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#include "../interface/PhotonAnalyzer.h"
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using namespace std;
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using namespace reco;
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using namespace edm;
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PhotonAnalyzer::PhotonAnalyzer(const edm::ParameterSet& producersNames, const edm::ParameterSet& myConfig, int verbosity):verbosity_(verbosity), iconvtrack_(0)
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{
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dataType_ = producersNames.getUntrackedParameter<string>("dataType","unknown");
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photonProducer_ = producersNames.getParameter<edm::InputTag>("photonProducer");
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doPhotonConversion_ = myConfig.getUntrackedParameter<bool>("doPhotonConversion", false);
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doVertexCorrection_ = myConfig.getUntrackedParameter<bool>("doPhotonVertexCorrection", false);
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useMC_ = myConfig.getUntrackedParameter<bool>("doMuonMC", false);
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allowMissingCollection_ = producersNames.getUntrackedParameter<bool>("allowMissingCollection", false);
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}
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PhotonAnalyzer::~PhotonAnalyzer()
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{
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}
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bool PhotonAnalyzer::process(const edm::Event& iEvent, const edm::EventSetup& iSetup, TRootEvent* rootEvent, TClonesArray* rootPhotons, TClonesArray* conversionTracks, ConversionLikelihoodCalculator* convLikelihoodCalculator, EcalClusterLazyTools* lazyTools)
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{
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unsigned int nPhotons=0;
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bool doPhotonID = true;
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edm::Handle< reco::PhotonCollection > recoPhotons;
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const edm::ValueMap<Bool_t> *loosePhotonIdMap = 0;
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const edm::ValueMap<Bool_t> *tightPhotonIdMap = 0;
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if( dataType_=="RECO" )
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{
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try
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{
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iEvent.getByLabel(photonProducer_, recoPhotons);
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nPhotons = recoPhotons->size();
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}
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catch (cms::Exception& exception)
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{
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if ( !allowMissingCollection_ )
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{
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cout << " ##### ERROR IN PhotonAnalyzer::process => reco::Photon collection is missing #####"<<endl;
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throw exception;
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}
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if(verbosity_>1) cout << " ===> No reco::Photon collection, skip photons info" << endl;
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return false;
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}
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try
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{
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edm::Handle< edm::ValueMap<Bool_t> > loosePhotonId;
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iEvent.getByLabel("PhotonIDProd", "PhotonCutBasedIDLoose", loosePhotonId);
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loosePhotonIdMap = loosePhotonId.product();
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}
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catch (cms::Exception& exception)
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{
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if ( !allowMissingCollection_ )
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{
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cout << " ##### ERROR IN PhotonAnalyzer::process => PhotonCutBasedIDLoose is missing #####"<<endl;
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throw exception;
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}
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if(verbosity_>1) cout << " ===> No PhotonCutBasedIDLoose collection, skip photonID info" << endl;
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doPhotonID = false;
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}
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try
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{
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edm::Handle< edm::ValueMap<Bool_t> > tightPhotonId;
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iEvent.getByLabel("PhotonIDProd", "PhotonCutBasedIDTight", tightPhotonId);
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tightPhotonIdMap = tightPhotonId.product();
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}
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catch (cms::Exception& exception)
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{
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if ( !allowMissingCollection_ )
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{
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cout << " ##### ERROR IN PhotonAnalyzer::process => PhotonCutBasedIDTight is missing #####"<<endl;
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throw exception;
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}
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if(verbosity_>1) cout << " ===> No PhotonCutBasedIDTight collection, skip photonID info" << endl;
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doPhotonID = false;
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}
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}
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edm::Handle < std::vector <pat::Photon> > patPhotons;
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if( dataType_=="PAT" )
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{
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try
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{
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iEvent.getByLabel(photonProducer_, patPhotons);
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nPhotons = patPhotons->size();
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}
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catch (cms::Exception& exception)
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{
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if ( !allowMissingCollection_ )
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{
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cout << " ##### ERROR IN PhotonAnalyzer::process => pat::Photon collection is missing #####"<<endl;
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throw exception;
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}
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if(verbosity_>1) cout << " ===> No pat::Photon collection, skip photons info" << endl;
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return false;
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}
