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f665c1ea | 1 | #ifndef ALIMUONCONSTANTS_H |
2 | #define ALIMUONCONSTANTS_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
24c9eaa0 | 6 | /* $Id$*/ |
30178c30 | 7 | // Revision of includes 07/05/2004 |
692de412 | 8 | // |
9 | /// \ingroup base | |
10 | /// \class AliMUONConstants | |
11 | /// \brief MUON global constants | |
f665c1ea | 12 | |
13 | #include <TObject.h> | |
f665c1ea | 14 | |
15 | class AliMUONConstants : public TObject { | |
16 | public: | |
d59274fa | 17 | /// Return number of chambers |
6061eac6 | 18 | static Int_t NCh(); |
d59274fa | 19 | /// Return number of tracking chambers |
6061eac6 | 20 | static Int_t NTrackingCh(); |
de2cd600 | 21 | /// Return number of tracking stations |
22 | static Int_t NTrackingSt() {return fgNTrackingSt;} | |
d59274fa | 23 | /// Return number of trigger chambers |
6061eac6 | 24 | static Int_t NTriggerCh() {return NCh()-NTrackingCh();} |
d59274fa | 25 | /// Return number of trigger circuits |
f665c1ea | 26 | static Int_t NTriggerCircuit() {return fgNTriggerCircuit;} |
d59274fa | 27 | /// Return number of detection element |
edb96c6a | 28 | static Int_t NDetElem() {return fgNDetElem;} |
573dc4ee | 29 | /// Return number of geometry modules |
30 | static Int_t NGeomModules() {return fgNGeomModules;} | |
d59274fa | 31 | /// Return position of chamber i |
f665c1ea | 32 | static Float_t DefaultChamberZ(Int_t i) {return fgDefaultChamberZ[i];} |
d59274fa | 33 | /// Return ratio between trigger chambers |
43adb63d | 34 | static Float_t DefaultRatioTriggerChamber(Int_t i) {return fgDefaultRatioTriggerChamber[i];} |
d59274fa | 35 | /// Return Inclination with respect the vertical axis of stations 345 |
36 | static Float_t St345Inclination() {return fgSt345inclination;} | |
37 | /// Return pointer to array of positions | |
38 | static Float_t* DefaultChamberZ() {return fgDefaultChamberZ;} | |
39 | /// Return chamber i inner diameter | |
40 | static Float_t Dmin(Int_t i) {return fgDmin[i];} | |
41 | /// Return chamber i inner radius | |
42 | static Float_t Rmin(Int_t i) {return Dmin(i)/2.0;} | |
43 | /// Return chamber i outer diameter | |
44 | static Float_t Dmax(Int_t i) {return fgDmax[i];} | |
45 | /// Return chamber i outer radius | |
46 | static Float_t Rmax(Int_t i) {return Dmax(i)/2.0;} | |
47 | /// Return maximum zoom for event display | |
48 | static Int_t MaxZoom() {return fgMaxZoom;} | |
49 | /// Return half-distance between two half-chambers | |
50 | static Float_t DzCh() {return fgDzCh;} | |
51 | /// Return half-distance between two slats | |
52 | static Float_t DzSlat() {return fgDzSlat;} | |
53 | /// Return chamber number according z position of hit. | |
3787f517 | 54 | static Int_t ChamberNumber(Float_t z, bool warn = false); |
d59274fa | 55 | /// Return SqrtKx3 for Slat |
56 | static Float_t SqrtKx3() {return fgSqrtKx3;} | |
57 | /// Return SqrtKy3 for Slat | |
58 | static Float_t SqrtKy3() {return fgSqrtKy3;} | |
59 | /// Return SqrtKx3 for Station 1 & 2 | |
60 | static Float_t SqrtKx3St1() {return fgSqrtKx3St1;} | |
61 | /// Return SqrtKy3 for Station 1 & 2 | |
62 | static Float_t SqrtKy3St1() {return fgSqrtKy3St1;} | |
63 | /// Return charge correlation (needed for response and for cluster finder !?) | |
64 | static Float_t ChargeCorrel() {return fgChargeCorrel;} | |
65 | /// Return charge correlation for Station 1 & 2 (needed for response and for cluster finder !?) | |
66 | static Float_t ChargeCorrelSt1() {return fgChargeCorrelSt1;} | |
67 | /// Return wire pitch | |
1c334adf | 68 | static Float_t Pitch() {return fgPitch;} |
d59274fa | 69 | /// Return wire pitch for Station 1 & 2 |
1c334adf | 70 | static Float_t PitchSt1() {return fgPitchSt1;} |
208f139e | 71 | /// Return coil z-position |
72 | static Double_t CoilZ() {return fgCoilZ;} | |
73 | /// Return coil lenght | |
74 | static Double_t CoilL() {return fgCoilL;} | |
75 | /// Return yoke z-position | |
76 | static Double_t YokeZ() {return fgYokeZ;} | |
77 | /// Return yoke lenght | |
78 | static Double_t YokeL() {return fgYokeL;} | |
ff71f4a2 | 79 | /// Return z-position of absorber begining |
94bf739c | 80 | static Double_t AbsZBeg() {return fgkAbsZBeg;} |
ff71f4a2 | 81 | /// Return z-position of absorber end |
94bf739c | 82 | static Double_t AbsZEnd() {return fgkAbsZEnd;} |
de2cd600 | 83 | /// Return chamber thickness in X0 |
208f139e | 84 | static Double_t ChamberThicknessInX0() {return fgChamberThicknessInX0;} |
b717b957 | 85 | /// Return Trigger ToF Limit (75 ns) |
86 | static Float_t TriggerTofLimit() {return fgkTriggerTofLimit;} | |
fda59e58 | 87 | /// Return default trigger chamber resolution in non bending direction |
