can't use reweighting in lxplus with Athena in some cases

Asked by Yue Xu on 2019-12-16

Dear MadGraph expert,

I'm using MadGraph reweighting technique with HC model.
The process A is:
generate p p > z x0, z > j j, x0 > l- l+ j j
add process p p > z x0, z > l- l+, x0 > j j j j
add process p p > w+ x0, w+ > j j, x0 > l- l+ j j
add process p p > w- x0, w- > j j, x0 > l- l+ j j

with the reweight card:
launch --rwgt_name=fw1500fww0
 set FRBLOCK 16 -0.787215
 set FRBLOCK 18 -0.787215
 set FRBLOCK 21 -0.393608
 set FRBLOCK 22 -0.393608
 set DECAY 5000000 auto

I run the MadGraph job option with Athena. Aftera long time of running the reweighting, I got the error "1;31mCommand "generate_events -f --multicore run_01 --nb_core=8" interrupted with error:"
The log file is in: https://raw.githubusercontent.com/xuyue1231/MG5-heavy-Higgs/master/log.generate.failed

But if I just geenrate events with process B :
generate p p > z x0, z > l- l+, x0 > j j j j
add process p p > w+ x0, w+ > j j, x0 > l- l+ j j
add process p p > w- x0, w- > j j, x0 > l- l+ j j

The reweighting runs successfully. The log file is in : https://raw.githubusercontent.com/xuyue1231/MG5-heavy-Higgs/master/log.generate.successful

Is it because that process A takes a long time to do the reweighting such that the reweighting break down ?

Best,
Yue

Question information

Language:
English Edit question
Status:
Solved
For:
MadGraph5_aMC@NLO Edit question
Assignee:
No assignee Edit question
Solved by:
Yue Xu
Solved:
2019-12-24
Last query:
2019-12-24
Last reply:
2019-12-23

Hi,

I do not know,

18:27:40 Command "generate_events -f --multicore run_01 --nb_core=8" interrupted with error:
18:27:40 Exception :
18:27:40 Please report this bug on https://bugs.launchpad.net/mg5amcnlo
18:27:40 More information is found in '/tmp/ding/reweight/PROC_HC_UFO_0/run_01_tag_1_debug.log'.

According to this, you will get the MG5 debug file at the above path. Without I have no way to know the reason of this.

Cheers,

Olivier

> On 16 Dec 2019, at 10:14, Yue Xu <email address hidden> wrote:
>
> New question #687175 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/687175
>
> Dear MadGraph expert,
>
> I'm using MadGraph reweighting technique with HC model.
> The process A is:
> generate p p > z x0, z > j j, x0 > l- l+ j j
> add process p p > z x0, z > l- l+, x0 > j j j j
> add process p p > w+ x0, w+ > j j, x0 > l- l+ j j
> add process p p > w- x0, w- > j j, x0 > l- l+ j j
>
> with the reweight card:
> launch --rwgt_name=fw1500fww0
> set FRBLOCK 16 -0.787215
> set FRBLOCK 18 -0.787215
> set FRBLOCK 21 -0.393608
> set FRBLOCK 22 -0.393608
> set DECAY 5000000 auto
>
> I run the MadGraph job option with Athena. Aftera long time of running the reweighting, I got the error "1;31mCommand "generate_events -f --multicore run_01 --nb_core=8" interrupted with error:"
> The log file is in: https://raw.githubusercontent.com/xuyue1231/MG5-heavy-Higgs/master/log.generate.failed
>
> But if I just geenrate events with process B :
> generate p p > z x0, z > l- l+, x0 > j j j j
> add process p p > w+ x0, w+ > j j, x0 > l- l+ j j
> add process p p > w- x0, w- > j j, x0 > l- l+ j j
>
> The reweighting runs successfully. The log file is in : https://raw.githubusercontent.com/xuyue1231/MG5-heavy-Higgs/master/log.generate.successful
>
> Is it because that process A takes a long time to do the reweighting such that the reweighting break down ?
>
> Best,
> Yue
>
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Yue Xu (yuexu) said : #2

Hi Olivier,

I tested this process with standalone MadGraph version 2.6.6. It said " Exception : two different matrix-element have the same initial/final state. Leading to an ambiguity. If your events are ALWAYS written in the correct-order (look at the numbering in the Feynman Diagram). Then you can add inside your reweight_card the line 'change keep_ordering True’. "
When I add "change keep_ordering True" in the reweight_card, the reweighting can run successfully.
But it seems the command "change keep_ordering True" only available in MadGraph version nenwer than 2.6.5.

