#include <EgammaRecHitIsolation.h>

Public Member Functions
void	doFlagChecks (const std::vector< int > v)

void	doSpikeRemoval (const EcalRecHitCollection const recHits, const EcalChannelStatus const chStatus, const int &severityLevelCut=3, const float &sevRecHitThresh=5.0, const EcalSeverityLevelAlgo::SpikeId &id=EcalSeverityLevelAlgo::kSwissCross, const float &spIdThresh=0.95)

	EgammaRecHitIsolation (double extRadius, double intRadius, double etaSlice, double etLow, double eLow, edm::ESHandle< CaloGeometry >, CaloRecHitMetaCollectionV *, DetId::Detector detector)

double	getEnergySum (const reco::Candidate *emObject) const

double	getEtSum (const reco::Candidate *emObject) const

void	setUseNumCrystals (bool b=true)

void	setVetoClustered (bool b=true)

	~EgammaRecHitIsolation ()

Private Member Functions
double	getSum_ (const reco::Candidate *, bool returnEt) const

Private Attributes
CaloRecHitMetaCollectionV *	caloHits_

const EcalChannelStatus *	chStatus_

const EcalRecHitCollection *	ecalBarHits_

double	eLow_

double	etaSlice_

double	etLow_

double	extRadius_

double	intRadius_

int	severityLevelCut_

float	severityRecHitThreshold_

EcalSeverityLevelAlgo::SpikeId	spId_

float	spIdThreshold_

const CaloSubdetectorGeometry *	subdet_ [2]

edm::ESHandle< CaloGeometry >	theCaloGeom_

bool	useNumCrystals_

std::vector< int >	v_chstatus_

bool	vetoClustered_

Detailed Description

Definition at line 26 of file EgammaRecHitIsolation.h.

Constructor & Destructor Documentation

EgammaRecHitIsolation::EgammaRecHitIsolation	(	double	extRadius,
		double	intRadius,
		double	etaSlice,
		double	etLow,
		double	eLow,
		edm::ESHandle< CaloGeometry >	theCaloGeom,
		CaloRecHitMetaCollectionV *	caloHits,
		DetId::Detector	detector
	)

Definition at line 32 of file EgammaRecHitIsolation.cc.

References DetId::Ecal, EcalBarrel, EcalEndcap, CaloGeometry::getSubdetectorGeometry(), edm::ESHandle< class >::product(), subdet_, and theCaloGeom_.

                                :  // not used anymore, kept for compatibility
     extRadius_(extRadius),
     intRadius_(intRadius),
     etaSlice_(etaSlice),
     etLow_(etLow),
     eLow_(eLow),
     theCaloGeom_(theCaloGeom) ,  
     caloHits_(caloHits),
     useNumCrystals_(false),
     vetoClustered_(false),
     ecalBarHits_(0),
     chStatus_(0),
     severityLevelCut_(-1),
     severityRecHitThreshold_(0),
     spId_(EcalSeverityLevelAlgo::kSwissCross),
     spIdThreshold_(0),
     v_chstatus_(0)
 {
     //set up the geometry and selector
     const CaloGeometry* caloGeom = theCaloGeom_.product();
     subdet_[0] = caloGeom->getSubdetectorGeometry(DetId::Ecal,EcalBarrel);
     subdet_[1] = caloGeom->getSubdetectorGeometry(DetId::Ecal,EcalEndcap);
 }

EgammaRecHitIsolation::~EgammaRecHitIsolation ( )

Definition at line 63 of file EgammaRecHitIsolation.cc.

64 {

65 }

Member Function Documentation

void EgammaRecHitIsolation::doFlagChecks ( const std::vector< int > v )

inline

Definition at line 57 of file EgammaRecHitIsolation.h.

References python.multivaluedict::sort(), and v_chstatus_.

Referenced by GsfElectronAlgo::beginEvent().

                                             {
     v_chstatus_.clear();
     v_chstatus_.insert(v_chstatus_.begin(),v.begin(),v.end());
     std::sort( v_chstatus_.begin(), v_chstatus_.end() );
   }

void EgammaRecHitIsolation::doSpikeRemoval	(	const EcalRecHitCollection *const	recHits,
		const EcalChannelStatus *const	chStatus,
		const int &	severityLevelCut = `3`,
		const float &	sevRecHitThresh = `5.0`,
		const EcalSeverityLevelAlgo::SpikeId &	id = `EcalSeverityLevelAlgo::kSwissCross`,
		const float &	spIdThresh = `0.95`
	)

inline

Definition at line 43 of file EgammaRecHitIsolation.h.

