GsfElectronAlgo::ElectronData Struct Reference

Public Member Functions
void	calculateMode ()
reco::Candidate::LorentzVector	calculateMomentum ()
bool	calculateTSOS (MultiTrajectoryStateTransform const &, GsfConstraintAtVertex const &)
void	computeCharge (int &charge, reco::GsfElectron::ChargeInfo &info)
	ElectronData (const reco::GsfElectronCoreRef &core, const reco::BeamSpot &bs)
reco::CaloClusterPtr	getEleBasicCluster (MultiTrajectoryStateTransform const &)

Public Attributes
const reco::BeamSpot	beamSpot
TrajectoryStateOnSurface	constrainedVtxTSOS
const reco::GsfElectronCoreRef	coreRef
reco::TrackRef	ctfTrackRef
GlobalVector	eleMom
GlobalPoint	elePos
TrajectoryStateOnSurface	eleTSOS
const reco::GsfTrackRef	gsfTrackRef
GlobalVector	innMom
GlobalPoint	innPos
TrajectoryStateOnSurface	innTSOS
GlobalVector	outMom
GlobalPoint	outPos
TrajectoryStateOnSurface	outTSOS
GlobalVector	sclMom
GlobalPoint	sclPos
TrajectoryStateOnSurface	sclTSOS
GlobalVector	seedMom
GlobalPoint	seedPos
TrajectoryStateOnSurface	seedTSOS
float	shFracInnerHits
const reco::SuperClusterRef	superClusterRef
GlobalVector	vtxMom
GlobalVector	vtxMomWithConstraint
GlobalPoint	vtxPos
TrajectoryStateOnSurface	vtxTSOS

Detailed Description

Definition at line 315 of file GsfElectronAlgo.h.

Constructor & Destructor Documentation

GsfElectronAlgo::ElectronData::ElectronData	(	const reco::GsfElectronCoreRef &	core,
		const reco::BeamSpot &	bs
	)

Definition at line 67 of file GsfElectronAlgo.cc.

References computeCharge().

Referenced by GsfElectronAlgo::EventData::retreiveOriginalTrackCollections().

 : coreRef(core),
   gsfTrackRef(coreRef->gsfTrack()),
   superClusterRef(coreRef->superCluster()),
   ctfTrackRef(coreRef->ctfTrack()), shFracInnerHits(coreRef->ctfGsfOverlap()),
   beamSpot(bs)
 {}

Member Function Documentation

void GsfElectronAlgo::ElectronData::calculateMode

(

)

Definition at line 162 of file GsfElectronAlgo.cc.

References multiTrajectoryStateMode::momentumFromModeCartesian(), and multiTrajectoryStateMode::positionFromModeCartesian().

Referenced by GsfElectronAlgo::createElectron().

 {
  multiTrajectoryStateMode::momentumFromModeCartesian(innTSOS,innMom) ;
  multiTrajectoryStateMode::positionFromModeCartesian(innTSOS,innPos) ;
  multiTrajectoryStateMode::momentumFromModeCartesian(seedTSOS,seedMom) ;
  multiTrajectoryStateMode::positionFromModeCartesian(seedTSOS,seedPos) ;
  multiTrajectoryStateMode::momentumFromModeCartesian(eleTSOS,eleMom) ;
  multiTrajectoryStateMode::positionFromModeCartesian(eleTSOS,elePos) ;
  multiTrajectoryStateMode::momentumFromModeCartesian(sclTSOS,sclMom) ;
  multiTrajectoryStateMode::positionFromModeCartesian(sclTSOS,sclPos) ;
  multiTrajectoryStateMode::momentumFromModeCartesian(vtxTSOS,vtxMom) ;
  multiTrajectoryStateMode::positionFromModeCartesian(vtxTSOS,vtxPos) ;
  multiTrajectoryStateMode::momentumFromModeCartesian(outTSOS,outMom);
  multiTrajectoryStateMode::positionFromModeCartesian(outTSOS,outPos) ;
  multiTrajectoryStateMode::momentumFromModeCartesian(constrainedVtxTSOS,vtxMomWithConstraint);
 }

Candidate::LorentzVector GsfElectronAlgo::ElectronData::calculateMomentum

(

)

Definition at line 179 of file GsfElectronAlgo.cc.

References Scenarios_cff::scale.

Referenced by GsfElectronAlgo::createElectron().

