! File: main262.cmnd

! This file contains commands to be read in for a Pythia8 run.
! Lines not beginning with a letter or digit are comments.
! Names are case-insensitive  -  but spellings-sensitive!
! The changes here are illustrative, not always physics-motivated.

# Number of events to generate in the main program.
Main:numberOfEvents = 10000
Next:numberCount    = 100

# Retrieve a PDF set from LHAPDF6 (shower PDF variations need LHAPDF6)
PDF:pSet = LHAPDF6:CT10nlo

# Set hard process to tt~ production with leptonic W-decay at LHC7
Beams:idA = 2212
Beams:idB = 2212
Beams:eCM = 7000.0
Top:gg2ttbar = on
Top:qqbar2ttbar = on
24:onMode  = off
24:onIfAny = 11 13

# Switch on shower uncertainty estimates
UncertaintyBands:doVariations = on

# Here are some settings to assess PDF uncertainties in the shower.
UncertaintyBands:List = {
  scale_pdf_lo isr:pdf:minus=0.5,
  scale_pdf_hi isr:pdf:plus=2.0
}

# Here are some settings to assess renormalization scale variations and PDF
# uncertainties in the shower.
#UncertaintyBands:List = {
#  scale_fsr_lo fsr:muRfac=0.5,
#  scale_fsr_hi fsr:muRfac=2.0,
#  scale_isr_lo isr:muRfac=0.5,
#  scale_isr_hi isr:muRfac=2.0,
#  scale_pdf_lo isr:pdf:minus=0.5,
#  scale_pdf_hi isr:pdf:plus=2.0
#}

# Switch off some generation steps.
# This will make accumulating enough events easier, but
# omit physics modelling!
HadronLevel:all = off
PartonLevel:MPI = off
