Generate_TruthJets.py

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# Convert HepMC event record to xAODTruth for use by jet tools
from xAODTruthCnv.xAODTruthCnvConf import xAODMaker__xAODTruthCnvAlg
if not hasattr(prefiltSeq, 'xAODCnv'):
    prefiltSeq += xAODMaker__xAODTruthCnvAlg('xAODCnv',WriteTruthMetaData=False)
prefiltSeq.xAODCnv.AODContainerName = 'GEN_EVENT'
 
# Turn off jet tools specific to detector-level jets
from JetRec.JetRecFlags import jetFlags
jetFlags.useTracks = False
jetFlags.eventShapeTools = []
jetFlags.useTopo = False
jetFlags.useMuonSegments = False
if hasattr( jetFlags, 'usePFlow' ): jetFlags.usePFlow = False
elif hasattr( jetFlags, 'usePflow'): jetFlags.usePflow = False
else: raise NameError('jetFlags has no attribute usePflow or usePFlow') 
jetFlags.useCaloQualityTool = False
 
# Attach jet algorithms
from JetRec.JetAlgorithm import addJetRecoToAlgSequence
if not hasattr(prefiltSeq, 'jetalg'):
    addJetRecoToAlgSequence(prefiltSeq)