AliRoot Core  a565103 (a565103)
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
AliMFTConstants.h
Go to the documentation of this file.
1 #ifndef AliMFTConstants_H
2 #define AliMFTConstants_H
3 
4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5  * See cxx source for full Copyright notice */
6 
7 // $Id$
8 
16 
17 #include <TObject.h>
18 
19 class AliMFTConstants : public TObject {
20 
21 public:
22  // Geometry
23  static const Int_t kNDisks = 5;
24  static const Double_t kSensorLength;
25  static const Double_t kSensorHeight;
26  static const Double_t kSensorActiveHeight;
27  static const Double_t kSensorActiveWidth;
28  static const Double_t kSensorThickness;
29  static const Double_t kXPixelPitch;
30  static const Double_t kYPixelPitch;
31  static const Int_t kNPixelX = 1024;
32  static const Int_t kNPixelY = 512;
33  static const Double_t kSensorMargin;
34 
35  static const Double_t kSensorInterspace;
36  static const Double_t kSensorSideOffset;
37  static const Double_t kSensorTopOffset;
38  static const Double_t kLadderOffsetToEnd;
39  static const Double_t kFlexThickness;
40 
41 
42 
43 
45  static Double_t DiskThicknessInX0(Int_t Id) {return (Id >= 0 && Id < kNDisks) ? fgDiskThicknessInX0[Id] : 0.;}
46 
48  static Double_t DefaultPlaneZ(Int_t Id) {return (Id >= 0 && Id < kNDisks*2) ? fgPlaneZPos[Id]+(-(Id%2)*2-1)*0.0025 : 0.;} // Move to the middle of the CMOS sensor in Z direction
49 
50 
51 
52 
53 
54 
55  static const Int_t fNMaxPlanes = 20;
56 
57  static const Int_t fNMaxDigitsPerCluster = 50;
58  static const Double_t fCutForAvailableDigits;
59  static const Double_t fCutForAttachingDigits;
60 
61  static const Int_t fNMaxMCTracksPerCluster = 10;
62  static const Int_t fNMaxMCTracksPerDigit = 3;
63 
64  static const Double_t fElossPerElectron;
65 
66  // superposition between the active elements tasselling the MFT planes, for having a full acceptance coverage even in case of 10 degrees inclined tracks
67  static const Double_t fActiveSuperposition;
68 
69  static const Double_t fHeightActive;
70  static const Double_t fHeightReadout;
71 
72  // minimum border size between the end of the support plane and the sensors: fHeightReadout + 0.3
73  static const Double_t fSupportExtMargin;
74 
75  static const Int_t fNMaxDetElemPerPlane = 1000;
76 
77  static const Double_t fRadLengthSi;
78 
79  static const Double_t fWidthChip;
80 
81  static const Double_t fPrecisionPointOfClosestApproach;
82 
83  static const Double_t fZEvalKinem; // z coordinate at which the kinematics is evaluated for the ESD and AOD tracks
84 
85  static const Double_t fXVertexTolerance; // tolerance on the vertex for the first extrapolation of MUON tracks to I.P.
86  static const Double_t fYVertexTolerance; // tolerance on the vertex for the first extrapolation of MUON tracks to I.P.
87 
88  static const Double_t fPrimaryVertexResX; // expected res. in Pb-Pb for the prim vtx from ITS+MFT combined vertexing (should not be used, depends on contributors)
89  static const Double_t fPrimaryVertexResY; // expected res. in Pb-Pb for the prim vtx from ITS+MFT combined vertexing (should not be used, depends on contributors)
90  static const Double_t fPrimaryVertexResZ; // expected res. in Pb-Pb for the prim vtx from ITS+MFT combined vertexing (should not be used, depends on contributors)
91 
92  static const Double_t fMisalignmentMagnitude; // Expected misalignment magnitude (for MC, waiting for OCDB)
93 
94  static const Int_t fNMaxMuonsForPCA = 10;
95  static const Int_t fNMaxPileUpEvents = 5; // Max events to consider for pile-up studies
96  static const Int_t fLabelOffsetMC = 10000000; // Offset to be added to MC labels of tracks from merged underlying and pile-up events
97  static const Int_t fNMaxLaddersPerPlane = 20;
98  static const Int_t fNMaxChipsPerLadder = 5;
99  static const Int_t fNMFTHalves = 2;
100  static const Double_t fChipWidth;
101  static const Double_t fMinDistanceLadderFromSupportRMin;
102  static const Double_t fChipThickness;
103  static const Double_t fChipInterspace; // Offset between two adjacent chip on a ladder
104  static const Double_t fChipSideOffset; // Side Offset between the ladder edge and the chip edge
105  static const Double_t fChipTopOffset; // Top Offset between the ladder edge and the chip edge
106 
107 
108 protected:
109 
110  AliMFTConstants() : TObject() {}
111  virtual ~AliMFTConstants(){}
112  static Double_t fgDiskThicknessInX0[kNDisks];
113  static Double_t fgPlaneZPos[2*kNDisks];
114 
116  ClassDef(AliMFTConstants, 4);
118 
119 };
120 
121 #endif
122 
static const Double_t fYVertexTolerance
static const Double_t fPrecisionPointOfClosestApproach
precision (along z) for the research of the point of closest approach for a dimuon ...
