VertexHigherPtSquared Class Reference

#include <VertexHigherPtSquared.h>

Public Member Functions
bool	operator() (const TransientVertex &v1, const TransientVertex &v2) const
bool	operator() (const reco::Vertex &v1, const reco::Vertex &v2) const
double	sumPtSquared (const reco::Vertex &v) const
double	sumPtSquared (const std::vector< reco::TransientTrack > &tks) const

Detailed Description

operator for sorting TransientVertex objects in decreasing order of the sum of the squared track pT's

Definition at line 13 of file VertexHigherPtSquared.h.

Member Function Documentation

bool VertexHigherPtSquared::operator()	(	const TransientVertex &	v1,
		const TransientVertex &	v2
	)		const

Definition at line 5 of file VertexHigherPtSquared.cc.

References TransientVertex::originalTracks().

                                                                                                 {
  //  return (sumPtSquared(v1) > sumPtSquared(v2));  V-01-05-02
  const std::vector<reco::TransientTrack>& tks1 = v1.originalTracks();
  const std::vector<reco::TransientTrack>& tks2 = v2.originalTracks();
  return (sumPtSquared(tks1) > sumPtSquared(tks2));
}

bool VertexHigherPtSquared::operator()	(	const reco::Vertex &	v1,
		const reco::Vertex &	v2
	)		const

Definition at line 12 of file VertexHigherPtSquared.cc.

                                                                               {
  return (sumPtSquared(v1) > sumPtSquared(v2));
}

double VertexHigherPtSquared::sumPtSquared

(

const reco::Vertex &

v

)

const

Definition at line 16 of file VertexHigherPtSquared.cc.

References PVValHelper::pT, reco::Vertex::tracks_begin(), and reco::Vertex::tracks_end().

                                                                {
  double sum = 0.;
  double pT;
  for (Vertex::trackRef_iterator it = v.tracks_begin(); it != v.tracks_end(); it++) {
    pT = (**it).pt();
    double epT = (**it).ptError();
    pT = pT > epT ? pT - epT : 0;

    sum += pT * pT;
  }
  return sum;
}

double VertexHigherPtSquared::sumPtSquared

(

const std::vector< reco::TransientTrack > &

tks

)

const

Definition at line 29 of file VertexHigherPtSquared.cc.

References DiDispStaMuonMonitor_cfi::pt, and PVValHelper::pT.

                                                                                         {
  double sum = 0.;
  for (std::vector<reco::TransientTrack>::const_iterator it = tks.begin(); it != tks.end(); it++) {
    double pT = (it->track()).pt();
    double epT = (it->track()).ptError();
    pT = pT > epT ? pT - epT : 0;

    sum += pT * pT;
  }
  return sum;
}