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 17 of file KinematicState.h.

Constructor & Destructor Documentation

KinematicState::KinematicState ( )

inline

Default constructor for internal KinematicFitPrimitives library needs only

Definition at line 24 of file KinematicState.h.

References ALCARECOTkAlJpsiMuMu_cff::charge, relativeConstraints::error, and 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.

    : 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 37 of file KinematicState.h.

References operator==(), and trackingPlots::other.

      : 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 77 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 67 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 69 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 79 of file KinematicState.h.

References vl.

Referenced by ntupleDataFormat._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 86 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 81 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 84 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().

Referenced by KinematicState().

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

TrackCharge KinematicState::particleCharge ( ) const

inline

Definition at line 71 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 91 of file KinematicState.h.

Referenced by kinematicParametersError().

FreeTrajectoryState KinematicState::fts

private

Definition at line 89 of file KinematicState.h.

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

KinematicParameters KinematicState::param

private

Definition at line 90 of file KinematicState.h.

Referenced by kinematicParameters(), and mass().

bool KinematicState::vl

private

Definition at line 93 of file KinematicState.h.

Referenced by isValid(), and KinematicState().