V0Fitter Class Reference

#include <RecoVertex/V0Producer/interface/V0Fitter.h>

Public Member Functions
void	fitAll (const edm::Event &iEvent, const edm::EventSetup &iSetup, reco::VertexCompositeCandidateCollection &k, reco::VertexCompositeCandidateCollection &l)
	V0Fitter (const edm::ParameterSet &theParams, edm::ConsumesCollector &&iC)

Private Attributes
double	cosThetaXYCut_
double	cosThetaXYZCut_
bool	doKShorts_
bool	doLambdas_
double	innerHitPosCut_
double	kShortMassCut_
double	lambdaMassCut_
double	mPiPiCut_
double	tkChi2Cut_
double	tkDCACut_
double	tkIPSigXYCut_
double	tkIPSigZCut_
int	tkNHitsCut_
double	tkPtCut_
edm::EDGetTokenT< reco::BeamSpot >	token_beamSpot
edm::EDGetTokenT< reco::TrackCollection >	token_tracks
edm::EDGetTokenT< std::vector< reco::Vertex > >	token_vertices
bool	useRefTracks_
bool	useVertex_
bool	vertexFitter_
double	vtxChi2Cut_
double	vtxDecaySigXYCut_
double	vtxDecaySigXYZCut_

Detailed Description

Description: <one line="" class="" summary>="">

Implementation: <Notes on="" implementation>="">

Definition at line 40 of file V0Fitter.h.

Constructor & Destructor Documentation

V0Fitter::V0Fitter	(	const edm::ParameterSet &	theParams,
		edm::ConsumesCollector &&	iC
	)

Definition at line 49 of file V0Fitter.cc.

References cosThetaXYCut_, cosThetaXYZCut_, doKShorts_, doLambdas_, edm::ParameterSet::getParameter(), innerHitPosCut_, kShortMassCut_, lambdaMassCut_, mPiPiCut_, tkChi2Cut_, tkDCACut_, tkIPSigXYCut_, tkIPSigZCut_, tkNHitsCut_, tkPtCut_, token_beamSpot, token_tracks, token_vertices, useRefTracks_, useVertex_, vertexFitter_, vtxChi2Cut_, vtxDecaySigXYCut_, and vtxDecaySigXYZCut_.

{
   token_beamSpot = iC.consumes<reco::BeamSpot>(theParameters.getParameter<edm::InputTag>("beamSpot"));
   useVertex_ = theParameters.getParameter<bool>("useVertex");
   token_vertices = iC.consumes<std::vector<reco::Vertex>>(theParameters.getParameter<edm::InputTag>("vertices"));

   token_tracks = iC.consumes<reco::TrackCollection>(theParameters.getParameter<edm::InputTag>("trackRecoAlgorithm"));
   vertexFitter_ = theParameters.getParameter<bool>("vertexFitter");
   useRefTracks_ = theParameters.getParameter<bool>("useRefTracks");
   
   // whether to reconstruct KShorts
   doKShorts_ = theParameters.getParameter<bool>("doKShorts");
   // whether to reconstruct Lambdas
   doLambdas_ = theParameters.getParameter<bool>("doLambdas");

   // cuts on initial track selection
   tkChi2Cut_ = theParameters.getParameter<double>("tkChi2Cut");
   tkNHitsCut_ = theParameters.getParameter<int>("tkNHitsCut");
   tkPtCut_ = theParameters.getParameter<double>("tkPtCut");
   tkIPSigXYCut_ = theParameters.getParameter<double>("tkIPSigXYCut");
   tkIPSigZCut_ = theParameters.getParameter<double>("tkIPSigZCut");
   
   // cuts on vertex
   vtxChi2Cut_ = theParameters.getParameter<double>("vtxChi2Cut");
   vtxDecaySigXYZCut_ = theParameters.getParameter<double>("vtxDecaySigXYZCut");
   vtxDecaySigXYCut_ = theParameters.getParameter<double>("vtxDecaySigXYCut");
   // miscellaneous cuts
   tkDCACut_ = theParameters.getParameter<double>("tkDCACut");
   mPiPiCut_ = theParameters.getParameter<double>("mPiPiCut");
   innerHitPosCut_ = theParameters.getParameter<double>("innerHitPosCut");
   cosThetaXYCut_ = theParameters.getParameter<double>("cosThetaXYCut");
   cosThetaXYZCut_ = theParameters.getParameter<double>("cosThetaXYZCut");
   // cuts on the V0 candidate mass
   kShortMassCut_ = theParameters.getParameter<double>("kShortMassCut");
   lambdaMassCut_ = theParameters.getParameter<double>("lambdaMassCut");
}

Member Function Documentation

void V0Fitter::fitAll	(	const edm::Event &	iEvent,
		const edm::EventSetup &	iSetup,
		reco::VertexCompositeCandidateCollection &	k,
		reco::VertexCompositeCandidateCollection &	l
	)

Definition at line 87 of file V0Fitter.cc.

