run. *
> #*********************************************************************
> 5000 = nevents ! Number of unweighted events requested
> 30 = iseed ! rnd seed (0=assigned automatically=default))
> #*********************************************************************
> # Collider type and energy *
> # lpp: 0=No PDF, 1=proton, -1=antiproton, 2=photon from proton, *
> # 3=photon from electron *
> #*********************************************************************
> 1 = lpp1 ! beam 1 type
> 1 = lpp2 ! beam 2 type
> 6500.0 = ebeam1 ! beam 1 total energy in GeV
> 6500.0 = ebeam2 ! beam 2 total energy in GeV
> #*********************************************************************
> # Beam polarization from -100 (left-handed) to 100 (right-handed) *
> #*********************************************************************
> 0.0 = polbeam1 ! beam polarization for beam 1
> 0.0 = polbeam2 ! beam polarization for beam 2
> #*********************************************************************
> # PDF CHOICE: this automatically fixes also alpha_s and its evol. *
> #*********************************************************************
> nn23lo1 = pdlabel ! PDF set
> 230000 = lhaid ! if pdlabel=lhapdf, this is the lhapdf number
> #*********************************************************************
> # Renormalization and factorization scales *
> #*********************************************************************
> False = fixed_ren_scale ! if .true. use fixed ren scale
> False = fixed_fac_scale ! if .true. use fixed fac scale
> 91.188 = scale ! fixed ren scale
> 91.188 = dsqrt_q2fact1 ! fixed fact scale for pdf1
> 91.188 = dsqrt_q2fact2 ! fixed fact scale for pdf2
> -1 = dynamical_scale_choice ! Choose one of the preselected dynamical choices
> 1.0 = scalefact ! scale factor for event-by-event scales
> #*********************************************************************
> # Type and output format
> #*********************************************************************
> False = gridpack !True = setting up the grid pack
> -1.0 = time_of_flight ! threshold (in mm) below which the invariant livetime is not written (-1 means not written)
> 3.0 = lhe_version ! Change the way clustering information pass to shower.
> True = clusinfo ! include clustering tag in output
> sum = event_norm ! average/sum. Normalization of the weight in the LHEF
>
> #*********************************************************************
> # Matching parameter (MLM only)
> #*********************************************************************
> 1 = ickkw ! 0 no matching, 1 MLM
> 1.0 = alpsfact ! scale factor for QCD emission vx
> False = chcluster ! cluster only according to channel diag
> 4 = asrwgtflavor ! highest quark flavor for a_s reweight
> False = auto_ptj_mjj ! Automatic setting of ptj and mjj if xqcut >0
> ! (turn off for VBF and single top processes)
> 15.0 = xqcut ! minimum kt jet measure between partons
> #*********************************************************************
> #
> #*********************************************************************
> # handling of the helicities:
> # 0: sum over all helicities
> # 1: importance sampling over helicities
> #*********************************************************************
> 0 = nhel ! using helicities importance sampling or not.
> #*********************************************************************
> # Generation bias, check the wiki page below for more information: *
> # 'cp3.irmp.ucl.ac.be/projects/madgraph/wiki/LOEventGenerationBias' *
> #*********************************************************************
> None = bias_module ! Bias type of bias, [None, ptj_bias, -custom_folder-]
> {} = bias_parameters ! Specifies the parameters of the module.
> #
> #*******************************
> # Parton level cuts definition *
> #*******************************
> #
> #
> #*********************************************************************
> # BW cutoff (M+/-bwcutoff*Gamma) ! Define on/off-shell for "$" and decay
> #*********************************************************************
> 15.0 = bwcutoff ! (M+/-bwcutoff*Gamma)
> #*********************************************************************
> # Apply pt/E/eta/dr/mij/kt_durham cuts on decay products or not
> # (note that etmiss/ptll/ptheavy/ht/sorted cuts always apply)
> #*********************************************************************
> False = cut_decays ! Cut decay products
> #*********************************************************************
> # Standard Cuts *
> #*********************************************************************
> # Minimum and maximum pt's (for max, -1 means no cut) *
> #*********************************************************************
> 10.0 = ptj ! minimum pt for the jets
> 0.0 = ptb ! minimum pt for the b
> 2.0 = pta ! minimum pt for the photons
> 2.0 = ptl ! minimum pt for the charged leptons
> 0.0 = misset ! minimum missing Et (sum of neutrino's momenta)
> 0.0 = ptheavy ! minimum pt for one heavy final state
> -1.0 = ptjmax ! maximum pt for the jets
> -1.0 = ptbmax ! maximum pt for the b
> -1.0 = ptamax ! maximum pt for the photons
> -1.0 = ptlmax ! maximum pt for the charged leptons
> -1.0 = missetmax ! maximum missing Et (sum of neutrino's momenta)
> #*********************************************************************
