TwoBodyDecayFitter Class Reference

#include <TwoBodyDecayFitter.h>

Public Member Functions
virtual TwoBodyDecayFitter *	clone (void) const
virtual const TwoBodyDecay	estimate (const std::vector< reco::TransientTrack > &tracks, const TwoBodyDecayVirtualMeasurement &vm) const
virtual const TwoBodyDecay	estimate (const std::vector< reco::TransientTrack > &tracks, const std::vector< TrajectoryStateOnSurface > &tsos, const TwoBodyDecayVirtualMeasurement &vm) const
const TwoBodyDecayEstimator *	estimator (void) const
const TwoBodyDecayLinearizationPointFinder *	linearizationPointFinder (void) const
	TwoBodyDecayFitter (const edm::ParameterSet &config)
	TwoBodyDecayFitter (const edm::ParameterSet &config, const LinearizationPointFinder *vf, const TwoBodyDecayLinearizationPointFinder *lpf, const TwoBodyDecayEstimator *est)
const LinearizationPointFinder *	vertexFinder (void) const
virtual	~TwoBodyDecayFitter (void)

Private Types
typedef PerigeeLinearizedTrackState::RefCountedLinearizedTrackState	RefCountedLinearizedTrackState

Private Attributes
DeepCopyPointerByClone< const TwoBodyDecayEstimator >	theEstimator
DeepCopyPointerByClone< const TwoBodyDecayLinearizationPointFinder >	theLinPointFinder
LinearizedTrackStateFactory	theLinTrackStateFactory
DeepCopyPointerByClone< const LinearizationPointFinder >	theVertexFinder

Detailed Description

/class TwoBodyDecayFitter

/author Edmund Widl

Definition at line 22 of file TwoBodyDecayFitter.h.

Member Typedef Documentation

typedef PerigeeLinearizedTrackState::RefCountedLinearizedTrackState TwoBodyDecayFitter::RefCountedLinearizedTrackState

private

Definition at line 51 of file TwoBodyDecayFitter.h.

Constructor & Destructor Documentation

TwoBodyDecayFitter::TwoBodyDecayFitter

(

const edm::ParameterSet &

config

)

Definition at line 3 of file TwoBodyDecayFitter.cc.

Referenced by clone().

                                                                       :
  theVertexFinder( new DefaultLinearizationPointFinder() ),
  theLinPointFinder( new TwoBodyDecayLinearizationPointFinder( config ) ),
  theEstimator( new TwoBodyDecayEstimator( config ) ) {}

TwoBodyDecayFitter::TwoBodyDecayFitter	(	const edm::ParameterSet &	config,
		const LinearizationPointFinder *	vf,
		const TwoBodyDecayLinearizationPointFinder *	lpf,
		const TwoBodyDecayEstimator *	est
	)

Definition at line 9 of file TwoBodyDecayFitter.cc.

                                                       :
  theVertexFinder( vf->clone() ),
  theLinPointFinder( lpf->clone() ),
  theEstimator( est->clone() ) {}

TwoBodyDecayFitter::~TwoBodyDecayFitter ( void  )

virtual

Definition at line 18 of file TwoBodyDecayFitter.cc.

{}

Member Function Documentation

virtual TwoBodyDecayFitter* TwoBodyDecayFitter::clone ( void  ) const

inlinevirtual

Definition at line 47 of file TwoBodyDecayFitter.h.

References TwoBodyDecayFitter().

{ return new TwoBodyDecayFitter( *this ); }

const TwoBodyDecay TwoBodyDecayFitter::estimate ( const std::vector< reco::TransientTrack > &  tracks, const TwoBodyDecayVirtualMeasurement &  vm  ) const

virtual

Definition at line 21 of file TwoBodyDecayFitter.cc.

References TwoBodyDecayEstimator::estimate(), LinearizationPointFinder::getLinearizationPoint(), TwoBodyDecayLinearizationPointFinder::getLinearizationPoint(), LinearizedTrackStateFactory::linearizedTrackState(), TwoBodyDecayVirtualMeasurement::primaryMass(), TwoBodyDecayVirtualMeasurement::secondaryMass(), theEstimator, theLinPointFinder, theLinTrackStateFactory, and theVertexFinder.

Referenced by TwoBodyDecayTrajectoryFactory::trajectories().

