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1 | /************************************************************************** |
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2 | * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. * |
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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 | |
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16 | #include "AliITSRecoParam.h" |
17 | |
18 | /* $Id$ */ |
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19 | |
20 | /////////////////////////////////////////////////////////////////////////////// |
21 | // // |
22 | // Class with ITS reconstruction parameters // |
23 | // Origin: andrea.dainese@lnl.infn.it // |
24 | // // |
25 | /////////////////////////////////////////////////////////////////////////////// |
26 | |
27 | |
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28 | |
29 | ClassImp(AliITSRecoParam) |
30 | |
31 | |
32 | //_____________________________________________________________________________ |
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33 | AliITSRecoParam::AliITSRecoParam() : TObject(), |
34 | fNSigmaYLayerForRoadY(0), |
35 | fNSigmaRoadY(0), |
36 | fNSigmaZLayerForRoadZ(0), |
37 | fNSigmaRoadZ(0), |
38 | fNSigma2RoadZC(0), |
39 | fNSigma2RoadYC(0), |
40 | fNSigma2RoadZNonC(0), |
41 | fNSigma2RoadYNonC(0), |
42 | fMaxNormChi2NonCForHypothesis(0), |
43 | fMaxChi2(0), |
44 | fMaxRoad(0), |
45 | fMaxChi2In(0), |
46 | fChi2PerCluster(0), |
47 | fXV(0), |
48 | fYV(0), |
49 | fZV(0), |
50 | fSigmaXV(0), |
51 | fSigmaYV(0), |
52 | fSigmaZV(0), |
53 | fVertexCut(0), |
54 | fMaxDZforPrimTrk(0), |
55 | fMaxDZToUseConstraint(0), |
56 | fMaxDforV0dghtrForProlongation(0), |
57 | fMaxDForProlongation(0), |
58 | fMaxDZForProlongation(0), |
59 | fMinPtForProlongation(0), |
60 | fAddVirtualClustersInDeadZone(kTRUE), |
61 | fZWindowDeadZone(0), |
62 | fSigmaXDeadZoneHit2(0), |
63 | fSigmaZDeadZoneHit2(0), |
64 | fXPassDeadZoneHits(0), |
65 | fUseTGeoInTracker(kFALSE), |
66 | fAllowSharedClusters(kTRUE), |
67 | fUseNominalClusterErrors(kFALSE), |
68 | fFindV0s(kTRUE) |
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69 | { |
70 | // |
71 | // constructor |
72 | // |
73 | SetLayersParameters(); |
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74 | SetUseTGeoInTracker(kFALSE); |
75 | SetAllowSharedClusters(kTRUE); |
76 | SetFindV0s(kTRUE); |
77 | SetAddVirtualClustersInDeadZone(kTRUE); |
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78 | SetUseAmplitudeInfo(kTRUE); |
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79 | } |
80 | //_____________________________________________________________________________ |
81 | AliITSRecoParam::~AliITSRecoParam() |
82 | { |
83 | // |
84 | // destructor |
85 | // |
86 | } |
87 | //_____________________________________________________________________________ |
88 | AliITSRecoParam *AliITSRecoParam::GetHighFluxParam() |
89 | { |
90 | // |
91 | // make default reconstruction parameters for hig flux env. |
92 | // |
93 | AliITSRecoParam *param = new AliITSRecoParam(); |
94 | |
95 | param->fMaxSnp = 0.95; |
96 | |
97 | param->fNSigmaYLayerForRoadY = 4.; |
98 | param->fNSigmaRoadY = 7.5; |
99 | param->fNSigmaZLayerForRoadZ = 4.; |
100 | param->fNSigmaRoadZ = 7.5; |
101 | |
102 | param->fNSigma2RoadZC = 60.; //7.75^2 |
103 | param->fNSigma2RoadYC = 60.; //7.75^2 |
104 | param->fNSigma2RoadZNonC = 50.; //7.07^2 |
105 | param->fNSigma2RoadYNonC = 50.; //7.07^2 |
106 | |
107 | param->fMaxChi2PerCluster[0] = 11.; //7 |
108 | param->fMaxChi2PerCluster[1] = 12.; //5 |
109 | param->fMaxChi2PerCluster[2] = 12.; //8 |
