/*$Id$*/
// Revision of includes 07/05/2004
-///////////////////////////////////////////////////
-// Track parameters in ALICE dimuon spectrometer
-///////////////////////////////////////////////////
+/// \ingroup rec
+/// \class AliMUONTrackParam
+/// \brief Track parameters in ALICE dimuon spectrometer
+///
+////////////////////////////////////////////////////
+/// Track parameters in ALICE dimuon spectrometer
+////////////////////////////////////////////////////
#include <TObject.h>
+#include <TMatrixDfwd.h>
+#include "AliMUONHitForRec.h"
+
+class AliESDMuonTrack;
class AliMUONTrackParam : public TObject
{
public:
AliMUONTrackParam(); // Constructor
- virtual ~AliMUONTrackParam(){} // Destructor
+ virtual ~AliMUONTrackParam(); // Destructor
- AliMUONTrackParam(const AliMUONTrackParam& rhs);// copy constructor (should be added per default !)
- AliMUONTrackParam& operator=(const AliMUONTrackParam& rhs);// (should be added per default !)
+ AliMUONTrackParam(const AliMUONTrackParam& theMUONTrackParam);
+ AliMUONTrackParam& operator=(const AliMUONTrackParam& theMUONTrackParam);
+
+ void GetParamFrom(const AliESDMuonTrack& esdMuonTrack);
+ void SetParamFor(AliESDMuonTrack& esdMuonTrack);
+
// Get and Set methods for data
+ /// return inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
Double_t GetInverseBendingMomentum(void) const {return fInverseBendingMomentum;}
- void SetInverseBendingMomentum(Double_t InverseBendingMomentum) {fInverseBendingMomentum = InverseBendingMomentum;}
+ /// set inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
+ void SetInverseBendingMomentum(Double_t inverseBendingMomentum) {fInverseBendingMomentum = inverseBendingMomentum;}
+ /// return bending slope (cm ** -1)
Double_t GetBendingSlope(void) const {return fBendingSlope;}
- void SetBendingSlope(Double_t BendingSlope) {fBendingSlope = BendingSlope;}
+ /// set bending slope (cm ** -1)
+ void SetBendingSlope(Double_t bendingSlope) {fBendingSlope = bendingSlope;}
+ /// return non bending slope (cm ** -1)
Double_t GetNonBendingSlope(void) const {return fNonBendingSlope;}
- void SetNonBendingSlope(Double_t NonBendingSlope) {fNonBendingSlope = NonBendingSlope;}
+ /// set non bending slope (cm ** -1)
+ void SetNonBendingSlope(Double_t nonBendingSlope) {fNonBendingSlope = nonBendingSlope;}
+ /// return Z coordinate (cm)
Double_t GetZ(void) const {return fZ;}
- void SetZ(Double_t Z) {fZ = Z;}
+ /// set Z coordinate (cm)
+ void SetZ(Double_t z) {fZ = z;}
+ /// return bending coordinate (cm)
Double_t GetBendingCoor(void) const {return fBendingCoor;}
- void SetBendingCoor(Double_t BendingCoor) {fBendingCoor = BendingCoor;}
+ /// set bending coordinate (cm)
+ void SetBendingCoor(Double_t bendingCoor) {fBendingCoor = bendingCoor;}
+ /// return non bending coordinate (cm)
Double_t GetNonBendingCoor(void) const {return fNonBendingCoor;}
- void SetNonBendingCoor(Double_t NonBendingCoor) {fNonBendingCoor = NonBendingCoor;}
- Double_t Px(); // return px
- Double_t Py(); // return py
- Double_t Pz(); // return pz
- Double_t P(); // return total momentum
-
- void ExtrapToZ(Double_t Z);
- void ExtrapToStation(Int_t Station, AliMUONTrackParam *TrackParam);
- void ExtrapToVertex(Double_t xVtx, Double_t yVtx, Double_t zVtx); // extrapolation to vertex through the absorber (with true vertex)
- void BransonCorrection(Double_t xVtx, Double_t yVtx, Double_t zVtx); // makes Branson correction with true vertex
