File indexing completed on 2024-04-06 12:24:56
0001 #include "RecoEgamma/EgammaIsolationAlgos/interface/HcalPFClusterIsolation.h"
0002
0003 #include "DataFormats/RecoCandidate/interface/RecoEcalCandidate.h"
0004 #include "DataFormats/RecoCandidate/interface/RecoChargedCandidate.h"
0005 #include "DataFormats/EgammaCandidates/interface/GsfElectron.h"
0006 #include "DataFormats/EgammaCandidates/interface/Photon.h"
0007
0008 #include <DataFormats/Math/interface/deltaR.h>
0009
0010 template <typename T1>
0011 HcalPFClusterIsolation<T1>::HcalPFClusterIsolation(double drMax,
0012 double drVetoBarrel,
0013 double drVetoEndcap,
0014 double etaStripBarrel,
0015 double etaStripEndcap,
0016 double energyBarrel,
0017 double energyEndcap,
0018 bool useEt)
0019 : drMax_(drMax),
0020 drVetoBarrel_(drVetoBarrel),
0021 drVetoEndcap_(drVetoEndcap),
0022 etaStripBarrel_(etaStripBarrel),
0023 etaStripEndcap_(etaStripEndcap),
0024 energyBarrel_(energyBarrel),
0025 energyEndcap_(energyEndcap),
0026 useEt_(useEt) {}
0027
0028 template <typename T1>
0029 HcalPFClusterIsolation<T1>::~HcalPFClusterIsolation() {}
0030
0031 template <typename T1>
0032 double HcalPFClusterIsolation<T1>::getSum(const T1 cand,
0033 const std::vector<edm::Handle<reco::PFClusterCollection>>& clusterHandles) {
0034 double etSum = 0.;
0035 double candAbsEta = std::abs(cand.eta());
0036
0037 float etaStrip = 0;
0038 float dRVeto = 0;
0039 if (candAbsEta < 1.479) {
0040 dRVeto = drVetoBarrel_;
0041 etaStrip = etaStripBarrel_;
0042 } else {
0043 dRVeto = drVetoEndcap_;
0044 etaStrip = etaStripEndcap_;
0045 }
0046
0047 for (unsigned int nHandle = 0; nHandle < clusterHandles.size(); nHandle++) {
0048 for (unsigned i = 0; i < clusterHandles[nHandle]->size(); i++) {
0049 const reco::PFClusterRef pfclu(clusterHandles[nHandle], i);
0050
0051 if (candAbsEta < 1.479) {
0052 if (std::abs(pfclu->pt()) < energyBarrel_)
0053 continue;
0054 } else {
0055 if (std::abs(pfclu->energy()) < energyEndcap_)
0056 continue;
0057 }
0058
0059 float dEta = std::abs(cand.eta() - pfclu->eta());
0060 if (dEta < etaStrip)
0061 continue;
0062
0063 float dR2 = deltaR2(cand.eta(), cand.phi(), pfclu->eta(), pfclu->phi());
0064 if (dR2 > (drMax_ * drMax_) || dR2 < (dRVeto * dRVeto))
0065 continue;
0066
0067 if (useEt_)
0068 etSum += pfclu->pt();
0069 else
0070 etSum += pfclu->energy();
0071 }
0072 }
0073
0074 return etSum;
0075 }
0076
0077 template <typename T1>
0078 double HcalPFClusterIsolation<T1>::getSum(T1Ref ref,
0079 const std::vector<edm::Handle<reco::PFClusterCollection>>& clusterHandles) {
0080 return getSum(*ref, clusterHandles);
0081 }
0082
0083 template class HcalPFClusterIsolation<reco::RecoEcalCandidate>;
0084 template class HcalPFClusterIsolation<reco::RecoChargedCandidate>;
0085 template class HcalPFClusterIsolation<reco::Photon>;
0086 template class HcalPFClusterIsolation<reco::GsfElectron>;
