MadGraph Not Producing the Required Number of Events

Asked by Umar Sohail Qureshi

I am attempting to compute a sample for vector boson fusion stau production i.e. p p > ta1+ ta1- j j QCD=0. However, the event generation process takes really long and even though it runs to completion successfully, I am only getting 55 events even though I specify 100000 events. I am using the built-in MSSM_SLHA2 model.

Any assistance regarding this would be greatly appreciated!

*****
My proc card reads:
*****

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 MSSM_SLHA2
generate p p > ta1+ ta1- j j QCD=0
output vbf_stau_1

*******
My param card reads:
*******

######################################################################
## 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 DSQMIX
###################################
Block dsqmix
    1 1 1.000000e+00 # RRd1x1
    2 2 1.000000e+00 # RRd2x2
    3 3 9.387379e-01 # RRd3x3
    3 6 3.446319e-01 # RRd3x6
    4 4 1.000000e+00 # RRd4x4
    5 5 1.000000e+00 # RRd5x5
    6 3 -3.446319e-01 # RRd6x3
    6 6 9.387379e-01 # RRd6x6

###################################
## INFORMATION FOR FRALPHA
###################################
Block fralpha
    1 -1.138252e-01 # alp

###################################
## INFORMATION FOR HMIX
###################################
Block hmix
    1 3.576810e+02 # RMUH
    2 9.748624e+00 # tb
    4 1.664391e+05 # MA2

###################################
## INFORMATION FOR MASS
###################################
Block mass
    5 4.889917e+00 # MB
    6 1.750000e+02 # MT
   15 1.777000e+00 # Mta
   23 9.118760e+01 # MZ
   24 7.982901e+01 # MW
   25 1.108991e+02 # MH01
   35 3.999601e+02 # MH02
   36 3.995839e+02 # MA0
   37 4.078790e+02 # MH
  1000001 5.684411e+02 # set of param :1*Msd1, 1*Msd2
  1000002 5.611190e+02 # set of param :1*Msu1, 1*Msu2
  1000005 5.130652e+02 # Msd3
  1000006 3.996685e+02 # Msu3
  1000011 2.029157e+02 # set of param :1*Msl1, 1*Msl2
  1000012 1.852583e+02 # set of param :1*Msn1, 1*Msn2
  1000015 100 # Msl3
  1000016 1.847085e+02 # Msn3
  1000021 6.077137e+02 # Mgo
  1000022 9.668807e+01 # Mneu1
  1000023 1.810882e+02 # Mneu2
  1000024 1.816965e+02 # Mch1
  1000025 -3.637560e+02 # Mneu3
  1000035 3.817294e+02 # Mneu4
  1000037 3.799393e+02 # Mch2
  2000001 5.452285e+02 # set of param :1*Msd4, 1*Msd5
  2000002 5.492593e+02 # set of param :1*Msu4, 1*Msu5
  2000005 5.437267e+02 # Msd6
  2000006 5.857858e+02 # Msu6
  2000011 1.441028e+02 # set of param :1*Msl4, 1*Msl5
  2000015 2.068678e+02 # Msl6
## 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 0.000000e+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
  1000014 1.852583e+02 # svm : Msn1
  1000013 2.029157e+02 # mul- : Msl1
  2000013 1.441028e+02 # mur- : Msl4
  1000004 5.611190e+02 # cl : Msu1
  2000004 5.492593e+02 # cr : Msu4
  1000003 5.684411e+02 # sl : Msd1
  2000003 5.452285e+02 # sr : Msd4

###################################
## INFORMATION FOR MSD2
###################################
Block msd2
    1 1 2.736847e+05 # set of param :1*RmD21x1, 1*RmD22x2
    2 2 2.736847e+05 # MG5 will not use this value use instead 1*mdl_RmD21x1
    3 3 2.702620e+05 # RmD23x3

###################################
## INFORMATION FOR MSE2
###################################
Block mse2
    1 1 1.863063e+04 # set of param :1*RmE21x1, 1*RmE22x2
    2 2 1.863063e+04 # MG5 will not use this value use instead 1*mdl_RmE21x1
    3 3 1.796764e+04 # RmE23x3

###################################
## INFORMATION FOR MSL2
###################################
Block msl2
    1 1 3.815567e+04 # set of param :1*RmL21x1, 1*RmL22x2
    2 2 3.815567e+04 # MG5 will not use this value use instead 1*mdl_RmL21x1
    3 3 3.782868e+04 # RmL23x3

