00001 cms.PSet(
00002 pythiaUESettings = cms.vstring(
00003 'MSTJ(11)=3 ! Choice of the fragmentation function',
00004 'MSTJ(22)=2 ! Decay those unstable particles',
00005 'PARJ(71)=10 . ! for which ctau 10 mm',
00006 'MSTP(2)=1 ! which order running alphaS',
00007 'MSTP(33)=0 ! no K factors in hard cross sections',
00008 'MSTP(51)=7 ! structure function chosen (internal PDF CTEQ5L)',
00009 'MSTP(52)=1 ! work with internal PDFs',
00010 'MSTP(81)=1 ! multiple parton interactions 1 is Pythia default',
00011 'MSTP(82)=4 ! Defines the multi-parton model',
00012 'MSTU(21)=1 ! Check on possible errors during program execution',
00013 'PARP(82)=1.8 ! pt cutoff for multiparton interactions',
00014 'PARP(89)=1800. ! sqrts for which PARP82 is set',
00015 'PARP(83)=0.5 ! Multiple interactions: matter distrbn parameter',
00016 'PARP(84)=0.4 ! Multiple interactions: matter distribution parameter',
00017 'PARP(90)=0.25 ! Multiple interactions: rescaling power',
00018 'PARP(67)=2.5 ! amount of initial-state radiation',
00019 'PARP(85)=0.8 ! gluon prod. mechanism in MI',
00020 'PARP(86)=0.9 ! gluon prod. mechanism in MI',
00021 'PARP(62)=1.25 ! ',
00022 'PARP(64)=0.2 ! ',
00023 'MSTP(91)=1 !',
00024 'PARP(91)=2.1 ! kt distribution',
00025 'PARP(93)=15.0 ! '
00026 )
00027 )
1.7.3