 {
  double scale = superClusterRef->energy()/vtxMom.mag() ;
  return Candidate::LorentzVector
   ( vtxMom.x()*scale,vtxMom.y()*scale,vtxMom.z()*scale,
     superClusterRef->energy() ) ;
 }

bool GsfElectronAlgo::ElectronData::calculateTSOS	(	MultiTrajectoryStateTransform const &	mtsTransform,
		GsfConstraintAtVertex const &	constraintAtVtx
	)

Definition at line 128 of file GsfElectronAlgo.cc.

References ecalDrivenElectronSeedsParameters_cff::beamSpot, GsfConstraintAtVertex::constrainAtBeamSpot(), ele_convert(), MultiTrajectoryStateTransform::extrapolatedState(), MultiTrajectoryStateTransform::innerStateOnSurface(), MultiTrajectoryStateTransform::outerStateOnSurface(), and funct::true.

Referenced by GsfElectronAlgo::completeElectrons(), and getEleBasicCluster().

 {
  //at innermost point
  innTSOS = mtsTransform.innerStateOnSurface(*gsfTrackRef);
  if (!innTSOS.isValid()) return false;

  //at vertex
  // innermost state propagation to the beam spot position
  GlobalPoint bsPos ;
  ele_convert(beamSpot.position(),bsPos) ;
  vtxTSOS = mtsTransform.extrapolatedState(innTSOS,bsPos) ;
  if (!vtxTSOS.isValid()) vtxTSOS=innTSOS;

  //at seed
  outTSOS = mtsTransform.outerStateOnSurface(*gsfTrackRef);
  if (!outTSOS.isValid()) return false;

  //    TrajectoryStateOnSurface seedTSOS
  seedTSOS = mtsTransform.extrapolatedState(outTSOS,
           GlobalPoint(superClusterRef->seed()->position().x(),
               superClusterRef->seed()->position().y(),
                 superClusterRef->seed()->position().z()));
  if (!seedTSOS.isValid()) seedTSOS=outTSOS;

  // at scl
  sclTSOS = mtsTransform.extrapolatedState(innTSOS,GlobalPoint(superClusterRef->x(),superClusterRef->y(),superClusterRef->z()));
  if (!sclTSOS.isValid()) sclTSOS=outTSOS;

  // constrained momentum
  constrainedVtxTSOS = constraintAtVtx.constrainAtBeamSpot(*gsfTrackRef,beamSpot);

  return true ;
 }

void GsfElectronAlgo::ElectronData::computeCharge	(	int &	charge,
		reco::GsfElectron::ChargeInfo &	info
	)

Definition at line 78 of file GsfElectronAlgo.cc.

References PV3DBase< T, PVType, FrameType >::barePhi(), ecalDrivenElectronSeedsParameters_cff::beamSpot, ele_convert(), reco::GsfElectron::ChargeInfo::isGsfCtfConsistent, reco::GsfElectron::ChargeInfo::isGsfCtfScPixConsistent, reco::GsfElectron::ChargeInfo::isGsfScPixConsistent, normalizedPhi(), and reco::GsfElectron::ChargeInfo::scPixCharge.

Referenced by GsfElectronAlgo::createElectron(), and ElectronData().

 {
  // determine charge from SC
  GlobalPoint orig, scpos ;
  ele_convert(beamSpot.position(),orig) ;
  ele_convert(superClusterRef->position(),scpos) ;
  GlobalVector scvect(scpos-orig) ;
  GlobalPoint inntkpos = innTSOS.globalPosition() ;
  GlobalVector inntkvect = GlobalVector(inntkpos-orig) ;
  float dPhiInnEle=normalizedPhi(scvect.barePhi()-inntkvect.barePhi()) ;
  if(dPhiInnEle>0) info.scPixCharge = -1 ;
  else info.scPixCharge = 1 ;

  // flags
  int chargeGsf = gsfTrackRef->charge() ;
  info.isGsfScPixConsistent = ((chargeGsf*info.scPixCharge)>0) ;
  info.isGsfCtfConsistent = (ctfTrackRef.isNonnull()&&((chargeGsf*ctfTrackRef->charge())>0)) ;
  info.isGsfCtfScPixConsistent = (info.isGsfScPixConsistent&&info.isGsfCtfConsistent) ;

  // default charge
  if (info.isGsfScPixConsistent||ctfTrackRef.isNull())
   { charge = info.scPixCharge ; }
  else
   { charge = ctfTrackRef->charge() ; }
 }

CaloClusterPtr GsfElectronAlgo::ElectronData::getEleBasicCluster

(

MultiTrajectoryStateTransform const &

mtsTransform

)

Definition at line 104 of file GsfElectronAlgo.cc.

