/data/refman/pasoursint/CMSSW_5_3_4/src/RecoVertex/KinematicFitPrimitives/interface/KinematicState.h

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#ifndef KinematicState_H
#define KinematicState_H

#include "RecoVertex/KinematicFitPrimitives/interface/KinematicParameters.h"
#include "RecoVertex/KinematicFitPrimitives/interface/KinematicParametersError.h"
#include "RecoVertex/KinematicFitPrimitives/interface/ParticleMass.h"
#include "TrackingTools/TrajectoryState/interface/FreeTrajectoryState.h"
#include "MagneticField/Engine/interface/MagneticField.h"

class KinematicState{

public:

 KinematicState()
 {vl = false;}
 
 KinematicState(const KinematicParameters& parameters,
        const KinematicParametersError& error, const TrackCharge& charge,
        const MagneticField* field);
                                                       
 bool operator==(const KinematicState& other) const;

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

KinematicParameters const & kinematicParameters() const {return param;}

KinematicParametersError const & kinematicParametersError() const {return err;}

GlobalVector globalMomentum() const {return param.momentum();}

GlobalPoint  globalPosition() const {return param.position();}

TrackCharge particleCharge() const {return ch;}



 FreeTrajectoryState freeTrajectoryState() const;
 
 bool isValid() const
 {return vl;}

  const MagneticField* magneticField() const {return theField;}

 
private:

  const MagneticField* theField;
  KinematicParameters param;
  KinematicParametersError err;
  TrackCharge ch;
 
  bool vl;
};
#endif