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}
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if(verbosity_>1) std::cout << " Number of photons = " << nPhotons << " Label: " << photonProducer_.label() << " Instance: " << photonProducer_.instance() << std::endl;
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// TODO - add Pi0Disc... not implemented in 2.X.X
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//edm::Handle<reco::PhotonPi0DiscriminatorAssociationMap> pi0map;
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//iEvent.getByLabel("piZeroDiscriminators","PhotonPi0DiscriminatorAssociationMap", pi0map);
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//reco::PhotonPi0DiscriminatorAssociationMap::const_iterator pi0mapIter;
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//Double_t pi0nn;
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for (unsigned int j=0; j<nPhotons; j++)
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{
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const reco::Photon* photon = 0;
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if( dataType_=="RECO" ) photon = &((*recoPhotons)[j]);
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if( dataType_=="PAT" ) photon = (const reco::Photon*) ( & ((*patPhotons)[j]) );
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TRootPhoton localPhoton(
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photon->px()
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,photon->py()
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,photon->pz()
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,photon->energy()
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,photon->vx()
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,photon->vy()
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,photon->vz()
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,photon->pdgId()
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,photon->charge()
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);
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// Variables from reco::Photon
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localPhoton.setCaloPosition( photon->caloPosition().X(), photon->caloPosition().Y(), photon->caloPosition().Z() );
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localPhoton.setHoE(photon->hadronicOverEm());
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localPhoton.setHasPixelSeed( photon->hasPixelSeed() );
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// Variables from reco::SuperCluster
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reco::SuperClusterRef superCluster = photon->superCluster();
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if ( superCluster.isNonnull() )
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{
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localPhoton.setNbClusters(superCluster->clustersSize());
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localPhoton.setSuperClusterRawEnergy( superCluster->rawEnergy() );
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localPhoton.setPreshowerEnergy(superCluster->preshowerEnergy());
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}
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// Cluster Shape variables
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// need reco::SuperCluster and reco::CaloCluster
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if ( superCluster.isNonnull() )
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{
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reco::CaloClusterPtr seedCaloCluster = superCluster->seed();
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if ( seedCaloCluster.isNonnull() ) localPhoton.setClusterAlgo(seedCaloCluster->algo());
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// dR of the cone centered on the reco::Photon and containing all its basic clusters constituents
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bool atLeastOneBC = false;
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Float_t caloConeSize = 0.;
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for (reco::CaloCluster_iterator caloCluster = (*superCluster).clustersBegin(); caloCluster != (*superCluster).clustersEnd(); ++caloCluster )
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{
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atLeastOneBC = true;
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// Take SC position which is not vertex corrected
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TVector3 scPosition( superCluster->position().x(), superCluster->position().y(), superCluster->position().z() );
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Float_t dR = scPosition.DeltaR( TVector3( (*caloCluster)->position().x(), (*caloCluster)->position().y(), (*caloCluster)->position().z() ) );
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if (dR > caloConeSize) caloConeSize = dR;
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}
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if (! atLeastOneBC) caloConeSize = -999.;
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localPhoton.setCaloConeSize(caloConeSize);
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// need reduced Ecal RecHits Collections for EcalClusterLazyTools
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if ( seedCaloCluster.isNonnull() && lazyTools != 0 )
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{
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localPhoton.setE2x2(lazyTools->e2x2(*seedCaloCluster));
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localPhoton.setE3x3( lazyTools->e3x3(*seedCaloCluster) );
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localPhoton.setE5x5( lazyTools->e5x5(*seedCaloCluster) );
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localPhoton.setEMax( lazyTools->eMax(*seedCaloCluster) );
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}
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}
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// Photon conversions
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// Variables from reco::Conversion
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if( doPhotonConversion_ )
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{
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// If more than one associated convertedPhotons is found, then
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// if nTracks=2, select the convertedPhoton with greatest Likelihood value using Ted's weights file
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// if nTracks=1, select the convertedPhoton with E/p closest to 1
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double eoverp;
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double best_eoverp = 999999.;
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double likely;
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double best_likely = -1.;
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int best_iconv = -1;
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int best_iconv_likely = -1;
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int best_iconv_eoverp = -1;
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reco::ConversionRefVector conversions = photon->conversions();
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for (unsigned int iconv=0; iconv<conversions.size(); iconv++)
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{
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if(verbosity_>4) cout << " ["<< setw(3) << iconv << "] Conversion - "
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<< " conv_vertex (x,y,z)=(" << conversions[iconv]->conversionVertex().x()
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<< "," << conversions[iconv]->conversionVertex().y()