References funct::abs(), ecalDrivenElectronSeedsParameters_cff::beamSpot, calculateTSOS(), particleFlow_cfi::dPhi, MultiTrajectoryStateTransform::extrapolatedState(), and MultiTrajectoryStateTransform::outerStateOnSurface().

Referenced by GsfElectronAlgo::createElectron().

 {
  CaloClusterPtr eleRef ;
  TrajectoryStateOnSurface tempTSOS ;
  TrajectoryStateOnSurface outTSOS = mtsTransform.outerStateOnSurface(*gsfTrackRef) ;
  float dphimin = 1.e30 ;
  for(auto const& bc : superClusterRef->clusters())
   {
    GlobalPoint posclu(bc->position().x(),bc->position().y(),bc->position().z()) ;
    tempTSOS = mtsTransform.extrapolatedState(outTSOS,posclu) ;
    if (!tempTSOS.isValid()) tempTSOS=outTSOS ;
    GlobalPoint extrap = tempTSOS.globalPosition() ;
    float dphi = EleRelPointPair(posclu,extrap,beamSpot.position()).dPhi() ;
    if (std::abs(dphi)<dphimin)
     {
      dphimin = std::abs(dphi) ;
      eleRef = bc;
      eleTSOS = tempTSOS ;
     }
   }
  return eleRef ;
 }

Member Data Documentation

const reco::BeamSpot GsfElectronAlgo::ElectronData::beamSpot

Definition at line 323 of file GsfElectronAlgo.h.

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::constrainedVtxTSOS

Definition at line 344 of file GsfElectronAlgo.h.

const reco::GsfElectronCoreRef GsfElectronAlgo::ElectronData::coreRef

Definition at line 318 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

reco::TrackRef GsfElectronAlgo::ElectronData::ctfTrackRef

Definition at line 321 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

GlobalVector GsfElectronAlgo::ElectronData::eleMom

Definition at line 347 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

GlobalPoint GsfElectronAlgo::ElectronData::elePos

Definition at line 348 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::eleTSOS

Definition at line 343 of file GsfElectronAlgo.h.

const reco::GsfTrackRef GsfElectronAlgo::ElectronData::gsfTrackRef

Definition at line 319 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

GlobalVector GsfElectronAlgo::ElectronData::innMom

Definition at line 347 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

GlobalPoint GsfElectronAlgo::ElectronData::innPos

Definition at line 348 of file GsfElectronAlgo.h.

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::innTSOS

Definition at line 338 of file GsfElectronAlgo.h.

GlobalVector GsfElectronAlgo::ElectronData::outMom

Definition at line 347 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

GlobalPoint GsfElectronAlgo::ElectronData::outPos

Definition at line 348 of file GsfElectronAlgo.h.

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::outTSOS

Definition at line 339 of file GsfElectronAlgo.h.

GlobalVector GsfElectronAlgo::ElectronData::sclMom

Definition at line 347 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

GlobalPoint GsfElectronAlgo::ElectronData::sclPos

Definition at line 348 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::sclTSOS

Definition at line 341 of file GsfElectronAlgo.h.

GlobalVector GsfElectronAlgo::ElectronData::seedMom

Definition at line 347 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

GlobalPoint GsfElectronAlgo::ElectronData::seedPos

Definition at line 348 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::seedTSOS

Definition at line 342 of file GsfElectronAlgo.h.

float GsfElectronAlgo::ElectronData::shFracInnerHits

Definition at line 322 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

const reco::SuperClusterRef GsfElectronAlgo::ElectronData::superClusterRef

Definition at line 320 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

GlobalVector GsfElectronAlgo::ElectronData::vtxMom

Definition at line 347 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

GlobalVector GsfElectronAlgo::ElectronData::vtxMomWithConstraint

Definition at line 349 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

GlobalPoint GsfElectronAlgo::ElectronData::vtxPos

Definition at line 348 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::vtxTSOS

Definition at line 340 of file GsfElectronAlgo.h.

Referenced by GsfElectronAlgo::createElectron().