###################################
## INFORMATION FOR MSOFT
###################################
Block msoft
    1 1.013965e+02 # RMx1
    2 1.915042e+02 # RMx2
    3 5.882630e+02 # RMx3
   21 3.233749e+04 # mHd2
   22 -1.288001e+05 # mHu2

###################################
## INFORMATION FOR MSQ2
###################################
Block msq2
    1 1 2.998367e+05 # set of param :1*RmQ21x1, 1*RmQ22x2
    2 2 2.998367e+05 # MG5 will not use this value use instead 1*mdl_RmQ21x1
    3 3 2.487654e+05 # RmQ23x3

###################################
## INFORMATION FOR MSU2
###################################
Block msu2
    1 1 2.803821e+05 # set of param :1*RmU21x1, 1*RmU22x2
    2 2 2.803821e+05 # MG5 will not use this value use instead 1*mdl_RmU21x1
    3 3 1.791371e+05 # RmU23x3

###################################
## INFORMATION FOR NMIX
###################################
Block nmix
    1 1 9.863644e-01 # RNN1x1
    1 2 -5.311036e-02 # RNN1x2
    1 3 1.464340e-01 # RNN1x3
    1 4 -5.311861e-02 # RNN1x4
    2 1 9.935054e-02 # RNN2x1
    2 2 9.449493e-01 # RNN2x2
    2 3 -2.698467e-01 # RNN2x3
    2 4 1.561507e-01 # RNN2x4
    3 1 -6.033880e-02 # RNN3x1
    3 2 8.770049e-02 # RNN3x2
    3 3 6.958775e-01 # RNN3x3
    3 4 7.102270e-01 # RNN3x4
    4 1 -1.165071e-01 # RNN4x1
    4 2 3.107390e-01 # RNN4x2
    4 3 6.492260e-01 # RNN4x3
    4 4 -6.843778e-01 # RNN4x4

###################################
## INFORMATION FOR SELMIX
###################################
Block selmix
    1 1 1.000000e+00 # RRl1x1
    2 2 1.000000e+00 # RRl2x2
    3 3 2.824872e-01 # RRl3x3
    3 6 9.592711e-01 # RRl3x6
    4 4 1.000000e+00 # RRl4x4
    5 5 1.000000e+00 # RRl5x5
    6 3 9.592711e-01 # RRl6x3
    6 6 -2.824872e-01 # RRl6x6

###################################
## INFORMATION FOR SMINPUTS
###################################
Block sminputs
    1 1.279340e+02 # aEWM1
    3 1.180000e-01 # aS (Note that Parameter not used if you use a PDF set)

###################################
## INFORMATION FOR SNUMIX
###################################
Block snumix
    1 1 1.000000e+00 # RRn1x1
    2 2 1.000000e+00 # RRn2x2
    3 3 1.000000e+00 # RRn3x3

###################################
## INFORMATION FOR TD
###################################
Block td
    3 3 -1.106937e+02 # Rtd3x3

###################################
## INFORMATION FOR TE
###################################
Block te
    3 3 -2.540197e+01 # Rte3x3

###################################
## INFORMATION FOR TU
###################################
Block tu
    3 3 -4.447525e+02 # Rtu3x3

###################################
## INFORMATION FOR UMIX
###################################
Block umix
    1 1 9.168349e-01 # RUU1x1
    1 2 -3.992666e-01 # RUU1x2
    2 1 3.992666e-01 # RUU2x1
    2 2 9.168349e-01 # RUU2x2

###################################
## INFORMATION FOR UPMNS
###################################
Block upmns
    1 1 1.000000e+00 # RMNS1x1
    2 2 1.000000e+00 # RMNS2x2
    3 3 1.000000e+00 # RMNS3x3

###################################
## INFORMATION FOR USQMIX
###################################
Block usqmix
    1 1 1.000000e+00 # RRu1x1
    2 2 1.000000e+00 # RRu2x2
    3 3 5.536450e-01 # RRu3x3
    3 6 8.327528e-01 # RRu3x6
    4 4 1.000000e+00 # RRu4x4
    5 5 1.000000e+00 # RRu5x5
    6 3 8.327528e-01 # RRu6x3
    6 6 -5.536450e-01 # RRu6x6