I don't know what is " two different matrix-element have the same initial/final state" mean.
Could you please explain it ?

Thanks,
Yue

HI,

The reason is simple you have two process with the exact same final state:
generate p p > z x0, z > j j, x0 > l- l+ j j
add process p p > z x0, z > l- l+, x0 > j j j j

Both have opposite sign charged lepton plus 4 jets.
Therefore when I read the lhef file and see an event with that final state, I do not know which matrix-element was used for the production (and which one to use for the new hyppothesis).

The "keep ordering" option assumes that your lhef particles are in the same order as the one used by MG for the production (which is not 100% guaranteed). You can use that option but please check first that it is consistent.

If you need to use older version than 2.6.5, the only option is to split your generation in two different runs (to avoid the ambiguity)

Cheers,

Olivier

> On 23 Dec 2019, at 06:53, Yue Xu <email address hidden> wrote:
>
> Question #687175 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/687175
>
> Status: Answered => Open
>
> Yue Xu is still having a problem:
> Hi Olivier,
>
> I tested this process with standalone MadGraph version 2.6.6. It said " Exception : two different matrix-element have the same initial/final state. Leading to an ambiguity. If your events are ALWAYS written in the correct-order (look at the numbering in the Feynman Diagram). Then you can add inside your reweight_card the line 'change keep_ordering True’. "
> When I add "change keep_ordering True" in the reweight_card, the reweighting can run successfully.
> But it seems the command "change keep_ordering True" only available in MadGraph version nenwer than 2.6.5.
>
> I don't know what is " two different matrix-element have the same initial/final state" mean.
> Could you please explain it ?
>
> Thanks,
> Yue
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Yue Xu (yuexu) said : #4

Hi Olivier,

Thanks for the explanation.

If I only have one process:
generate p p > z x0, z > j j, x0 > l- l+ j j

There are no two processes having the same final state. But I still got the error "Exception : two different matrix-element have the same initial/final state. Leading to an ambiguity. If your events are ALWAYS written in the correct-order (look at the numbering in the Feynman Diagram). Then you can add inside your reweight_card the line 'change keep_ordering True’.".

How does this happen?

Best,
Yue

The log file is:
launch
Traceback (most recent call last):
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/extended_cmd.py", line 1514, in onecmd
    return self.onecmd_orig(line, **opt)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/extended_cmd.py", line 1463, in onecmd_orig
    return func(arg, **opt)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/madevent_interface.py", line 2670, in do_launch
    self.do_generate_events(line, *args, **opt)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/madevent_interface.py", line 2469, in do_generate_events
    self.run_generate_events(switch_mode, args)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/common_run_interface.py", line 6929, in new_fct
    original_fct(obj, *args, **opts)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/madevent_interface.py", line 2565, in run_generate_events
    self.exec_cmd('reweight -from_cards', postcmd=False)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/extended_cmd.py", line 1543, in exec_cmd
    stop = Cmd.onecmd_orig(current_interface, line, **opt)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/extended_cmd.py", line 1463, in onecmd_orig
    return func(arg, **opt)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/common_run_interface.py", line 2142, in do_reweight
    reweight_cmd.import_command_file(path)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/interface/extended_cmd.py", line 1660, in import_command_file
    self.exec_cmd(line, precmd=True)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/interface/extended_cmd.py", line 1543, in exec_cmd
    stop = Cmd.onecmd_orig(current_interface, line, **opt)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/interface/extended_cmd.py", line 1463, in onecmd_orig
    return func(arg, **opt)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/various/misc.py", line 100, in f_with_no_logger
    out = f(self, *args, **opt)
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/interface/reweight_interface.py", line 491, in do_launch
    self.load_module()
  File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/interface/reweight_interface.py", line 1811, in load_module
    raise Exception, "two different matrix-element have the same initial/final state. Leading to an ambiguity. If your events are ALWAYS written in the correct-order (look at the numbering in the Feynman Diagram). Then you can add inside your reweight_card the line 'change keep_ordering True'."
Exception: two different matrix-element have the same initial/final state. Leading to an ambiguity. If your events are ALWAYS written in the correct-order (look at the numbering in the Feynman Diagram). Then you can add inside your reweight_card the line 'change keep_ordering True'.
                              Run Options
                              -----------
               stdout_level : None

