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)
	KinematicState (const FreeTrajectoryState &state, const ParticleMass &mass, float m_sigma)
const MagneticField *	magneticField () const
GlobalVector	magneticFieldInInverseGeV (const GlobalPoint &x) const
GlobalVector	magneticFieldInInverseGeV () const
ParticleMass	mass () const
bool	operator== (const KinematicState &other) const
TrackCharge	particleCharge () const
GlobalTrajectoryParameters const &	trajectoryParameters () const

Private Attributes
KinematicParametersError	err
FreeTrajectoryState	fts
KinematicParameters	param
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 6 of file KinematicState.cc.

                                               : 
  fts(GlobalTrajectoryParameters(parameters.position(),parameters.momentum(),charge,field), 
      CartesianTrajectoryError(error.matrix().Sub<AlgebraicSymMatrix66>(0,0))),
  param(parameters),err(error),  vl(true){}

KinematicState::KinematicState ( const FreeTrajectoryState &  state, const ParticleMass &  mass, float  m_sigma  )

inline

Definition at line 40 of file KinematicState.h.

                                                  :
    fts(state), 
    param(state.position().x(),state.position().y(),state.position().z(),
      state.momentum().x(),state.momentum().y(),state.momentum().z(),
      mass),
    err(state.cartesianError(),m_sigma), vl(true){}

Member Function Documentation

FreeTrajectoryState KinematicState::freeTrajectoryState ( ) const

inline

KinematicState -> FreeTrajectoryState converter

Definition at line 80 of file KinematicState.h.

References fts.

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

{ return fts;}

GlobalVector KinematicState::globalMomentum ( ) const

inline

Definition at line 68 of file KinematicState.h.

References fts, and FreeTrajectoryState::momentum().

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

{return fts.momentum();}

GlobalPoint KinematicState::globalPosition ( ) const

inline

Definition at line 70 of file KinematicState.h.

References fts, and FreeTrajectoryState::position().

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

{return fts.position();}

bool KinematicState::isValid ( void  ) const

inline

Definition at line 82 of file KinematicState.h.

References vl.

Referenced by ntuple._Object::_checkIsValid(), KinematicConstrainedVertexFitter::fit(), KinematicConstrainedVertexFitterT< nTrk, nConstraint >::fit(), BPHKinematicFit::mass(), PerigeeKinematicState::PerigeeKinematicState(), core.AutoHandle.AutoHandle::ReallyLoad(), and KinematicStatePropagator::willPropagateToTheTransversePCA().

{return vl;}

KinematicParameters const& KinematicState::kinematicParameters ( ) const

inline

Access methods to parameters and private data

Definition at line 61 of file KinematicState.h.

References param.

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

{return param;}

KinematicParametersError const& KinematicState::kinematicParametersError ( ) const

inline

Definition at line 63 of file KinematicState.h.

References err.

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

{return err;}

const MagneticField* KinematicState::magneticField ( ) const

inline

Definition at line 87 of file KinematicState.h.

References GlobalTrajectoryParameters::magneticField(), and trajectoryParameters().

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

{return &trajectoryParameters().magneticField();}

GlobalVector KinematicState::magneticFieldInInverseGeV ( const GlobalPoint &  x ) const

inline

Definition at line 84 of file KinematicState.h.

References GlobalTrajectoryParameters::magneticFieldInInverseGeV(), and trajectoryParameters().

Referenced by KinematicPerigeeConversions::extendedPerigeeFromKinematicParameters().

{ return trajectoryParameters().magneticFieldInInverseGeV(x);}

GlobalVector KinematicState::magneticFieldInInverseGeV ( ) const

inline

Definition at line 85 of file KinematicState.h.

References GlobalTrajectoryParameters::magneticFieldInInverseGeV(), and trajectoryParameters().

{ return trajectoryParameters().magneticFieldInInverseGeV();}

ParticleMass KinematicState::mass ( ) const

inline

The mass of the particle

Definition at line 54 of file KinematicState.h.

References param, and KinematicParameters::vector().

Referenced by Particle.Particle::__str__(), DiObject.DiMuon::__str__(), KinematicPerigeeConversions::extendedPerigeeFromKinematicParameters(), BPHKinematicFit::fitMomentum(), KinematicRefittedTrackState::kinematicMomentumVector(), BPHKinematicFit::mass(), TrackKinematicStatePropagator::propagateToTheTransversePCACharged(), TrackKinematicStatePropagator::propagateToTheTransversePCANeutral(), and BPHWriteSpecificDecay::write().

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

bool KinematicState::operator==

(

const KinematicState &

other

)

const

Definition at line 14 of file KinematicState.cc.

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

{
  return (kinematicParameters().vector() == other.kinematicParameters().vector()) &&
    (kinematicParametersError().matrix() == other.kinematicParametersError().matrix());
}

TrackCharge KinematicState::particleCharge ( ) const

inline

Definition at line 72 of file KinematicState.h.

References FreeTrajectoryState::charge(), and fts.

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

{return fts.charge();}

GlobalTrajectoryParameters const& KinematicState::trajectoryParameters ( ) const

inline

Definition at line 65 of file KinematicState.h.

References fts, and FreeTrajectoryState::parameters().

Referenced by magneticField(), magneticFieldInInverseGeV(), TrackKinematicStatePropagator::propagateToTheTransversePCACharged(), and TrackKinematicStatePropagator::propagateToTheTransversePCANeutral().

{ return fts.parameters();}

Member Data Documentation

KinematicParametersError KinematicState::err

private

Definition at line 93 of file KinematicState.h.

Referenced by kinematicParametersError().

FreeTrajectoryState KinematicState::fts

private

Definition at line 91 of file KinematicState.h.

Referenced by freeTrajectoryState(), globalMomentum(), globalPosition(), particleCharge(), and trajectoryParameters().

KinematicParameters KinematicState::param

private

Definition at line 92 of file KinematicState.h.

Referenced by kinematicParameters(), and mass().

bool KinematicState::vl

private

Definition at line 95 of file KinematicState.h.

Referenced by isValid(), and KinematicState().