References funct::abs(), reco::CompositeCandidate::addDaughter(), ClosestApproachInRPhi::calculate(), ALCARECOTkAlJpsiMuMu_cff::charge, reco::Vertex::chi2(), cosThetaXYCut_, cosThetaXYZCut_, reco::Vertex::covariance(), ClosestApproachInRPhi::crossingPoint(), SoftLeptonByDistance_cfi::distance, ClosestApproachInRPhi::distance(), doKShorts_, doLambdas_, Vector3DBase< T, FrameTag >::dot(), reco::TrackBase::dxy(), reco::TrackBase::dxyError(), allConversions_cfi::dz, reco::TrackBase::dz(), reco::TrackBase::dzError(), edm::EventSetup::get(), edm::Event::getByToken(), TransientVertex::hasRefittedTracks(), reco::TransientTrack::impactPointTSCP(), innerHitPosCut_, TrajectoryStateClosestToPoint::isValid(), TransientVertex::isValid(), kShortMassCut_, lambdaMassCut_, PV3DBase< T, PVType, FrameType >::mag2(), mag2(), ResonanceBuilder::mass, reco::LeafCandidate::mass(), TrajectoryStateClosestToPoint::momentum(), eostools::move(), mPiPiCut_, reco::Vertex::ndof(), reco::Vertex::normalizedChi2(), reco::TrackBase::normalizedChi2(), reco::TrackBase::numberOfValidHits(), reco::BeamSpot::position(), edm::Handle< T >::product(), edm::ESHandle< T >::product(), reco::TrackBase::pt(), TransientVertex::refittedTracks(), reco::BeamSpot::rotatedCovariance3D(), AddFourMomenta::set(), reco::LeafCandidate::setPdgId(), reco::RecoChargedCandidate::setTrack(), mathSSE::sqrt(), ClosestApproachInRPhi::status(), TrajectoryStateClosestToPoint::theState(), tkChi2Cut_, tkDCACut_, tkIPSigXYCut_, tkIPSigZCut_, tkNHitsCut_, tkPtCut_, token_beamSpot, token_tracks, token_vertices, reco::TransientTrack::trajectoryStateClosestToPoint(), useRefTracks_, useVertex_, KalmanVertexFitter::vertex(), AdaptiveVertexFitter::vertex(), vertexFitter_, ecalDrivenElectronSeedsParameters_cff::vertices, badGlobalMuonTaggersAOD_cff::vtx, allConversions_cfi::vtxChi2, vtxChi2Cut_, vtxDecaySigXYCut_, vtxDecaySigXYZCut_, PV3DBase< T, PVType, FrameType >::x(), reco::Vertex::x(), PV3DBase< T, PVType, FrameType >::y(), reco::Vertex::y(), PV3DBase< T, PVType, FrameType >::z(), and reco::Vertex::z().

Referenced by V0Producer::produce().

{
   using std::vector;

   edm::Handle<reco::TrackCollection> theTrackHandle;
   iEvent.getByToken(token_tracks, theTrackHandle);
   if (!theTrackHandle->size()) return;
   const reco::TrackCollection* theTrackCollection = theTrackHandle.product();   

   edm::Handle<reco::BeamSpot> theBeamSpotHandle;
   iEvent.getByToken(token_beamSpot, theBeamSpotHandle);
   const reco::BeamSpot* theBeamSpot = theBeamSpotHandle.product();
   math::XYZPoint referencePos(theBeamSpot->position());
  
   reco::Vertex referenceVtx;
   if (useVertex_) {
      edm::Handle<std::vector<reco::Vertex>> vertices;
      iEvent.getByToken(token_vertices, vertices);
      referenceVtx = vertices->at(0);
      referencePos = referenceVtx.position();
   }

   edm::ESHandle<MagneticField> theMagneticFieldHandle;
   iSetup.get<IdealMagneticFieldRecord>().get(theMagneticFieldHandle);
   const MagneticField* theMagneticField = theMagneticFieldHandle.product();

   std::vector<reco::TrackRef> theTrackRefs;
   std::vector<reco::TransientTrack> theTransTracks;

