KinematicState Class Reference

#include <KinematicState.h>

Public Member Functions
FreeTrajectoryState	freeTrajectoryState () const
GlobalVector	globalMomentum () const
GlobalPoint	globalPosition () const
bool	isValid () const
KinematicParameters const &	kinematicParameters () const
KinematicParametersError const &	kinematicParametersError () const
	KinematicState ()
	KinematicState (const KinematicParameters &parameters, const KinematicParametersError &error, const TrackCharge &charge, const MagneticField *field)
const MagneticField *	magneticField () const
ParticleMass	mass () const
bool	operator== (const KinematicState &other) const
TrackCharge	particleCharge () const

Private Attributes
TrackCharge	ch
KinematicParametersError	err
KinematicParameters	param
const MagneticField *	theField
bool	vl

Detailed Description

Class providing a state of particle needed for Kinematic Fit.

Kirill Prokofiev, March 2003

Definition at line 18 of file KinematicState.h.

Constructor & Destructor Documentation

KinematicState::KinematicState ( )

inline

Default constructor for internal KinematicFitPrimitives library needs only

Definition at line 27 of file KinematicState.h.

References vl.

 {vl = false;}

KinematicState::KinematicState	(	const KinematicParameters &	parameters,
		const KinematicParametersError &	error,
		const TrackCharge &	charge,
		const MagneticField *	field
	)

Constructor taking directly KinematicParameters KinematicError and Charge. To be used with proper KinematicStateBuilder.

Definition at line 4 of file KinematicState.cc.

                                :
    theField(field), param(parameters),err(error), ch(charge), vl(true)
{}

Member Function Documentation

FreeTrajectoryState KinematicState::freeTrajectoryState

(

)

const

KinematicState -> FreeTrajectoryState converter

Definition at line 20 of file KinematicState.cc.

References globalMomentum(), globalPosition(), kinematicParametersError(), KinematicParametersError::matrix(), particleCharge(), and theField.

Referenced by KinematicRefittedTrackState::freeTrajectoryState(), PerigeeKinematicState::PerigeeKinematicState(), TrackKinematicStatePropagator::propagateToTheTransversePCACharged(), and TrackKinematicStatePropagator::propagateToTheTransversePCANeutral().

{
 GlobalTrajectoryParameters globalPar(globalPosition(), globalMomentum(),
    particleCharge(), theField);
 AlgebraicSymMatrix66 cError =
    kinematicParametersError().matrix().Sub<AlgebraicSymMatrix66>(0,0);
 CartesianTrajectoryError cartError(cError);
// cout<<"conversion called"<<endl;
// cout<<"parameters::position"<<globalPosition()<<endl;
// cout<<"parameters::momentum"<<globalMomentum()<<endl;
// cout<<"parameters::error"<<cError<<endl;
 return FreeTrajectoryState(globalPar,cartError);
}

GlobalVector KinematicState::globalMomentum ( ) const

inline

Definition at line 55 of file KinematicState.h.

References KinematicParameters::momentum(), and param.

Referenced by ParticleKinematicLinearizedTrackState::computeChargedJacobians(), ParticleKinematicLinearizedTrackState::computeNeutralJacobians(), KinematicPerigeeConversions::extendedPerigeeFromKinematicParameters(), freeTrajectoryState(), KinematicRefittedTrackState::kinematicMomentumVector(), TrackKinematicStatePropagator::propagateToTheTransversePCACharged(), and TrackKinematicStatePropagator::propagateToTheTransversePCANeutral().

{return param.momentum();}

GlobalPoint KinematicState::globalPosition ( ) const

inline

Definition at line 57 of file KinematicState.h.

References param, and KinematicParameters::position().

Referenced by ParticleKinematicLinearizedTrackState::computeChargedJacobians(), ParticleKinematicLinearizedTrackState::computeNeutralJacobians(), KinematicPerigeeConversions::extendedPerigeeFromKinematicParameters(), freeTrajectoryState(), KinematicRefittedTrackState::parameters(), KinematicRefittedTrackState::position(), TrackKinematicStatePropagator::propagateToTheTransversePCACharged(), and TrackKinematicStatePropagator::propagateToTheTransversePCANeutral().