                         MadEvent Options
                         ----------------
     automatic_html_opening : False (user set)
        notification_center : True
          cluster_temp_path : None
             cluster_memory : None
               cluster_size : 100
              cluster_queue : None
                    nb_core : 56 (user set)
               cluster_time : None
                   run_mode : 2

                      Configuration Options
                      ---------------------
                text_editor : None
         cluster_local_path : None
      cluster_status_update : (600, 30)
               pythia8_path : /home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/HEPTools/pythia8 (user set)
                  hwpp_path : None (user set)
            pythia-pgs_path : None (user set)
                    td_path : None (user set)
               delphes_path : None (user set)
                thepeg_path : None (user set)
               cluster_type : condor
          madanalysis5_path : None (user set)
           cluster_nb_retry : 1
                 eps_viewer : None
                web_browser : None
               syscalc_path : None (user set)
           madanalysis_path : None (user set)
                     lhapdf : /home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/HEPTools/lhapdf6/bin/lhapdf-config (user set)
              f2py_compiler : None
                 hepmc_path : None (user set)
         cluster_retry_wait : 300
           fortran_compiler : None
                auto_update : 7 (user set)
        exrootanalysis_path : None (user set)
                    timeout : 60
               cpp_compiler : None
#************************************************************
#* MadGraph5_aMC@NLO *
#* *
#* * * *
#* * * * * *
#* * * * * 5 * * * * *
#* * * * * *
#* * * *
#* *
#* *
#* VERSION 2.6.6 2018-06-28 *
#* *
#* 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 default_unset_couplings 99
set group_subprocesses Auto
set ignore_six_quark_processes False
set loop_optimized_output True
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~
import model /home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v\
2_6_6/models/HC_UFO
define p = g u c d s b u~ c~ d~ s~ b~
define j = g u c d s b u~ c~ d~ s~ b~
define l+ = e+ mu+ ta+
define l- = e- mu- ta-
generate p p > z x0, z > j j, x0 > l- l+ j j
output ./TEMP/HC_rw_p1
######################################################################
## PARAM_CARD AUTOMATICALY GENERATED BY MG5 ####
######################################################################
###################################
## INFORMATION FOR CKMBLOCK
###################################
BLOCK CKMBLOCK #
      1 2.277360e-01 # cabi
###################################
## INFORMATION FOR FRBLOCK
###################################
BLOCK FRBLOCK #
      1 5.000000e+03 # lambda
      2 1.000000e+00 # ca
      3 5.000000e-02 # ksm
      4 0.000000e+00 # khtt
      5 0.000000e+00 # katt
      6 0.000000e+00 # khbb
      7 0.000000e+00 # kabb
      8 0.000000e+00 # khll
      9 0.000000e+00 # kall
      10 0.000000e+00 # khaa
      11 0.000000e+00 # kaaa
      12 0.000000e+00 # khza
      13 0.000000e+00 # kaza
      14 0.000000e+00 # khgg
      15 0.000000e+00 # kagg
      16 -5.248100e-01 # khzz
      17 0.000000e+00 # kazz
      18 -5.248100e-01 # khww
      19 0.000000e+00 # kaww
      20 0.000000e+00 # khda
      21 -2.624050e-01 # khdz
      22 -2.624050e-01 # khdwr
      23 0.000000e+00 # khdwi
      24 1.000000e+00 # khhgg
      25 1.000000e+00 # kaagg
      26 1.000000e+00 # kqa
      27 1.000000e+00 # kqb
      28 1.000000e+00 # kla
      29 1.000000e+00 # klb
      30 1.000000e+00 # kw1
      31 1.000000e+00 # kw2
      32 0.000000e+00 # kw3
      33 0.000000e+00 # kw4
      34 0.000000e+00 # kw5
      35 0.000000e+00 # kz1
      36 1.000000e+00 # kz3
