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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(); |
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37 | SetUseTGeoInTracker(kFALSE); |
38 | SetAllowSharedClusters(kTRUE); |
39 | SetFindV0s(kTRUE); |
40 | SetAddVirtualClustersInDeadZone(kTRUE); |
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41 | } |
42 | //_____________________________________________________________________________ |
43 | AliITSRecoParam::~AliITSRecoParam() |
44 | { |
45 | // |
46 | // destructor |
47 | // |
48 | } |
49 | //_____________________________________________________________________________ |
50 | AliITSRecoParam *AliITSRecoParam::GetHighFluxParam() |
51 | { |
52 | // |
53 | // make default reconstruction parameters for hig flux env. |
54 | // |
55 | AliITSRecoParam *param = new AliITSRecoParam(); |
56 | |
57 | param->fMaxSnp = 0.95; |
58 | |
59 | param->fNSigmaYLayerForRoadY = 4.; |
60 | param->fNSigmaRoadY = 7.5; |
61 | param->fNSigmaZLayerForRoadZ = 4.; |
62 | param->fNSigmaRoadZ = 7.5; |
63 | |
64 | param->fNSigma2RoadZC = 60.; //7.75^2 |
65 | param->fNSigma2RoadYC = 60.; //7.75^2 |
66 | param->fNSigma2RoadZNonC = 50.; //7.07^2 |
67 | param->fNSigma2RoadYNonC = 50.; //7.07^2 |
68 | |
69 | param->fMaxChi2PerCluster[0] = 11.; //7 |
70 | param->fMaxChi2PerCluster[1] = 12.; //5 |
71 | param->fMaxChi2PerCluster[2] = 12.; //8 |
72 | param->fMaxChi2PerCluster[3] = 5.; //8 |
73 | param->fMaxChi2PerCluster[4] = 12.; //6.5 |
74 | |
75 | param->fMaxNormChi2NonC[0] = 7.; |
76 | param->fMaxNormChi2NonC[1] = 8.; |
77 | param->fMaxNormChi2NonC[2] = 8.; |
78 | param->fMaxNormChi2NonC[3] = 11.; |
79 | param->fMaxNormChi2NonC[4] = 14.; |
80 | param->fMaxNormChi2NonC[5] = 25.; |
81 | |
82 | param->fMaxNormChi2C[0] = 11.; |
83 | param->fMaxNormChi2C[1] = 13.; |
84 | param->fMaxNormChi2C[2] = 15.; |
85 | param->fMaxNormChi2C[3] = 18.; |
86 | param->fMaxNormChi2C[4] = 30.; |
87 | param->fMaxNormChi2C[5] = 35.; |
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88 | |
89 | param->fMaxNormChi2NonCForHypothesis = 7.; |
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90 | |
91 | param->fMaxChi2 = 35.; |
92 | |
93 | param->fMaxChi2s[0] = 25.; //40 |
94 | param->fMaxChi2s[1] = 25.; //40 |
95 | param->fMaxChi2s[2] = 25.; //40 |
96 | param->fMaxChi2s[3] = 25.; //40 |
97 | param->fMaxChi2s[4] = 40.; //40 |
98 | param->fMaxChi2s[5] = 50.; //40 |
99 | |
100 | param->fMaxRoad = 6.; |
101 | |
102 | // not used |
103 | param->fMaxChi2In = 16.; |
104 | |
105 | param->fMaxChi2sR[0] = 10.; |
106 | param->fMaxChi2sR[1] = 10.; |
107 | param->fMaxChi2sR[2] = 10.; |
108 | param->fMaxChi2sR[3] = 10.; |
109 | param->fMaxChi2sR[4] = 30.; |
110 | param->fMaxChi2sR[5] = 40.; |
111 | |
112 | param->fChi2PerCluster = 9.; |
113 | // not used |
114 | |
115 | param->fXV = 0.; |
116 | param->fYV = 0.; |
117 | param->fZV = 0.; |
118 | param->fSigmaXV = 0.0050; |
119 | param->fSigmaYV = 0.0050; |
120 | param->fSigmaZV = 0.0100; |
121 | |
122 | param->fVertexCut = 25.; |
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123 | |
124 | param->fMaxDZforPrimTrk = 0.4; |
125 | param->fMaxDZToUseConstraint = 3.; |
126 | |
127 | param->fMaxDforV0dghtrForProlongation = 30.; |
128 | param->fMaxDForProlongation = 10.; |
129 | param->fMaxDZForProlongation = 20.; |
130 | param->fMinPtForProlongation = 0.120; |
131 | |
132 | param->fZWindowDeadZone = 2.0; |
133 | param->fSigmaXDeadZoneHit2 = 0.004/12.; |
134 | param->fSigmaZDeadZoneHit2 = 0.001/12.; |
135 | param->fXPassDeadZoneHits = 0.018; |
136 | |
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137 | |
138 | return param; |
139 | } |
140 | //_____________________________________________________________________________ |
141 | AliITSRecoParam *AliITSRecoParam::GetLowFluxParam() |
142 | { |
143 | // |
144 | // make default reconstruction parameters for low flux env. |
145 | // |
146 | return GetHighFluxParam(); |
147 | } |
148 | //_____________________________________________________________________________ |
149 | AliITSRecoParam *AliITSRecoParam::GetCosmicTestParam() |
150 | { |
151 | // |
152 | // make default reconstruction parameters for cosmics |
153 | // |
154 | return GetHighFluxParam(); |
155 | } |
156 | //_____________________________________________________________________________ |
157 | void AliITSRecoParam::SetLayersParameters() |
158 | { |
159 | // |
160 | // number of layers and layers spatial resolutions |
161 | // |
162 | |
163 | // spatial resolutions of the detectors |
164 | // y: 12 12 38 38 20 20 micron |
165 | fSigmaY2[0]=1.44e-6; |
166 | fSigmaY2[1]=1.44e-6; |
167 | fSigmaY2[2]=1.444e-5; |
168 | fSigmaY2[3]=1.444e-5; |
169 | fSigmaY2[4]=4.0e-6; |
170 | fSigmaY2[5]=4.0e-6; |
171 | // z: 120 120 28 28 830 830 micron |
172 | fSigmaZ2[0]=1.44e-4; |
173 | fSigmaZ2[1]=1.44e-4; |
174 | fSigmaZ2[2]=7.84e-6; |
175 | fSigmaZ2[3]=7.84e-6; |
176 | fSigmaZ2[4]=6.889e-3; |
177 | fSigmaZ2[5]=6.889e-3; |
178 | |
179 | return; |
180 | } |
181 | |