> # Minimum and maximum E's (in the center of mass frame) *
> #*********************************************************************
> 0.0 = ej ! minimum E for the jets
> 0.0 = eb ! minimum E for the b
> 0.0 = ea ! minimum E for the photons
> 0.0 = el ! minimum E for the charged leptons
> -1.0 = ejmax ! maximum E for the jets
> -1.0 = ebmax ! maximum E for the b
> -1.0 = eamax ! maximum E for the photons
> -1.0 = elmax ! maximum E for the charged leptons
> #*********************************************************************
> # Maximum and minimum absolute rapidity (for max, -1 means no cut) *
> #*********************************************************************
> -1.0 = etaj ! max rap for the jets
> -1.0 = etab ! max rap for the b
> -1.0 = etaa ! max rap for the photons
> -1.0 = etal ! max rap for the charged leptons
> 0.0 = etajmin ! min rap for the jets
> 0.0 = etabmin ! min rap for the b
> 0.0 = etaamin ! min rap for the photons
> 0.0 = etalmin ! main rap for the charged leptons
> #*********************************************************************
> # Minimum and maximum DeltaR distance *
> #*********************************************************************
> 0.0 = drjj ! min distance between jets
> 0.0 = drbb ! min distance between b's
> 0.0 = drll ! min distance between leptons
> 0.0 = draa ! min distance between gammas
> 0.0 = drbj ! min distance between b and jet
> 0.0 = draj ! min distance between gamma and jet
> 0.0 = drjl ! min distance between jet and lepton
> 0.0 = drab ! min distance between gamma and b
> 0.0 = drbl ! min distance between b and lepton
> 0.0 = dral ! min distance between gamma and lepton
> -1.0 = drjjmax ! max distance between jets
> -1.0 = drbbmax ! max distance between b's
> -1.0 = drllmax ! max distance between leptons
> -1.0 = draamax ! max distance between gammas
> -1.0 = drbjmax ! max distance between b and jet
> -1.0 = drajmax ! max distance between gamma and jet
> -1.0 = drjlmax ! max distance between jet and lepton
> -1.0 = drabmax ! max distance between gamma and b
> -1.0 = drblmax ! max distance between b and lepton
> -1.0 = dralmax ! maxdistance between gamma and lepton
> #*********************************************************************
> # Minimum and maximum invariant mass for pairs *
> # WARNING: for four lepton final state mmll cut require to have *
> # different lepton masses for each flavor! *
> #*********************************************************************
> 0.0 = mmjj ! min invariant mass of a jet pair
> 0.0 = mmbb ! min invariant mass of a b pair
> 0.0 = mmaa ! min invariant mass of gamma gamma pair
> 0.0 = mmll ! min invariant mass of l+l- (same flavour) lepton pair
> -1.0 = mmjjmax ! max invariant mass of a jet pair
> -1.0 = mmbbmax ! max invariant mass of a b pair
> -1.0 = mmaamax ! max invariant mass of gamma gamma pair
> -1.0 = mmllmax ! max invariant mass of l+l- (same flavour) lepton pair
> #*********************************************************************
> # Minimum and maximum invariant mass for all letpons *
> #*********************************************************************
> 0.0 = mmnl ! min invariant mass for all letpons (l+- and vl)
> -1.0 = mmnlmax ! max invariant mass for all letpons (l+- and vl)
> #*********************************************************************
> # Minimum and maximum pt for 4-momenta sum of leptons *
> #*********************************************************************
> 0.0 = ptllmin ! Minimum pt for 4-momenta sum of leptons(l and vl)
> -1.0 = ptllmax ! Maximum pt for 4-momenta sum of leptons(l and vl)
> #*********************************************************************
> # Inclusive cuts *
> #*********************************************************************
> 0.0 = xptj ! minimum pt for at least one jet
> 0.0 = xptb ! minimum pt for at least one b
> 0.0 = xpta ! minimum pt for at least one photon
> 0.0 = xptl ! minimum pt for at least one charged lepton
> #*********************************************************************
> # Control the pt's of the jets sorted by pt *
> #*********************************************************************
> 0.0 = ptj1min ! minimum pt for the leading jet in pt
> 0.0 = ptj2min ! minimum pt for the second jet in pt
> 0.0 = ptj3min ! minimum pt for the third jet in pt
> 0.0 = ptj4min ! minimum pt for the fourth jet in pt
> -1.0 = ptj1max ! maximum pt for the leading jet in pt
> -1.0 = ptj2max ! maximum pt for the second jet in pt
> -1.0 = ptj3max ! maximum pt for the third jet in pt
> -1.0 = ptj4max ! maximum pt for the fourth jet in pt
> 0 = cutuse ! reject event if fails any (0) / all (1) jet pt cuts
> #*********************************************************************
> # Control the pt's of leptons sorted by pt *
> #*********************************************************************
> 0.0 = ptl1min ! minimum pt for the leading lepton in pt
> 0.0 = ptl2min ! minimum pt for the second lepton in pt
> 0.0 = ptl3min ! minimum pt for the third lepton in pt
> 0.0 = ptl4min ! minimum pt for the fourth lepton in pt
> -1.0 = ptl1max ! maximum pt for the leading lepton in pt
> -1.0 = ptl2max ! maximum pt for the second lepton in pt
> -1.0 = ptl3max ! maximum pt for the third lepton in pt
> -1.0 = ptl4max ! maximum pt for the fourth lepton in pt
> #*********************************************************************