static const Double_t kYPixelPitch
Pixel pitch along Y.
static const Int_t fNMaxMCTracksPerCluster
max number of MC tracks sharing the same MFT cluster
static const Double_t kLadderOffsetToEnd
Offset of sensor compare to ladder connector edge.
static const Double_t kSensorMargin
Inactive margin around active area.
static const Double_t fPrimaryVertexResY
static const Double_t fCutForAttachingDigits
static Double_t DefaultPlaneZ(Int_t Id)
Return Plane Z position.
static const Double_t fPrimaryVertexResX
static const Int_t fNMaxPlanes
static const Double_t kFlexThickness
Flex Thickness.
static const Int_t fNMaxChipsPerLadder
static const Int_t fNMaxMCTracksPerDigit
max number of MC tracks sharing the same MFT digit
static const Double_t kSensorThickness
CMOS Sensor Thickness.
static const Double_t kXPixelPitch
Pixel pitch along X.
static const Double_t kSensorSideOffset
Offset of sensor compare to ladder edge (close to the beam pipe)
static const Double_t fMisalignmentMagnitude
static const Int_t kNPixelX
Number of Pixel along X.
static const Int_t fLabelOffsetMC
static Double_t fgDiskThicknessInX0[kNDisks]
default disk thickness in X0 for reconstruction
static const Double_t fHeightActive
height of the active elements
static const Double_t fZEvalKinem
static const Double_t fActiveSuperposition
static const Double_t kSensorActiveWidth
CMOS Sensor Active width.
static const Double_t kSensorLength
CMOS Sensor Length.
static const Double_t kSensorActiveHeight
CMOS Sensor Active height.
static const Int_t kNPixelY
Number of Pixel along Y.
static const Double_t fPrimaryVertexResZ
static const Int_t fNMaxMuonsForPCA
static const Double_t fHeightReadout
height of the readout elements attached to the active ones
Constants for the Muon Forward Tracker.
static const Int_t fNMFTHalves
static Double_t fgPlaneZPos[2 *kNDisks]
default Plane Z position for reconstruction
static const Double_t fXVertexTolerance
static const Double_t fChipThickness
static const Int_t fNMaxPileUpEvents
static const Double_t fElossPerElectron
static Double_t DiskThicknessInX0(Int_t Id)
Return Disk thickness in X0.
static const Double_t fRadLengthSi
expressed in cm
static const Double_t kSensorInterspace
Interspace between 2 sensors on a ladder.
static const Int_t fNMaxDigitsPerCluster
max number of digits per cluster
static const Double_t fChipTopOffset
static const Double_t fMinDistanceLadderFromSupportRMin
static const Int_t fNMaxDetElemPerPlane
static const Int_t kNDisks
Number of Disk.
static const Double_t fSupportExtMargin
static const Double_t kSensorTopOffset
Offset of sensor compare to ladder top edge.
static const Double_t fChipWidth
static const Double_t fWidthChip
expressed in cm
static const Double_t fChipInterspace
static const Double_t fCutForAvailableDigits
static const Double_t kSensorHeight
CMOS Sensor Height.
virtual ~AliMFTConstants()
static const Double_t fChipSideOffset
static const Int_t fNMaxLaddersPerPlane