ITrackToVertexIPEstimator.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef TRKVERTEXFITTERINTERFACES_ITRACKTOVERTEXIPESTIMATOR_H
#define TRKVERTEXFITTERINTERFACES_ITRACKTOVERTEXIPESTIMATOR_H
 
#include "GaudiKernel/IAlgTool.h"
#include "TrkParameters/TrackParameters.h"
//
#include "xAODTracking/TrackParticleFwd.h"
#include "xAODTracking/VertexFwd.h"
//
#include <memory>
 
#include "GaudiKernel/EventContext.h"
 
namespace Trk {
 
struct ImpactParametersAndSigma {
  double IPd0;
  double IPz0;
  double IPz0SinTheta;
  double sigmad0;
  double sigmaz0;
  double sigmaz0SinTheta;
  double PVsigmad0;
  double PVsigmaz0;
  double PVsigmaz0SinTheta;
};
 
 
class ITrackToVertexIPEstimator : virtual public IAlgTool {
 
 public:
  DeclareInterfaceID(ITrackToVertexIPEstimator, 1, 0);
 
  virtual ~ITrackToVertexIPEstimator()=default;

  virtual std::unique_ptr<ImpactParametersAndSigma> estimate(
      const EventContext &ctx,
      const xAOD::TrackParticle* track, const xAOD::Vertex* vtx,
      bool doRemoval) const = 0;
 
  virtual std::unique_ptr<ImpactParametersAndSigma> estimate(
      const EventContext &ctx,
      const Trk::TrackParameters* track, const xAOD::Vertex* vtx,
      bool doRemoval) const = 0;
 
  virtual std::unique_ptr<ImpactParametersAndSigma> estimate(
      const EventContext &ctx,
      const xAOD::TrackParticle* track, const xAOD::TrackParticle* newtrack,
      const xAOD::Vertex* vtx, bool doRemoval) const = 0;
 
  virtual std::unique_ptr<ImpactParametersAndSigma> estimate(
      const EventContext &ctx,
      const Trk::TrackParameters* track, const Trk::TrackParameters* newtrack,
      const xAOD::Vertex* vtx, bool doRemoval) const = 0;
 
  virtual xAOD::Vertex* getUnbiasedVertex(const xAOD::TrackParticle* track,
                                          const xAOD::Vertex* vtx) const = 0;
  virtual xAOD::Vertex* getUnbiasedVertex(const Trk::TrackParameters* track,
                                          const xAOD::Vertex* vtx) const = 0;
 
  virtual std::unique_ptr<ImpactParametersAndSigma> estimate(const EventContext &ctx,
      const xAOD::TrackParticle* track, const xAOD::Vertex* vtx) const = 0;
 
  virtual std::unique_ptr<ImpactParametersAndSigma> estimate(const EventContext &ctx,
      const Trk::TrackParameters* track, const xAOD::Vertex* vtx) const = 0;
 
  virtual double get3DLifetimeSignOfTrack(
      const EventContext &ctx,
      const Trk::TrackParameters& track, const Amg::Vector3D& jetMomentum,
      const xAOD::Vertex& primaryVertex) const = 0;
 
  virtual double get2DLifetimeSignOfTrack(
      const EventContext &ctx,
      const Trk::TrackParameters& track, const Amg::Vector3D& jetMomentum,
      const xAOD::Vertex& primaryVertex) const = 0;
 
  virtual double getZLifetimeSignOfTrack(
      const EventContext &ctx,
      const Trk::TrackParameters& track, const Amg::Vector3D& jetMomentum,
      const xAOD::Vertex& primaryVertex) const = 0;
 
 
};  // end of class definitions
 
}  // namespace Trk
#endif