###################################
## INFORMATION FOR VCKM
###################################
Block vckm
    1 1 1.000000e+00 # RCKM1x1
    2 2 1.000000e+00 # RCKM2x2
    3 3 1.000000e+00 # RCKM3x3

###################################
## INFORMATION FOR VMIX
###################################
Block vmix
    1 1 9.725578e-01 # RVV1x1
    1 2 -2.326612e-01 # RVV1x2
    2 1 2.326612e-01 # RVV2x1
    2 2 9.725578e-01 # RVV2x2

###################################
## INFORMATION FOR YD
###################################
Block yd
    3 3 1.388402e-01 # Ryd3x3

###################################
## INFORMATION FOR YE
###################################
Block ye
    3 3 1.008908e-01 # Rye3x3

###################################
## INFORMATION FOR YU
###################################
Block yu
    3 3 8.928445e-01 # Ryu3x3

###################################
## INFORMATION FOR DECAY
###################################
DECAY 6 1.561950e+00 # WT
DECAY 23 2.411433e+00 # WZ
DECAY 24 2.002822e+00 # WW
DECAY 25 1.986108e-03 # WH01
DECAY 35 5.748014e-01 # WH02
DECAY 36 6.321785e-01 # WA0
DECAY 37 5.469628e-01 # WH
DECAY 1000001 5.312788e+00 # Wsd1
DECAY 1000002 5.477195e+00 # Wsu1
DECAY 1000003 5.312788e+00 # Wsd2
DECAY 1000004 5.477195e+00 # Wsu2
DECAY 1000005 3.736276e+00 # Wsd3
DECAY 1000006 2.021596e+00 # Wsu3
DECAY 1000011 2.136822e-01 # Wsl1
DECAY 1000012 1.498816e-01 # Wsn1
DECAY 1000013 2.136822e-01 # Wsl2
DECAY 1000014 1.498816e-01 # Wsn2
DECAY 1000015 1.483273e-01 # Wsl3
DECAY 1000016 1.475190e-01 # Wsn3
DECAY 1000021 5.506754e+00 # Wgo
DECAY 1000023 2.077700e-02 # Wneu2
DECAY 1000024 1.704145e-02 # Wch1
DECAY 1000025 1.915985e+00 # Wneu3
DECAY 1000035 2.585851e+00 # Wneu4
DECAY 1000037 2.486895e+00 # Wch2
DECAY 2000001 2.858123e-01 # Wsd4
DECAY 2000002 1.152973e+00 # Wsu4
DECAY 2000003 2.858123e-01 # Wsd5
DECAY 2000004 1.152973e+00 # Wsu5
DECAY 2000005 8.015663e-01 # Wsd6
DECAY 2000006 7.373133e+00 # Wsu6
DECAY 2000011 2.161216e-01 # Wsl4
DECAY 2000013 2.161216e-01 # Wsl5
DECAY 2000015 2.699061e-01 # Wsl6
## 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 0.000000e+00 # d : 0.0
DECAY 2 0.000000e+00 # u : 0.0
DECAY 3 0.000000e+00 # s : 0.0
DECAY 4 0.000000e+00 # c : 0.0
DECAY 5 0.000000e+00 # b : 0.0
DECAY 11 0.000000e+00 # e- : 0.0
DECAY 12 0.000000e+00 # ve : 0.0
DECAY 13 0.000000e+00 # mu- : 0.0
DECAY 14 0.000000e+00 # vm : 0.0
DECAY 15 0.000000e+00 # ta- : 0.0
DECAY 16 0.000000e+00 # vt : 0.0
DECAY 21 0.000000e+00 # g : 0.0
DECAY 22 0.000000e+00 # a : 0.0
DECAY 1000022 0.000000e+00 # n1 : 0.0
#===========================================================
# QUANTUM NUMBERS OF NEW STATE(S) (NON SM PDG CODE)
#===========================================================