> # Control the Ht(k)=Sum of k leading jets *
> #*********************************************************************
> 0.0 = htjmin ! minimum jet HT=Sum(jet pt)
> -1.0 = htjmax ! maximum jet HT=Sum(jet pt)
> 0.0 = ihtmin !inclusive Ht for all partons (including b)
> -1.0 = ihtmax !inclusive Ht for all partons (including b)
> 0.0 = ht2min ! minimum Ht for the two leading jets
> 0.0 = ht3min ! minimum Ht for the three leading jets
> 0.0 = ht4min ! minimum Ht for the four leading jets
> -1.0 = ht2max ! maximum Ht for the two leading jets
> -1.0 = ht3max ! maximum Ht for the three leading jets
> -1.0 = ht4max ! maximum Ht for the four leading jets
> #***********************************************************************
> # Photon-isolation cuts, according to hep-ph/9801442 *
> # When ptgmin=0, all the other parameters are ignored *
> # When ptgmin>0, pta and draj are not going to be used *
> #***********************************************************************
> 0.0 = ptgmin ! Min photon transverse momentum
> 0.4 = R0gamma ! Radius of isolation code
> 1.0 = xn ! n parameter of eq.(3.4) in hep-ph/9801442
> 1.0 = epsgamma ! epsilon_gamma parameter of eq.(3.4) in hep-ph/9801442
> True = isoEM ! isolate photons from EM energy (photons and leptons)
> #*********************************************************************
> # WBF cuts *
> #*********************************************************************
> 0.0 = xetamin ! minimum rapidity for two jets in the WBF case
> 0.0 = deltaeta ! minimum rapidity for two jets in the WBF case
> #***********************************************************************
> # Turn on either the ktdurham or ptlund cut to activate *
> # CKKW(L) merging with Pythia8 [arXiv:1410.3012, arXiv:1109.4829] *
> #***********************************************************************
> -1.0 = ktdurham
> 0.4 = dparameter
> -1.0 = ptlund
> 1, 2, 3, 4, 5, 6, 21 = pdgs_for_merging_cut ! PDGs for two cuts above
> #*********************************************************************
> # maximal pdg code for quark to be considered as a light jet *
> # (otherwise b cuts are applied) *
> #*********************************************************************
> 4 = maxjetflavor ! Maximum jet pdg code
> #*********************************************************************
> #
> #*********************************************************************
> # Store info for systematics studies *
> # WARNING: Do not use for interference type of computation *
> #*********************************************************************
> False = use_syst ! Enable systematics studies
> #
> #**************************************
> # Parameter of the systematics study
> # will be used by SysCalc (if installed)
> #**************************************
> #
> 0.5 1 2 = sys_scalefact # factorization/renormalization scale factor
> 0.5 1 2 = sys_alpsfact # \alpha_s emission scale factors
> 30 50 = sys_matchscale # variation of merging scale
> # PDF sets and number of members (0 or none for all members).
> NNPDF23_lo_as_0130_qed = sys_pdf # list of pdf sets
> # MSTW2008nlo68cl.LHgrid 1 = sys_pdf
> #
> </MGRunCard>
> <slha>
> ######################################################################
> ## PARAM_CARD AUTOMATICALY GENERATED BY MG5 FOLLOWING UFO MODEL ####
> ######################################################################
> ## ##
> ## Width set on Auto will be computed following the information ##
> ## present in the decay.py files of the model. ##
> ## See arXiv:1402.1178 for more details. ##
> ## ##
> ######################################################################
>
> ###################################
> ## INFORMATION FOR MASS
> ###################################
> Block mass
> 5 4.700000e+00 # MB
> 6 1.730000e+02 # MT
> 15 1.777000e+00 # MTA
> 23 9.118800e+01 # MZ
> 25 1.250000e+02 # MH
> ## Dependent parameters, given by model restrictions.
> ## Those values should be edited following the
> ## analytical expression. MG5 ignores those values
> ## but they are important for interfacing the output of MG5
> ## to external program such as Pythia.
> 1 0.000000 # d : 0.0
> 2 0.000000 # u : 0.0
> 3 0.000000 # s : 0.0
> 4 0.000000 # c : 0.0
> 11 0.000000 # e- : 0.0
> 12 0.000000 # ve : 0.0
> 13 0.000000 # mu- : 0.0
> 14 0.000000 # vm : 0.0
> 16 0.000000 # vt : 0.0
> 21 0.000000 # g : 0.0
> 22 0.000000 # a : 0.0
> 24 80.419002 # w+ : cmath.sqrt(MZ__exp__2/2. + cmath.sqrt(MZ__exp__4/4. - (aEW*cmath.pi*MZ__exp__2)/(Gf*sqrt__2)))
>
> ###################################
> ## INFORMATION FOR SMINPUTS
> ###################################
> Block sminputs
> 1 1.325070e+02 # aEWM1
> 2 1.166390e-05 # Gf
> 3 1.180000e-01 # aS
>
> ###################################
> ## INFORMATION FOR YUKAWA
> ###################################
> Block yukawa
> 5 4.700000e+00 # ymb
> 6 1.730000e+02 # ymt
> 15 1.777000e+00 # ymtau
>
> ###################################
> ## INFORMATION FOR DECAY
> ###################################
> DECAY 6 1.491500e+00 # WT
> DECAY 23 2.441404e+00 # WZ
> DECAY 24 2.047600e+00 # WW
> DECAY 25 6.382339e-03 # WH
> ## Dependent parameters, given by model restrictions.
> ## Those values should be edited following the
> ## analytical expression. MG5 ignores those values
> ## but they are important for interfacing the output of MG5
> ## to external program such as Pythia.
