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// $Id: PhotonTools.cc,v 1.3 2011/04/21 15:07:40 bendavid Exp $
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#include "MitPhysics/Utils/interface/PhotonTools.h"
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#include "MitPhysics/Utils/interface/ElectronTools.h"
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#include "MitAna/DataTree/interface/StableData.h"
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#include <TFile.h>
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ClassImp(mithep::PhotonTools)
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using namespace mithep;
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//--------------------------------------------------------------------------------------------------
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PhotonTools::PhotonTools()
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{
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// Constructor.
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}
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//--------------------------------------------------------------------------------------------------
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Bool_t PhotonTools::PassConversionId(const Photon *p, const DecayParticle *c) {
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if (!c) return kTRUE;
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ThreeVector dirconvsc = ThreeVector(p->SCluster()->Point()) - c->Position();
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Double_t deta = c->Eta()-dirconvsc.Eta();
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Double_t dphi = MathUtils::DeltaPhi(c->Phi(),dirconvsc.Phi());
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Double_t eoverp = p->SCluster()->Energy()/c->P();
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if (p->IsEB() && eoverp>2.0) return kFALSE;
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if (p->IsEE() && eoverp>3.0) return kFALSE;
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if (p->IsEE() && TMath::Abs(deta)>0.01) return kFALSE;
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if (p->IsEE() && TMath::Abs(dphi)>0.01) return kFALSE;
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return kTRUE;
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}
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//--------------------------------------------------------------------------------------------------
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Bool_t PhotonTools::PassElectronVeto(const Photon *p, const ElectronCol *els) {
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Bool_t pass = kTRUE;
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for (UInt_t i=0; i<els->GetEntries(); ++i) {
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const Electron *e = els->At(i);
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if (e->SCluster()==p->SCluster() && e->GsfTrk()->NExpectedHitsInner()==0) {
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pass = kFALSE;
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}
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}
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return pass;
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}
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//--------------------------------------------------------------------------------------------------
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Double_t PhotonTools::ElectronVetoCiC(const Photon *p, const ElectronCol *els) {
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for (UInt_t i=0; i<els->GetEntries(); ++i) {
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const Electron *e = els->At(i);
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if (e->SCluster()==p->SCluster() && e->GsfTrk()->NExpectedHitsInner()==0)
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return sqrt(pow(e->DeltaEtaSuperClusterTrackAtVtx(),2)+pow(e->DeltaPhiSuperClusterTrackAtVtx(),2));
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}
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return -100.;
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}
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//--------------------------------------------------------------------------------------------------
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Bool_t PhotonTools::PassElectronVetoConvRecovery(const Photon *p, const ElectronCol *els, const DecayParticleCol *conversions, const BaseVertex *v) {
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Bool_t pass = kTRUE;
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for (UInt_t i=0; i<els->GetEntries(); ++i) {
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const Electron *e = els->At(i);
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if (e->SCluster()==p->SCluster() && e->GsfTrk()->NExpectedHitsInner()==0 && ElectronTools::PassConversionFilter(e, conversions,
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v, 0, 1e-6, 2.0, kFALSE, kFALSE) ) {
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pass = kFALSE;
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}
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}
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return pass;
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}
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//--------------------------------------------------------------------------------------------------
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Bool_t PhotonTools::PassTriggerMatching(const Photon *p, const TriggerObjectCol *trigobjs)
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{
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for (UInt_t i=0; i<trigobjs->GetEntries(); ++i) {
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const TriggerObject *trigobj = trigobjs->At(i);
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if (trigobj->TriggerType()==TriggerObject::TriggerCluster || trigobj->TriggerType()==TriggerObject::TriggerElectron || trigobj->TriggerType()==TriggerObject::TriggerPhoton) {
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if (MathUtils::DeltaR(p->SCluster(),trigobj)<0.3) {
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return kTRUE;
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}
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}
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}
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return kFALSE;
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}
