VirtualKinematicParticle.h

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#ifndef VirtualKinematicParticle_H
#define VirtualKinematicParticle_H

#include "RecoVertex/KinematicFitPrimitives/interface/KinematicParticle.h"
#include "RecoVertex/KinematicFitPrimitives/interface/KinematicStatePropagator.h"
#include "RecoVertex/KinematicFitPrimitives/interface/ParticleKinematicLinearizedTrackStateFactory.h"

class VirtualKinematicParticle : public KinematicParticle {
public:
  VirtualKinematicParticle(const KinematicState& kineState,
                           float& chiSquared,
                           float& degreesOfFr,
                           KinematicConstraint* lastConstraint,
                           ReferenceCountingPointer<KinematicParticle> previousParticle,
                           KinematicStatePropagator* pr);

  ~VirtualKinematicParticle() override;

  bool operator==(const KinematicParticle& other) const override;

  bool operator==(const ReferenceCountingPointer<KinematicParticle>& other) const override;

  bool operator!=(const KinematicParticle& other) const override;

  KinematicState stateAtPoint(const GlobalPoint& point) const override;

  RefCountedKinematicParticle refittedParticle(const KinematicState& state,
                                               float chi2,
                                               float ndf,
                                               KinematicConstraint* cons = nullptr) const override;

  RefCountedLinearizedTrackState particleLinearizedTrackState(const GlobalPoint& point) const override;

private:
  //propagator for kinematic states
  KinematicStatePropagator* propagator;

  //LinearizedTrackStateFactory  specific for this
  //type of particle
  ParticleKinematicLinearizedTrackStateFactory linFactory;
};
#endif