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

inline

Definition at line 15 of file GroupedTrajCandLess.h.

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

Member Function Documentation

looperPenalty()

template<typename T >

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

inlineprivate

Definition at line 24 of file GroupedTrajCandLess.h.

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

References funct::cos(), f, and OrderedSet::t.

operator()()

template<typename T >

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

inline

Definition at line 18 of file GroupedTrajCandLess.h.

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

References a, b, and offlineSlimmedPrimaryVertices_cfi::score.

score()

template<typename T >

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

inlineprivate

Definition at line 31 of file GroupedTrajCandLess.h.

                                {
    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);
  }

References f, and OrderedSet::t.

Member Data Documentation

bonus

float GroupedTrajCandLess::bonus

private

Definition at line 42 of file GroupedTrajCandLess.h.

penalty

float GroupedTrajCandLess::penalty

private

Definition at line 41 of file GroupedTrajCandLess.h.