Initial value: 1 = cms.vstring(
'MSTJ(11)=3 ! Choice of the fragmentation function',
2 'MSTJ(22)=2 ! Decay those unstable particles',
3 'PARJ(71)=10 . ! for which ctau 10 mm',
4 'MSTP(2)=1 ! which order running alphaS',
5 'MSTP(33)=0 ! no K factors in hard cross sections',
6 'MSTP(51)=7 ! structure function chosen',
7 'MSTP(81)=1 ! multiple parton interactions 1 is Pythia default',
8 'MSTP(82)=1 ! Defines the multi-parton model : 1 for gammajetwithbg',
9 'MSTU(21)=1 ! Check on possible errors during program execution',
10 'PARP(82)=1.9409 ! pt cutoff for multiparton interactions',
11 'PARP(89)=1960. ! sqrts for which PARP82 is set',
12 'PARP(83)=0.5 ! Multiple interactions: matter distrbn parameter',
13 'PARP(84)=0.4 ! Multiple interactions: matter distribution parameter',
14 'PARP(90)=0.16 ! Multiple interactions: rescaling power',
15 'PARP(67)=2.5 ! amount of initial-state radiation',
16 'PARP(85)=1.0 ! gluon prod. mechanism in MI',
17 'PARP(86)=1.0 ! gluon prod. mechanism in MI',
21 'PARP(91)=2.1 ! kt distribution',
Definition at line 3 of file PythiaUESettingsForGammaJetWithBg_cfi.py.