#include <VertexTrack.h>

Inheritance diagram for VertexTrack< N >:

Public Types
typedef ROOT::Math::SMatrix < double, 3, N-2, ROOT::Math::MatRepStd< double, 3, N-2 > >	AlgebraicMatrix3M
typedef ROOT::Math::SMatrix < double, N-2, N-2, ROOT::Math::MatRepStd< double, N-2, N-2 > >	AlgebraicMatrixMM
typedef ROOT::Math::SMatrix < double, N+1, N+1, ROOT::Math::MatRepSym< double, N+1 > >	AlgebraicSymMatrixOO
typedef ROOT::Math::SVector < double, N >	AlgebraicVectorN
typedef ReferenceCountingPointer < LinearizedTrackState< N > >	RefCountedLinearizedTrackState
typedef ReferenceCountingPointer < RefittedTrackState< N > >	RefCountedRefittedTrackState
Public Member Functions
AlgebraicSymMatrixOO	fullCovariance () const
bool	fullCovarianceAvailable () const
RefCountedLinearizedTrackState	linearizedTrack () const
bool	operator== (const VertexTrack< N > &data) const
AlgebraicVectorN	refittedParamFromEquation () const
RefCountedRefittedTrackState	refittedState () const
bool	refittedStateAvailable () const
float	smoothedChi2 () const
bool	tkToVertexCovarianceAvailable () const
VertexState	vertexState () const
	VertexTrack (const RefCountedLinearizedTrackState lt, const VertexState v, float weight)
	VertexTrack (const RefCountedLinearizedTrackState lt, const VertexState v, float weight, const RefCountedRefittedTrackState &refittedState, float smoothedChi2)
	VertexTrack (const RefCountedLinearizedTrackState lt, const VertexState v, float weight, const RefCountedRefittedTrackState &refittedState, float smoothedChi2, const AlgebraicSymMatrixOO &fullCov)
float	weight () const
Private Attributes
ROOT::Math::SMatrix< double, 6, 6, ROOT::Math::MatRepSym < double, 6 > >	b6
ROOT::Math::SMatrix< double, 7, 7, ROOT::Math::MatRepSym < double, 7 > >	b7
bool	covAvailable
AlgebraicSymMatrixOO	fullCovariance_
float	smoothedChi2_
bool	stAvailable
RefCountedLinearizedTrackState	theLinTrack
RefCountedRefittedTrackState	theRefittedState
VertexState	theVertexState
float	theWeight

Detailed Description

template<unsigned int N>
class VertexTrack< N >

Track information relative to a track-to-vertex association. The track weight corresponds to the distance of the track to the seed position.

Definition at line 17 of file VertexTrack.h.

Member Typedef Documentation

template<unsigned int N>

typedef ROOT::Math::SMatrix<double,3,N-2,ROOT::Math::MatRepStd<double,3,N-2> > VertexTrack< N >::AlgebraicMatrix3M

Definition at line 23 of file VertexTrack.h.

template<unsigned int N>

typedef ROOT::Math::SMatrix<double,N-2,N-2,ROOT::Math::MatRepStd<double,N-2,N-2> > VertexTrack< N >::AlgebraicMatrixMM

Definition at line 22 of file VertexTrack.h.

template<unsigned int N>

typedef ROOT::Math::SMatrix<double,N+1,N+1,ROOT::Math::MatRepSym<double,N+1> > VertexTrack< N >::AlgebraicSymMatrixOO

Definition at line 24 of file VertexTrack.h.

template<unsigned int N>

typedef ROOT::Math::SVector<double,N> VertexTrack< N >::AlgebraicVectorN

Definition at line 21 of file VertexTrack.h.

template<unsigned int N>

typedef ReferenceCountingPointer<LinearizedTrackState<N> > VertexTrack< N >::RefCountedLinearizedTrackState

Definition at line 27 of file VertexTrack.h.

template<unsigned int N>

typedef ReferenceCountingPointer<RefittedTrackState<N> > VertexTrack< N >::RefCountedRefittedTrackState

Definition at line 28 of file VertexTrack.h.

Constructor & Destructor Documentation

template<unsigned int N>

VertexTrack< N >::VertexTrack	(	const RefCountedLinearizedTrackState	lt,
		const VertexState	v,
		float	weight
	)

Constructor with the linearized track data, vertex seed and weight

Definition at line 5 of file VertexTrack.cc.

