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