JetTracksAssociationDRVertex Class Reference

#include <JetTracksAssociationDRVertex.h>

Public Member Functions
	JetTracksAssociationDRVertex (double fDr)
void	produce (reco::JetTracksAssociation::Container *fAssociation, const std::vector< edm::RefToBase< reco::Jet > > &fJets, const std::vector< reco::TrackRef > &fTracks) const
	~JetTracksAssociationDRVertex ()

Private Attributes
double	mDeltaR2Threshold
	fidutial dR between track in the vertex and jet's reference direction More...

Detailed Description

Definition at line 10 of file JetTracksAssociationDRVertex.h.

Constructor & Destructor Documentation

JetTracksAssociationDRVertex::JetTracksAssociationDRVertex

(

double

fDr

)

Definition at line 13 of file JetTracksAssociationDRVertex.cc.

: mDeltaR2Threshold (fDr*fDr)
{}

JetTracksAssociationDRVertex::~JetTracksAssociationDRVertex ( )

inline

Definition at line 13 of file JetTracksAssociationDRVertex.h.

{}

Member Function Documentation

void JetTracksAssociationDRVertex::produce	(	reco::JetTracksAssociation::Container *	fAssociation,
		const std::vector< edm::RefToBase< reco::Jet > > &	fJets,
		const std::vector< reco::TrackRef > &	fTracks
	)		const

Definition at line 17 of file JetTracksAssociationDRVertex.cc.

References reco::deltaR2(), reco::TrackBase::eta(), eta(), reco::LeafCandidate::eta(), i, j, metsig::jet, reco::btau::jetEta, reco::btau::jetPhi, mDeltaR2Threshold, reco::TrackBase::p(), phi, reco::TrackBase::phi(), reco::LeafCandidate::phi(), edm::RefVector< C, T, F >::push_back(), reco::JetTracksAssociation::setValue(), and edmStreamStallGrapher::t.

Referenced by JetTracksAssociatorAtVertex::produce().

{
  // cache tracks kinematics
  std::vector <math::RhoEtaPhiVector> trackP3s;
  trackP3s.reserve (fTracks.size());
  for (unsigned i = 0; i < fTracks.size(); ++i) {
    const reco::Track* track = &*(fTracks[i]);
    trackP3s.push_back (math::RhoEtaPhiVector (track->p(),track->eta(), track->phi())); 
  }
  //loop on jets and associate
  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 < fTracks.size(); ++t) {
      double dR2 = deltaR2 (jetEta, jetPhi, trackP3s[t].eta(), trackP3s[t].phi());
      if (dR2 < mDeltaR2Threshold)  assoTracks.push_back (fTracks[t]);
    }
    reco::JetTracksAssociation::setValue (fAssociation, fJets[j], assoTracks);
  }
}

Member Data Documentation

double JetTracksAssociationDRVertex::mDeltaR2Threshold

private

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

Definition at line 20 of file JetTracksAssociationDRVertex.h.

Referenced by produce().