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// $Id: PhotonIDMod.cc,v 1.19 2011/04/12 22:14:21 bendavid Exp $
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#include "MitPhysics/Mods/interface/PhotonIDMod.h"
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#include "MitAna/DataTree/interface/PhotonCol.h"
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#include "MitPhysics/Init/interface/ModNames.h"
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#include "MitPhysics/Utils/interface/IsolationTools.h"
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#include "MitPhysics/Utils/interface/PhotonTools.h"
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using namespace mithep;
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ClassImp(mithep::PhotonIDMod)
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//--------------------------------------------------------------------------------------------------
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PhotonIDMod::PhotonIDMod(const char *name, const char *title) :
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BaseMod(name,title),
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fPhotonBranchName (Names::gkPhotonBrn),
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fGoodPhotonsName (ModNames::gkGoodPhotonsName),
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fTrackBranchName (Names::gkTrackBrn),
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fBeamspotBranchName(Names::gkBeamSpotBrn),
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fPileUpDenName (Names::gkPileupEnergyDensityBrn),
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fConversionName ("MergedConversions"),
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fElectronName ("Electrons"),
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fPhotonIDType("Custom"),
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fPhotonIsoType("Custom"),
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fPhotonPtMin(15.0),
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fHadOverEmMax(0.02),
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fApplySpikeRemoval(kFALSE),
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fApplyPixelSeed(kTRUE),
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fApplyElectronVeto(kFALSE),
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fApplyElectronVetoConvRecovery(kFALSE),
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fApplyConversionId(kFALSE),
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fApplyTriggerMatching(kFALSE),
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fPhotonR9Min(0.5),
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fPhIdType(kIdUndef),
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fPhIsoType(kIsoUndef),
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fFiduciality(kTRUE),
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fEtaWidthEB(0.01),
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fEtaWidthEE(0.028),
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fAbsEtaMax(2.5),
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fApplyR9Min(kFALSE),
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fEffAreaEcalEE(0.071),
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fEffAreaHcalEE(0.095),
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fEffAreaTrackEE(0.269),
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fEffAreaEcalEB(0.162),
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fEffAreaHcalEB(0.042),
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fEffAreaTrackEB(0.317),
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fPhotons(0),
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fTracks(0),
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fBeamspots(0),
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fPileUpDen(0),
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fConversions(0),
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fElectrons(0)
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{
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// Constructor.
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}
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//--------------------------------------------------------------------------------------------------
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void PhotonIDMod::Process()
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{
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// Process entries of the tree.
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LoadEventObject(fPhotonBranchName, fPhotons);
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const BaseVertex *bsp = NULL;
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Double_t _tRho = -1.;
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const TriggerObjectCol *trigObjs = 0;
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if (fPhotons->GetEntries()>0) {
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LoadEventObject(fTrackBranchName, fTracks);
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LoadEventObject(fBeamspotBranchName, fBeamspots);
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LoadEventObject(fPileUpDenName, fPileUpDen);
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LoadEventObject(fConversionName, fConversions);
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LoadEventObject(fElectronName, fElectrons);
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if(fBeamspots->GetEntries() > 0)
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bsp = fBeamspots->At(0);
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if(fPileUpDen->GetEntries() > 0)
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_tRho = (Double_t) fPileUpDen->At(0)->Rho();
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//get trigger object collection if trigger matching is enabled
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if (fApplyTriggerMatching) {
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trigObjs = GetHLTObjects(fTrigObjectsName);
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}
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}
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PhotonOArr *GoodPhotons = new PhotonOArr;
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GoodPhotons->SetName(fGoodPhotonsName);
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for (UInt_t i=0; i<fPhotons->GetEntries(); ++i) {
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const Photon *ph = fPhotons->At(i);
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if (ph->Pt() <= fPhotonPtMin)
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continue;
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Bool_t passSpikeRemovalFilter = kTRUE;
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if (ph->SCluster() && ph->SCluster()->Seed()) {
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if(ph->SCluster()->Seed()->Energy() > 5.0 &&
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ph->SCluster()->Seed()->EMax() / ph->SCluster()->Seed()->E3x3() > 0.95
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) {
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passSpikeRemovalFilter = kFALSE;
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}
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}
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// For Now Only use the EMax/E3x3 prescription.