      37 0.000000e+00 # kz5
      38 1.000000e+00 # kq
      39 1.000000e+00 # kq3
      40 1.000000e+00 # kl
      41 1.000000e+00 # kg
      42 1.000000e+00 # ka
      43 1.000000e+00 # kz
      44 1.000000e+00 # kw
      45 0.000000e+00 # kza
###################################
## INFORMATION FOR MASS
###################################
BLOCK MASS #
      5 4.700000e+00 # mb
      6 1.720000e+02 # mt
      15 1.777000e+00 # mta
      23 9.118760e+01 # mz
      5000000 6.000000e+02 # mx0
      5000001 1.250000e+02 # mx1
      5000002 1.250000e+02 # mx2
      1 0.000000e+00 # d : 0.0
      2 0.000000e+00 # u : 0.0
      3 0.000000e+00 # s : 0.0
      4 0.000000e+00 # c : 0.0
      11 0.000000e+00 # e- : 0.0
      12 0.000000e+00 # ve : 0.0
      13 0.000000e+00 # mu- : 0.0
      14 0.000000e+00 # vm : 0.0
      16 0.000000e+00 # vt : 0.0
      21 0.000000e+00 # g : 0.0
      22 0.000000e+00 # a : 0.0
      24 7.982436e+01 # 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 1.279000e+02 # aewm1
      2 1.166370e-05 # gf
      3 1.184000e-01 # as
###################################
## INFORMATION FOR YUKAWA
###################################
BLOCK YUKAWA #
      5 4.700000e+00 # ymb
      6 1.720000e+02 # ymt
      15 1.777000e+00 # ymtau
###################################
## INFORMATION FOR DECAY
###################################
BLOCK QNUMBERS 5000000 # x0
      1 0 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 0 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 5000001
###################################
BLOCK QNUMBERS 5000001 # x1
      1 0 # 3 times electric charge
      2 3 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 0 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 5000002
###################################
BLOCK QNUMBERS 5000002 # x2
      1 0 # 3 times electric charge
      2 5 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 0 # particle/antiparticle distinction (0=own anti)
#
#*************************
# Decay widths *
#*************************
#
# PDG Width
DECAY 1 0.000000e+00
#
# PDG Width
DECAY 2 0.000000e+00
#
# PDG Width
DECAY 3 0.000000e+00
#
# PDG Width
DECAY 4 0.000000e+00
#
# PDG Width
DECAY 5 0.000000e+00
#
# PDG Width
DECAY 6 1.508336e+00
#
# PDG Width
DECAY 11 0.000000e+00
#
# PDG Width
DECAY 12 0.000000e+00
#
# PDG Width
DECAY 13 0.000000e+00
#
# PDG Width
DECAY 14 0.000000e+00
#
# PDG Width
DECAY 15 0.000000e+00
#
# PDG Width
DECAY 16 0.000000e+00
#
# PDG Width
DECAY 21 0.000000e+00
#
# PDG Width
DECAY 22 0.000000e+00
#
# PDG Width
DECAY 23 2.495200e+00
#
# PDG Width
DECAY 24 2.085000e+00
#
# PDG Width
DECAY 5000000 1.505900e-01
# BR NDA ID1 ID2 ...
   6.784647e-01 2 -24 24 # 0.102169999173
   3.215353e-01 2 23 23 # 0.048420000827
#
# PDG Width
DECAY 5000001 4.070000e-03
#
# PDG Width
DECAY 5000002 4.070000e-03
#*********************************************************************
# 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 *
# *
# To display more options, you can type the command: *
# update full_run_card *
#*********************************************************************
#
#*******************
# 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 *
#*********************************************************************
  10000 = nevents ! Number of unweighted events requested
  0 = 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
# To see polarised beam options: type "update beam_pol"
#*********************************************************************
# 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
# To see heavy ion options: type "update ion_pdf"
#*********************************************************************
# 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
 3 = 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
  average = event_norm ! average/sum. Normalization of the weight in the LHEF

