File indexing completed on 2024-04-06 12:13:55
0001
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0003
0004
0005 import FWCore.ParameterSet.Config as cms
0006
0007 process = cms.Process("Gen")
0008
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0015
0016
0017
0018 process.load("FWCore.MessageService.MessageLogger_cfi")
0019
0020 process.load("SimGeneral.HepPDTESSource.pythiapdt_cfi")
0021
0022
0023 process.load("Configuration.EventContent.EventContent_cff")
0024
0025 process.maxEvents = cms.untracked.PSet(
0026 input = cms.untracked.int32(5)
0027 )
0028
0029 process.RandomNumberGeneratorService = cms.Service("RandomNumberGeneratorService",
0030 generator = cms.PSet(
0031 initialSeed = cms.untracked.uint32(123456789),
0032 engineName = cms.untracked.string('HepJamesRandom')
0033 )
0034 )
0035
0036
0037 process.source = cms.Source("EmptySource")
0038
0039 process.generator = cms.EDProducer("Pythia6PartonPtGun",
0040 maxEventsToPrint = cms.untracked.int32(5),
0041 pythiaPylistVerbosity = cms.untracked.int32(1),
0042 pythiaHepMCVerbosity = cms.untracked.bool(True),
0043 PGunParameters = cms.PSet(
0044 PartonID = cms.int32(21),
0045 MinPhi = cms.double(-3.14159265359),
0046 MaxPhi = cms.double(3.14159265359),
0047 MinPt = cms.double(50.0),
0048 MaxPt = cms.double(50.0001),
0049 MinEta = cms.double(-1.0),
0050 MaxEta = cms.double(1.0)
0051 ),
0052 PythiaParameters = cms.PSet(
0053 pythiaJets = cms.vstring(),
0054 pythiaUESettings = cms.vstring(
0055 'MSTJ(11)=3 ! Choice of the fragmentation function',
0056 'MSTJ(22)=2 ! Decay those unstable particles',
0057 'PARJ(71)=10 . ! for which ctau 10 mm',
0058 'MSTP(2)=1 ! which order running alphaS',
0059 'MSTP(33)=0 ! no K factors in hard cross sections',
0060 'MSTP(51)=7 ! structure function chosen',
0061 'MSTP(81)=1 ! multiple parton interactions 1 is Pythia default',
0062 'MSTP(82)=4 ! Defines the multi-parton model',
0063 'MSTU(21)=1 ! Check on possible errors during program execution',
0064 'PARP(82)=1.9409 ! pt cutoff for multiparton interactions',
0065 'PARP(89)=1960. ! sqrts for which PARP82 is set',
0066 'PARP(83)=0.5 ! Multiple interactions: matter distrbn parameter',
0067 'PARP(84)=0.4 ! Multiple interactions: matter distribution parameter',
0068 'PARP(90)=0.16 ! Multiple interactions: rescaling power',
0069 'PARP(67)=2.5 ! amount of initial-state radiation',
0070 'PARP(85)=1.0 ! gluon prod. mechanism in MI',
0071 'PARP(86)=1.0 ! gluon prod. mechanism in MI',
0072 'PARP(62)=1.25 ! ',
0073 'PARP(64)=0.2 ! ',
0074 'MSTP(91)=1 !',
0075 'PARP(91)=2.1 ! kt distribution',
0076 'PARP(93)=15.0 ! '
0077 ),
0078 parameterSets = cms.vstring(
0079 'pythiaUESettings',
0080 'pythiaJets'
0081 )
0082 )
0083 )
0084
0085 process.FEVT = cms.OutputModule("PoolOutputModule",
0086 process.FEVTSIMEventContent,
0087 fileName = cms.untracked.string('gen_TopGun.root')
0088 )
0089
0090 process.p = cms.Path(process.generator)
0091 process.outpath = cms.EndPath(process.FEVT)
0092 process.schedule = cms.Schedule(process.p,process.outpath)
0093
0094