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 114 of file GsfElectronAlgo.cc.

Constructor & Destructor Documentation

ElectronData()

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

Definition at line 160 of file GsfElectronAlgo.cc.

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

Member Function Documentation

calculateMode()

void GsfElectronAlgo::ElectronData::calculateMode

(

)

Definition at line 257 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);
}

calculateMomentum()

Candidate::LorentzVector GsfElectronAlgo::ElectronData::calculateMomentum

(

)

Definition at line 273 of file GsfElectronAlgo.cc.

References pfClustersFromCombinedCaloHF_cfi::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());
}

calculateTSOS()

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

Definition at line 217 of file GsfElectronAlgo.cc.

References pwdgSkimBPark_cfi::beamSpot, qcdUeDQM_cfi::bsPos, GsfConstraintAtVertex::constrainAtBeamSpot(), ele_convert(), MultiTrajectoryStateTransform::extrapolatedState(), MultiTrajectoryStateTransform::innerStateOnSurface(), and MultiTrajectoryStateTransform::outerStateOnSurface().

Referenced by GsfElectronAlgo::completeElectrons().

                                                                                                {
  //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;
}

computeCharge()

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

Definition at line 168 of file GsfElectronAlgo.cc.

References PV3DBase< T, PVType, FrameType >::barePhi(), pwdgSkimBPark_cfi::beamSpot, ALCARECOTkAlJpsiMuMu_cff::charge, ele_convert(), info(), and normalizedPhi().

Referenced by GsfElectronAlgo::createElectron().

                                                                                        {
  // 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();
  }
}

getEleBasicCluster()

CaloClusterPtr GsfElectronAlgo::ElectronData::getEleBasicCluster

(

MultiTrajectoryStateTransform const &

mtsTransform

)

Definition at line 196 of file GsfElectronAlgo.cc.

References funct::abs(), pwdgSkimBPark_cfi::beamSpot, HLT_2023v12_cff::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

beamSpot

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

Definition at line 121 of file GsfElectronAlgo.cc.

constrainedVtxTSOS

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::constrainedVtxTSOS

Definition at line 140 of file GsfElectronAlgo.cc.

coreRef

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

Definition at line 116 of file GsfElectronAlgo.cc.

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

ctfTrackRef

reco::TrackRef GsfElectronAlgo::ElectronData::ctfTrackRef

Definition at line 119 of file GsfElectronAlgo.cc.

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

eleMom

GlobalVector GsfElectronAlgo::ElectronData::eleMom

Definition at line 143 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

elePos

GlobalPoint GsfElectronAlgo::ElectronData::elePos

Definition at line 144 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

eleTSOS

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::eleTSOS

Definition at line 139 of file GsfElectronAlgo.cc.

gsfTrackRef

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

Definition at line 117 of file GsfElectronAlgo.cc.

innMom

GlobalVector GsfElectronAlgo::ElectronData::innMom

Definition at line 143 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

innPos

GlobalPoint GsfElectronAlgo::ElectronData::innPos

Definition at line 144 of file GsfElectronAlgo.cc.

innTSOS

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::innTSOS

Definition at line 134 of file GsfElectronAlgo.cc.

outMom

GlobalVector GsfElectronAlgo::ElectronData::outMom

Definition at line 143 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

outPos

GlobalPoint GsfElectronAlgo::ElectronData::outPos

Definition at line 144 of file GsfElectronAlgo.cc.

outTSOS

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::outTSOS

Definition at line 135 of file GsfElectronAlgo.cc.

sclMom

GlobalVector GsfElectronAlgo::ElectronData::sclMom

Definition at line 143 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

sclPos

GlobalPoint GsfElectronAlgo::ElectronData::sclPos

Definition at line 144 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

sclTSOS

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::sclTSOS

Definition at line 137 of file GsfElectronAlgo.cc.

seedMom

GlobalVector GsfElectronAlgo::ElectronData::seedMom

Definition at line 143 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

seedPos

GlobalPoint GsfElectronAlgo::ElectronData::seedPos

Definition at line 144 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

seedTSOS

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::seedTSOS

Definition at line 138 of file GsfElectronAlgo.cc.

shFracInnerHits

float GsfElectronAlgo::ElectronData::shFracInnerHits

Definition at line 120 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

superClusterRef

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

Definition at line 118 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

vtxMom

GlobalVector GsfElectronAlgo::ElectronData::vtxMom

Definition at line 143 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

vtxMomWithConstraint

GlobalVector GsfElectronAlgo::ElectronData::vtxMomWithConstraint

Definition at line 145 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

vtxPos

GlobalPoint GsfElectronAlgo::ElectronData::vtxPos

Definition at line 144 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().

vtxTSOS

TrajectoryStateOnSurface GsfElectronAlgo::ElectronData::vtxTSOS

Definition at line 136 of file GsfElectronAlgo.cc.

Referenced by GsfElectronAlgo::createElectron().