> DECAY 1 0.000000 # d : 0.0
> DECAY 2 0.000000 # u : 0.0
> DECAY 3 0.000000 # s : 0.0
> DECAY 4 0.000000 # c : 0.0
> DECAY 5 0.000000 # b : 0.0
> DECAY 11 0.000000 # e- : 0.0
> DECAY 12 0.000000 # ve : 0.0
> DECAY 13 0.000000 # mu- : 0.0
> DECAY 14 0.000000 # vm : 0.0
> DECAY 15 0.000000 # ta- : 0.0
> DECAY 16 0.000000 # vt : 0.0
> DECAY 21 0.000000 # g : 0.0
> DECAY 22 0.000000 # a : 0.0
> </slha>
> <MGPythiaCard>
> !...Parton showering on or off
> MSTP(61)=1
> MSTP(71)=1
>
> !...Fragmentation/hadronization on or off
> MSTJ(1)=1
>
> !...Multiple interactions on or off
> MSTP(81)=20
>
> !...Don't stop execution after 10 errors
> MSTU(21)=1
>
> !...PDFset if MG set not supported by pythia-pgs package (set in lhapdf5 or higher)
> LHAID= 10041
>
>
> LHAPATH=/Users/anke/programs/MG5_aMC_v2_5_2/pythia-pgs/src/PDFsets
> </MGPythiaCard>
> <MGGenerationInfo>
> # Number of Events : 5000
> # Integrated weight (pb) : 5.66136295519
> # Matched Integrated weight (pb) : 2.812
> </MGGenerationInfo>
> </header>
> <init>
> 2212 2212 6.500000e+03 6.500000e+03 0 0 247000 247000 -3 2
> 2.798259e+00 1.339295e-02 1.132273e-03 1
> 2.863104e+00 1.328059e-02 1.132273e-03 2
> <generator name='MadGraph5_aMC@NLO' version='2.5.2'>please cite 1405.0301 </generator>
> </init>
> </LesHouchesEvents>
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Revision history for this message
Olivier Mattelaer (olivier-mattelaer) said :
#4

If you want to debug the pythia6 program, the problem is likely to be related to the use_syst function which prevent the veto algorithm to occur.

Cheers,

Olivier
> On 2 Mar 2017, at 20:31, Olivier Mattelaer <email address hidden> wrote:
>
> Dear Anke,
>
> So your cross-section before the matching veto is actually the same in both code:
> 5.62139961145 vs 5.66136295519
>
> So the difference is in the pythia6 module which is not supported anymore in 2.5.2.
> I would suggest to use the pythia8 module.
>
>
> Cheers,
>
> Olivier
>
>
>
>
>
>> On 2 Mar 2017, at 18:24, anke <email address hidden> wrote:
>>
>> Question #515385 on MadGraph5_aMC@NLO changed:
>> https://answers.launchpad.net/mg5amcnlo/+question/515385
>>
>> anke gave more information on the question:
>> <LesHouchesEvents version="3.0">
>> <header>
>> <!--
>> #*********************************************************************
>> # *
>> # MadGraph5_aMC@NLO *
>> # *
>> # Going Beyond *
>> # *
>> # http://madgraph.hep.uiuc.edu *
>> # http://madgraph.phys.ucl.ac.be *
>> # http://amcatnlo.cern.ch *
>> # *
>> # The MadGraph5_aMC@NLO team *
>> # *
>> #....................................................................*
>> # *
>> # This file contains all the information necessary to reproduce *
>> # the events generated: *
>> # *
>> # 1. software version *
>> # 2. proc_card : code generation info including model *
>> # 3. param_card : model primary parameters in the LH format *
>> # 4. run_card : running parameters (collider and cuts) *
>> # 5. pythia_card : present only if pythia has been run *
>> # 6. pgs_card : present only if pgs has been run *
>> # 7. delphes_cards : present only if delphes has been run *
>> # *
>> # *
>> #*********************************************************************
>> -->
>> <MGVersion>
>> #2.5.2
>> </MGVersion>
>> <MG5ProcCard>
>> #************************************************************
>> #* MadGraph5_aMC@NLO *
>> #* *
>> #* * * *
>> #* * * * * *
>> #* * * * * 5 * * * * *
>> #* * * * * *
>> #* * * *
>> #* *
>> #* *
>> #* VERSION 2.5.2 2016-12-10 *
>> #* *
>> #* The MadGraph5_aMC@NLO Development Team - Find us at *
>> #* https://server06.fynu.ucl.ac.be/projects/madgraph *
>> #* *
>> #************************************************************
>> #* *
>> #* Command File for MadGraph5_aMC@NLO *
>> #* *
>> #* run as ./bin/mg5_aMC filename *
>> #* *
>> #************************************************************
>> set group_subprocesses Auto
>> set ignore_six_quark_processes False
>> set loop_optimized_output True
>> set low_mem_multicore_nlo_generation False
>> set loop_color_flows False
>> set gauge unitary
>> set complex_mass_scheme False
>> set max_npoint_for_channel 0
>> import model sm
>> define p = g u c d s u~ c~ d~ s~
>> define j = g u c d s u~ c~ d~ s~
>> define l+ = e+ mu+
>> define l- = e- mu-
>> define vl = ve vm vt
>> define vl~ = ve~ vm~ vt~
>> generate p p > vm vm~ j j QCD=0
>> add process p p > vm vm~ j j j QCD=1
>> output Z_inv_5_2_2
>> </MG5ProcCard>
>> <MGProcCard>
>> #*********************************************************************
>> # MadGraph/MadEvent *
>> # http://madgraph.hep.uiuc.edu *
>> # *
>> # proc_card.dat *
>> #*********************************************************************
>> # *
>> # This Files is generated by MADGRAPH 5 *
>> # *
>> # WARNING: This Files is generated for MADEVENT (compatibility issue)*
>> # This files is NOT a valid MG4 proc_card.dat *
>> # Running this in MG4 will NEVER reproduce the result of MG5*
>> # *
>> #*********************************************************************
>> #*********************************************************************
>> # Process(es) requested : mg2 input *
>> #*********************************************************************
>> # Begin PROCESS # This is TAG. Do not modify this line