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<< "," << conversions[iconv]->conversionVertex().z()
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<< ") isConverted=" << conversions[iconv]->isConverted()
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<< " nTracks=" << conversions[iconv]->nTracks()
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<< " primary_vtx_z=" << conversions[iconv]->zOfPrimaryVertexFromTracks()
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<< " inv_mass=" << conversions[iconv]->pairInvariantMass()
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<< " E/p=" << conversions[iconv]->EoverP()
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<< " cotanTheta=" << conversions[iconv]->pairCotThetaSeparation()
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<< " likely=" << convLikelihoodCalculator->calculateLikelihood(conversions[iconv])
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<< endl;
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likely = convLikelihoodCalculator->calculateLikelihood(conversions[iconv]);
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if ( likely>best_likely )
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{
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best_iconv_likely = iconv;
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best_likely = likely;
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}
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eoverp = conversions[iconv]->EoverP();
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if ( abs(eoverp-1)<abs(best_eoverp-1) )
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{
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best_iconv_eoverp = iconv;
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best_eoverp = eoverp;
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}
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}
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best_iconv = (best_iconv_likely==-1 ? best_iconv_eoverp : best_iconv_likely);
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// Update Photon object with conversion infos
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if ( best_iconv != -1 )
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{
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if(verbosity_>4) cout
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<< " ===> TRootPhoton[" << j << "] associated to Conversion[" << best_iconv
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<< "] with E/p=" << conversions[best_iconv]->EoverP()
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<< " likely=" << convLikelihoodCalculator->calculateLikelihood(conversions[best_iconv])
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<< endl;
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localPhoton.setConvNTracks( conversions[best_iconv]->nTracks() );
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localPhoton.setConvEoverP( conversions[best_iconv]->EoverP() );
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localPhoton.setConvMass( conversions[best_iconv]->pairInvariantMass() );
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localPhoton.setConvCotanTheta( conversions[best_iconv]->pairCotThetaSeparation() );
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localPhoton.setConvLikely( convLikelihoodCalculator->calculateLikelihood(conversions[best_iconv]) );
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localPhoton.setConvVertex( conversions[best_iconv]->conversionVertex().x(), conversions[best_iconv]->conversionVertex().y(), conversions[best_iconv]->conversionVertex().z() );
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std::vector<math::XYZPoint> impactVector = conversions[best_iconv]->ecalImpactPosition();
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if ( impactVector.size()>0 ) localPhoton.setConvEcalImpactPosition1( impactVector.at(0).x(), impactVector.at(0).y(), impactVector.at(0).z() );
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if ( impactVector.size()>1 ) localPhoton.setConvEcalImpactPosition2( impactVector.at(1).x(), impactVector.at(1).y(), impactVector.at(1).z() );
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if ( conversionTracks!=0 ) // Check branch is activated
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{
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if ( conversions[best_iconv]->nTracks()>0 )
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{
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std::vector<reco::TrackRef> tracks = conversions[best_iconv]->tracks();
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reco::TrackRef tk1 = tracks.at(0);
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const reco::HitPattern& hit1 = tk1->hitPattern();
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new( (*conversionTracks)[iconvtrack_] ) TRootTrack( tk1->px(), tk1->py(), tk1->pz(), tk1->p(), tk1->vx(), tk1->vy(), tk1->vz(), 0, tk1->charge()
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,hit1.pixelLayersWithMeasurement(), hit1.stripLayersWithMeasurement(), tk1->chi2(), tk1->d0(), tk1->d0Error(), tk1->dz(), tk1->dzError() );
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localPhoton.setConvIndexTrack1(iconvtrack_);
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localPhoton.setConvTrack1((*conversionTracks)[iconvtrack_]);
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iconvtrack_++;
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if ( conversions[best_iconv]->nTracks()>1 )
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{
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reco::TrackRef tk2 = tracks.at(1);
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const reco::HitPattern& hit2 = tk2->hitPattern();
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new( (*conversionTracks)[iconvtrack_] ) TRootTrack( tk2->px(), tk2->py(), tk2->pz(), tk2->p(), tk2->vx(), tk2->vy(), tk2->vz(), 0, tk2->charge()
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,hit2.pixelLayersWithMeasurement(), hit2.stripLayersWithMeasurement(), tk2->chi2(), tk2->d0(), tk2->d0Error(), tk2->dz(), tk2->dzError() );
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localPhoton.setConvIndexTrack2(iconvtrack_);
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localPhoton.setConvTrack2((*conversionTracks)[iconvtrack_]);
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iconvtrack_++;
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}
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}
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}
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}
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}
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// Photon isolation calculated by PhotonID
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// now embeded in reco::Photon
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localPhoton.setIsolation(
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photon->ecalRecHitSumEtConeDR03()
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,photon->hcalTowerSumEtConeDR03()
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,photon->trkSumPtSolidConeDR03()
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,photon->trkSumPtHollowConeDR03()
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,photon->nTrkSolidConeDR03()
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,photon->nTrkHollowConeDR03()
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);
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if( dataType_=="RECO" )
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{
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// Some specific methods requiring RECO / AOD format
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// Do association to genParticle ?