   // fill vectors of TransientTracks and TrackRefs after applying preselection cuts
   for (reco::TrackCollection::const_iterator iTk = theTrackCollection->begin(); iTk != theTrackCollection->end(); ++iTk) {
      const reco::Track* tmpTrack = &(*iTk);
      double ipsigXY = std::abs(tmpTrack->dxy(*theBeamSpot)/tmpTrack->dxyError());
      if (useVertex_) ipsigXY = std::abs(tmpTrack->dxy(referencePos)/tmpTrack->dxyError());
      double ipsigZ = std::abs(tmpTrack->dz(referencePos)/tmpTrack->dzError());
      if (tmpTrack->normalizedChi2() < tkChi2Cut_ && tmpTrack->numberOfValidHits() >= tkNHitsCut_ &&
          tmpTrack->pt() > tkPtCut_ && ipsigXY > tkIPSigXYCut_ && ipsigZ > tkIPSigZCut_) {
         reco::TrackRef tmpRef(theTrackHandle, std::distance(theTrackCollection->begin(), iTk));
         theTrackRefs.push_back(std::move(tmpRef));
         reco::TransientTrack tmpTransient(*tmpRef, theMagneticField);
         theTransTracks.push_back(std::move(tmpTransient));
      }
   }
   // good tracks have now been selected for vertexing

   // loop over tracks and vertex good charged track pairs
   for (unsigned int trdx1 = 0; trdx1 < theTrackRefs.size(); ++trdx1) {
   for (unsigned int trdx2 = trdx1 + 1; trdx2 < theTrackRefs.size(); ++trdx2) {

      reco::TrackRef positiveTrackRef;
      reco::TrackRef negativeTrackRef;
      reco::TransientTrack* posTransTkPtr = nullptr;
      reco::TransientTrack* negTransTkPtr = nullptr;

      if (theTrackRefs[trdx1]->charge() < 0. && theTrackRefs[trdx2]->charge() > 0.) {
         negativeTrackRef = theTrackRefs[trdx1];
         positiveTrackRef = theTrackRefs[trdx2];
         negTransTkPtr = &theTransTracks[trdx1];
         posTransTkPtr = &theTransTracks[trdx2];
      } else if (theTrackRefs[trdx1]->charge() > 0. && theTrackRefs[trdx2]->charge() < 0.) {
         negativeTrackRef = theTrackRefs[trdx2];
         positiveTrackRef = theTrackRefs[trdx1];
         negTransTkPtr = &theTransTracks[trdx2];
         posTransTkPtr = &theTransTracks[trdx1];
      } else {
         continue;
      }

      // measure distance between tracks at their closest approach
      if (!posTransTkPtr->impactPointTSCP().isValid() || !negTransTkPtr->impactPointTSCP().isValid()) continue;
      FreeTrajectoryState const & posState = posTransTkPtr->impactPointTSCP().theState();
      FreeTrajectoryState const & negState = negTransTkPtr->impactPointTSCP().theState();
      ClosestApproachInRPhi cApp;
      cApp.calculate(posState, negState);
      if (!cApp.status()) continue;
      float dca = std::abs(cApp.distance());
      if (dca > tkDCACut_) continue;

      // the POCA should at least be in the sensitive volume
      GlobalPoint cxPt = cApp.crossingPoint();
      if (sqrt(cxPt.x()*cxPt.x() + cxPt.y()*cxPt.y()) > 120. || std::abs(cxPt.z()) > 300.) continue;

      // the tracks should at least point in the same quadrant
      TrajectoryStateClosestToPoint const & posTSCP = posTransTkPtr->trajectoryStateClosestToPoint(cxPt);
      TrajectoryStateClosestToPoint const & negTSCP = negTransTkPtr->trajectoryStateClosestToPoint(cxPt);
      if (!posTSCP.isValid() || !negTSCP.isValid()) continue;
      if (posTSCP.momentum().dot(negTSCP.momentum())  < 0) continue;
     
