import FWCore.ParameterSet.Config as cms generator = cms.EDProducer("FlatRandomPtGunProducer", PGunParameters = cms.PSet( MaxPt = cms.double(100.0), MinPt = cms.double(0.01), PartID = cms.vint32(22), MaxEta = cms.double(3.1), MaxPhi = cms.double(3.14159265359), MinEta = cms.double(-3.1), MinPhi = cms.double(-3.14159265359) ), Verbosity = cms.untracked.int32(0), psethack = cms.string('double photon pt 0.01 to 100'), AddAntiParticle = cms.bool(True), firstRun = cms.untracked.uint32(1) )