TRUTH1.py

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# Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
# TRUTH1.py - format containing extended common ATLAS truth record
 
from AthenaConfiguration.ComponentAccumulator import ComponentAccumulator
from AthenaConfiguration.Enums import MetadataCategory
 
def TRUTH1Cfg(flags):
    """Main config for TRUTH1"""
    acc = ComponentAccumulator()
 
    # Add translator from EVGEN input to xAOD-like truth
    # Add the truth content of DAOD_PHYS, as in TRUTH3
    from DerivationFrameworkMCTruth.MCTruthCommonConfig import AddTruthDerivationContentsCfg
    acc.merge(AddTruthDerivationContentsCfg(flags))
 
    #==============================================================================
    # HEAVY FLAVOR DECORATIONS (ttbar)
    #==============================================================================
    from DerivationFrameworkMCTruth.HFHadronsCommonConfig import HFHadronsCommonCfg
    acc.merge(HFHadronsCommonCfg(flags))
 
    #==============================================================================
    # Set up slimming content list
    #==============================================================================
    from DerivationFrameworkCore.SlimmingHelper import SlimmingHelper
    TRUTH1SlimmingHelper = SlimmingHelper("TRUTH1SlimmingHelper", NamesAndTypes = flags.Input.TypedCollections, flags = flags)
    TRUTH1SlimmingHelper.AppendToDictionary = {'EventInfo':'xAOD::EventInfo','EventInfoAux':'xAOD::EventAuxInfo',
                                               'TruthEvents':'xAOD::TruthEventContainer','TruthEventsAux':'xAOD::TruthEventAuxContainer',
                                               'TruthVertices':'xAOD::TruthVertexContainer','TruthVerticesAux':'xAOD::TruthVertexAuxContainer',
                                               'TruthParticles':'xAOD::TruthParticleContainer','TruthParticlesAux':'xAOD::TruthParticleAuxContainer', 
                                               'TruthLHEParticles':'xAOD::TruthParticleContainer', 'TruthLHEParticlesAux':'xAOD::TruthParticleAuxContainer',
                                               'MET_Truth':'xAOD::MissingETContainer','MET_TruthAux':'xAOD::MissingETAuxContainer',
                                               'TruthElectrons':'xAOD::TruthParticleContainer','TruthElectronsAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthMuons':'xAOD::TruthParticleContainer','TruthMuonsAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthPhotons':'xAOD::TruthParticleContainer','TruthPhotonsAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthTaus':'xAOD::TruthParticleContainer','TruthTausAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthNeutrinos':'xAOD::TruthParticleContainer','TruthNeutrinosAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthBSM':'xAOD::TruthParticleContainer','TruthBSMAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthBoson':'xAOD::TruthParticleContainer','TruthBosonAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthBottom':'xAOD::TruthParticleContainer','TruthBottomAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthTop':'xAOD::TruthParticleContainer','TruthTopAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthForwardProtons':'xAOD::TruthParticleContainer','TruthForwardProtonsAux':'xAOD::TruthParticleAuxContainer',
                                               'BornLeptons':'xAOD::TruthParticleContainer','BornLeptonsAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthBosonsWithDecayParticles':'xAOD::TruthParticleContainer','TruthBosonsWithDecayParticlesAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthBosonsWithDecayVertices':'xAOD::TruthVertexContainer','TruthBosonsWithDecayVerticesAux':'xAOD::TruthVertexAuxContainer',
                                               'TruthBSMWithDecayParticles':'xAOD::TruthParticleContainer','TruthBSMWithDecayParticlesAux':'xAOD::TruthParticleAuxContainer',
                                               'TruthBSMWithDecayVertices':'xAOD::TruthVertexContainer','TruthBSMWithDecayVerticesAux':'xAOD::TruthVertexAuxContainer',