>> p p > vm vm~ j j #Process
>> # Be carefull the coupling are here in MG5 convention
>> QCD=0
>>
>> end_coup # End the couplings input
>>
>> done # this tells MG there are no more procs
>> # End PROCESS # This is TAG. Do not modify this line
>> #*********************************************************************
>> # Model information *
>> #*********************************************************************
>> # Begin MODEL # This is TAG. Do not modify this line
>> sm
>> # End MODEL # This is TAG. Do not modify this line
>> #*********************************************************************
>> # Start multiparticle definitions *
>> #*********************************************************************
>> # Begin MULTIPARTICLES # This is TAG. Do not modify this line
>>
>> # End MULTIPARTICLES # This is TAG. Do not modify this line
>> </MGProcCard>
>> <MGRunCard>
>> #*********************************************************************
>> # MadGraph5_aMC@NLO *
>> # *
>> # run_card.dat MadEvent *
>> # *
>> # This file is used to set the parameters of the run. *
>> # *
>> # Some notation/conventions: *
>> # *
>> # Lines starting with a '# ' are info or comments *
>> # *
>> # mind the format: value = variable ! comment *
>> #*********************************************************************
>> #
>> #*******************
>> # Running parameters
>> #*******************
>> #
>> #*********************************************************************
>> # Tag name for the run (one word) *
>> #*********************************************************************
>> tag_1 = run_tag ! name of the run
>> #*********************************************************************
>> # Number of events and rnd seed *
>> # Warning: Do not generate more than 1M events in a single run *
>> # If you want to run Pythia, avoid more than 50k events in a run. *
>> #*********************************************************************
>> 5000 = nevents ! Number of unweighted events requested
>> 30 = iseed ! rnd seed (0=assigned automatically=default))
>> #*********************************************************************
>> # Collider type and energy *
>> # lpp: 0=No PDF, 1=proton, -1=antiproton, 2=photon from proton, *
>> # 3=photon from electron *
>> #*********************************************************************
>> 1 = lpp1 ! beam 1 type
>> 1 = lpp2 ! beam 2 type
>> 6500.0 = ebeam1 ! beam 1 total energy in GeV
>> 6500.0 = ebeam2 ! beam 2 total energy in GeV
>> #*********************************************************************
>> # Beam polarization from -100 (left-handed) to 100 (right-handed) *
>> #*********************************************************************
>> 0.0 = polbeam1 ! beam polarization for beam 1
>> 0.0 = polbeam2 ! beam polarization for beam 2
>> #*********************************************************************
>> # PDF CHOICE: this automatically fixes also alpha_s and its evol. *
>> #*********************************************************************
>> nn23lo1 = pdlabel ! PDF set
>> 230000 = lhaid ! if pdlabel=lhapdf, this is the lhapdf number
>> #*********************************************************************
>> # Renormalization and factorization scales *
>> #*********************************************************************
>> False = fixed_ren_scale ! if .true. use fixed ren scale
>> False = fixed_fac_scale ! if .true. use fixed fac scale
>> 91.188 = scale ! fixed ren scale
>> 91.188 = dsqrt_q2fact1 ! fixed fact scale for pdf1
>> 91.188 = dsqrt_q2fact2 ! fixed fact scale for pdf2
>> -1 = dynamical_scale_choice ! Choose one of the preselected dynamical choices
>> 1.0 = scalefact ! scale factor for event-by-event scales
>> #*********************************************************************
>> # Type and output format
>> #*********************************************************************
>> False = gridpack !True = setting up the grid pack
>> -1.0 = time_of_flight ! threshold (in mm) below which the invariant livetime is not written (-1 means not written)
>> 3.0 = lhe_version ! Change the way clustering information pass to shower.
>> True = clusinfo ! include clustering tag in output
>> sum = event_norm ! average/sum. Normalization of the weight in the LHEF
>>
>> #*********************************************************************
>> # Matching parameter (MLM only)
>> #*********************************************************************
>> 1 = ickkw ! 0 no matching, 1 MLM
>> 1.0 = alpsfact ! scale factor for QCD emission vx
>> False = chcluster ! cluster only according to channel diag
>> 4 = asrwgtflavor ! highest quark flavor for a_s reweight
>> False = auto_ptj_mjj ! Automatic setting of ptj and mjj if xqcut >0
>> ! (turn off for VBF and single top processes)
>> 15.0 = xqcut ! minimum kt jet measure between partons
>> #*********************************************************************
>> #
>> #*********************************************************************
>> # handling of the helicities:
>> # 0: sum over all helicities
>> # 1: importance sampling over helicities
>> #*********************************************************************
>> 0 = nhel ! using helicities importance sampling or not.