94bf739c | 88 | static Double_t TriggerNonBendingReso() {return fgkTriggerNonBendingReso;} |
fda59e58 | 89 | /// Return default trigger chamber resolution in bending direction |
94bf739c | 90 | static Double_t TriggerBendingReso() {return fgkTriggerBendingReso;} |
fda59e58 | 91 | /// Return z-position of muon filter begining |
94bf739c | 92 | static Double_t MuonFilterZBeg() {return fgkMuonFilterZBeg;} |
fda59e58 | 93 | /// Return z-position of muon filter end |
94bf739c | 94 | static Double_t MuonFilterZEnd() {return fgkMuonFilterZEnd;} |
fda59e58 | 95 | /// Return radiation length (in cm) of muon filter |
94bf739c | 96 | static Double_t MuonFilterX0() {return fgkMuonFilterX0;} |
fda59e58 | 97 | |
9bdbee64 | 98 | /// Return the most probable bending momentum (GeV/c) (used when B = 0) |
94bf739c | 99 | static Double_t GetMostProbBendingMomentum() { return fgkMostProbBendingMomentum; } |
9bdbee64 | 100 | |
30178c30 | 101 | protected: |
5398f946 | 102 | /// Default constructor |
30178c30 | 103 | AliMUONConstants() : TObject() {} |
5398f946 | 104 | /// Destructor |
f665c1ea | 105 | virtual ~AliMUONConstants(){} |
30178c30 | 106 | |
f665c1ea | 107 | private: |
de2cd600 | 108 | static Int_t fgNTrackingSt; ///< Number of Tracking Stations |
d59274fa | 109 | static Int_t fgNTriggerCircuit; ///< Number of Trigger Circuits |
110 | static Int_t fgNDetElem; ///< Number of Detection Elements. | |
573dc4ee | 111 | static Int_t fgNGeomModules; ///< Number of Geometry modules |
d59274fa | 112 | |
208f139e | 113 | static Float_t fgDefaultChamberZ[14]; //!< Z-positions of chambers |
3787f517 | 114 | static Float_t fgDefaultChamberMinZ[14]; //!< Minimum z-positions of chambers |
115 | static Float_t fgDefaultChamberMaxZ[14]; //!< Maximum z-positions of chambers | |
208f139e | 116 | static Float_t fgDefaultRatioTriggerChamber[4]; ///< Ratio between trigger chambers |
117 | static Float_t fgSt345inclination; //!< Inclination with respect the vertical axis of stations 345 | |
118 | static Float_t fgDmin[7]; //!< Inner diameter | |
119 | static Float_t fgDmax[7]; //!< Outer diameter | |
d59274fa | 120 | |
121 | static Float_t fgDzCh; ///< Half-distance between two half-chambers | |
122 | static Float_t fgDzSlat; ///< Half-distance between two slat on the same chamber | |
123 | static Float_t fgSqrtKx3; ///< SqrtKx3 for St2 & Slat | |
124 | static Float_t fgSqrtKy3; ///< SqrtKy3 for St2 & Slat | |
125 | static Float_t fgSqrtKx3St1; ///< SqrtKx3 for Station 1 | |
126 | static Float_t fgSqrtKy3St1; ///< SqrtKy3 for Station 1 | |
7e4a628d | 127 | |
d59274fa | 128 | static Float_t fgChargeCorrel; ///< Charge correlation for St2 & Slats |
129 | static Float_t fgChargeCorrelSt1; ///< Charge correlation for Station 1 | |
7e4a628d | 130 | |
d59274fa | 131 | static Float_t fgPitch; ///< Wire pitch for St2 & Slats |
132 | static Float_t fgPitchSt1; ///< Wire pitch for Station 1 | |
e516b01d | 133 | |
208f139e | 134 | static Double_t fgChamberThicknessInX0; ///< default chamber thickness in X0 for reconstruction |
de2cd600 | 135 | |
208f139e | 136 | static Double_t fgCoilZ; ///< Coil z-position |
137 | static Double_t fgCoilL; ///< Coil lenght | |
138 | static Double_t fgYokeZ; ///< Yoke z-position | |
139 | static Double_t fgYokeL; ///< Yoke lenght | |
140 | ||
ff71f4a2 | 141 | static const Double_t fgkAbsZBeg; ///< z-position of the begining of the absorber |
142 | static const Double_t fgkAbsZEnd; ///< z-position of the end of the absorber | |
143 | ||
208f139e | 144 | static Int_t fgMaxZoom; ///< Maximum Zoom for event display |
145 | static Float_t fgkTriggerTofLimit; ///< Particle above this threshold are discarded in trigger algorithm | |
d59274fa | 146 | |
fda59e58 | 147 | static const Double_t fgkTriggerNonBendingReso; ///< default trigger chamber resolution in the non-bending direction |
148 | static const Double_t fgkTriggerBendingReso; ///< default trigger chamber resolution in the bending direction | |
149 | ||
150 | static const Double_t fgkMuonFilterZBeg; ///< z-position of the begining of the muon filter | |
151 | static const Double_t fgkMuonFilterZEnd; ///< z-position of the end of the muon filter | |
152 | static const Double_t fgkMuonFilterX0; ///< x0 of the muon filter | |
a04a1860 | 153 | |
9bdbee64 | 154 | static const Double_t fgkMostProbBendingMomentum; ///< most probable value (GeV/c) of muon momentum in bending plane (used when B = 0) needed to get some "reasonable" corrections for MCS and E loss even if B = 0 |
155 | ||
156 | ||
d59274fa | 157 | ClassDef(AliMUONConstants, 0) // MUON global constants |
f665c1ea | 158 | }; |
159 | ||
160 | #endif | |
161 |