00001 import FWCore.ParameterSet.Config as cms 00002 00003 # 00004 # module to make a persistent copy of all status 2 00005 # (equivalent) genParticles of the top decay 00006 # 00007 decaySubset_SingleTop = cms.EDProducer("StDecaySubset", 00008 SwitchChainType = cms.int32(1), # 1: use daughter-mother-grandmother relationship 00009 # 2: directly look at initial state 00010 src = cms.InputTag("genParticles") 00011 ) 00012 00013