single_neutrino_cfg.py

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import FWCore.ParameterSet.Config as cms

process = cms.Process("TestProcess")
process.load("SimGeneral.HepPDTESSource.pythiapdt_cfi")

process.load("Configuration.EventContent.EventContent_cff")

process.maxEvents = cms.untracked.PSet(
    input = cms.untracked.int32(10000)
)

process.load("IOMC.RandomEngine.IOMC_cff")
process.RandomNumberGeneratorService.generator.initialSeed = 456789

process.source = cms.Source("EmptySource",
    firstRun        = cms.untracked.uint32(1),
    firstEvent      = cms.untracked.uint32(1)
)

process.generator = cms.EDProducer("FlatRandomEGunProducer",
    PGunParameters = cms.PSet(
        PartID = cms.vint32(14),
        MinEta = cms.double(-5.5),
        MaxEta = cms.double(5.5),
        MinPhi = cms.double(-3.14159265359),
        MaxPhi = cms.double(3.14159265359),
        MinE   = cms.double(10.0),
        MaxE   = cms.double(10.0)
    ),
    AddAntiParticle = cms.bool(False),
    Verbosity       = cms.untracked.int32(0)
)

process.o1 = cms.OutputModule("PoolOutputModule",
    process.FEVTSIMEventContent,
    fileName = cms.untracked.string('single_neutrino_random.root')
)

process.p1 = cms.Path(process.generator)
process.outpath = cms.EndPath(process.o1)