JetTracksAssociationDRCalo Class Reference

#include <JetTracksAssociationDRCalo.h>

List of all members.

Public Member Functions
	JetTracksAssociationDRCalo (double fDr)
void	produce (reco::JetTracksAssociation::Container *fAssociation, const std::vector< edm::RefToBase< reco::Jet > > &fJets, const std::vector< reco::TrackRef > &fTracks, const MagneticField &fField, const Propagator &fPropagator) const
	~JetTracksAssociationDRCalo ()
Static Public Member Functions
static math::XYZPoint	propagateTrackToCalorimeter (const reco::Track &fTrack, const MagneticField &fField, const Propagator &fPropagator)
	propagating the track to the Calorimeter
Private Attributes
double	mDeltaR2Threshold
	fidutial dR between track in the vertex and jet's reference direction

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Detailed Description

Definition at line 15 of file JetTracksAssociationDRCalo.h.

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Constructor & Destructor Documentation

JetTracksAssociationDRCalo::JetTracksAssociationDRCalo

(

double

fDr

)

Definition at line 107 of file JetTracksAssociationDRCalo.cc.

: mDeltaR2Threshold (fDr*fDr)
{}

JetTracksAssociationDRCalo::~JetTracksAssociationDRCalo

(

)

[inline]

Definition at line 18 of file JetTracksAssociationDRCalo.h.

{}

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Member Function Documentation

void JetTracksAssociationDRCalo::produce	(	reco::JetTracksAssociation::Container *	fAssociation,
		const std::vector< edm::RefToBase< reco::Jet > > &	fJets,
		const std::vector< reco::TrackRef > &	fTracks,
		const MagneticField &	fField,
		const Propagator &	fPropagator
	)		const

Definition at line 111 of file JetTracksAssociationDRCalo.cc.

References PV3DBase< T, PVType, FrameType >::barePhi(), Geom::deltaR2(), eta, reco::LeafCandidate::eta(), PV3DBase< T, PVType, FrameType >::eta(), spr::goodTrack(), getHLTprescales::index, j, metsig::jet, reco::btau::jetEta, reco::btau::jetPhi, PV3DBase< T, PVType, FrameType >::mag(), mDeltaR2Threshold, reco::LeafCandidate::phi(), phi, edm::RefVector< C, T, F >::push_back(), reco::JetExtendedAssociation::setValue(), and lumiQTWidget::t.

{
  // cache track parameters
  std::vector<ImpactPoint> impacts;
  for (unsigned t = 0; t < fTracks.size(); ++t) {
    GlobalPoint impact = propagateTrackToCalo (*(fTracks[t]), fField, fPropagator);
    if (impact.mag () > 0) { // successful extrapolation
      ImpactPoint goodTrack;
      goodTrack.index = t;
      goodTrack.eta = impact.eta ();
      goodTrack.phi = impact.barePhi();
      impacts.push_back (goodTrack);
    }
  }
  
  for (unsigned j = 0; j < fJets.size(); ++j) {
    reco::TrackRefVector assoTracks;
    const reco::Jet* jet = &*(fJets[j]); 
    double jetEta = jet->eta();
    double jetPhi = jet->phi();
    for (unsigned t = 0; t < impacts.size(); ++t) {
      double dR2 = deltaR2 (jetEta, jetPhi, impacts[t].eta, impacts[t].phi);
      if (dR2 < mDeltaR2Threshold)  assoTracks.push_back (fTracks[impacts[t].index]);
    }
    reco::JetTracksAssociation::setValue (fAssociation, fJets[j], assoTracks);
  }
}

math::XYZPoint JetTracksAssociationDRCalo::propagateTrackToCalorimeter	(	const reco::Track &	fTrack,
		const MagneticField &	fField,
		const Propagator &	fPropagator
	)		[static]

propagating the track to the Calorimeter

Definition at line 143 of file JetTracksAssociationDRCalo.cc.

References query::result, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by jptJetAnalysis::TrackPropagatorToCalo::impactPoint().

{
  GlobalPoint result (propagateTrackToCalo (fTrack, fField, fPropagator));
  return math::XYZPoint (result.x(), result.y(), result.z()); 
}

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Member Data Documentation

double JetTracksAssociationDRCalo::mDeltaR2Threshold [private]

fidutial dR between track in the vertex and jet's reference direction

Definition at line 32 of file JetTracksAssociationDRCalo.h.

Referenced by produce().