>> #*********************************************************************
>> # Generation bias, check the wiki page below for more information: *
>> # 'cp3.irmp.ucl.ac.be/projects/madgraph/wiki/LOEventGenerationBias' *
>> #*********************************************************************
>> None = bias_module ! Bias type of bias, [None, ptj_bias, -custom_folder-]
>> {} = bias_parameters ! Specifies the parameters of the module.
>> #
>> #*******************************
>> # Parton level cuts definition *
>> #*******************************
>> #
>> #
>> #*********************************************************************
>> # BW cutoff (M+/-bwcutoff*Gamma) ! Define on/off-shell for "$" and decay
>> #*********************************************************************
>> 15.0 = bwcutoff ! (M+/-bwcutoff*Gamma)
>> #*********************************************************************
>> # Apply pt/E/eta/dr/mij/kt_durham cuts on decay products or not
>> # (note that etmiss/ptll/ptheavy/ht/sorted cuts always apply)
>> #*********************************************************************
>> False = cut_decays ! Cut decay products
>> #*********************************************************************
>> # Standard Cuts *
>> #*********************************************************************
>> # Minimum and maximum pt's (for max, -1 means no cut) *
>> #*********************************************************************
>> 10.0 = ptj ! minimum pt for the jets
>> 0.0 = ptb ! minimum pt for the b
>> 2.0 = pta ! minimum pt for the photons
>> 2.0 = ptl ! minimum pt for the charged leptons
>> 0.0 = misset ! minimum missing Et (sum of neutrino's momenta)
>> 0.0 = ptheavy ! minimum pt for one heavy final state
>> -1.0 = ptjmax ! maximum pt for the jets
>> -1.0 = ptbmax ! maximum pt for the b
>> -1.0 = ptamax ! maximum pt for the photons
>> -1.0 = ptlmax ! maximum pt for the charged leptons
>> -1.0 = missetmax ! maximum missing Et (sum of neutrino's momenta)
>> #*********************************************************************
>> # Minimum and maximum E's (in the center of mass frame) *
>> #*********************************************************************
>> 0.0 = ej ! minimum E for the jets
>> 0.0 = eb ! minimum E for the b
>> 0.0 = ea ! minimum E for the photons
>> 0.0 = el ! minimum E for the charged leptons
>> -1.0 = ejmax ! maximum E for the jets
>> -1.0 = ebmax ! maximum E for the b
>> -1.0 = eamax ! maximum E for the photons
>> -1.0 = elmax ! maximum E for the charged leptons
>> #*********************************************************************
>> # Maximum and minimum absolute rapidity (for max, -1 means no cut) *
>> #*********************************************************************
>> -1.0 = etaj ! max rap for the jets
>> -1.0 = etab ! max rap for the b
>> -1.0 = etaa ! max rap for the photons
>> -1.0 = etal ! max rap for the charged leptons
>> 0.0 = etajmin ! min rap for the jets
>> 0.0 = etabmin ! min rap for the b
>> 0.0 = etaamin ! min rap for the photons
>> 0.0 = etalmin ! main rap for the charged leptons
>> #*********************************************************************
>> # Minimum and maximum DeltaR distance *
>> #*********************************************************************
>> 0.0 = drjj ! min distance between jets
>> 0.0 = drbb ! min distance between b's
>> 0.0 = drll ! min distance between leptons
>> 0.0 = draa ! min distance between gammas
>> 0.0 = drbj ! min distance between b and jet
>> 0.0 = draj ! min distance between gamma and jet
>> 0.0 = drjl ! min distance between jet and lepton
>> 0.0 = drab ! min distance between gamma and b
>> 0.0 = drbl ! min distance between b and lepton
>> 0.0 = dral ! min distance between gamma and lepton
>> -1.0 = drjjmax ! max distance between jets
>> -1.0 = drbbmax ! max distance between b's
>> -1.0 = drllmax ! max distance between leptons
>> -1.0 = draamax ! max distance between gammas
>> -1.0 = drbjmax ! max distance between b and jet
>> -1.0 = drajmax ! max distance between gamma and jet
>> -1.0 = drjlmax ! max distance between jet and lepton
>> -1.0 = drabmax ! max distance between gamma and b
>> -1.0 = drblmax ! max distance between b and lepton
>> -1.0 = dralmax ! maxdistance between gamma and lepton
>> #*********************************************************************
>> # Minimum and maximum invariant mass for pairs *
>> # WARNING: for four lepton final state mmll cut require to have *
>> # different lepton masses for each flavor! *
>> #*********************************************************************
>> 0.0 = mmjj ! min invariant mass of a jet pair
>> 0.0 = mmbb ! min invariant mass of a b pair
>> 0.0 = mmaa ! min invariant mass of gamma gamma pair
>> 0.0 = mmll ! min invariant mass of l+l- (same flavour) lepton pair
>> -1.0 = mmjjmax ! max invariant mass of a jet pair
>> -1.0 = mmbbmax ! max invariant mass of a b pair
>> -1.0 = mmaamax ! max invariant mass of gamma gamma pair
>> -1.0 = mmllmax ! max invariant mass of l+l- (same flavour) lepton pair
>> #*********************************************************************
>> # Minimum and maximum invariant mass for all letpons *
>> #*********************************************************************
>> 0.0 = mmnl ! min invariant mass for all letpons (l+- and vl)