{
  // get geometrical linearization point
  GlobalPoint linVertex = theVertexFinder->getLinearizationPoint( tracks );

  // create linearized track states
  std::vector< RefCountedLinearizedTrackState > linTracks;
  linTracks.push_back( theLinTrackStateFactory.linearizedTrackState( linVertex, tracks[0] ) );
  linTracks.push_back( theLinTrackStateFactory.linearizedTrackState( linVertex, tracks[1] ) );

  // get full linearization point (geomatrical & kinematical)
  const TwoBodyDecayParameters linPoint = theLinPointFinder->getLinearizationPoint( linTracks, vm.primaryMass(), vm.secondaryMass() );

  // make the fit
  return theEstimator->estimate( linTracks, linPoint, vm );
}

const TwoBodyDecay TwoBodyDecayFitter::estimate ( const std::vector< reco::TransientTrack > &  tracks, const std::vector< TrajectoryStateOnSurface > &  tsos, const TwoBodyDecayVirtualMeasurement &  vm  ) const

virtual

Definition at line 40 of file TwoBodyDecayFitter.cc.

References TwoBodyDecayEstimator::estimate(), LinearizationPointFinder::getLinearizationPoint(), TwoBodyDecayLinearizationPointFinder::getLinearizationPoint(), LinearizedTrackStateFactory::linearizedTrackState(), TwoBodyDecayVirtualMeasurement::primaryMass(), TwoBodyDecayVirtualMeasurement::secondaryMass(), theEstimator, theLinPointFinder, theLinTrackStateFactory, and theVertexFinder.

{
  // get geometrical linearization point
  std::vector< FreeTrajectoryState > freeTrajStates;
  freeTrajStates.push_back( *tsos[0].freeState() );
  freeTrajStates.push_back( *tsos[1].freeState() );
  GlobalPoint linVertex = theVertexFinder->getLinearizationPoint( freeTrajStates );

  // create linearized track states
  std::vector< RefCountedLinearizedTrackState > linTracks;
  linTracks.push_back( theLinTrackStateFactory.linearizedTrackState( linVertex, tracks[0], tsos[0] ) );
  linTracks.push_back( theLinTrackStateFactory.linearizedTrackState( linVertex, tracks[1], tsos[1] ) );

  // get full linearization point (geomatrical & kinematical)
  const TwoBodyDecayParameters linPoint = theLinPointFinder->getLinearizationPoint( linTracks, vm.primaryMass(), vm.secondaryMass() );

  // make the fit
  return theEstimator->estimate( linTracks, linPoint, vm );
}

const TwoBodyDecayEstimator* TwoBodyDecayFitter::estimator ( void  ) const

inline

Definition at line 44 of file TwoBodyDecayFitter.h.

References theEstimator.

{ return theEstimator.operator->(); }

const TwoBodyDecayLinearizationPointFinder* TwoBodyDecayFitter::linearizationPointFinder ( void  ) const

inline

Definition at line 43 of file TwoBodyDecayFitter.h.

References theLinPointFinder.

{ return theLinPointFinder.operator->(); }

const LinearizationPointFinder* TwoBodyDecayFitter::vertexFinder ( void  ) const

inline

Definition at line 45 of file TwoBodyDecayFitter.h.

References theVertexFinder.

{ return theVertexFinder.operator->(); }

Member Data Documentation

DeepCopyPointerByClone< const TwoBodyDecayEstimator > TwoBodyDecayFitter::theEstimator

private

Definition at line 55 of file TwoBodyDecayFitter.h.

Referenced by estimate(), and estimator().

DeepCopyPointerByClone< const TwoBodyDecayLinearizationPointFinder > TwoBodyDecayFitter::theLinPointFinder

private

Definition at line 54 of file TwoBodyDecayFitter.h.

Referenced by estimate(), and linearizationPointFinder().

LinearizedTrackStateFactory TwoBodyDecayFitter::theLinTrackStateFactory

private

Definition at line 57 of file TwoBodyDecayFitter.h.

Referenced by estimate().

DeepCopyPointerByClone< const LinearizationPointFinder > TwoBodyDecayFitter::theVertexFinder

private

Definition at line 53 of file TwoBodyDecayFitter.h.

Referenced by estimate(), and vertexFinder().