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//if(ph->SCluster()->Seed()->Energy() > 5.0 &&
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// (1 - (ph->SCluster()->Seed()->E1x3() + ph->SCluster()->Seed()->E3x1() - 2*ph->SCluster()->Seed()->EMax())) > 0.95
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// ) {
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// passSpikeRemovalFilter = kFALSE;
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//}
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if (fApplySpikeRemoval && !passSpikeRemovalFilter) continue;
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if (ph->HadOverEm() >= fHadOverEmMax)
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continue;
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if (fApplyPixelSeed == kTRUE &&
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ph->HasPixelSeed() == kTRUE)
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continue;
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if (fApplyElectronVeto && !PhotonTools::PassElectronVeto(ph,fElectrons) ) continue;
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if (fApplyElectronVetoConvRecovery && !PhotonTools::PassElectronVetoConvRecovery(ph,fElectrons,fConversions,bsp) ) continue;
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if (fApplyConversionId && !PhotonTools::PassConversionId(ph,PhotonTools::MatchedConversion(ph,fConversions,bsp))) continue;
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if (fApplyTriggerMatching && !PhotonTools::PassTriggerMatching(ph,trigObjs)) continue;
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Bool_t idcut = kFALSE;
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switch (fPhIdType) {
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case kTight:
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idcut = ph->IsTightPhoton();
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break;
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case kLoose:
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idcut = ph->IsLoosePhoton();
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break;
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case kLooseEM:
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idcut = ph->IsLooseEM();
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break;
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case kCustomId:
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idcut = kTRUE;
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default:
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break;
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}
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if (!idcut)
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continue;
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Bool_t isocut = kFALSE;
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switch (fPhIsoType) {
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case kNoIso:
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isocut = kTRUE;
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break;
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case kCombinedIso:
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{
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Double_t totalIso = ph->HollowConeTrkIsoDr04()+
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ph->EcalRecHitIsoDr04() +
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ph->HcalTowerSumEtDr04();
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if (totalIso/ph->Pt() < 0.25)
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isocut = kTRUE;
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}
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break;
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case kCustomIso:
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{
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if ( ph->HollowConeTrkIsoDr04() < (1.5 + 0.001*ph->Pt()) && ph->EcalRecHitIsoDr04()<(2.0+0.006*ph->Pt()) && ph->HcalTowerSumEtDr04()<(2.0+0.0025*ph->Pt()) )
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isocut = kTRUE;
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}
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break;
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case kMITPUCorrected:
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{
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// compute the PU corrections only if Rho is available
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// ... otherwise (_tRho = -1.0) it's the std isolation
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isocut = kTRUE;
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Double_t fEffAreaEcal = fEffAreaEcalEB;
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Double_t fEffAreaHcal = fEffAreaHcalEB;
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Double_t fEffAreaTrack = fEffAreaTrackEB;
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if( abs(ph->Eta()) > 1.5 ) {
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fEffAreaEcal = fEffAreaEcalEE;
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fEffAreaHcal = fEffAreaHcalEE;
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fEffAreaTrack = fEffAreaTrackEE;
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}
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Double_t EcalCorrISO = ph->EcalRecHitIsoDr04();
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if(_tRho > -0.5 ) EcalCorrISO -= _tRho * fEffAreaEcal;
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if ( EcalCorrISO > (2.0+0.006*ph->Pt()) ) isocut = kFALSE;
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if ( isocut ) {
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Double_t HcalCorrISO = ph->HcalTowerSumEtDr04();
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if(_tRho > -0.5 ) HcalCorrISO -= _tRho * fEffAreaHcal;
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if ( HcalCorrISO > (2.0+0.0025*ph->Pt()) ) isocut = kFALSE;
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}
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if ( isocut ) {
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Double_t TrackCorrISO = IsolationTools::TrackIsolationNoPV(ph, bsp, 0.4, 0.04, 0.0, 0.015, 0.1, TrackQuality::highPurity, fTracks);
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if(_tRho > -0.5 )
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TrackCorrISO -= _tRho * fEffAreaTrack;
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if ( TrackCorrISO > (1.5 + 0.001*ph->Pt()) ) isocut = kFALSE;
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}
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break;
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}
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default:
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break;
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}
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if (!isocut)
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continue;
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if ( fApplyR9Min && ph->R9() <= fPhotonR9Min)
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continue;
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if (fFiduciality == kTRUE &&
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ph->IsEB() == kFALSE && ph->IsEE() == kFALSE)
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continue;
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if ((ph->IsEB() == kTRUE && ph->CoviEtaiEta() >= fEtaWidthEB) ||
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(ph->IsEE() == kTRUE && ph->CoviEtaiEta() >= fEtaWidthEE))
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continue;
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if (ph->AbsEta() >= fAbsEtaMax)
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continue;
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// add good electron
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GoodPhotons->Add(fPhotons->At(i));
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}
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// sort according to pt
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GoodPhotons->Sort();
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// add to event for other modules to use
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AddObjThisEvt(GoodPhotons);
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}
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//--------------------------------------------------------------------------------------------------
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void PhotonIDMod::SlaveBegin()
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{
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// Run startup code on the computer (slave) doing the actual analysis. Here,
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// we just request the photon collection branch.
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ReqEventObject(fPhotonBranchName, fPhotons, kTRUE);
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ReqEventObject(fTrackBranchName, fTracks, kTRUE);
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ReqEventObject(fBeamspotBranchName, fBeamspots, kTRUE);
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ReqEventObject(fPileUpDenName, fPileUpDen, kTRUE);
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ReqEventObject(fConversionName, fConversions, kTRUE);
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ReqEventObject(fElectronName, fElectrons, kTRUE);
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if (fPhotonIDType.CompareTo("Tight") == 0)
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fPhIdType = kTight;
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else if (fPhotonIDType.CompareTo("Loose") == 0)
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fPhIdType = kLoose;
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else if (fPhotonIDType.CompareTo("LooseEM") == 0)
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fPhIdType = kLooseEM;
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else if (fPhotonIDType.CompareTo("Custom") == 0) {
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fPhIdType = kCustomId;
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} else {
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SendError(kAbortAnalysis, "SlaveBegin",
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"The specified photon identification %s is not defined.",
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fPhotonIDType.Data());
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return;
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}
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if (fPhotonIsoType.CompareTo("NoIso") == 0 )
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fPhIsoType = kNoIso;
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else if (fPhotonIsoType.CompareTo("CombinedIso") == 0 )
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fPhIsoType = kCombinedIso;
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else if (fPhotonIsoType.CompareTo("Custom") == 0 )
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fPhIsoType = kCustomIso;
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else if (fPhotonIsoType.CompareTo("MITPUCorrected") == 0 )
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fPhIsoType = kMITPUCorrected;
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else {
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SendError(kAbortAnalysis, "SlaveBegin",
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"The specified photon isolation %s is not defined.",
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fPhotonIsoType.Data());
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return;
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}
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}
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