      // calculate mPiPi
      double totalE = sqrt(posTSCP.momentum().mag2() + piMassSquared) + sqrt(negTSCP.momentum().mag2() + piMassSquared);
      double totalESq = totalE*totalE;
      double totalPSq = (posTSCP.momentum() + negTSCP.momentum()).mag2();
      double mass = sqrt(totalESq - totalPSq);
      if (mass > mPiPiCut_) continue;

      // Fill the vector of TransientTracks to send to KVF
      std::vector<reco::TransientTrack> transTracks;
      transTracks.reserve(2);
      transTracks.push_back(*posTransTkPtr);
      transTracks.push_back(*negTransTkPtr);

      // create the vertex fitter object and vertex the tracks
      TransientVertex theRecoVertex;
      if (vertexFitter_) {
         KalmanVertexFitter theKalmanFitter(useRefTracks_ == 0 ? false : true);
         theRecoVertex = theKalmanFitter.vertex(transTracks);
      } else if (!vertexFitter_) {
         useRefTracks_ = false;
         AdaptiveVertexFitter theAdaptiveFitter;
         theRecoVertex = theAdaptiveFitter.vertex(transTracks);
      }
      if (!theRecoVertex.isValid()) continue;
     
      reco::Vertex theVtx = theRecoVertex;
      if (theVtx.normalizedChi2() > vtxChi2Cut_) continue;
      GlobalPoint vtxPos(theVtx.x(), theVtx.y(), theVtx.z());

      // 2D decay significance
      SMatrixSym3D totalCov = theBeamSpot->rotatedCovariance3D() + theVtx.covariance();
      if (useVertex_) totalCov = referenceVtx.covariance() + theVtx.covariance();
      SVector3 distVecXY(vtxPos.x()-referencePos.x(), vtxPos.y()-referencePos.y(), 0.);
      double distMagXY = ROOT::Math::Mag(distVecXY);
      double sigmaDistMagXY = sqrt(ROOT::Math::Similarity(totalCov, distVecXY)) / distMagXY;
      if (distMagXY/sigmaDistMagXY < vtxDecaySigXYCut_) continue;

      // 3D decay significance
      SVector3 distVecXYZ(vtxPos.x()-referencePos.x(), vtxPos.y()-referencePos.y(), vtxPos.z()-referencePos.z());
      double distMagXYZ = ROOT::Math::Mag(distVecXYZ);
      double sigmaDistMagXYZ = sqrt(ROOT::Math::Similarity(totalCov, distVecXYZ)) / distMagXYZ;
      if (distMagXYZ/sigmaDistMagXYZ < vtxDecaySigXYZCut_) continue;

      // make sure the vertex radius is within the inner track hit radius
      if (innerHitPosCut_ > 0. && positiveTrackRef->innerOk()) {
         reco::Vertex::Point posTkHitPos = positiveTrackRef->innerPosition();
         double posTkHitPosD2 =  (posTkHitPos.x()-referencePos.x())*(posTkHitPos.x()-referencePos.x()) +
            (posTkHitPos.y()-referencePos.y())*(posTkHitPos.y()-referencePos.y());
         if (sqrt(posTkHitPosD2) < (distMagXY - sigmaDistMagXY*innerHitPosCut_)) continue;
      }
      if (innerHitPosCut_ > 0. && negativeTrackRef->innerOk()) {
         reco::Vertex::Point negTkHitPos = negativeTrackRef->innerPosition();
         double negTkHitPosD2 = (negTkHitPos.x()-referencePos.x())*(negTkHitPos.x()-referencePos.x()) +
            (negTkHitPos.y()-referencePos.y())*(negTkHitPos.y()-referencePos.y());
         if (sqrt(negTkHitPosD2) < (distMagXY - sigmaDistMagXY*innerHitPosCut_)) continue;
      }
      
      std::auto_ptr<TrajectoryStateClosestToPoint> trajPlus;
      std::auto_ptr<TrajectoryStateClosestToPoint> trajMins;
      std::vector<reco::TransientTrack> theRefTracks;
      if (theRecoVertex.hasRefittedTracks()) {
         theRefTracks = theRecoVertex.refittedTracks();
      }