>> -1.0 = mmnlmax ! max invariant mass for all letpons (l+- and vl)
>> #*********************************************************************
>> # Minimum and maximum pt for 4-momenta sum of leptons *
>> #*********************************************************************
>> 0.0 = ptllmin ! Minimum pt for 4-momenta sum of leptons(l and vl)
>> -1.0 = ptllmax ! Maximum pt for 4-momenta sum of leptons(l and vl)
>> #*********************************************************************
>> # Inclusive cuts *
>> #*********************************************************************
>> 0.0 = xptj ! minimum pt for at least one jet
>> 0.0 = xptb ! minimum pt for at least one b
>> 0.0 = xpta ! minimum pt for at least one photon
>> 0.0 = xptl ! minimum pt for at least one charged lepton
>> #*********************************************************************
>> # Control the pt's of the jets sorted by pt *
>> #*********************************************************************
>> 0.0 = ptj1min ! minimum pt for the leading jet in pt
>> 0.0 = ptj2min ! minimum pt for the second jet in pt
>> 0.0 = ptj3min ! minimum pt for the third jet in pt
>> 0.0 = ptj4min ! minimum pt for the fourth jet in pt
>> -1.0 = ptj1max ! maximum pt for the leading jet in pt
>> -1.0 = ptj2max ! maximum pt for the second jet in pt
>> -1.0 = ptj3max ! maximum pt for the third jet in pt
>> -1.0 = ptj4max ! maximum pt for the fourth jet in pt
>> 0 = cutuse ! reject event if fails any (0) / all (1) jet pt cuts
>> #*********************************************************************
>> # Control the pt's of leptons sorted by pt *
>> #*********************************************************************
>> 0.0 = ptl1min ! minimum pt for the leading lepton in pt
>> 0.0 = ptl2min ! minimum pt for the second lepton in pt
>> 0.0 = ptl3min ! minimum pt for the third lepton in pt
>> 0.0 = ptl4min ! minimum pt for the fourth lepton in pt
>> -1.0 = ptl1max ! maximum pt for the leading lepton in pt
>> -1.0 = ptl2max ! maximum pt for the second lepton in pt
>> -1.0 = ptl3max ! maximum pt for the third lepton in pt
>> -1.0 = ptl4max ! maximum pt for the fourth lepton in pt
>> #*********************************************************************
>> # Control the Ht(k)=Sum of k leading jets *
>> #*********************************************************************
>> 0.0 = htjmin ! minimum jet HT=Sum(jet pt)
>> -1.0 = htjmax ! maximum jet HT=Sum(jet pt)
>> 0.0 = ihtmin !inclusive Ht for all partons (including b)
>> -1.0 = ihtmax !inclusive Ht for all partons (including b)
>> 0.0 = ht2min ! minimum Ht for the two leading jets
>> 0.0 = ht3min ! minimum Ht for the three leading jets
>> 0.0 = ht4min ! minimum Ht for the four leading jets
>> -1.0 = ht2max ! maximum Ht for the two leading jets
>> -1.0 = ht3max ! maximum Ht for the three leading jets
>> -1.0 = ht4max ! maximum Ht for the four leading jets
>> #***********************************************************************
>> # Photon-isolation cuts, according to hep-ph/9801442 *
>> # When ptgmin=0, all the other parameters are ignored *
>> # When ptgmin>0, pta and draj are not going to be used *
>> #***********************************************************************
>> 0.0 = ptgmin ! Min photon transverse momentum
>> 0.4 = R0gamma ! Radius of isolation code
>> 1.0 = xn ! n parameter of eq.(3.4) in hep-ph/9801442
>> 1.0 = epsgamma ! epsilon_gamma parameter of eq.(3.4) in hep-ph/9801442
>> True = isoEM ! isolate photons from EM energy (photons and leptons)
>> #*********************************************************************
>> # WBF cuts *
>> #*********************************************************************
>> 0.0 = xetamin ! minimum rapidity for two jets in the WBF case
>> 0.0 = deltaeta ! minimum rapidity for two jets in the WBF case
>> #***********************************************************************
>> # Turn on either the ktdurham or ptlund cut to activate *
>> # CKKW(L) merging with Pythia8 [arXiv:1410.3012, arXiv:1109.4829] *
>> #***********************************************************************
>> -1.0 = ktdurham
>> 0.4 = dparameter
>> -1.0 = ptlund
>> 1, 2, 3, 4, 5, 6, 21 = pdgs_for_merging_cut ! PDGs for two cuts above
>> #*********************************************************************
>> # maximal pdg code for quark to be considered as a light jet *
>> # (otherwise b cuts are applied) *
>> #*********************************************************************
>> 4 = maxjetflavor ! Maximum jet pdg code
>> #*********************************************************************
>> #
>> #*********************************************************************
>> # Store info for systematics studies *
>> # WARNING: Do not use for interference type of computation *
>> #*********************************************************************
>> False = use_syst ! Enable systematics studies
>> #
>> #**************************************
>> # Parameter of the systematics study
>> # will be used by SysCalc (if installed)
>> #**************************************
>> #
>> 0.5 1 2 = sys_scalefact # factorization/renormalization scale factor
>> 0.5 1 2 = sys_alpsfact # \alpha_s emission scale factors
>> 30 50 = sys_matchscale # variation of merging scale
>> # PDF sets and number of members (0 or none for all members).
