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// $Id: PhotonTools.cc,v 1.11 2011/07/27 15:17:37 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 "MitPhysics/Utils/interface/IsolationTools.h"
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#include "MitAna/DataTree/interface/StableData.h"
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#include <TFile.h>
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#include <TRandom3.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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void PhotonTools::ScalePhoton(Photon* p, Double_t scale) {
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if( !p ) return;
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FourVectorM mom = p->Mom();
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p->SetMom(scale*mom.X(), scale*mom.Y(), scale*mom.Z(), scale*mom.E());
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}
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void PhotonTools::SmearPhoton(Photon* p, TRandom3* rng, Double_t width, UInt_t iSeed) {
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if( !p ) return;
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if( !rng) return;
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if( width < 0.) return;
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rng->SetSeed(iSeed);
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FourVectorM mom = p->Mom();
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Double_t scale = rng->Gaus(1.,width);
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if( scale > 0)
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p->SetMom(scale*mom.X(), scale*mom.Y(), scale*mom.Z(), scale*mom.E());
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return;
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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() ) {
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//if( e->GsfTrk()->NExpectedHitsInner()==0 && e->GsfTrk()->Pt() > 2.5 ) {
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if( e->GsfTrk()->NExpectedHitsInner()==0 ) {
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double dEta = e->DeltaEtaSuperClusterTrackAtVtx();
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double dPhi = e->DeltaPhiSuperClusterTrackAtVtx();
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double dR = TMath::Sqrt(dEta*dEta+dPhi*dPhi);
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return dR;
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}
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}
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}
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return 99.;
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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->SCluster()->AbsEta()<1.5 ) {
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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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// shoud NEVER happen, but you never know...
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return kCiCNoCat;
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}
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//--------------------------------------------------------------------------------------------------
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const DecayParticle *PhotonTools::MatchedCiCConversion(const Photon *p, const DecayParticleCol *conversions,
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Double_t dPhiMin,
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Double_t dEtaMin,
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Double_t dRMin,
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bool print) {
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// if there are no conversons, return
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if ( !p || !conversions) return NULL;
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const DecayParticle *match = NULL;
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double minDeta = 999.;
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double minDphi = 999.;
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double minDR = 999.;
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double phPhi = p->SCluster()->Phi();
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double phEta = p->SCluster()->Eta();
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if(print)
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std::cout<<" --- conv match photon eta = "<<phEta<<" phi = "<<phPhi<<std::endl;
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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(print)
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std::cout<< " c "<<i+1<<" pt = "<<c->Pt()<<std::endl;
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if(c->Pt() < 1. ) continue; // is this refittedPirMomentum?
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//ThreeVector dirconvsc = ThreeVector(p->SCluster()->Point()) - c->Position();
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//ThreeVector dirconvsc = p->CaloPos() - c->Position();
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double convPhi = c->Phi();
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double convEta = c->Eta();
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const ThreeVector wrong(0,0,0);
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double Zvertex = c->DzCorrected(wrong);
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// ------------------ FROM GLOBE ----------------------
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//---Definitions for ECAL
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const float R_ECAL = 136.5;
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const float Z_Endcap = 328.0;
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const float etaBarrelEndcap = 1.479;
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//---ETA correction
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float Theta = 0.0 ;
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float ZEcal = R_ECAL*sinh(convEta)+Zvertex;
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if(ZEcal != 0.0) Theta = TMath::ATan(R_ECAL/ZEcal);
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if(Theta<0.0) Theta = Theta+M_PI;
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double fEta = - TMath::Log(TMath::Tan(0.5*Theta));
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if( fabs(fEta) > etaBarrelEndcap ) {
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float Zend = Z_Endcap ;
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if(convEta<0.0 ) Zend = -Zend ;
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float Zlen = Zend - Zvertex ;
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float RR = Zlen/TMath::SinH(convEta);
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Theta = TMath::ATan(RR/Zend);
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if(Theta<0.0) Theta = Theta+M_PI;
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fEta = -TMath::Log(TMath::Tan(0.5*Theta));
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}
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// ---------------------------------------------------
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if(print) {
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std::cout<<" eta bare = "<<convEta<<std::endl;
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std::cout<<" eta new = "<<fEta<<std::endl;
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std::cout<<" phi = "<<convPhi<<std::endl;
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}
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convEta = fEta;
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Double_t dphi = TMath::Abs(phPhi - convPhi);
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if(dphi > M_PI) dphi = 2.*M_PI-dphi;
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//Double_t deta = c->Eta()-dirconvsc.Eta();
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Double_t deta = TMath::Abs(convEta-phEta);
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Double_t dR = TMath::Sqrt(dphi*dphi+deta*deta);
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//if(dphi < minDphi && TMath::Abs(deta)<minDeta) {
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if(dR < minDR) {
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minDR = dR;
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minDphi = dphi;
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minDeta = TMath::Abs(deta);
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match = c;
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if(print)
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std::cout<<" conv "<<i+1<<" matches with dPhi = "<<minDphi<<" dEta = "<<minDeta<<std::endl;
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}
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}
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//if(minDphi < dPhiMin && minDeta < dEtaMin)
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if(minDR < dRMin)
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return match;
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else
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return NULL;
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}
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bool PhotonTools::PassCiCSelection(const Photon* ph, const Vertex* vtx,
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const TrackCol* trackCol,
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const ElectronCol* eleCol,
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const VertexCol* vtxCol,
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double rho, double ptmin,
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bool applyEleVeto,
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bool print, float* kin) {
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// these values are taken from the H2GGlobe code... (actually from Marco/s mail)
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float cic4_allcuts_temp_sublead[] = {
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3.8, 2.2, 1.77, 1.29,
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11.7, 3.4, 3.9, 1.84,
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3.5, 2.2, 2.3, 1.45,
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0.0106, 0.0097, 0.028, 0.027,
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0.082, 0.062, 0.065, 0.048,
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0.94, 0.36, 0.94, 0.32,
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1., 0.062, 0.97, 0.97,
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1.5, 1.5, 1.5, 1.5 }; // the last line is PixelmatchVeto and un-used
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// cut on Et instead of Pt???