      if (useRefTracks_ && theRefTracks.size() > 1) {
         reco::TransientTrack* thePositiveRefTrack = 0;
         reco::TransientTrack* theNegativeRefTrack = 0;
         for (std::vector<reco::TransientTrack>::iterator iTrack = theRefTracks.begin(); iTrack != theRefTracks.end(); ++iTrack) {
            if (iTrack->track().charge() > 0.) {
               thePositiveRefTrack = &*iTrack;
            } else if (iTrack->track().charge() < 0.) {
               theNegativeRefTrack = &*iTrack;
            }
         }
         if (thePositiveRefTrack == 0 || theNegativeRefTrack == 0) continue;
         trajPlus.reset(new TrajectoryStateClosestToPoint(thePositiveRefTrack->trajectoryStateClosestToPoint(vtxPos)));
         trajMins.reset(new TrajectoryStateClosestToPoint(theNegativeRefTrack->trajectoryStateClosestToPoint(vtxPos)));
      } else {
         trajPlus.reset(new TrajectoryStateClosestToPoint(posTransTkPtr->trajectoryStateClosestToPoint(vtxPos)));
         trajMins.reset(new TrajectoryStateClosestToPoint(negTransTkPtr->trajectoryStateClosestToPoint(vtxPos)));
      }

      if (trajPlus.get() == 0 || trajMins.get() == 0 || !trajPlus->isValid() || !trajMins->isValid()) continue;

      GlobalVector positiveP(trajPlus->momentum());
      GlobalVector negativeP(trajMins->momentum());
      GlobalVector totalP(positiveP + negativeP);

      // 2D pointing angle
      double dx = theVtx.x()-referencePos.x();
      double dy = theVtx.y()-referencePos.y();
      double px = totalP.x();
      double py = totalP.y();
      double angleXY = (dx*px+dy*py)/(sqrt(dx*dx+dy*dy)*sqrt(px*px+py*py));
      if (angleXY < cosThetaXYCut_) continue;

      // 3D pointing angle
      double dz = theVtx.z()-referencePos.z();
      double pz = totalP.z();
      double angleXYZ = (dx*px+dy*py+dz*pz)/(sqrt(dx*dx+dy*dy+dz*dz)*sqrt(px*px+py*py+pz*pz));
      if (angleXYZ < cosThetaXYZCut_) continue;

      // calculate total energy of V0 3 ways: assume it's a kShort, a Lambda, or a LambdaBar.
      double piPlusE = sqrt(positiveP.mag2() + piMassSquared);
      double piMinusE = sqrt(negativeP.mag2() + piMassSquared);
      double protonE = sqrt(positiveP.mag2() + protonMassSquared);
      double antiProtonE = sqrt(negativeP.mag2() + protonMassSquared);
      double kShortETot = piPlusE + piMinusE;
      double lambdaEtot = protonE + piMinusE;
      double lambdaBarEtot = antiProtonE + piPlusE;

      // Create momentum 4-vectors for the 3 candidate types
      const reco::Particle::LorentzVector kShortP4(totalP.x(), totalP.y(), totalP.z(), kShortETot);
      const reco::Particle::LorentzVector lambdaP4(totalP.x(), totalP.y(), totalP.z(), lambdaEtot);
      const reco::Particle::LorentzVector lambdaBarP4(totalP.x(), totalP.y(), totalP.z(), lambdaBarEtot);

      reco::Particle::Point vtx(theVtx.x(), theVtx.y(), theVtx.z());
      const reco::Vertex::CovarianceMatrix vtxCov(theVtx.covariance());
      double vtxChi2(theVtx.chi2());
      double vtxNdof(theVtx.ndof());

      // Create the VertexCompositeCandidate object that will be stored in the Event
      reco::VertexCompositeCandidate* theKshort = nullptr;
      reco::VertexCompositeCandidate* theLambda = nullptr;
      reco::VertexCompositeCandidate* theLambdaBar = nullptr;

      if (doKShorts_) {
         theKshort = new reco::VertexCompositeCandidate(0, kShortP4, vtx, vtxCov, vtxChi2, vtxNdof);
      }
      if (doLambdas_) {
         if (positiveP.mag2() > negativeP.mag2()) {
            theLambda = new reco::VertexCompositeCandidate(0, lambdaP4, vtx, vtxCov, vtxChi2, vtxNdof);
         } else {
            theLambdaBar = new reco::VertexCompositeCandidate(0, lambdaBarP4, vtx, vtxCov, vtxChi2, vtxNdof);
         }
      }

