#include <PhotonTkIsolation.h>

Public Member Functions
std::pair< int, float >	getIso (const reco::Candidate *) const

	PhotonTkIsolation (float extRadius, float intRadius, float etLow, float lip, float drb, const reco::TrackCollection *trackCollection, reco::TrackBase::Point beamPoint)

	PhotonTkIsolation (float extRadius, float intRadius, float strip, float etLow, float lip, float drb, const reco::TrackCollection *trackCollection, reco::TrackBase::Point beamPoint)

	PhotonTkIsolation (float extRadius, float intRadiusBarrel, float intRadiusEndcap, float stripBarrel, float stripEndcap, float etLow, float lip, float drb, const reco::TrackCollection *trackCollection, reco::TrackBase::Point beamPoint)

	PhotonTkIsolation (float extRadius, float intRadiusBarrel, float intRadiusEndcap, float stripBarrel, float stripEndcap, float etLow, float lip, float drb, const reco::TrackCollection *, reco::TrackBase::Point beamPoint, const std::string &)

void	setDzOption (const std::string &s)

	~PhotonTkIsolation ()

Private Attributes
reco::TrackBase::Point	beamPoint_

float	drb_

int	dzOption_

float	etLow_

float	extRadius2_

float	intRadiusBarrel2_

float	intRadiusEndcap2_

float	lip_

float	stripBarrel_

float	stripEndcap_

const reco::TrackCollection *	trackCollection_

Detailed Description

Definition at line 25 of file PhotonTkIsolation.h.

Constructor & Destructor Documentation

PhotonTkIsolation::PhotonTkIsolation	(	float	extRadius,
		float	intRadius,
		float	etLow,
		float	lip,
		float	drb,
		const reco::TrackCollection *	trackCollection,
		reco::TrackBase::Point	beamPoint
	)

inline

Definition at line 29 of file PhotonTkIsolation.h.

References setDzOption().

Referenced by PhotonTkIsolation().

                                            :
     extRadius2_(extRadius*extRadius),
     intRadiusBarrel2_(intRadius*intRadius),
     intRadiusEndcap2_(intRadius*intRadius),
     stripBarrel_(0.0),
     stripEndcap_(0.0),
     etLow_(etLow),
     lip_(lip),
     drb_(drb),
     trackCollection_(trackCollection),
     beamPoint_(beamPoint) {
     
     setDzOption("vz");
 
   }

PhotonTkIsolation::PhotonTkIsolation	(	float	extRadius,
		float	intRadius,
		float	strip,
		float	etLow,
		float	lip,
		float	drb,
		const reco::TrackCollection *	trackCollection,
		reco::TrackBase::Point	beamPoint
	)

inline

Definition at line 51 of file PhotonTkIsolation.h.

References setDzOption().

                                                    :
     extRadius2_(extRadius*extRadius),
     intRadiusBarrel2_(intRadius*intRadius),
     intRadiusEndcap2_(intRadius*intRadius),
     stripBarrel_(strip),
     stripEndcap_(strip),
     etLow_(etLow),
     lip_(lip),
     drb_(drb),
     trackCollection_(trackCollection),
     beamPoint_(beamPoint) {
     
     setDzOption("vz");
     
   }

PhotonTkIsolation::PhotonTkIsolation	(	float	extRadius,
		float	intRadiusBarrel,
		float	intRadiusEndcap,
		float	stripBarrel,
		float	stripEndcap,
		float	etLow,
		float	lip,
		float	drb,
		const reco::TrackCollection *	trackCollection,
		reco::TrackBase::Point	beamPoint
	)

inline

Definition at line 75 of file PhotonTkIsolation.h.

References electronEcalRecHitIsolationLcone_cfi::extRadius, getIso(), electronEcalRecHitIsolationLcone_cfi::intRadiusBarrel, electronEcalRecHitIsolationLcone_cfi::intRadiusEndcap, btvTracks_cfi::lip, PhotonTkIsolation(), alignCSCRings::s, setDzOption(), AlCaHLTBitMon_QueryRunRegistry::string, electronTrackIsolationLcone_cfi::stripBarrel, electronTrackIsolationLcone_cfi::stripEndcap, and ~PhotonTkIsolation().

                                                    :
     extRadius2_(extRadius*extRadius),
     intRadiusBarrel2_(intRadiusBarrel*intRadiusBarrel),
     intRadiusEndcap2_(intRadiusEndcap*intRadiusEndcap),
     stripBarrel_(stripBarrel),
     stripEndcap_(stripEndcap),
     etLow_(etLow),
     lip_(lip),
     drb_(drb),
     trackCollection_(trackCollection),
     beamPoint_(beamPoint) {
     
     setDzOption("vz");
     
   }

PhotonTkIsolation::PhotonTkIsolation	(	float	extRadius,
		float	intRadiusBarrel,
		float	intRadiusEndcap,
		float	stripBarrel,
		float	stripEndcap,
		float	etLow,
		float	lip,
		float	drb,
		const reco::TrackCollection *	trackCollection,
		reco::TrackBase::Point	beamPoint,
		const std::string &	dzOptionString
	)

Definition at line 30 of file PhotonTkIsolation.cc.

References setDzOption().

                                                                        :
   extRadius2_(extRadius*extRadius),
   intRadiusBarrel2_(intRadiusBarrel*intRadiusBarrel),
   intRadiusEndcap2_(intRadiusEndcap*intRadiusEndcap),
   stripBarrel_(stripBarrel),
   stripEndcap_(stripEndcap),
   etLow_(etLow),
   lip_(lip),
   drb_(drb),
   trackCollection_(trackCollection),
   beamPoint_(beamPoint)
 {
     setDzOption(dzOptionString);
 }

PhotonTkIsolation::~PhotonTkIsolation ( )

Definition at line 65 of file PhotonTkIsolation.cc.