#*********************************************************************
# Matching parameter (MLM only)
#*********************************************************************
 0 = ickkw ! 0 no matching, 1 MLM
 1.0 = alpsfact ! scale factor for QCD emission vx
 False = chcluster ! cluster only according to channel diag
 5 = 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)
 0.0 = 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) *
#*********************************************************************
 20.0 = ptj ! minimum pt for the jets
 0.0 = ptb ! minimum pt for the b
 10.0 = pta ! minimum pt for the photons
 10.0 = ptl ! minimum pt for the charged leptons
 0.0 = misset ! minimum missing Et (sum of neutrino's momenta)
 -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)
 {} = pt_min_pdg ! pt cut for other particles (use pdg code). Applied on particle and anti-particle
 {} = pt_max_pdg ! pt cut for other particles (syntax e.g. {6: 100, 25: 50})
#
# For display option for energy cut in the partonic center of mass frame type 'update ecut'
#
#*********************************************************************
# Maximum and minimum absolute rapidity (for max, -1 means no cut) *
#*********************************************************************
  5.0 = etaj ! max rap for the jets
  -1.0 = etab ! max rap for the b
 2.5 = etaa ! max rap for the photons
 2.5 = 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
 {} = eta_min_pdg ! rap cut for other particles (use pdg code). Applied on particle and anti-particle
 {} = eta_max_pdg ! rap cut for other particles (syntax e.g. {6: 2.5, 23: 5})
#*********************************************************************
# Minimum and maximum DeltaR distance *
#*********************************************************************
 0.4 = drjj ! min distance between jets
 0.0 = drbb ! min distance between b's
 0.4 = drll ! min distance between leptons
 0.4 = draa ! min distance between gammas
 0.0 = drbj ! min distance between b and jet
 0.4 = draj ! min distance between gamma and jet
 0.4 = 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
 0.4 = 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
 {} = mxx_min_pdg ! min invariant mass of a pair of particles X/X~ (e.g. {6:250})
 {'default': False} = mxx_only_part_antipart ! if True the invariant mass is applied only
                       ! to pairs of particle/antiparticle and not to pairs of the same pdg codes.
#*********************************************************************
# 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 = ptheavy ! minimum pt for at least one heavy final state
 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) *
#*********************************************************************
 5 = maxjetflavor ! Maximum jet pdg code
#*********************************************************************
#
#*********************************************************************
# Store info for systematics studies *
# WARNING: Do not use for interference type of computation *
#*********************************************************************
   True = use_syst ! Enable systematics studies
#
systematics = systematics_program ! none, systematics [python], SysCalc [depreceted, C++]
['--mur=0.5,1,2', '--muf=0.5,1,2', '--pdf=errorset'] = systematics_arguments ! see: https://cp3.irmp.ucl.ac.be/projects/madgraph/wiki/Systematics#Systematicspythonmodule
# Syscalc is deprecated but to see the associate options type'update syscalc'

