PythiaUEZ1Settings_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(33)=0     ! no K factors in hard cross sections', 
        'MSTP(2)=1      ! which order running alphaS', 

        'MSTP(51)=7     ! structure function chosen (internal PDF CTEQ5L)',
        'MSTP(52)=1     ! work with internal PDFs',

        'PARP(82)=1.932 ! pt cutoff for multiparton interactions', 
        'PARP(89)=1800. ! sqrts for which PARP82 is set', 
        'PARP(90)=0.275 ! Multiple interactions: rescaling power', 

        'MSTP(95)=6     ! CR (color reconnection parameters)',
        'PARP(77)=1.016 ! CR',
        'PARP(78)=0.538 ! CR',

        'PARP(80)=0.1   ! Prob. colored parton from BBR',

        'PARP(83)=0.356 ! Multiple interactions: matter distribution parameter', 
        'PARP(84)=0.651 ! Multiple interactions: matter distribution parameter', 

        'PARP(62)=1.025 ! ISR cutoff', 

        'MSTP(91)=1     ! Gaussian primordial kT', 
        'PARP(93)=10.0  ! primordial kT-max', 

        'MSTP(81)=21    ! multiple parton interactions 1 is Pythia default', 
        'MSTP(82)=4     ! Defines the multi-parton model', 
    )
)