Referenced by PhotonTkIsolation().

66 {

67 }

Member Function Documentation

std::pair< int, float > PhotonTkIsolation::getIso ( const reco::Candidate * photon ) const

Definition at line 72 of file PhotonTkIsolation.cc.

References beamPoint_, egammaisolation::EgammaTrackSelector::bs, counter, reco::deltaR2(), drb_, egammaisolation::EgammaTrackSelector::dz, pfChMet_cfi::dzCut, dzOption_, reco::Candidate::eta(), etLow_, intRadiusBarrel2_, intRadiusEndcap2_, lip_, stripBarrel_, stripEndcap_, trackCollection_, reco::Candidate::vertex(), egammaisolation::EgammaTrackSelector::vtx, and egammaisolation::EgammaTrackSelector::vz.

Referenced by PhotonIsolationCalculator::calculateTrackIso(), and PhotonTkIsolation().

 {
   int counter  =0 ;
   float ptSum =0.;
 
 
   //Take the photon position
   float photonEta = photon->eta();
 
   //loop over tracks
   for(reco::TrackCollection::const_iterator trItr = trackCollection_->begin(); trItr != trackCollection_->end(); ++trItr){
 
     //check z-distance of vertex 
     float dzCut = 0;
     switch( dzOption_ ) {
         case egammaisolation::EgammaTrackSelector::dz : dzCut = fabs( (*trItr).dz() - photon->vertex().z() ); break;
         case egammaisolation::EgammaTrackSelector::vz : dzCut = fabs( (*trItr).vz() - photon->vertex().z() ); break;
         case egammaisolation::EgammaTrackSelector::bs : dzCut = fabs( (*trItr).dz(beamPoint_) - photon->vertex().z() ); break;
         case egammaisolation::EgammaTrackSelector::vtx: dzCut = fabs( (*trItr).dz(photon->vertex())); break;
         default : dzCut = fabs( (*trItr).vz() - photon->vertex().z() ); break;
     }
     if (dzCut > lip_ ) continue;
 
     float this_pt  = (*trItr).pt();
     if ( this_pt < etLow_ ) continue ;  
     if (fabs( (*trItr).dxy(beamPoint_) ) > drb_   ) continue;// only consider tracks from the main vertex 
     float dr2 = reco::deltaR2(*trItr,*photon) ;
     float deta = (*trItr).eta() - photonEta ;
     if (fabs(photonEta) < 1.479) {
         if(dr2 < extRadius2_ && dr2 >= intRadiusBarrel2_ && fabs(deta) >= stripBarrel_) 
         {
         ++counter;
         ptSum += this_pt;
         }
     }
     else {
         if(dr2 < extRadius2_ && dr2 >= intRadiusEndcap2_ && fabs(deta) >= stripEndcap_)
         {
             ++counter;
             ptSum += this_pt;
         }
     }
 
   }//end loop over tracks
 
   std::pair<int,float> retval;
   retval.first  = counter;
   retval.second = ptSum;  
   return retval;
 }

void PhotonTkIsolation::setDzOption ( const std::string & s )

Definition at line 55 of file PhotonTkIsolation.cc.

References egammaisolation::EgammaTrackSelector::bs, egammaisolation::EgammaTrackSelector::dz, dzOption_, egammaisolation::EgammaTrackSelector::vtx, and egammaisolation::EgammaTrackSelector::vz.

Referenced by PhotonTkIsolation().

                                                       {
   if( ! s.compare("dz") )      dzOption_ = egammaisolation::EgammaTrackSelector::dz;
   else if( ! s.compare("vz") ) dzOption_ = egammaisolation::EgammaTrackSelector::vz;
   else if( ! s.compare("bs") ) dzOption_ = egammaisolation::EgammaTrackSelector::bs;
   else if( ! s.compare("vtx") )dzOption_ = egammaisolation::EgammaTrackSelector::vtx;
   else                         dzOption_ = egammaisolation::EgammaTrackSelector::dz;
 }

Member Data Documentation

reco::TrackBase::Point PhotonTkIsolation::beamPoint_

private

Definition at line 134 of file PhotonTkIsolation.h.

Referenced by getIso().

float PhotonTkIsolation::drb_

private

Definition at line 131 of file PhotonTkIsolation.h.

Referenced by getIso().

int PhotonTkIsolation::dzOption_

private

Definition at line 136 of file PhotonTkIsolation.h.

Referenced by getIso(), and setDzOption().

float PhotonTkIsolation::etLow_

private

Definition at line 129 of file PhotonTkIsolation.h.

Referenced by getIso().

float PhotonTkIsolation::extRadius2_

private

Definition at line 124 of file PhotonTkIsolation.h.

float PhotonTkIsolation::intRadiusBarrel2_

private

Definition at line 125 of file PhotonTkIsolation.h.

Referenced by getIso().

float PhotonTkIsolation::intRadiusEndcap2_

private

Definition at line 126 of file PhotonTkIsolation.h.

Referenced by getIso().

float PhotonTkIsolation::lip_

private

Definition at line 130 of file PhotonTkIsolation.h.

Referenced by getIso().

float PhotonTkIsolation::stripBarrel_

private

Definition at line 127 of file PhotonTkIsolation.h.

Referenced by getIso().

float PhotonTkIsolation::stripEndcap_

private

Definition at line 128 of file PhotonTkIsolation.h.

Referenced by getIso().

const reco::TrackCollection* PhotonTkIsolation::trackCollection_

private

Definition at line 133 of file PhotonTkIsolation.h.

Referenced by getIso().

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation