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a9e2aefa | 1 | #ifndef ALIMUONTRACKPARAM_H |
2 | #define ALIMUONTRACKPARAM_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /*$Id$*/ | |
30178c30 | 7 | // Revision of includes 07/05/2004 |
a9e2aefa | 8 | |
3831f268 | 9 | /////////////////////////////////////////////////// |
10 | // Track parameters in ALICE dimuon spectrometer | |
11 | /////////////////////////////////////////////////// | |
a9e2aefa | 12 | |
3831f268 | 13 | #include <TObject.h> |
a9e2aefa | 14 | |
30178c30 | 15 | class AliMUONTrackParam : public TObject |
16 | { | |
a9e2aefa | 17 | public: |
30178c30 | 18 | AliMUONTrackParam(); // Constructor |
d837040f | 19 | virtual ~AliMUONTrackParam(){} // Destructor |
61adb9bd | 20 | |
d694b6f6 | 21 | AliMUONTrackParam(const AliMUONTrackParam& rhs);// copy constructor (should be added per default !) |
22 | AliMUONTrackParam& operator=(const AliMUONTrackParam& rhs);// (should be added per default !) | |
a9e2aefa | 23 | // Get and Set methods for data |
3831f268 | 24 | Double_t GetInverseBendingMomentum(void) const {return fInverseBendingMomentum;} |
25 | void SetInverseBendingMomentum(Double_t InverseBendingMomentum) {fInverseBendingMomentum = InverseBendingMomentum;} | |
26 | Double_t GetBendingSlope(void) const {return fBendingSlope;} | |
27 | void SetBendingSlope(Double_t BendingSlope) {fBendingSlope = BendingSlope;} | |
28 | Double_t GetNonBendingSlope(void) const {return fNonBendingSlope;} | |
29 | void SetNonBendingSlope(Double_t NonBendingSlope) {fNonBendingSlope = NonBendingSlope;} | |
30 | Double_t GetZ(void) const {return fZ;} | |
31 | void SetZ(Double_t Z) {fZ = Z;} | |
32 | Double_t GetBendingCoor(void) const {return fBendingCoor;} | |
33 | void SetBendingCoor(Double_t BendingCoor) {fBendingCoor = BendingCoor;} | |
34 | Double_t GetNonBendingCoor(void) const {return fNonBendingCoor;} | |
35 | void SetNonBendingCoor(Double_t NonBendingCoor) {fNonBendingCoor = NonBendingCoor;} | |
b8dc484b | 36 | Double_t Px(); // return px |
37 | Double_t Py(); // return py | |
38 | Double_t Pz(); // return pz | |
39 | Double_t P(); // return total momentum | |
a9e2aefa | 40 | |
41 | void ExtrapToZ(Double_t Z); | |
42 | void ExtrapToStation(Int_t Station, AliMUONTrackParam *TrackParam); | |
889a0215 | 43 | void ExtrapToVertex(Double_t xVtx, Double_t yVtx, Double_t zVtx); // extrapolation to vertex through the absorber (with true vertex) |
44 | void BransonCorrection(Double_t xVtx, Double_t yVtx, Double_t zVtx); // makes Branson correction with true vertex | |
45 | // returns total momentum after energy loss correction in the absorber | |
61adb9bd | 46 | Double_t TotalMomentumEnergyLoss(Double_t thetaLimit, Double_t pTotal, Double_t theta); |
b45fd22b | 47 | void FieldCorrection(Double_t Z); // makes simple magnetic field correction through the absorber |
a9e2aefa | 48 | |
f161a467 | 49 | void ExtrapOneStepHelix(Double_t charge, Double_t step, |
50 | Double_t *vect, Double_t *vout) const; | |
51 | void ExtrapOneStepHelix3(Double_t field, Double_t step, | |
52 | Double_t *vect, Double_t *vout) const; | |
53 | ||
54 | void ExtrapOneStepRungekutta(Double_t charge, Double_t step, | |
55 | Double_t* vect, Double_t* vout) const; | |
a9e2aefa | 56 | protected: |
57 | private: | |
956019b6 | 58 | Double_t fInverseBendingMomentum; // Inverse bending momentum (GeV/c ** -1) times the charge (assumed forward motion) |
a9e2aefa | 59 | Double_t fBendingSlope; // Bending slope (cm ** -1) |
60 | Double_t fNonBendingSlope; // Non bending slope (cm ** -1) | |
61 | Double_t fZ; // Z coordinate (cm) | |
62 | Double_t fBendingCoor; // bending coordinate (cm) | |
63 | Double_t fNonBendingCoor; // non bending coordinate (cm) | |
64 | ||
65 | void SetGeant3Parameters(Double_t *VGeant3, Double_t ForwardBackward); | |
66 | void GetFromGeant3Parameters(Double_t *VGeant3, Double_t Charge); | |
4d03a78e | 67 | |
f161a467 | 68 | void GetField(Double_t *Position, Double_t *Field) const; |
a9e2aefa | 69 | |
044d512b | 70 | ClassDef(AliMUONTrackParam, 1) // Track parameters in ALICE dimuon spectrometer |
a9e2aefa | 71 | }; |
72 | ||
73 | #endif |