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Bool_t isbarrel = ph->SCluster()->AbsEta()<1.5;
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// compute all relevant observables first
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double ecalIso3 = ph->EcalRecHitIsoDr03();
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double ecalIso4 = ph->EcalRecHitIsoDr04();
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double hcalIso4 = ph->HcalTowerSumEtDr04();
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unsigned int wVtxInd = 0;
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double trackIso1 = IsolationTools::CiCTrackIsolation(ph, vtx, 0.3, 0.02, 0.0, 0.0, 0.1, 1.0, trackCol);
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// track iso only
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double trackIso3 = IsolationTools::CiCTrackIsolation(ph, vtx, 0.3, 0.02, 0.0, 0.0, 0.1, 1.0, trackCol);
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// track iso worst vtx
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double trackIso2 = IsolationTools::CiCTrackIsolation(ph, vtx, 0.4, 0.02, 0.0, 0.0, 0.1, 1.0, trackCol, &wVtxInd, vtxCol);
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double combIso1 = ecalIso3+hcalIso4+trackIso1 - 0.17*rho;
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double combIso2 = ecalIso4+hcalIso4+trackIso2 - 0.52*rho;
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double tIso1 = (combIso1) *50./ph->Et();
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double tIso2 = (combIso2) *50./(ph->MomVtx(vtxCol->At(wVtxInd)->Position()).Pt());
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//double tIso2 = (combIso2) *50./ph->Et();
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double tIso3 = (trackIso3)*50./ph->Et();
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double covIEtaIEta =ph->CoviEtaiEta();
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double HoE = ph->HadOverEm();
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double R9 = ph->R9();
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double dRTrack = PhotonTools::ElectronVetoCiC(ph, eleCol);
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// check which category it is ...
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int _tCat = 1;
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if ( !isbarrel ) _tCat = 3;
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if ( R9 < 0.94 ) _tCat++;
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if(print) {
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std::cout<<" -------------------------- "<<std::endl;
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std::cout<<" photon Et = "<<ph->Et()<<std::endl;
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std::cout<<" Eta = "<<ph->SCluster()->Eta()<<std::endl;
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std::cout<<" HoE = "<<HoE<<std::endl;
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std::cout<<" R9 = "<<R9<<std::endl;
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std::cout<<" dR = "<<dRTrack<<std::endl;
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std::cout<<" iso1 = "<<tIso1<<std::endl;
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std::cout<<" iso2 = "<<tIso2<<std::endl;
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std::cout<<" iso3 = "<<tIso3<<std::endl;
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}
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if(kin) {
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kin[0] = tIso1;
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kin[1] = tIso2;
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kin[2] = tIso3;
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kin[3] = covIEtaIEta;
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kin[4] = HoE;
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kin[5] = R9;
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kin[6] = dRTrack;
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kin[7] = (float) ph->Pt();
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kin[8] = (float) ph->Eta();
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kin[9] = (float) ph->Phi();
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// iso quantities separate
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kin[10] = ecalIso3;
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kin[11] = ecalIso4;
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kin[12] = hcalIso4;
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kin[13] = trackIso1;
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kin[14] = trackIso2;
|
| 410 |
kin[15] = trackIso3;
|
| 411 |
|
| 412 |
kin[16] = (float) ph->Et();
|
| 413 |
kin[17] = (float) ph->E();
|
| 414 |
|
| 415 |
kin[18] = (float) ph->SCluster()->Eta();
|
| 416 |
kin[19] = (float) ph->SCluster()->Phi();
|
| 417 |
}
|
| 418 |
|
| 419 |
float passCuts = 1.;
|
| 420 |
|
| 421 |
if ( ph->Pt() <= ptmin ) passCuts = -1.;
|
| 422 |
|
| 423 |
// not needed anymore, do in pre-selection...
