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import FWCore.ParameterSet.Config as cms
process = cms.Process("PROD")
process.load("Configuration.StandardSequences.SimulationRandomNumberGeneratorSeeds_cff")
process.source = cms.Source("EmptySource")
process.generator = cms.EDFilter("Pythia8GeneratorFilter",
maxEventsToPrint = cms.untracked.int32(0),
pythiaPylistVerbosity = cms.untracked.int32(1),
filterEfficiency = cms.untracked.double(1.0),
pythiaHepMCVerbosity = cms.untracked.bool(False),
comEnergy = cms.double(13000.),
#Turning on CMSSW Pythia8Interface resonance scale setting and pythia8 emission veto:
PythiaParameters = cms.PSet(
pythia8PowhegEmissionVetoSettings = cms.vstring(
'POWHEG:veto = 1',
'POWHEG:pTdef = 1',
'POWHEG:emitted = 0',
'POWHEG:pTemt = 0',
'POWHEG:pThard = 0',
'POWHEG:vetoCount = 100',
'SpaceShower:pTmaxMatch = 2',
'TimeShower:pTmaxMatch = 2',
),
pythia8_example12 = cms.vstring(
'POWHEGres:calcScales = on',
'Beams:frameType = 4',
'Beams:LHEF = powheg-b_bbar_4l.lhe',
),
parameterSets = cms.vstring('pythia8PowhegEmissionVetoSettings', 'pythia8_example12')
)
)
#if emissionVeto is on && MPIveto > 0 add 'MultipartonInteractions:pTmaxMatch = 2'
process.load("FWCore.MessageLogger.MessageLogger_cfi")
process.MessageLogger = cms.Service("MessageLogger",
cerr = cms.untracked.PSet(
enable = cms.untracked.bool(False)
),
cout = cms.untracked.PSet(
default = cms.untracked.PSet(
limit = cms.untracked.int32(2)
),
enable = cms.untracked.bool(True)
)
)
process.RandomNumberGeneratorService = cms.Service("RandomNumberGeneratorService",
generator = cms.PSet(
initialSeed = cms.untracked.uint32(123456789),
)
)
process.maxEvents = cms.untracked.PSet(
input = cms.untracked.int32(100)
)
process.GEN = cms.OutputModule("PoolOutputModule",
fileName = cms.untracked.string('pythia8ex12.root')
)
process.p = cms.Path(process.generator)
process.outpath = cms.EndPath(process.GEN)
process.schedule = cms.Schedule(process.p, process.outpath)
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