{return param.position();}

bool KinematicState::isValid ( void  ) const

inline

Definition at line 69 of file KinematicState.h.

References vl.

Referenced by KinematicConstrainedVertexFitter::fit(), KinematicConstrainedVertexFitterT< nTrk, nConstraint >::fit(), and PerigeeKinematicState::PerigeeKinematicState().

 {return vl;}

KinematicParameters const& KinematicState::kinematicParameters ( ) const

inline

Access methods to parameters and private data

Definition at line 51 of file KinematicState.h.

References param.

Referenced by KinematicConstrainedVertexFitter::fit(), KinematicConstrainedVertexFitterT< nTrk, nConstraint >::fit(), KinematicRefittedTrackState::kinematicParameters(), operator==(), and VirtualKinematicParticle::stateAtPoint().

{return param;}

KinematicParametersError const& KinematicState::kinematicParametersError ( ) const

inline

Definition at line 53 of file KinematicState.h.

References err.

Referenced by KinematicConstrainedVertexFitter::fit(), KinematicConstrainedVertexFitterT< nTrk, nConstraint >::fit(), freeTrajectoryState(), KinematicRefittedTrackState::kinematicParametersCovariance(), operator==(), PerigeeKinematicState::PerigeeKinematicState(), TrackKinematicStatePropagator::propagateToTheTransversePCACharged(), and TrackKinematicStatePropagator::propagateToTheTransversePCANeutral().

{return err;}

const MagneticField* KinematicState::magneticField ( ) const

inline

Definition at line 72 of file KinematicState.h.

References theField.

Referenced by KinematicPerigeeConversions::extendedPerigeeFromKinematicParameters(), TrackKinematicStatePropagator::propagateToTheTransversePCACharged(), TrackKinematicStatePropagator::propagateToTheTransversePCANeutral(), KinematicRefittedTrackState::trajectoryStateOnSurface(), TransientTrackKinematicParticle::TransientTrackKinematicParticle(), and VirtualKinematicParticle::VirtualKinematicParticle().

{return theField;}

ParticleMass KinematicState::mass ( ) const

inline

The mass of the particle

Definition at line 44 of file KinematicState.h.

References param, and KinematicParameters::vector().

Referenced by KinematicPerigeeConversions::extendedPerigeeFromKinematicParameters(), KinematicRefittedTrackState::kinematicMomentumVector(), TrackKinematicStatePropagator::propagateToTheTransversePCACharged(), and TrackKinematicStatePropagator::propagateToTheTransversePCANeutral().

{return param.vector()[6];}

bool KinematicState::operator==

(

const KinematicState &

other

)

const

Definition at line 11 of file KinematicState.cc.

References kinematicParameters(), kinematicParametersError(), KinematicParametersError::matrix(), and KinematicParameters::vector().

{
 bool res = false;
 if((kinematicParameters().vector() == other.kinematicParameters().vector())&&
    (kinematicParametersError().matrix() == other.kinematicParametersError().matrix())) res = true;
 return res;
}

TrackCharge KinematicState::particleCharge ( ) const

inline

Definition at line 59 of file KinematicState.h.

References ch.

Referenced by KinematicPerigeeConversions::extendedPerigeeFromKinematicParameters(), freeTrajectoryState(), TrackKinematicStatePropagator::propagateToTheTransversePCA(), TrackKinematicStatePropagator::propagateToTheTransversePCACharged(), and TrackKinematicStatePropagator::propagateToTheTransversePCANeutral().

{return ch;}

Member Data Documentation

TrackCharge KinematicState::ch

private

Definition at line 80 of file KinematicState.h.

Referenced by particleCharge().

KinematicParametersError KinematicState::err

private

Definition at line 79 of file KinematicState.h.

Referenced by kinematicParametersError().

KinematicParameters KinematicState::param

private

Definition at line 78 of file KinematicState.h.

Referenced by globalMomentum(), globalPosition(), kinematicParameters(), and mass().

const MagneticField* KinematicState::theField

private

Definition at line 77 of file KinematicState.h.

Referenced by freeTrajectoryState(), and magneticField().

bool KinematicState::vl

private

Definition at line 82 of file KinematicState.h.

Referenced by isValid(), and KinematicState().