      // Create daughter candidates for the VertexCompositeCandidates
      reco::RecoChargedCandidate thePiPlusCand(
         1, reco::Particle::LorentzVector(positiveP.x(), positiveP.y(), positiveP.z(), piPlusE), vtx);
      thePiPlusCand.setTrack(positiveTrackRef);
      
      reco::RecoChargedCandidate thePiMinusCand(
         -1, reco::Particle::LorentzVector(negativeP.x(), negativeP.y(), negativeP.z(), piMinusE), vtx);
      thePiMinusCand.setTrack(negativeTrackRef);
      
      reco::RecoChargedCandidate theProtonCand(
         1, reco::Particle::LorentzVector(positiveP.x(), positiveP.y(), positiveP.z(), protonE), vtx);
      theProtonCand.setTrack(positiveTrackRef);

      reco::RecoChargedCandidate theAntiProtonCand(
         -1, reco::Particle::LorentzVector(negativeP.x(), negativeP.y(), negativeP.z(), antiProtonE), vtx);
      theAntiProtonCand.setTrack(negativeTrackRef);

      AddFourMomenta addp4;
      // Store the daughter Candidates in the VertexCompositeCandidates if they pass mass cuts
      if (doKShorts_) {
         theKshort->addDaughter(thePiPlusCand);
         theKshort->addDaughter(thePiMinusCand);
         theKshort->setPdgId(310);
         addp4.set(*theKshort);
         if (theKshort->mass() < kShortMass + kShortMassCut_ && theKshort->mass() > kShortMass - kShortMassCut_) {
            theKshorts.push_back(std::move(*theKshort));
         }
      }
      if (doLambdas_ && theLambda) {
         theLambda->addDaughter(theProtonCand);
         theLambda->addDaughter(thePiMinusCand);
         theLambda->setPdgId(3122);
         addp4.set( *theLambda );
         if (theLambda->mass() < lambdaMass + lambdaMassCut_ && theLambda->mass() > lambdaMass - lambdaMassCut_) {
            theLambdas.push_back(std::move(*theLambda));
         }
      } else if (doLambdas_ && theLambdaBar) {
         theLambdaBar->addDaughter(theAntiProtonCand);
         theLambdaBar->addDaughter(thePiPlusCand);
         theLambdaBar->setPdgId(-3122);
         addp4.set(*theLambdaBar);
         if (theLambdaBar->mass() < lambdaMass + lambdaMassCut_ && theLambdaBar->mass() > lambdaMass - lambdaMassCut_) {
            theLambdas.push_back(std::move(*theLambdaBar));
         }
      }

      delete theKshort;
      delete theLambda;
      delete theLambdaBar;
      theKshort = theLambda = theLambdaBar = nullptr;

    }
  }
}

Member Data Documentation

double V0Fitter::cosThetaXYCut_

private

Definition at line 68 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::cosThetaXYZCut_

private

Definition at line 69 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

bool V0Fitter::doKShorts_

private

Definition at line 51 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

bool V0Fitter::doLambdas_

private

Definition at line 52 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::innerHitPosCut_

private

Definition at line 67 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::kShortMassCut_

private

Definition at line 71 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::lambdaMassCut_

private

Definition at line 72 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::mPiPiCut_

private

Definition at line 66 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::tkChi2Cut_

private

Definition at line 55 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::tkDCACut_

private

Definition at line 65 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::tkIPSigXYCut_

private

Definition at line 58 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::tkIPSigZCut_

private

Definition at line 59 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

int V0Fitter::tkNHitsCut_

private

Definition at line 56 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::tkPtCut_

private

Definition at line 57 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

edm::EDGetTokenT<reco::BeamSpot> V0Fitter::token_beamSpot

private

Definition at line 75 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

edm::EDGetTokenT<reco::TrackCollection> V0Fitter::token_tracks

private

Definition at line 74 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

edm::EDGetTokenT<std::vector<reco::Vertex> > V0Fitter::token_vertices

private

Definition at line 77 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

bool V0Fitter::useRefTracks_

private

Definition at line 50 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

bool V0Fitter::useVertex_

private

Definition at line 76 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

bool V0Fitter::vertexFitter_

private

Definition at line 49 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::vtxChi2Cut_

private

Definition at line 61 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::vtxDecaySigXYCut_

private

Definition at line 62 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().

double V0Fitter::vtxDecaySigXYZCut_

private

Definition at line 63 of file V0Fitter.h.

Referenced by fitAll(), and V0Fitter().