- // returns total momentum after energy loss correction in the absorber
- Double_t TotalMomentumEnergyLoss(Double_t thetaLimit, Double_t pTotal, Double_t theta);
- void FieldCorrection(Double_t Z); // makes simple magnetic field correction through the absorber
-
- void ExtrapOneStepHelix(Double_t charge, Double_t step,
- Double_t *vect, Double_t *vout) const;
- void ExtrapOneStepHelix3(Double_t field, Double_t step,
- Double_t *vect, Double_t *vout) const;
+ /// set non bending coordinate (cm)
+ void SetNonBendingCoor(Double_t nonBendingCoor) {fNonBendingCoor = nonBendingCoor;}
+
+ void SetTrackParam(AliMUONTrackParam& theMUONTrackParam);
+
+ AliMUONHitForRec* GetHitForRecPtr(void) const;
+ /// set pointeur to associated HitForRec
+ void SetHitForRecPtr(AliMUONHitForRec* hitForRec) {fHitForRecPtr = hitForRec;}
+
+ Double_t Px() const; // return px
+ Double_t Py() const; // return py
+ Double_t Pz() const; // return pz
+ Double_t P() const; // return total momentum
- void ExtrapOneStepRungekutta(Double_t charge, Double_t step,
- Double_t* vect, Double_t* vout) const;
- protected:
- private:
- Double_t fInverseBendingMomentum; // Inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
- Double_t fBendingSlope; // Bending slope (cm ** -1)
- Double_t fNonBendingSlope; // Non bending slope (cm ** -1)
- Double_t fZ; // Z coordinate (cm)
- Double_t fBendingCoor; // bending coordinate (cm)
- Double_t fNonBendingCoor; // non bending coordinate (cm)
+ /// return kTRUE if the covariance matrix exist, kFALSE if not
+ Bool_t CovariancesExist(void) {return (fCovariances) ? kTRUE : kFALSE;}
+ TMatrixD* GetCovariances(void);
+ void SetCovariances(TMatrixD* covariances);
+ void SetCovariances(Double_t matrix[5][5]);
+ void SetVariances(Double_t matrix[5][5]);
+ void DeleteCovariances(void);
+
+ void EvalCovariances(AliMUONHitForRec* hit2);
- void SetGeant3Parameters(Double_t *VGeant3, Double_t ForwardBackward);
- void GetFromGeant3Parameters(Double_t *VGeant3, Double_t Charge);
+ /// necessary for sorting TClonesArray of TrackHit's
+ Bool_t IsSortable () const {return kTRUE;}
+ Int_t Compare(const TObject* trackParam) const;
- void GetField(Double_t *Position, Double_t *Field) const;
+ virtual void Print(Option_t* opt="") const;
+
- ClassDef(AliMUONTrackParam, 1) // Track parameters in ALICE dimuon spectrometer
- };
+ private:
+ // Parameters
+ Double_t fNonBendingCoor; ///< Non bending coordinate (cm)
+ Double_t fNonBendingSlope; ///< Non bending slope (cm ** -1)
+ Double_t fBendingCoor; ///< Bending coordinate (cm)
+ Double_t fBendingSlope; ///< Bending slope (cm ** -1)
+ Double_t fInverseBendingMomentum; ///< Inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion)
+ Double_t fZ; ///< Z coordinate (cm)
+
+ /// Covariance matrix of track parameters, ordered as follow:
+ /// <X,X> <X,SlopeX> <X,Y> <X,SlopeY> <X,InvP_yz>
+ /// <X,SlopeX> <SlopeX,SlopeX> <Y,SlopeX> <SlopeX,SlopeY> <SlopeX,InvP_yz>
+ /// <X,Y> <Y,SlopeX> <Y,Y> <Y,SlopeY> <Y,InvP_yz>
+ /// <X,SlopeY> <SlopeX,SlopeY> <Y,SlopeY> <SlopeY,SlopeY> <SlopeY,InvP_yz>
+ /// <X,InvP_yz> <SlopeX,InvP_yz> <Y,InvP_yz> <SlopeY,InvP_yz> <InvP_yz,InvP_yz>
+ TMatrixD *fCovariances; //!
+
+ AliMUONHitForRec *fHitForRecPtr; //!< Pointer to associated HitForRec if any
+
+ ClassDef(AliMUONTrackParam, 2) // Track parameters in ALICE dimuon spectrometer
+};
#endif