#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)
	EgammaRecHitIsolation (double extRadius, double intRadius, double etaSlice, double etLow, double eLow, edm::ESHandle< CaloGeometry >, CaloRecHitMetaCollectionV , const EcalSeverityLevelAlgo , DetId::Detector detector)
double	getEnergySum (const reco::SuperCluster *emObject) const
double	getEnergySum (const reco::Candidate *emObject) const
double	getEtSum (const reco::SuperCluster *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
double	getSum_ (const reco::SuperCluster *, 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_
const EcalSeverityLevelAlgo *	sevLevel_
const CaloSubdetectorGeometry *	subdet_ [2]
edm::ESHandle< CaloGeometry >	theCaloGeom_
bool	useNumCrystals_
std::vector< int >	v_chstatus_
bool	vetoClustered_

Detailed Description

Definition at line 27 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,
		const EcalSeverityLevelAlgo *	sl,
		DetId::Detector	detector
	)

Definition at line 32 of file EgammaRecHitIsolation.cc.

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

                                                                     :  // not used anymore, kept for compatibility
    extRadius_(extRadius),
    intRadius_(intRadius),
    etaSlice_(etaSlice),
    etLow_(etLow),
    eLow_(eLow),
    theCaloGeom_(theCaloGeom) ,  
    caloHits_(caloHits),
    sevLevel_(sl),
    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 66 of file EgammaRecHitIsolation.cc.

{
}

Member Function Documentation

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

Definition at line 64 of file EgammaRecHitIsolation.h.

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

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

                                            {
    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`
	)		`[inline]`

Definition at line 49 of file EgammaRecHitIsolation.h.

References chStatus_, ecalBarHits_, and severityLevelCut_.

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

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

double EgammaRecHitIsolation::getEnergySum ( const reco::SuperCluster * emObject ) const [inline]

Definition at line 45 of file EgammaRecHitIsolation.h.

References getSum_().

{ return  getSum_(emObject,false);}

double EgammaRecHitIsolation::getEnergySum ( const reco::Candidate * emObject ) const [inline]

Definition at line 42 of file EgammaRecHitIsolation.h.

References getSum_().

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

{ return  getSum_(emObject,false);}

double EgammaRecHitIsolation::getEtSum ( const reco::Candidate * emObject ) const [inline]

Definition at line 41 of file EgammaRecHitIsolation.h.

References getSum_().

Referenced by ConversionTrackCandidateProducer::buildCollections(), PhotonIsolationCalculator::calculateEcalRecHitIso(), GsfElectronAlgo::createElectron(), EgammaHLTEcalRecIsolationProducer::produce(), and EgammaEcalRecHitIsolationProducer::produce().

{return getSum_(emObject,true);}

double EgammaRecHitIsolation::getEtSum ( const reco::SuperCluster * emObject ) const [inline]

Definition at line 44 of file EgammaRecHitIsolation.h.

References getSum_().

{return getSum_(emObject,true);}

double EgammaRecHitIsolation::getSum_	(	const reco::SuperCluster *	sc,
		bool	returnEt
	)		const `[private]`

Definition at line 177 of file EgammaRecHitIsolation.cc.

References caloHits_, reco::SuperCluster::clustersBegin(), reco::SuperCluster::clustersEnd(), SiPixelRawToDigiRegional_cfi::deltaPhi, ecalBarHits_, eLow_, CaloRecHitMetaCollectionV::end(), relval_parameters_module::energy, CastorDataFrameFilter_impl::energySum(), eta(), PV3DBase< T, PVType, FrameType >::eta(), etaSlice_, etLow_, extRadius_, CaloRecHitMetaCollectionV::find(), spr::find(), CaloSubdetectorGeometry::getCells(), i, intRadius_, j, PV3DBase< T, PVType, FrameType >::mag(), PV3DBase< T, PVType, FrameType >::perp(), PV3DBase< T, PVType, FrameType >::phi(), phi, reco::CaloCluster::position(), position, edm::ESHandle< T >::product(), diffTwoXMLs::r2, EcalSeverityLevelAlgo::severityLevel(), severityLevelCut_, sevLevel_, mathSSE::sqrt(), subdet_, theCaloGeom_, useNumCrystals_, v_chstatus_, and vetoClustered_.

{

    double energySum = 0.;
    if (caloHits_){
        //Take the SC position
 
        math::XYZPoint theCaloPosition = sc->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
                    //make sure we have a barrel rechit                                     
                    //call the severity level method                                        
                    //passing the EBDetId                                                   
                    //the rechit collection in order to calculate the swiss crss            
                    //and the EcalChannelRecHitRcd                                          
                    //only consider rechits with ET >                                       
                    //the SpikeId method (currently kE1OverE9 or kSwissCross)               
                    //cut value for above                                                   
                    //then if the severity level is too high, we continue to the next rechit

                    if( severityLevelCut_!=-1 && ecalBarHits_ && 
                        sevLevel_->severityLevel(EBDetId(j->detid()), *ecalBarHits_) >= severityLevelCut_) 
                      continue;                    
                    //                            *chStatus_,                           
                    //        severityRecHitThreshold_,             
                    //        spId_,                                
                    //        spIdThreshold_                        
                    //    ) >= severityLevelCut_) continue;         




                    //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;
}

double EgammaRecHitIsolation::getSum_	(	const reco::Candidate *	emObject,
		bool	returnEt
	)		const `[private]`

Definition at line 70 of file EgammaRecHitIsolation.cc.

References caloHits_, SiPixelRawToDigiRegional_cfi::deltaPhi, ecalBarHits_, eLow_, CaloRecHitMetaCollectionV::end(), relval_parameters_module::energy, CastorDataFrameFilter_impl::energySum(), eta(), PV3DBase< T, PVType, FrameType >::eta(), etaSlice_, etLow_, extRadius_, CaloRecHitMetaCollectionV::find(), spr::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(), PV3DBase< T, PVType, FrameType >::phi(), phi, position, edm::ESHandle< T >::product(), diffTwoXMLs::r2, EcalSeverityLevelAlgo::severityLevel(), severityLevelCut_, sevLevel_, 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
                    //make sure we have a barrel rechit                                     
                    //call the severity level method                                        
                    //passing the EBDetId                                                   
                    //the rechit collection in order to calculate the swiss crss            
                    //and the EcalChannelRecHitRcd                                          
                    //only consider rechits with ET >                                       
                    //the SpikeId method (currently kE1OverE9 or kSwissCross)               
                    //cut value for above                                                   
                    //then if the severity level is too high, we continue to the next rechit

                    if( severityLevelCut_!=-1 && ecalBarHits_ && 
                        sevLevel_->severityLevel(EBDetId(j->detid()), *ecalBarHits_) >= severityLevelCut_) 
                      continue;                    
                    //                            *chStatus_,                           
                    //        severityRecHitThreshold_,             
                    //        spId_,                                
                    //        spIdThreshold_                        
                    //    ) >= severityLevelCut_) continue;         




                    //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;
}