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if (doPhotonID)
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{
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// Photon ID
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// need corresponding PhotonID ValueMap
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edm::Ref<reco::PhotonCollection> photonRef(recoPhotons,j);
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Bool_t looseID = (*loosePhotonIdMap)[photonRef];
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Bool_t tightID = (*tightPhotonIdMap)[photonRef];
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localPhoton.setBitsID(
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looseID
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,tightID
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,photon->isEB()
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,photon->isEE()
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,photon->isEBGap()
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,photon->isEEGap()
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,photon->isEBEEGap()
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);
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}
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/*
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if(verbosity_>4) std::cout << "seed E5x5=" << lazyTools->e5x5( *seedCaloCluster )
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//<< " pi0NN=" << pi0nn
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<< " photonID->isolationEcalRecHit()=" << photonID->isolationEcalRecHit()
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<< " photonID->r9()=" << photonID->r9()
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<< " e3x3 / SC->energy()=" << ( lazyTools->e3x3( *seedCaloCluster ) / photon->superCluster()->energy() )
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<< " e3x3 / SC->rawEnergy()=" << ( lazyTools->e3x3( *seedCaloCluster ) / photon->superCluster()->rawEnergy() )
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<< " sc->pos=" << photon->superCluster()->position().X() << " , " << photon->superCluster()->position().Y() << " , " << photon->superCluster()->position().Z()
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<< " photon->caloPos=" << photon->caloPosition().X() << " , " << photon->caloPosition().Y() << " , " << photon->caloPosition().Z() << std::endl;
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*/
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}
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if( dataType_=="PAT" )
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{
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// Some specific methods to pat::Photon
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const pat::Photon *patPhoton = dynamic_cast<const pat::Photon*>(&*photon);
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// Photon ID
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// Use the PhotonID pairs embeded in pat::Photon
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Bool_t looseID = false;
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Bool_t tightID = false;
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if (patPhoton->isPhotonIDAvailable("PhotonCutBasedIDLoose")) looseID = patPhoton->photonID("PhotonCutBasedIDLoose");
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if (patPhoton->isPhotonIDAvailable("PhotonCutBasedIDTight")) tightID = patPhoton->photonID("PhotonCutBasedIDTight");
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localPhoton.setBitsID(
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looseID
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,tightID
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,patPhoton->isEB()
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,patPhoton->isEE()
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,patPhoton->isEBGap()
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,patPhoton->isEEGap()
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,patPhoton->isEBEEGap()
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);
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if(useMC_)
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{
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// MC truth associator index
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if ((patPhoton->genParticleRef()).isNonnull()) {
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localPhoton.setGenParticleIndex((patPhoton->genParticleRef()).index());
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} else {
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localPhoton.setGenParticleIndex(-1);
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}
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}
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}
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// FIXME - Add pi0nn
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//pi0mapIter = pi0map->find(edm::Ref<reco::PhotonCollection>(recoPhotons,iPhoton));
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//pi0nn = ( pi0mapIter == pi0map->end() ? -1 : pi0mapIter->val );
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//localPhoton.setPi0nn( pi0nn );
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// Vertex correction to photon - Assume photon is coming from primary vertex
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if( doVertexCorrection_)
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{
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if(verbosity_>3) cout << " Before vertex correction ["<< setw(3) << j << "] " << localPhoton << endl;
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| 371 |
if( rootEvent->primaryVertex()!=0 )
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{
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TVector3 vertex( rootEvent->primaryVertex()->x(), rootEvent->primaryVertex()->y(), rootEvent->primaryVertex()->z() );
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localPhoton.setVertex(vertex);
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}
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else
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{
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| 378 |
cout << " PhotonAnalyzer - NO SELECTED PRIMARY VERTEX FOUND !!!" << endl;
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| 379 |
}
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}
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| 381 |
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| 382 |
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// Stock new TRootPhoton in TCloneArray
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| 384 |
new( (*rootPhotons)[j] ) TRootPhoton(localPhoton);
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| 385 |
if(verbosity_>2) cout << " ["<< setw(3) << j << "] " << localPhoton << endl;
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}
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return true;
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}
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