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44347160 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | ||
17 | /////////////////////////////////////////////////////////////////////////////// | |
18 | // // | |
19 | // Class with ITS reconstruction parameters // | |
20 | // Origin: andrea.dainese@lnl.infn.it // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | ||
25 | #include "AliITSRecoParam.h" | |
26 | ||
27 | ClassImp(AliITSRecoParam) | |
28 | ||
29 | ||
30 | //_____________________________________________________________________________ | |
31 | AliITSRecoParam::AliITSRecoParam() | |
32 | { | |
33 | // | |
34 | // constructor | |
35 | // | |
36 | SetLayersParameters(); | |
37 | } | |
38 | //_____________________________________________________________________________ | |
39 | AliITSRecoParam::~AliITSRecoParam() | |
40 | { | |
41 | // | |
42 | // destructor | |
43 | // | |
44 | } | |
45 | //_____________________________________________________________________________ | |
46 | AliITSRecoParam *AliITSRecoParam::GetHighFluxParam() | |
47 | { | |
48 | // | |
49 | // make default reconstruction parameters for hig flux env. | |
50 | // | |
51 | AliITSRecoParam *param = new AliITSRecoParam(); | |
52 | ||
53 | param->fMaxSnp = 0.95; | |
54 | ||
55 | param->fNSigmaYLayerForRoadY = 4.; | |
56 | param->fNSigmaRoadY = 7.5; | |
57 | param->fNSigmaZLayerForRoadZ = 4.; | |
58 | param->fNSigmaRoadZ = 7.5; | |
59 | ||
60 | param->fNSigma2RoadZC = 60.; //7.75^2 | |
61 | param->fNSigma2RoadYC = 60.; //7.75^2 | |
62 | param->fNSigma2RoadZNonC = 50.; //7.07^2 | |
63 | param->fNSigma2RoadYNonC = 50.; //7.07^2 | |
64 | ||
65 | param->fMaxChi2PerCluster[0] = 11.; //7 | |
66 | param->fMaxChi2PerCluster[1] = 12.; //5 | |
67 | param->fMaxChi2PerCluster[2] = 12.; //8 | |
68 | param->fMaxChi2PerCluster[3] = 5.; //8 | |
69 | param->fMaxChi2PerCluster[4] = 12.; //6.5 | |
70 | ||
71 | param->fMaxNormChi2NonC[0] = 7.; | |
72 | param->fMaxNormChi2NonC[1] = 8.; | |
73 | param->fMaxNormChi2NonC[2] = 8.; | |
74 | param->fMaxNormChi2NonC[3] = 11.; | |
75 | param->fMaxNormChi2NonC[4] = 14.; | |
76 | param->fMaxNormChi2NonC[5] = 25.; | |
77 | ||
78 | param->fMaxNormChi2C[0] = 11.; | |
79 | param->fMaxNormChi2C[1] = 13.; | |
80 | param->fMaxNormChi2C[2] = 15.; | |
81 | param->fMaxNormChi2C[3] = 18.; | |
82 | param->fMaxNormChi2C[4] = 30.; | |
83 | param->fMaxNormChi2C[5] = 35.; | |
84 | ||
85 | param->fMaxChi2 = 35.; | |
86 | ||
87 | param->fMaxChi2s[0] = 25.; //40 | |
88 | param->fMaxChi2s[1] = 25.; //40 | |
89 | param->fMaxChi2s[2] = 25.; //40 | |
90 | param->fMaxChi2s[3] = 25.; //40 | |
91 | param->fMaxChi2s[4] = 40.; //40 | |
92 | param->fMaxChi2s[5] = 50.; //40 | |
93 | ||
94 | param->fMaxRoad = 6.; | |
95 | ||
96 | // not used | |
97 | param->fMaxChi2In = 16.; | |
98 | ||
99 | param->fMaxChi2sR[0] = 10.; | |
100 | param->fMaxChi2sR[1] = 10.; | |
101 | param->fMaxChi2sR[2] = 10.; | |
102 | param->fMaxChi2sR[3] = 10.; | |
103 | param->fMaxChi2sR[4] = 30.; | |
104 | param->fMaxChi2sR[5] = 40.; | |
105 | ||
106 | param->fChi2PerCluster = 9.; | |
107 | // not used | |
108 | ||
109 | param->fXV = 0.; | |
110 | param->fYV = 0.; | |
111 | param->fZV = 0.; | |
112 | param->fSigmaXV = 0.0050; | |
113 | param->fSigmaYV = 0.0050; | |
114 | param->fSigmaZV = 0.0100; | |
115 | ||
116 | param->fVertexCut = 25.; | |
117 | ||
118 | return param; | |
119 | } | |
120 | //_____________________________________________________________________________ | |
121 | AliITSRecoParam *AliITSRecoParam::GetLowFluxParam() | |
122 | { | |
123 | // | |
124 | // make default reconstruction parameters for low flux env. | |
125 | // | |
126 | return GetHighFluxParam(); | |
127 | } | |
128 | //_____________________________________________________________________________ | |
129 | AliITSRecoParam *AliITSRecoParam::GetCosmicTestParam() | |
130 | { | |
131 | // | |
132 | // make default reconstruction parameters for cosmics | |
133 | // | |
134 | return GetHighFluxParam(); | |
135 | } | |
136 | //_____________________________________________________________________________ | |
137 | void AliITSRecoParam::SetLayersParameters() | |
138 | { | |
139 | // | |
140 | // number of layers and layers spatial resolutions | |
141 | // | |
142 | ||
143 | // spatial resolutions of the detectors | |
144 | // y: 12 12 38 38 20 20 micron | |
145 | fSigmaY2[0]=1.44e-6; | |
146 | fSigmaY2[1]=1.44e-6; | |
147 | fSigmaY2[2]=1.444e-5; | |
148 | fSigmaY2[3]=1.444e-5; | |
149 | fSigmaY2[4]=4.0e-6; | |
150 | fSigmaY2[5]=4.0e-6; | |
151 | // z: 120 120 28 28 830 830 micron | |
152 | fSigmaZ2[0]=1.44e-4; | |
153 | fSigmaZ2[1]=1.44e-4; | |
154 | fSigmaZ2[2]=7.84e-6; | |
155 | fSigmaZ2[3]=7.84e-6; | |
156 | fSigmaZ2[4]=6.889e-3; | |
157 | fSigmaZ2[5]=6.889e-3; | |
158 | ||
159 | return; | |
160 | } | |
161 |