>> NNPDF23_lo_as_0130_qed = sys_pdf # list of pdf sets
>> # MSTW2008nlo68cl.LHgrid 1 = sys_pdf
>> #
>> </MGRunCard>
>> <slha>
>> ######################################################################
>> ## PARAM_CARD AUTOMATICALY GENERATED BY MG5 FOLLOWING UFO MODEL ####
>> ######################################################################
>> ## ##
>> ## Width set on Auto will be computed following the information ##
>> ## present in the decay.py files of the model. ##
>> ## See arXiv:1402.1178 for more details. ##
>> ## ##
>> ######################################################################
>>
>> ###################################
>> ## INFORMATION FOR MASS
>> ###################################
>> Block mass
>> 5 4.700000e+00 # MB
>> 6 1.730000e+02 # MT
>> 15 1.777000e+00 # MTA
>> 23 9.118800e+01 # MZ
>> 25 1.250000e+02 # MH
>> ## Dependent parameters, given by model restrictions.
>> ## Those values should be edited following the
>> ## analytical expression. MG5 ignores those values
>> ## but they are important for interfacing the output of MG5
>> ## to external program such as Pythia.
>> 1 0.000000 # d : 0.0
>> 2 0.000000 # u : 0.0
>> 3 0.000000 # s : 0.0
>> 4 0.000000 # c : 0.0
>> 11 0.000000 # e- : 0.0
>> 12 0.000000 # ve : 0.0
>> 13 0.000000 # mu- : 0.0
>> 14 0.000000 # vm : 0.0
>> 16 0.000000 # vt : 0.0
>> 21 0.000000 # g : 0.0
>> 22 0.000000 # a : 0.0
>> 24 80.419002 # w+ : cmath.sqrt(MZ__exp__2/2. + cmath.sqrt(MZ__exp__4/4. - (aEW*cmath.pi*MZ__exp__2)/(Gf*sqrt__2)))
>>
>> ###################################
>> ## INFORMATION FOR SMINPUTS
>> ###################################
>> Block sminputs
>> 1 1.325070e+02 # aEWM1
>> 2 1.166390e-05 # Gf
>> 3 1.180000e-01 # aS
>>
>> ###################################
>> ## INFORMATION FOR YUKAWA
>> ###################################
>> Block yukawa
>> 5 4.700000e+00 # ymb
>> 6 1.730000e+02 # ymt
>> 15 1.777000e+00 # ymtau
>>
>> ###################################
>> ## INFORMATION FOR DECAY
>> ###################################
>> DECAY 6 1.491500e+00 # WT
>> DECAY 23 2.441404e+00 # WZ
>> DECAY 24 2.047600e+00 # WW
>> DECAY 25 6.382339e-03 # WH
>> ## Dependent parameters, given by model restrictions.
>> ## Those values should be edited following the
>> ## analytical expression. MG5 ignores those values
>> ## but they are important for interfacing the output of MG5
>> ## to external program such as Pythia.
>> DECAY 1 0.000000 # d : 0.0
>> DECAY 2 0.000000 # u : 0.0
>> DECAY 3 0.000000 # s : 0.0
>> DECAY 4 0.000000 # c : 0.0
>> DECAY 5 0.000000 # b : 0.0
>> DECAY 11 0.000000 # e- : 0.0
>> DECAY 12 0.000000 # ve : 0.0
>> DECAY 13 0.000000 # mu- : 0.0
>> DECAY 14 0.000000 # vm : 0.0
>> DECAY 15 0.000000 # ta- : 0.0
>> DECAY 16 0.000000 # vt : 0.0
>> DECAY 21 0.000000 # g : 0.0
>> DECAY 22 0.000000 # a : 0.0
>> </slha>
>> <MGPythiaCard>
>> !...Parton showering on or off
>> MSTP(61)=1
>> MSTP(71)=1
>>
>> !...Fragmentation/hadronization on or off
>> MSTJ(1)=1
>>
>> !...Multiple interactions on or off
>> MSTP(81)=20
>>
>> !...Don't stop execution after 10 errors
>> MSTU(21)=1
>>
>> !...PDFset if MG set not supported by pythia-pgs package (set in lhapdf5 or higher)
>> LHAID= 10041
>>
>>
>> LHAPATH=/Users/anke/programs/MG5_aMC_v2_5_2/pythia-pgs/src/PDFsets
>> </MGPythiaCard>
>> <MGGenerationInfo>
>> # Number of Events : 5000
>> # Integrated weight (pb) : 5.66136295519
>> # Matched Integrated weight (pb) : 2.812
>> </MGGenerationInfo>
>> </header>
>> <init>
>> 2212 2212 6.500000e+03 6.500000e+03 0 0 247000 247000 -3 2
>> 2.798259e+00 1.339295e-02 1.132273e-03 1
>> 2.863104e+00 1.328059e-02 1.132273e-03 2
>> <generator name='MadGraph5_aMC@NLO' version='2.5.2'>please cite 1405.0301 </generator>
>> </init>
>> </LesHouchesEvents>
>>
>> --
>> You received this question notification because you are an answer
>> contact for MadGraph5_aMC@NLO.
>

Revision history for this message
anke (anke.b) said :
#5

Dear Olivier,

Thank you very much for your prompt reply.

I had already realized that the use_syst function changes the result a lot, so I set use_syst to False in both cases.

I understand of course that you cannot answer questions on version 2.5.2 plus pythia6 since it is not supported anymore (and given the amount of questions that you must get every day). Many thanks for trying to help me anyway.

Thanks again and cheers,
Anke