  : theLinTrack(lt), theVertexState(v), theWeight(weight),
    stAvailable(false), covAvailable(false), smoothedChi2_(-1.) {}

template<unsigned int N>

VertexTrack< N >::VertexTrack	(	const RefCountedLinearizedTrackState	lt,
		const VertexState	v,
		float	weight,
		const RefCountedRefittedTrackState &	refittedState,
		float	smoothedChi2
	)

Constructor with the linearized track data, vertex seed and weight and state at vertex, constrained by vertex

Definition at line 13 of file VertexTrack.cc.

  : theLinTrack(lt), theVertexState(v), theWeight(weight),
    stAvailable(true), covAvailable(false), theRefittedState(refittedState),
    smoothedChi2_(smoothedChi2) {}

template<unsigned int N>

VertexTrack< N >::VertexTrack	(	const RefCountedLinearizedTrackState	lt,
		const VertexState	v,
		float	weight,
		const RefCountedRefittedTrackState &	refittedState,
		float	smoothedChi2,
		const AlgebraicSymMatrixOO &	fullCov
	)

Constructor with the linearized track data, vertex seed and weight and state and covariance at vertex, constrained by vertex

Definition at line 23 of file VertexTrack.cc.

  : theLinTrack(lt), theVertexState(v), theWeight(weight),
    stAvailable(true), covAvailable(true), 
    theRefittedState(refittedState), fullCovariance_(fullCov),
    smoothedChi2_(smoothedChi2) {}

Member Function Documentation

template<unsigned int N>

AlgebraicSymMatrixOO VertexTrack< N >::fullCovariance ( ) const [inline]

Track to vertex covariance Track to vertex covariance

Definition at line 85 of file VertexTrack.h.

References VertexTrack< N >::fullCovariance_, and VertexTrack< N >::tkToVertexCovarianceAvailable().

                                              {
    if (!tkToVertexCovarianceAvailable()) {
      throw VertexException("VertexTrack::track to vertex covariance not available"); 
    }
    return fullCovariance_;
  }

template<unsigned int N>

bool VertexTrack< N >::fullCovarianceAvailable ( ) const [inline]

Definition at line 59 of file VertexTrack.h.

References VertexTrack< N >::covAvailable.

{ return covAvailable; }

template<unsigned int N>

RefCountedLinearizedTrackState VertexTrack< N >::linearizedTrack ( ) const [inline]

Access methods

Definition at line 54 of file VertexTrack.h.

References VertexTrack< N >::theLinTrack.

Referenced by VertexTrack< N >::operator==().

{ return theLinTrack; }

template<unsigned int N>

bool VertexTrack< N >::operator== ( const VertexTrack< N > & data ) const [inline]

Equality for finding a VertexTrack in a container Compares the RecTrack addresses

Definition at line 95 of file VertexTrack.h.

References VertexTrack< N >::linearizedTrack().

  {
    return ((*data.linearizedTrack()) == (*linearizedTrack()));
  }

template<unsigned int N>

VertexTrack< N >::AlgebraicVectorN VertexTrack< N >::refittedParamFromEquation ( ) const

Method helping Kalman vertex fit

Definition at line 34 of file VertexTrack.cc.

{
  return linearizedTrack()->refittedParamFromEquation(theRefittedState);
}

template<unsigned int N>

RefCountedRefittedTrackState VertexTrack< N >::refittedState ( ) const [inline]

Track state with vertex constraint

Definition at line 72 of file VertexTrack.h.

References VertexTrack< N >::refittedStateAvailable(), and VertexTrack< N >::theRefittedState.

                                                     { 
    if (!refittedStateAvailable()) { 
      throw VertexException("VertexTrack::refitted state not available"); 
    }
    return theRefittedState;
  }

template<unsigned int N>

bool VertexTrack< N >::refittedStateAvailable ( ) const [inline]

Definition at line 57 of file VertexTrack.h.

References VertexTrack< N >::stAvailable.

Referenced by VertexTrack< N >::refittedState().

{ return stAvailable; }

template<unsigned int N>

float VertexTrack< N >::smoothedChi2 ( ) const [inline]

The smoother track-chi2 (can be used to test the track-vertex compatibility). Its value has a meaning only if the smoother has been run after the vertex fit (track-refit) . Otherwise, the value returned is -1.

Definition at line 67 of file VertexTrack.h.

References VertexTrack< N >::smoothedChi2_.