PythiaUEPXSettings_cfi.py

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import FWCore.ParameterSet.Config as cms

pythiaUESettingsBlock = cms.PSet(
    pythiaUESettings = cms.vstring(
        'MSTU(21)=1     ! Check on possible errors during program execution', 
        'MSTJ(22)=2     ! Decay those unstable particles', 
        'PARJ(71)=10.   ! for which ctau  10 mm', 
        'MSTP(2)=1      ! which order running alphaS', 
        'MSTP(33)=0     ! no K factors in hard cross sections', 
        'MSTP(51)=7     ! structure function chosen (internal PDF CTEQ5L)',
    'MSTP(52)=1     ! work with internal PDF',
        'PARJ(1)=0.073  ! FLAV (Tuned by Professor on LEP data)',
        'PARJ(2)=0.2    ! FLAV (Tuned by Professor on LEP data)',
        'PARJ(3)=0.94   ! FLAV (Tuned by Professor on LEP data)',
        'PARJ(4)=0.032  ! FLAV (Tuned by Professor on LEP data)',
        'PARJ(11)=0.31  ! FLAV (Tuned by Professor on LEP data)',
        'PARJ(12)=0.4   ! FLAV (Tuned by Professor on LEP data)',
        'PARJ(13)=0.54  ! FLAV (Tuned by Professor on LEP data)',
        'PARJ(25)=0.63  ! FLAV (Tuned by Professor on LEP data)',
        'PARJ(26)=0.12  ! FLAV (Tuned by Professor on LEP data)', 
        'MSTJ(11)=5     ! HAD Choice of the fragmentation function',    
    'PARJ(21)=0.313 ! HAD', 
        'PARJ(41)=0.49  ! HAD',                        
        'PARJ(42)=1.2   ! HAD',                                     
        'PARJ(46)=1.0   ! HAD',                                     
        'PARJ(47)=1.0   ! HAD',                                     
        'MSTP(64)=3     ! ISR',
        'PARP(64)=2.0   ! ISR',            
        'MSTP(67)=2     ! ISR',            
        'PARP(67)=1.0   ! ISR',
        'MSTP(70)=2     ! ISR',
        'MSTP(72)=1     ! ISR',
        'PARJ(81)=0.257 ! FSR',
        'PARJ(82)=0.8   ! FSR',
        'PARP(71)=2.0   ! FSR',
        'MSTP(81)=21    ! MPI 21 is Pythia new set of MPI models', 
        'MSTP(82)=5     ! MPI model', 
        'PARP(82)=2.2   ! MPI pt cutoff for multiparton interactions', 
        'PARP(89)=1800. ! MPI sqrts for which PARP82 is set', 
        'PARP(83)=1.7   ! MPI matter distrbn parameter', 
        'PARP(90)=0.23  ! MPI rescaling power', 
        'MSTP(95)=6     ! CR (color reconnection parameters)',
        'PARP(77)=0.33  ! CR',
        'PARP(78)=0.9   ! CR',
        'MSTP(88)=0     ! BR', 
        'PARP(79)=2.0   ! BR', 
        'PARP(80)=0.05  ! BR', 
        'MSTP(91)=1     ! BR', 
        'PARP(91)=2.0   ! BR kt distribution', 
        'PARP(93)=10.0  ! BR'
    )
)