Block QNUMBERS 1000022 # n1
        1 0 # 3 times electric charge
        2 2 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 0 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000023 # n2
        1 0 # 3 times electric charge
        2 2 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 0 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000025 # n3
        1 0 # 3 times electric charge
        2 2 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 0 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000035 # n4
        1 0 # 3 times electric charge
        2 2 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 0 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000024 # x1+
        1 3 # 3 times electric charge
        2 2 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000037 # x2+
        1 3 # 3 times electric charge
        2 2 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000021 # go
        1 0 # 3 times electric charge
        2 2 # number of spin states (2S+1)
        3 8 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 0 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 35 # h2
        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)
Block QNUMBERS 36 # h3
        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)
Block QNUMBERS 37 # h+
        1 3 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000012 # sve
        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 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000014 # svm
        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 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000016 # svt
        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 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000011 # el-
        1 -3 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000013 # mul-
        1 -3 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000015 # ta1-
        1 -3 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 2000011 # er-
        1 -3 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 2000013 # mur-
        1 -3 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 2000015 # ta2-
        1 -3 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000002 # ul
        1 2 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000004 # cl
        1 2 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000006 # t1
        1 2 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 2000002 # ur
        1 2 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 2000004 # cr
        1 2 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 2000006 # t2
        1 2 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000001 # dl
        1 -1 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000003 # sl
        1 -1 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 1000005 # b1
        1 -1 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 2000001 # dr
        1 -1 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 2000003 # sr
        1 -1 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)
Block QNUMBERS 2000005 # b2
        1 -1 # 3 times electric charge
        2 1 # number of spin states (2S+1)
        3 3 # colour rep (1: singlet, 3: triplet, 8: octet)
        4 1 # Particle/Antiparticle distinction (0=own anti)

*******
My run card reads:
*******

#*********************************************************************
# 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 *
#*********************************************************************
#
#*********************************************************************
# 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, 4=photon from muon *
#*********************************************************************
     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
 -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)
  average = event_norm ! average/sum. Normalization of the weight in the LHEF
# To see MLM/CKKW merging options: type "update MLM" or "update CKKW"

#*********************************************************************
#
#*********************************************************************
# Phase-Space Optimization strategy (basic options)
#*********************************************************************
   0 = nhel ! using helicities importance sampling or not.
                             ! 0: sum over helicity, 1: importance sampling
   2 = sde_strategy ! default integration strategy (hep-ph/2021.xxxxx)
                             ! 1 is old strategy (using amp square)
        ! 2 is new strategy (using only the denominator)
# To see advanced option for Phase-Space optimization: type "update psoptim"
#*********************************************************************
# 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)
#*********************************************************************
# Standard Cuts *
#*********************************************************************
# Minimum and maximum pt's (for max, -1 means no cut) *
#*********************************************************************
 20.0 = ptj ! minimum pt for the jets
 -1.0 = ptjmax ! maximum pt for the jets
 {} = 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
 {} = 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
 -1.0 = drjjmax ! max distance between jets
#*********************************************************************
# Minimum and maximum invariant mass for pairs *
#*********************************************************************
 0.0 = mmjj ! min invariant mass of a jet pair
 -1.0 = mmjjmax ! max invariant mass of a jet 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.
#*********************************************************************
# Inclusive cuts *
#*********************************************************************
 0.0 = ptheavy ! minimum pt for at least one heavy final state
 0.0 = xptj ! minimum pt for at least one jet
 #*********************************************************************
 # 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
 -1.0 = ptj1max ! maximum pt for the leading jet in pt
 -1.0 = ptj2max ! maximum pt for the second jet in pt
 0 = cutuse ! reject event if fails any (0) / all (1) jet pt cuts
 #*********************************************************************
 # 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)
 #*********************************************************************
 # 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
#*********************************************************************
# 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 *
#*********************************************************************
   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'

Question information

Language:
English Edit question
Status:
Solved
For:
MadGraph5_aMC@NLO Edit question
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Solved by:
Umar Sohail Qureshi
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Revision history for this message
Olivier Mattelaer (olivier-mattelaer) said :
#1

Hi,

Which version of MG5aMC are you using?
Did you try the suggestion printed on screen (if you do not have it, it likely means that you run an outdated version which is not able to handle VBF process efficiently, in that case update your version).

Could you also attach your run_card such that I can see which sde_strategy you did use (again if you do not have that entry in your card, it means that you need to update your code)

Cheers,

Olivier

Revision history for this message
Olivier Mattelaer (olivier-mattelaer) said :
#2

Ah actually, you did paste the run_card, so you are using sde_strategy =2 which is likely the best here. But did you try sde_strategy=1?

Revision history for this message
Umar Sohail Qureshi (umarsqureshi) said :
#3

Hi Oliver,

Thank you for your suggestion. Changing the integration strategy actually fixed the issue completely. I switched to using amplitude squared instead of just the denominator and it solved the problem.

Thank you very much!