References chStatus_, ecalBarHits_, ExpressReco_HICollisions_FallBack::id, ExpressReco_HICollisions_FallBack::severityLevelCut, severityLevelCut_, severityRecHitThreshold_, spId_, and spIdThreshold_.

Referenced by GsfElectronAlgo::beginEvent(), and PhotonIsolationCalculator::calculateEcalRecHitIso().

                                                       { 
     ecalBarHits_ = recHits; 
     chStatus_ = chStatus;
     severityLevelCut_ = severityLevelCut;
     severityRecHitThreshold_ = sevRecHitThresh;
     spId_ = id;
     spIdThreshold_ = spIdThresh;
   }

double EgammaRecHitIsolation::getEnergySum ( const reco::Candidate * emObject ) const

inline

Definition at line 40 of file EgammaRecHitIsolation.h.

References getSum_().

Referenced by EgammaHLTEcalRecIsolationProducer::produce(), and EgammaEcalRecHitIsolationProducer::produce().

40 { return getSum_(emObject,false);}

EgammaRecHitIsolation::getSum_

double getSum_(const reco::Candidate *, bool returnEt) const

Definition: EgammaRecHitIsolation.cc:67

double EgammaRecHitIsolation::getEtSum ( const reco::Candidate * emObject ) const

inline

Definition at line 39 of file EgammaRecHitIsolation.h.

References getSum_().

Referenced by PhotonIsolationCalculator::calculateEcalRecHitIso(), GsfElectronAlgo::createElectron(), egHLT::OffHelper::fillIsolData(), EgammaHLTEcalRecIsolationProducer::produce(), and EgammaEcalRecHitIsolationProducer::produce().

39 {return getSum_(emObject,true);}

EgammaRecHitIsolation::getSum_

double getSum_(const reco::Candidate *, bool returnEt) const

Definition: EgammaRecHitIsolation.cc:67

double EgammaRecHitIsolation::getSum_	(	const reco::Candidate *	emObject,
		bool	returnEt
	)		const

private

Definition at line 67 of file EgammaRecHitIsolation.cc.

References caloHits_, chStatus_, reco::deltaPhi(), CaloRecHit::detid(), ecalBarHits_, eLow_, CaloRecHitMetaCollectionV::end(), CaloRecHit::energy(), relval_parameters_module::energy, CastorDataFrameFilter_impl::energySum(), ExpressReco_HICollisions_FallBack::et, PV3DBase< T, PVType, FrameType >::eta(), eta(), etaSlice_, etLow_, extRadius_, spr::find(), CaloRecHitMetaCollectionV::find(), reco::Candidate::get(), edm::Ref< C, T, F >::get(), CaloSubdetectorGeometry::getCells(), i, intRadius_, j, PV3DBase< T, PVType, FrameType >::mag(), PV3DBase< T, PVType, FrameType >::perp(), phi, PV3DBase< T, PVType, FrameType >::phi(), position, edm::ESHandle< class >::product(), EcalSeverityLevelAlgo::severityLevel(), severityLevelCut_, severityRecHitThreshold_, spId_, spIdThreshold_, mathSSE::sqrt(), subdet_, theCaloGeom_, useNumCrystals_, v_chstatus_, and vetoClustered_.

Referenced by getEnergySum(), and getEtSum().