Hi,

You are using multi-particles (p and j)
so your syntax is actually not one but many processes:
 p p > z x0, z > u u~, x0 > l- l+ d d~
 p p > z x0, z > d d~, x0 > l- l+ u u~
Those two have actually the same final state but they do not have the same matrix-element.
So indeed in this case you have an ambiguity.

This is the case for which the keep_ordering option was designed actually.

Cheers,

Olivier

> On 23 Dec 2019, at 13:52, Yue Xu <email address hidden> wrote:
>
> Question #687175 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/687175
>
> Status: Answered => Open
>
> Yue Xu is still having a problem:
> Hi Olivier,
>
> Thanks for the explanation.
>
> If I only have one process:
> generate p p > z x0, z > j j, x0 > l- l+ j j
>
> There are no two processes having the same final state. But I still got
> the error "Exception : two different matrix-element have the same
> initial/final state. Leading to an ambiguity. If your events are ALWAYS
> written in the correct-order (look at the numbering in the Feynman
> Diagram). Then you can add inside your reweight_card the line 'change
> keep_ordering True’.".
>
> How does this happen?
>
> Best,
> Yue
>
> The log file is:
> launch
> Traceback (most recent call last):
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/extended_cmd.py", line 1514, in onecmd
> return self.onecmd_orig(line, **opt)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/extended_cmd.py", line 1463, in onecmd_orig
> return func(arg, **opt)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/madevent_interface.py", line 2670, in do_launch
> self.do_generate_events(line, *args, **opt)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/madevent_interface.py", line 2469, in do_generate_events
> self.run_generate_events(switch_mode, args)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/common_run_interface.py", line 6929, in new_fct
> original_fct(obj, *args, **opts)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/madevent_interface.py", line 2565, in run_generate_events
> self.exec_cmd('reweight -from_cards', postcmd=False)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/extended_cmd.py", line 1543, in exec_cmd
> stop = Cmd.onecmd_orig(current_interface, line, **opt)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/extended_cmd.py", line 1463, in onecmd_orig
> return func(arg, **opt)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/TEMP/HC_rw_p1/bin/internal/common_run_interface.py", line 2142, in do_reweight
> reweight_cmd.import_command_file(path)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/interface/extended_cmd.py", line 1660, in import_command_file
> self.exec_cmd(line, precmd=True)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/interface/extended_cmd.py", line 1543, in exec_cmd
> stop = Cmd.onecmd_orig(current_interface, line, **opt)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/interface/extended_cmd.py", line 1463, in onecmd_orig
> return func(arg, **opt)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/various/misc.py", line 100, in f_with_no_logger
> out = f(self, *args, **opt)
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/interface/reweight_interface.py", line 491, in do_launch
> self.load_module()
> File "/home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/madgraph/interface/reweight_interface.py", line 1811, in load_module
> raise Exception, "two different matrix-element have the same initial/final state. Leading to an ambiguity. If your events are ALWAYS written in the correct-order (look at the numbering in the Feynman Diagram). Then you can add inside your reweight_card the line 'change keep_ordering True'."
> Exception: two different matrix-element have the same initial/final state. Leading to an ambiguity. If your events are ALWAYS written in the correct-order (look at the numbering in the Feynman Diagram). Then you can add inside your reweight_card the line 'change keep_ordering True'.
> Run Options
> -----------
> stdout_level : None
>
> MadEvent Options
> ----------------
> automatic_html_opening : False (user set)
> notification_center : True
> cluster_temp_path : None
> cluster_memory : None
> cluster_size : 100
> cluster_queue : None
> nb_core : 56 (user set)
> cluster_time : None
> run_mode : 2
>
> Configuration Options
> ---------------------
> text_editor : None
> cluster_local_path : None
> cluster_status_update : (600, 30)
> pythia8_path : /home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/HEPTools/pythia8 (user set)
> hwpp_path : None (user set)
> pythia-pgs_path : None (user set)
> td_path : None (user set)
> delphes_path : None (user set)
> thepeg_path : None (user set)
> cluster_type : condor
> madanalysis5_path : None (user set)
> cluster_nb_retry : 1
> eps_viewer : None
> web_browser : None
> syscalc_path : None (user set)
> madanalysis_path : None (user set)
> lhapdf : /home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v2_6_6/HEPTools/lhapdf6/bin/lhapdf-config (user set)
> f2py_compiler : None
> hepmc_path : None (user set)
> cluster_retry_wait : 300