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//--------------------------------------------------------------------------------------------------
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const DecayParticle *PhotonTools::MatchedConversion(const Photon *p, const DecayParticleCol *conversions,
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const BaseVertex *vtx, Int_t nWrongHitsMax, Double_t probMin,
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Double_t lxyMin, Double_t dRMin) {
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const DecayParticle *match = 0;
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Double_t rhosmallest = 999.;
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for (UInt_t i=0; i<conversions->GetEntries(); ++i) {
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const DecayParticle *c = conversions->At(i);
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ThreeVector dirconvsc = ThreeVector(p->SCluster()->Point()) - c->Position();
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Double_t dr = MathUtils::DeltaR(*c,dirconvsc);
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Double_t rho = c->Position().Rho();
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if (dr<dRMin && rho<rhosmallest && c->Prob()>probMin && c->LxyCorrected(vtx)>lxyMin) {
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Int_t nhb1 = dynamic_cast<const StableData*>(c->DaughterDat(0))->NHitsBeforeVtx();
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Int_t nhb2 = dynamic_cast<const StableData*>(c->DaughterDat(1))->NHitsBeforeVtx();
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if (TMath::Max(nhb1,nhb2)<=nWrongHitsMax) {
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rhosmallest = rho;
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match = c;
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}
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}
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}
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return match;
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}
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//--------------------------------------------------------------------------------------------------
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const DecayParticle *PhotonTools::MatchedConversion(const Track *t, const DecayParticleCol *conversions,
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const BaseVertex *vtx, Int_t nWrongHitsMax, Double_t probMin,
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Double_t lxyMin) {
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for (UInt_t i=0; i<conversions->GetEntries(); ++i) {
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const DecayParticle *c = conversions->At(i);
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if (c->Prob()>probMin && c->LxyCorrected(vtx)>lxyMin) {
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Int_t nhb1 = dynamic_cast<const StableData*>(c->DaughterDat(0))->NHitsBeforeVtx();
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Int_t nhb2 = dynamic_cast<const StableData*>(c->DaughterDat(1))->NHitsBeforeVtx();
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if (TMath::Max(nhb1,nhb2)<=nWrongHitsMax) {
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const Track *ct1 = dynamic_cast<const ChargedParticle*>(c->Daughter(0))->Trk();
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const Track *ct2 = dynamic_cast<const ChargedParticle*>(c->Daughter(1))->Trk();
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if (t==ct1 || t==ct2) return c;
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}
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}
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}
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return 0;
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}
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PhotonTools::DiphotonR9EtaCats PhotonTools::DiphotonR9EtaCat(const Photon *p1, const Photon *p2) {
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if (p1->IsEB() && p2->IsEB()) {
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if (p1->R9()>0.93 && p2->R9()>0.93) return kCat1;
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else return kCat2;
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}
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else {
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if (p1->R9()>0.93 && p2->R9()>0.93) return kCat3;
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else return kCat4;
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}
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}
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PhotonTools::DiphotonR9EtaConversionCats PhotonTools::DiphotonR9EtaConversionCat(const Photon *p1, const Photon *p2, const DecayParticleCol *conversions, const BaseVertex *v) {
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const DecayParticle *conv1 = MatchedConversion(p1, conversions, v);
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const DecayParticle *conv2 = MatchedConversion(p2, conversions, v);
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if (p1->IsEB() && p2->IsEB()) {
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if (p1->R9()>0.93 && p2->R9()>0.93) return kNewCat1;
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else if (conv1||conv2) return kNewCat2;
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else return kNewCat3;
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}
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else {
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if (p1->R9()>0.93 && p2->R9()>0.93) return kNewCat4;
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else if (conv1||conv2) return kNewCat5;
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else return kNewCat6;
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}
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}
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PhotonTools::CiCBaseLineCats PhotonTools::CiCBaseLineCat(const Photon *p) {
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if( p->IsEB() ) {
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if ( p->R9() > 0.94 ) return kCiCCat1;
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else return kCiCCat2;
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} else {
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if ( p->R9() > 0.94 ) return kCiCCat3;
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else return kCiCCat4;
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}
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}
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