 {
 
     double energySum = 0.;
     if (caloHits_){
         //Take the SC position
         reco::SuperClusterRef sc = emObject->get<reco::SuperClusterRef>();
         math::XYZPoint theCaloPosition = sc.get()->position();
         GlobalPoint pclu (theCaloPosition.x () ,
                 theCaloPosition.y () ,
                 theCaloPosition.z () );
         double etaclus = pclu.eta();
         double phiclus = pclu.phi();
         double r2 = intRadius_*intRadius_;
 
         
         std::vector< std::pair<DetId, float> >::const_iterator rhIt;
 
 
         for(int subdetnr=0; subdetnr<=1 ; subdetnr++){  // look in barrel and endcap
             CaloSubdetectorGeometry::DetIdSet chosen = subdet_[subdetnr]->getCells(pclu,extRadius_);// select cells around cluster
             CaloRecHitMetaCollectionV::const_iterator j=caloHits_->end();
             for (CaloSubdetectorGeometry::DetIdSet::const_iterator  i = chosen.begin ();i!= chosen.end ();++i){//loop selected cells
 
                 j=caloHits_->find(*i); // find selected cell among rechits
                 if( j!=caloHits_->end()){ // add rechit only if available 
                     const  GlobalPoint & position = theCaloGeom_.product()->getPosition(*i);
                     double eta = position.eta();
                     double phi = position.phi();
                     double etaDiff = eta - etaclus;
                     double phiDiff= reco::deltaPhi(phi,phiclus);
                     double energy = j->energy();
 
                     if(useNumCrystals_) {
                         if( fabs(etaclus) < 1.479 ) {  // Barrel num crystals, crystal width = 0.0174
                             if ( fabs(etaDiff) < 0.0174*etaSlice_) continue;  
                             if ( sqrt(etaDiff*etaDiff + phiDiff*phiDiff) < 0.0174*intRadius_) continue; 
                         } else {                       // Endcap num crystals, crystal width = 0.00864*fabs(sinh(eta))
                             if ( fabs(etaDiff) < 0.00864*fabs(sinh(eta))*etaSlice_) continue;  
                             if ( sqrt(etaDiff*etaDiff + phiDiff*phiDiff) < 0.00864*fabs(sinh(eta))*intRadius_) continue; 
                         }
                     } else {
                         if ( fabs(etaDiff) < etaSlice_) continue;  // jurassic strip cut
                         if ( etaDiff*etaDiff + phiDiff*phiDiff < r2) continue; // jurassic exclusion cone cut
                     }
 
                     //Check if RecHit is in SC
                     if(vetoClustered_) {
 
                         //Loop over basic clusters:
                         bool isClustered = false;
                         for(reco::CaloCluster_iterator bcIt = sc->clustersBegin();bcIt != sc->clustersEnd(); ++bcIt) {
                             for(rhIt = (*bcIt)->hitsAndFractions().begin();rhIt != (*bcIt)->hitsAndFractions().end(); ++rhIt) {
                                 if( rhIt->first == *i ) isClustered = true;
                                 if( isClustered ) break;
                             }
                             if( isClustered ) break;
                         } //end loop over basic clusters
 
                         if(isClustered) continue;
                     }  //end if removeClustered
 
                     //Severity level check
                     if( severityLevelCut_!=-1 && ecalBarHits_ &&  //make sure we have a barrel rechit
                         EcalSeverityLevelAlgo::severityLevel(     //call the severity level method
                             EBDetId(j->detid()),                  //passing the EBDetId
                             *ecalBarHits_,                        //the rechit collection in order to calculate the swiss crss
                             *chStatus_,                           //and the EcalChannelRecHitRcd
                             severityRecHitThreshold_,             //only consider rechits with ET > 
                             spId_,                                //the SpikeId method (currently kE1OverE9 or kSwissCross)
                             spIdThreshold_                        //cut value for above
                         ) >= severityLevelCut_) continue;         //then if the severity level is too high, we continue to the next rechit
 
                     //Check based on flags to protect from recovered channels from non-read towers
                     //Assumption is that v_chstatus_ is empty unless doFlagChecks() has been called
                     std::vector<int>::const_iterator vit = std::find( v_chstatus_.begin(), v_chstatus_.end(),  ((EcalRecHit*)(&*j))->recoFlag() );
                     if ( vit != v_chstatus_.end() ) continue; // the recHit has to be excluded from the iso sum
 
 
                     double et = energy*position.perp()/position.mag();
                     if ( fabs(et) > etLow_ && fabs(energy) > eLow_){ //Changed energy --> fabs(energy)
                         if(returnEt) energySum+=et;
                         else energySum+=energy;
                     }
 
                 }                //End if not end of list
             }                    //End loop over rechits
         }                        //End loop over barrel/endcap
     }                            //End if caloHits_
     return energySum;
 }