> fortran_compiler : None
> auto_update : 7 (user set)
> exrootanalysis_path : None (user set)
> timeout : 60
> cpp_compiler : None
> #************************************************************
> #* MadGraph5_aMC@NLO *
> #* *
> #* * * *
> #* * * * * *
> #* * * * * 5 * * * * *
> #* * * * * *
> #* * * *
> #* *
> #* *
> #* VERSION 2.6.6 2018-06-28 *
> #* *
> #* 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 default_unset_couplings 99
> set group_subprocesses Auto
> set ignore_six_quark_processes False
> set loop_optimized_output True
> 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~
> import model /home/storage/Users/xuyue/HeavyHiggs/plot_heavy/MG5_aMC_v\
> 2_6_6/models/HC_UFO
> define p = g u c d s b u~ c~ d~ s~ b~
> define j = g u c d s b u~ c~ d~ s~ b~
> define l+ = e+ mu+ ta+
> define l- = e- mu- ta-
> generate p p > z x0, z > j j, x0 > l- l+ j j
> output ./TEMP/HC_rw_p1
> ######################################################################
> ## PARAM_CARD AUTOMATICALY GENERATED BY MG5 ####
> ######################################################################
> ###################################
> ## INFORMATION FOR CKMBLOCK
> ###################################
> BLOCK CKMBLOCK #
> 1 2.277360e-01 # cabi
> ###################################
> ## INFORMATION FOR FRBLOCK
> ###################################
> BLOCK FRBLOCK #
> 1 5.000000e+03 # lambda
> 2 1.000000e+00 # ca
> 3 5.000000e-02 # ksm
> 4 0.000000e+00 # khtt
> 5 0.000000e+00 # katt
> 6 0.000000e+00 # khbb
> 7 0.000000e+00 # kabb
> 8 0.000000e+00 # khll
> 9 0.000000e+00 # kall
> 10 0.000000e+00 # khaa
> 11 0.000000e+00 # kaaa
> 12 0.000000e+00 # khza
> 13 0.000000e+00 # kaza
> 14 0.000000e+00 # khgg
> 15 0.000000e+00 # kagg
> 16 -5.248100e-01 # khzz
> 17 0.000000e+00 # kazz
> 18 -5.248100e-01 # khww
> 19 0.000000e+00 # kaww
> 20 0.000000e+00 # khda
> 21 -2.624050e-01 # khdz
> 22 -2.624050e-01 # khdwr
> 23 0.000000e+00 # khdwi
> 24 1.000000e+00 # khhgg
> 25 1.000000e+00 # kaagg
> 26 1.000000e+00 # kqa
> 27 1.000000e+00 # kqb
> 28 1.000000e+00 # kla
> 29 1.000000e+00 # klb
> 30 1.000000e+00 # kw1
> 31 1.000000e+00 # kw2
> 32 0.000000e+00 # kw3
> 33 0.000000e+00 # kw4
> 34 0.000000e+00 # kw5
> 35 0.000000e+00 # kz1
> 36 1.000000e+00 # kz3
> 37 0.000000e+00 # kz5
> 38 1.000000e+00 # kq
> 39 1.000000e+00 # kq3
> 40 1.000000e+00 # kl
> 41 1.000000e+00 # kg
> 42 1.000000e+00 # ka
> 43 1.000000e+00 # kz
> 44 1.000000e+00 # kw
> 45 0.000000e+00 # kza
> ###################################
> ## INFORMATION FOR MASS
> ###################################
> BLOCK MASS #
> 5 4.700000e+00 # mb
> 6 1.720000e+02 # mt
> 15 1.777000e+00 # mta
> 23 9.118760e+01 # mz
> 5000000 6.000000e+02 # mx0
> 5000001 1.250000e+02 # mx1
> 5000002 1.250000e+02 # mx2
> 1 0.000000e+00 # d : 0.0
> 2 0.000000e+00 # u : 0.0
> 3 0.000000e+00 # s : 0.0
> 4 0.000000e+00 # c : 0.0
> 11 0.000000e+00 # e- : 0.0
> 12 0.000000e+00 # ve : 0.0
> 13 0.000000e+00 # mu- : 0.0
> 14 0.000000e+00 # vm : 0.0
> 16 0.000000e+00 # vt : 0.0
> 21 0.000000e+00 # g : 0.0
> 22 0.000000e+00 # a : 0.0
> 24 7.982436e+01 # 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 1.279000e+02 # aewm1
> 2 1.166370e-05 # gf
> 3 1.184000e-01 # as
> ###################################
> ## INFORMATION FOR YUKAWA
> ###################################
> BLOCK YUKAWA #
> 5 4.700000e+00 # ymb
> 6 1.720000e+02 # ymt
> 15 1.777000e+00 # ymtau
> ###################################
> ## INFORMATION FOR DECAY
> ###################################
> BLOCK QNUMBERS 5000000 # x0
> 1 0 # 3 times electric charge
> 2 1 # number of spin states (2s+1)
> 3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
> 4 0 # particle/antiparticle distinction (0=own anti)
> ###################################
> ## INFORMATION FOR QNUMBERS 5000001
> ###################################
> BLOCK QNUMBERS 5000001 # x1
> 1 0 # 3 times electric charge
> 2 3 # number of spin states (2s+1)
> 3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
> 4 0 # particle/antiparticle distinction (0=own anti)
> ###################################
> ## INFORMATION FOR QNUMBERS 5000002
> ###################################
> BLOCK QNUMBERS 5000002 # x2
> 1 0 # 3 times electric charge
> 2 5 # number of spin states (2s+1)
> 3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
> 4 0 # particle/antiparticle distinction (0=own anti)
> #
> #*************************
> # Decay widths *
> #*************************
> #
> # PDG Width
> DECAY 1 0.000000e+00
> #
> # PDG Width
> DECAY 2 0.000000e+00
> #
> # PDG Width
> DECAY 3 0.000000e+00
> #
> # PDG Width
> DECAY 4 0.000000e+00
> #
> # PDG Width
> DECAY 5 0.000000e+00
> #
> # PDG Width
> DECAY 6 1.508336e+00
> #
> # PDG Width
> DECAY 11 0.000000e+00
> #
> # PDG Width
> DECAY 12 0.000000e+00
> #
> # PDG Width
> DECAY 13 0.000000e+00
> #
> # PDG Width
> DECAY 14 0.000000e+00
> #
> # PDG Width
> DECAY 15 0.000000e+00
> #
> # PDG Width
> DECAY 16 0.000000e+00
> #
> # PDG Width
> DECAY 21 0.000000e+00
> #
> # PDG Width
> DECAY 22 0.000000e+00
> #
> # PDG Width
> DECAY 23 2.495200e+00
> #
