de/d6d/KinematicPerigeeConversions_8h_source.html

#ifndef KinematicPerigeeConversions_H

#define KinematicPerigeeConversions_H


#include "RecoVertex/KinematicFitPrimitives/interface/KinematicParameters.h"

#include "RecoVertex/KinematicFitPrimitives/interface/KinematicState.h"

#include "RecoVertex/KinematicFitPrimitives/interface/ExtendedPerigeeTrajectoryParameters.h"

#include "MagneticField/Engine/interface/MagneticField.h"

#include "RecoVertex/KinematicFitPrimitives/interface/Matrices.h"


class KinematicPerigeeConversions {

public:

  KinematicPerigeeConversions() {}


  ExtendedPerigeeTrajectoryParameters extendedPerigeeFromKinematicParameters(const KinematicState& state,

                                                                             const GlobalPoint& point) const;


  KinematicParameters kinematicParametersFromExPerigee(const ExtendedPerigeeTrajectoryParameters& pr,

                                                       const GlobalPoint& point,

                                                       const MagneticField* field) const;


  KinematicState kinematicState(const AlgebraicVector4& momentum,

                                const GlobalPoint& referencePoint,

                                const TrackCharge& charge,

                                const AlgebraicSymMatrix77& theCovarianceMatrix,

                                const MagneticField* field) const;


  AlgebraicVector4 momentumFromPerigee(const AlgebraicVector4& momentum,

                                       const GlobalPoint& referencePoint,

                                       const TrackCharge& ch,

                                       const MagneticField* field) const;


private:

  AlgebraicMatrix77 jacobianParameters2Kinematic(const AlgebraicVector4& momentum,

                                                 const GlobalPoint& referencePoint,

                                                 const TrackCharge& charge,

                                                 const MagneticField* field) const;

};

#endif