GroupedTrajCandLess Class Reference

#include <GroupedTrajCandLess.h>

Public Member Functions
	GroupedTrajCandLess (float p=5, float b=0)
template<typename T >
bool	operator() (const T &a, const T &b) const

Private Member Functions
template<typename T >
float	looperPenalty (const T &t) const
template<typename T >
float	score (const T &t) const

Private Attributes
float	bonus
float	penalty

Detailed Description

Defines an ordering of Trajectories in terms of "goodness" The comparison is done in terms of total chi**2 / ndf plus a penalty for "lost" hits.

Definition at line 13 of file GroupedTrajCandLess.h.

Constructor & Destructor Documentation

GroupedTrajCandLess::GroupedTrajCandLess ( float  p = 5, float  b = 0  )

inline

Definition at line 17 of file GroupedTrajCandLess.h.

: penalty(p), bonus(b) {}

Member Function Documentation

template<typename T >

float GroupedTrajCandLess::looperPenalty ( const T &  t ) const

inlineprivate

Definition at line 26 of file GroupedTrajCandLess.h.

References funct::cos(), and f.

                                       {
    return (t.dPhiCacheForLoopersReconstruction()==0) ? 0.f : 
     0.5f*(1.f-std::cos(t.dPhiCacheForLoopersReconstruction()))*penalty;
  }

template<typename T >

bool GroupedTrajCandLess::operator() ( const T &  a, const T &  b  ) const

inline

Definition at line 20 of file GroupedTrajCandLess.h.

References offlineSlimmedPrimaryVertices_cfi::score.

                                                 {
    return score(a) < score(b);
  }

template<typename T >

float GroupedTrajCandLess::score ( const T &  t ) const

inlineprivate

Definition at line 32 of file GroupedTrajCandLess.h.

References f.

  {
   auto bb = (t.dPhiCacheForLoopersReconstruction()==0 && t.foundHits()>8) ? 2*bonus : bonus; //extra bonus for long tracks not loopers
    if ( t.lastMeasurement().updatedState().globalMomentum().perp2() < 0.81f ) bb*=0.5f; 
    return t.chiSquared()-t.foundHits()*bb+t.lostHits()*penalty 
      + looperPenalty(t);
  }

Member Data Documentation

float GroupedTrajCandLess::bonus

private

Definition at line 43 of file GroupedTrajCandLess.h.

float GroupedTrajCandLess::penalty

private

Definition at line 42 of file GroupedTrajCandLess.h.