import FWCore.ParameterSet.Config as cms generator = cms.EDProducer("ExpoRandomPGunProducer", PGunParameters = cms.PSet( # you can request more than 1 particle PartID = cms.vint32(-211), MinEta = cms.double(-3.1), MaxEta = cms.double(3.1), MinPhi = cms.double(-3.14159265359), MaxPhi = cms.double(3.14159265359), MinP = cms.double(1.), MaxP = cms.double(2000.), ), firstRun = cms.untracked.uint32(1), AddAntiParticle = cms.bool(False) )