TransientTrackKinematicParticle.h

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#ifndef TransientTrackKinematicParticle_H
#define TransientTrackKinematicParticle_H

#include "TrackingTools/TransientTrack/interface/TransientTrack.h"
#include "RecoVertex/KinematicFitPrimitives/interface/RefCountedKinematicParticle.h"
#include "RecoVertex/KinematicFitPrimitives/interface/KinematicStatePropagator.h"
#include "RecoVertex/KinematicFitPrimitives/interface/ParticleKinematicLinearizedTrackStateFactory.h"

class TransientTrackKinematicParticle : public KinematicParticle {
public:
  TransientTrackKinematicParticle(const KinematicState& kineState,
                                  float& chiSquared,
                                  float& degreesOfFr,
                                  KinematicConstraint* lastConstraint,
                                  ReferenceCountingPointer<KinematicParticle> previousParticle,
                                  KinematicStatePropagator* pr,
                                  const reco::TransientTrack* initialTrack = nullptr);

  ~TransientTrackKinematicParticle() 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;

  const reco::TransientTrack* initialTransientTrack() const;

  ReferenceCountingPointer<KinematicParticle> refittedParticle(const KinematicState& state,
                                                               float chi2,
                                                               float ndf,
                                                               KinematicConstraint* cons = nullptr) const override;

  RefCountedLinearizedTrackState particleLinearizedTrackState(const GlobalPoint& point) const override;

private:
  //initial TransientTrack (if any)
  const reco::TransientTrack* inTrack;

  //propagator for kinematic states
  KinematicStatePropagator* propagator;

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