Default chamber resolution constants moved from AliMUONVCluster into
[u/mrichter/AliRoot.git] / MUON / AliMUONConstants.h
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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
15class 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.
29fc2c86 54 static Int_t ChamberNumber(Float_t z);
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
80 static const Double_t AbsZBeg() {return fgkAbsZBeg;}
81 /// Return z-position of absorber end
82 static const 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;}
a04a1860 87 /// Return default chamber resolution in non bending direction
88 static const Double_t DefaultNonBendingReso() {return fgkDefaultNonBendingReso;}
89 /// Return default chamber resolution**2 in non bending direction
90 static const Double_t DefaultNonBendingReso2() {return fgkDefaultNonBendingReso*fgkDefaultNonBendingReso;}
91 /// Return default chamber resolution in bending direction
92 static const Double_t DefaultBendingReso() {return fgkDefaultBendingReso;}
93 /// Return default chamber resolution**2 in bending direction
94 static const Double_t DefaultBendingReso2() {return fgkDefaultBendingReso*fgkDefaultBendingReso;}
95
30178c30 96 protected:
5398f946 97 /// Default constructor
30178c30 98 AliMUONConstants() : TObject() {}
5398f946 99 /// Destructor
f665c1ea 100 virtual ~AliMUONConstants(){}
30178c30 101
f665c1ea 102 private:
de2cd600 103 static Int_t fgNTrackingSt; ///< Number of Tracking Stations
d59274fa 104 static Int_t fgNTriggerCircuit; ///< Number of Trigger Circuits
105 static Int_t fgNDetElem; ///< Number of Detection Elements.
573dc4ee 106 static Int_t fgNGeomModules; ///< Number of Geometry modules
d59274fa 107
208f139e 108 static Float_t fgDefaultChamberZ[14]; //!< Z-positions of chambers
109 static Float_t fgDefaultRatioTriggerChamber[4]; ///< Ratio between trigger chambers
110 static Float_t fgSt345inclination; //!< Inclination with respect the vertical axis of stations 345
111 static Float_t fgDmin[7]; //!< Inner diameter
112 static Float_t fgDmax[7]; //!< Outer diameter
d59274fa 113
114 static Float_t fgDzCh; ///< Half-distance between two half-chambers
115 static Float_t fgDzSlat; ///< Half-distance between two slat on the same chamber
116 static Float_t fgSqrtKx3; ///< SqrtKx3 for St2 & Slat
117 static Float_t fgSqrtKy3; ///< SqrtKy3 for St2 & Slat
118 static Float_t fgSqrtKx3St1; ///< SqrtKx3 for Station 1
119 static Float_t fgSqrtKy3St1; ///< SqrtKy3 for Station 1
7e4a628d 120
d59274fa 121 static Float_t fgChargeCorrel; ///< Charge correlation for St2 & Slats
122 static Float_t fgChargeCorrelSt1; ///< Charge correlation for Station 1
7e4a628d 123
d59274fa 124 static Float_t fgPitch; ///< Wire pitch for St2 & Slats
125 static Float_t fgPitchSt1; ///< Wire pitch for Station 1
e516b01d 126
208f139e 127 static Double_t fgChamberThicknessInX0; ///< default chamber thickness in X0 for reconstruction
de2cd600 128
208f139e 129 static Double_t fgCoilZ; ///< Coil z-position
130 static Double_t fgCoilL; ///< Coil lenght
131 static Double_t fgYokeZ; ///< Yoke z-position
132 static Double_t fgYokeL; ///< Yoke lenght
133
ff71f4a2 134 static const Double_t fgkAbsZBeg; ///< z-position of the begining of the absorber
135 static const Double_t fgkAbsZEnd; ///< z-position of the end of the absorber
136
208f139e 137 static Int_t fgMaxZoom; ///< Maximum Zoom for event display
138 static Float_t fgkTriggerTofLimit; ///< Particle above this threshold are discarded in trigger algorithm
d59274fa 139
a04a1860 140 static const Double_t fgkDefaultNonBendingReso; ///< default chamber resolution in the non-bending direction
141 static const Double_t fgkDefaultBendingReso; ///< default chamber resolution in the bending direction
142
d59274fa 143 ClassDef(AliMUONConstants, 0) // MUON global constants
f665c1ea 144};
145
146#endif
147