                                               'AntiKtVR30Rmax4Rmin02TruthChargedJets':'xAOD::JetContainer','AntiKtVR30Rmax4Rmin02TruthChargedJetsAux':'xAOD::JetAuxContainer',
                                               'AntiKt4TruthDressedWZJets':'xAOD::JetContainer','AntiKt4TruthDressedWZJetsAux':'xAOD::JetAuxContainer',
                                               'AntiKt10TruthJets':'xAOD::JetContainer','AntiKt10TruthJetsAux':'xAOD::JetAuxContainer',
                                               'TruthLabelBHadronsFinal':'xAOD::TruthParticleContainer', 'TruthLabelBHadronsInitial':'xAOD::TruthParticleContainer',
                                               'TruthLabelTQuarksFinal':'xAOD::TruthParticleContainer', 'TruthLabelBQuarksFinal':'xAOD::TruthParticleContainer', 'TruthLabelCQuarksFinal':'xAOD::TruthParticleContainer',                                               
                                               'TruthLabelCHadronsFinal':'xAOD::TruthParticleContainer', 'TruthLabelCHadronsInitial':'xAOD::TruthParticleContainer',
                                               'TruthLabelHBosons':'xAOD::TruthParticleContainer', 'TruthLabelWBosons':'xAOD::TruthParticleContainer', 'TruthLabelZBosons':'xAOD::TruthParticleContainer',
                                               'TruthLabelPartons':'xAOD::TruthParticleContainer', 'TruthLabelTausFinal':'xAOD::TruthParticleContainer'  
                                              }
    # Custom all variables -- won't be overridden by the call below, just added to. Full lists for completeness.
    TRUTH1SlimmingHelper.AllVariables = [ 'EventInfo',
                                          'TruthEvents', 
                                          'TruthVertices',
                                          'TruthParticles',
                                          'TruthLHEParticles',
                                          'TruthLabelBHadronsFinal',
                                          'TruthLabelBHadronsInitial',
                                          'TruthLabelBQuarksFinal',
                                          'TruthLabelCHadronsFinal',
                                          'TruthLabelCHadronsInitial',
                                          'TruthLabelCQuarksFinal',
                                          'TruthLabelHBosons',
                                          'TruthLabelPartons',
                                          'TruthLabelTQuarksFinal',
                                          'TruthLabelTausFinal',
                                          'TruthLabelWBosons',
                                          'TruthLabelZBosons',
                                          'TruthTausWithDecayParticles',
                                          'TruthTausWithDecayVertices']
    # Custom extra variables -- won't be overridden by the call below, just added to. Full lists for completeness.
    TRUTH1SlimmingHelper.ExtraVariables = ["AntiKtVR30Rmax4Rmin02TruthChargedJets.GhostHBosonsCount.GhostHBosonsPt.GhostBHadronsFinalCount.GhostBHadronsFinalPt.GhostCHadronsFinalCount.HadronConeExclTruthLabelID.PartonTruthLabelID.ConeExclBHadronsFinal.ConeExclCHadronsFinal.ConeExclTausFinal.constituentLinks",
                                           "AntiKt4TruthDressedWZJets.GhostCHadronsFinalCount.GhostBHadronsFinalCount.pt.HadronConeExclTruthLabelID.PartonTruthLabelID.ConeExclBHadronsFinal.ConeExclCHadronsFinal.ConeExclTausFinal.constituentLinks"]
 
    # Add standard content
    from DerivationFrameworkMCTruth.MCTruthCommonConfig import addPhysTruthContentToSlimmerTool
    addPhysTruthContentToSlimmerTool(TRUTH1SlimmingHelper)
    
    # Generate item list and create stream 
    from OutputStreamAthenaPool.OutputStreamConfig import OutputStreamCfg
    from xAODMetaDataCnv.InfileMetaDataConfig import SetupMetaDataForStreamCfg
    TRUTH1ItemList = TRUTH1SlimmingHelper.GetItemList()
    acc.merge(OutputStreamCfg(flags, "DAOD_TRUTH1", ItemList=TRUTH1ItemList))
    acc.merge(SetupMetaDataForStreamCfg(flags, "DAOD_TRUTH1", createMetadata=[MetadataCategory.CutFlowMetaData, MetadataCategory.TruthMetaData]))
 
    return acc