|
| 424 |
//if ( ph->SCluster()->AbsEta()>=2.5 || (ph->SCluster()->AbsEta()>=1.4442 && ph->SCluster()->AbsEta()<=1.566)) passCuts = -1.;
|
| 425 |
|
| 426 |
if( ! ( tIso1 < cic4_allcuts_temp_sublead[_tCat-1+0*4]
|
| 427 |
&& tIso2 < cic4_allcuts_temp_sublead[_tCat-1+1*4]
|
| 428 |
&& tIso3 < cic4_allcuts_temp_sublead[_tCat-1+2*4]
|
| 429 |
&& covIEtaIEta < cic4_allcuts_temp_sublead[_tCat-1+3*4]
|
| 430 |
&& HoE < cic4_allcuts_temp_sublead[_tCat-1+4*4]
|
| 431 |
&& R9 > cic4_allcuts_temp_sublead[_tCat-1+5*4]
|
| 432 |
&& ( dRTrack > cic4_allcuts_temp_sublead[_tCat-1+6*4] || !applyEleVeto ) ) ) passCuts = -1.;
|
| 433 |
|
| 434 |
if(kin) {
|
| 435 |
kin[20] = passCuts;
|
| 436 |
kin[21] = (float) _tCat;
|
| 437 |
}
|
| 438 |
|
| 439 |
if(passCuts > 0.) return true;
|
| 440 |
return false;
|
| 441 |
}
|
| 442 |
|
| 443 |
const MCParticle *PhotonTools::MatchMC(const Photon *ph, const MCParticleCol *c, Bool_t matchElectrons) {
|
| 444 |
|
| 445 |
for (UInt_t i=0; i<c->GetEntries(); ++i) {
|
| 446 |
const MCParticle *p = c->At(i);
|
| 447 |
// if (p->IsGenerated() && p->AbsPdgId()==11 && p->Mother()->AbsPdgId()==23) {
|
| 448 |
// printf("pdgid = %i, status = %i, pt = %5f\n",p->PdgId(),p->Status(),p->Pt());
|
| 449 |
// }
|
| 450 |
if (matchElectrons && p->AbsPdgId()==11 && p->IsGenerated() && p->Status()==3 && MathUtils::DeltaR(*ph,*p) < 0.3 && p->Mother() && (p->Mother()->AbsPdgId()==23 || p->Mother()->AbsPdgId()==24 || p->Mother()->AbsPdgId()==22)) {
|
| 451 |
return p;
|
| 452 |
}
|
| 453 |
if ( p->AbsPdgId()==22 && p->IsGenerated() && MathUtils::DeltaR(*ph,*p) < 0.3 && p->Mother() && (p->Mother()->AbsPdgId()==25 || p->Mother()->AbsPdgId()<=21) ) {
|
| 454 |
return p;
|
| 455 |
}
|
| 456 |
}
|
| 457 |
return 0;
|
| 458 |
}
|
| 459 |
|
| 460 |
PhotonTools::DiphotonR9EtaPtCats PhotonTools::DiphotonR9EtaPtCat(const Photon *p1, const Photon *p2) {
|
| 461 |
|
| 462 |
PhotonTools::CiCBaseLineCats cat1 = CiCBaseLineCat(p1);
|
| 463 |
PhotonTools::CiCBaseLineCats cat2 = CiCBaseLineCat(p2);
|
| 464 |
|
| 465 |
PhotonTools::DiphotonR9EtaPtCats evtcat = PhotonTools::kOctCat0;
|
| 466 |
|
| 467 |
bool ph1IsEB = (cat1 == PhotonTools::kCiCCat1 || cat1 == PhotonTools::kCiCCat2);
|
| 468 |
bool ph2IsEB = (cat2 == PhotonTools::kCiCCat1 || cat2 == PhotonTools::kCiCCat2);
|
| 469 |
|
| 470 |
bool ph1IsHR9 = (cat1 == PhotonTools::kCiCCat1 || cat1 == PhotonTools::kCiCCat3);
|
| 471 |
bool ph2IsHR9 = (cat2 == PhotonTools::kCiCCat1 || cat2 == PhotonTools::kCiCCat3);
|
| 472 |
|
| 473 |
if( ph1IsEB && ph2IsEB )
|
| 474 |
evtcat = ( ph1IsHR9 && ph2IsHR9 ? PhotonTools::kOctCat0 : PhotonTools::kOctCat1);
|
| 475 |
else
|
| 476 |
evtcat = ( ph1IsHR9 && ph2IsHR9 ? PhotonTools::kOctCat2 : PhotonTools::kOctCat3);
|
| 477 |
|
| 478 |
float ptgg = (p1->Mom()+p2->Mom()).Pt();
|
| 479 |
if (ptgg<40.0) evtcat = PhotonTools::DiphotonR9EtaPtCats(evtcat + 4);
|
| 480 |
|
| 481 |
|
| 482 |
return evtcat;
|
| 483 |
} |