> # PDG Width
> DECAY 24 2.085000e+00
> #
> # PDG Width
> DECAY 5000000 1.505900e-01
> # BR NDA ID1 ID2 ...
> 6.784647e-01 2 -24 24 # 0.102169999173
> 3.215353e-01 2 23 23 # 0.048420000827
> #
> # PDG Width
> DECAY 5000001 4.070000e-03
> #
> # PDG Width
> DECAY 5000002 4.070000e-03
> #*********************************************************************
> # 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 *
> # *
> # To display more options, you can type the command: *
> # update full_run_card *
> #*********************************************************************
> #
> #*******************
> # 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 *
> #*********************************************************************
> 10000 = nevents ! Number of unweighted events requested
> 0 = 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
> # To see polarised beam options: type "update beam_pol"
> #*********************************************************************
> # 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
> # To see heavy ion options: type "update ion_pdf"
> #*********************************************************************
> # 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
> 3 = 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
> average = event_norm ! average/sum. Normalization of the weight in the LHEF
>
> #*********************************************************************
> # Matching parameter (MLM only)
> #*********************************************************************
> 0 = ickkw ! 0 no matching, 1 MLM
> 1.0 = alpsfact ! scale factor for QCD emission vx
> False = chcluster ! cluster only according to channel diag
> 5 = 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)
> 0.0 = 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) *
> #*********************************************************************
> 20.0 = ptj ! minimum pt for the jets
> 0.0 = ptb ! minimum pt for the b
> 10.0 = pta ! minimum pt for the photons
> 10.0 = ptl ! minimum pt for the charged leptons
> 0.0 = misset ! minimum missing Et (sum of neutrino's momenta)
> -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)
> {} = pt_min_pdg ! pt cut for other particles (use pdg code). Applied on particle and anti-particle
> {} = pt_max_pdg ! pt cut for other particles (syntax e.g. {6: 100, 25: 50})
> #
> # For display option for energy cut in the partonic center of mass frame type 'update ecut'
> #
> #*********************************************************************
> # Maximum and minimum absolute rapidity (for max, -1 means no cut) *
> #*********************************************************************
> 5.0 = etaj ! max rap for the jets
> -1.0 = etab ! max rap for the b
> 2.5 = etaa ! max rap for the photons
> 2.5 = 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
> {} = eta_min_pdg ! rap cut for other particles (use pdg code). Applied on particle and anti-particle
> {} = eta_max_pdg ! rap cut for other particles (syntax e.g. {6: 2.5, 23: 5})
> #*********************************************************************
> # Minimum and maximum DeltaR distance *
> #*********************************************************************
> 0.4 = drjj ! min distance between jets
> 0.0 = drbb ! min distance between b's
> 0.4 = drll ! min distance between leptons
> 0.4 = draa ! min distance between gammas
> 0.0 = drbj ! min distance between b and jet
> 0.4 = draj ! min distance between gamma and jet
> 0.4 = 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
> 0.4 = 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
> {} = mxx_min_pdg ! min invariant mass of a pair of particles X/X~ (e.g. {6:250})
> {'default': False} = mxx_only_part_antipart ! if True the invariant mass is applied only
> ! to pairs of particle/antiparticle and not to pairs of the same pdg codes.
> #*********************************************************************
> # 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 = ptheavy ! minimum pt for at least one heavy final state
> 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) *
> #*********************************************************************
> 5 = maxjetflavor ! Maximum jet pdg code
> #*********************************************************************
> #
> #*********************************************************************
> # Store info for systematics studies *
> # WARNING: Do not use for interference type of computation *
> #*********************************************************************
> True = use_syst ! Enable systematics studies
> #
> systematics = systematics_program ! none, systematics [python], SysCalc [depreceted, C++]
> ['--mur=0.5,1,2', '--muf=0.5,1,2', '--pdf=errorset'] = systematics_arguments ! see: https://cp3.irmp.ucl.ac.be/projects/madgraph/wiki/Systematics#Systematicspythonmodule
> # Syscalc is deprecated but to see the associate options type'update syscalc'
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Yue Xu (yuexu) said : #6

Hi Olivier,

Now I understand the issue!
Thanks a lot!

Best,
Yue