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File indexing completed on 2021-02-14 12:52:40

0001 import FWCore.ParameterSet.Config as cms
0002 
0003 pythiaUESettingsBlock = cms.PSet(
0004     pythiaUESettings = cms.vstring(
0005         'MSTJ(11)=3     ! Choice of the fragmentation function', 
0006         'MSTJ(22)=2     ! Decay those unstable particles', 
0007         'PARJ(71)=10 .  ! for which ctau  10 mm', 
0008         'MSTP(2)=1      ! which order running alphaS', 
0009         'MSTP(33)=0     ! no K factors in hard cross sections', 
0010         'MSTP(51)=10042 ! structure function chosen (external PDF CTEQ6L1)',
0011     'MSTP(52)=2     ! work with LHAPDF',
0012         'MSTP(81)=1     ! multiple parton interactions 1 is Pythia default', 
0013         'MSTP(82)=4     ! Defines the multi-parton model', 
0014         'MSTU(21)=1     ! Check on possible errors during program execution', 
0015         'PARP(82)=1.8387   ! pt cutoff for multiparton interactions', 
0016         'PARP(89)=1960. ! sqrts for which PARP82 is set', 
0017         'PARP(83)=0.5   ! Multiple interactions: matter distrbn parameter', 
0018         'PARP(84)=0.4   ! Multiple interactions: matter distribution parameter', 
0019         'PARP(90)=0.16  ! Multiple interactions: rescaling power', 
0020         'PARP(67)=2.5    ! amount of initial-state radiation', 
0021         'PARP(85)=1.0  ! gluon prod. mechanism in MI', 
0022         'PARP(86)=1.0  ! gluon prod. mechanism in MI', 
0023         'PARP(62)=1.25   ! ', 
0024         'PARP(64)=0.2    ! ', 
0025         'MSTP(91)=1      !', 
0026         'PARP(91)=2.1   ! kt distribution', 
0027         'PARP(93)=15.0  ! '
0028     )
0029 )