110 | param->fMaxChi2PerCluster[3] = 5.; //8 |
111 | param->fMaxChi2PerCluster[4] = 12.; //6.5 |
112 | |
113 | param->fMaxNormChi2NonC[0] = 7.; |
114 | param->fMaxNormChi2NonC[1] = 8.; |
115 | param->fMaxNormChi2NonC[2] = 8.; |
116 | param->fMaxNormChi2NonC[3] = 11.; |
117 | param->fMaxNormChi2NonC[4] = 14.; |
118 | param->fMaxNormChi2NonC[5] = 25.; |
119 | |
120 | param->fMaxNormChi2C[0] = 11.; |
121 | param->fMaxNormChi2C[1] = 13.; |
122 | param->fMaxNormChi2C[2] = 15.; |
123 | param->fMaxNormChi2C[3] = 18.; |
124 | param->fMaxNormChi2C[4] = 30.; |
125 | param->fMaxNormChi2C[5] = 35.; |
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126 | |
127 | param->fMaxNormChi2NonCForHypothesis = 7.; |
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128 | |
129 | param->fMaxChi2 = 35.; |
130 | |
131 | param->fMaxChi2s[0] = 25.; //40 |
132 | param->fMaxChi2s[1] = 25.; //40 |
133 | param->fMaxChi2s[2] = 25.; //40 |
134 | param->fMaxChi2s[3] = 25.; //40 |
135 | param->fMaxChi2s[4] = 40.; //40 |
136 | param->fMaxChi2s[5] = 50.; //40 |
137 | |
138 | param->fMaxRoad = 6.; |
139 | |
140 | // not used |
141 | param->fMaxChi2In = 16.; |
142 | |
143 | param->fMaxChi2sR[0] = 10.; |
144 | param->fMaxChi2sR[1] = 10.; |
145 | param->fMaxChi2sR[2] = 10.; |
146 | param->fMaxChi2sR[3] = 10.; |
147 | param->fMaxChi2sR[4] = 30.; |
148 | param->fMaxChi2sR[5] = 40.; |
149 | |
150 | param->fChi2PerCluster = 9.; |
151 | // not used |
152 | |
153 | param->fXV = 0.; |
154 | param->fYV = 0.; |
155 | param->fZV = 0.; |
156 | param->fSigmaXV = 0.0050; |
157 | param->fSigmaYV = 0.0050; |
158 | param->fSigmaZV = 0.0100; |
159 | |
160 | param->fVertexCut = 25.; |
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161 | |
162 | param->fMaxDZforPrimTrk = 0.4; |
163 | param->fMaxDZToUseConstraint = 3.; |
164 | |
165 | param->fMaxDforV0dghtrForProlongation = 30.; |
166 | param->fMaxDForProlongation = 10.; |
167 | param->fMaxDZForProlongation = 20.; |
168 | param->fMinPtForProlongation = 0.120; |
169 | |
170 | param->fZWindowDeadZone = 2.0; |
171 | param->fSigmaXDeadZoneHit2 = 0.004/12.; |
172 | param->fSigmaZDeadZoneHit2 = 0.001/12.; |
173 | param->fXPassDeadZoneHits = 0.018; |
174 | |
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175 | |
176 | return param; |
177 | } |
178 | //_____________________________________________________________________________ |
179 | AliITSRecoParam *AliITSRecoParam::GetLowFluxParam() |
180 | { |
181 | // |
182 | // make default reconstruction parameters for low flux env. |
183 | // |
184 | return GetHighFluxParam(); |
185 | } |
186 | //_____________________________________________________________________________ |
187 | AliITSRecoParam *AliITSRecoParam::GetCosmicTestParam() |
188 | { |
189 | // |
190 | // make default reconstruction parameters for cosmics |
191 | // |
192 | return GetHighFluxParam(); |
193 | } |
194 | //_____________________________________________________________________________ |
195 | void AliITSRecoParam::SetLayersParameters() |
196 | { |
197 | // |
198 | // number of layers and layers spatial resolutions |
199 | // |
200 | |
201 | // spatial resolutions of the detectors |
202 | // y: 12 12 38 38 20 20 micron |
203 | fSigmaY2[0]=1.44e-6; |
204 | fSigmaY2[1]=1.44e-6; |
205 | fSigmaY2[2]=1.444e-5; |
206 | fSigmaY2[3]=1.444e-5; |
207 | fSigmaY2[4]=4.0e-6; |
208 | fSigmaY2[5]=4.0e-6; |
209 | // z: 120 120 28 28 830 830 micron |
210 | fSigmaZ2[0]=1.44e-4; |
211 | fSigmaZ2[1]=1.44e-4; |
212 | fSigmaZ2[2]=7.84e-6; |
213 | fSigmaZ2[3]=7.84e-6; |
214 | fSigmaZ2[4]=6.889e-3; |
215 | fSigmaZ2[5]=6.889e-3; |
216 | |
217 | return; |
218 | } |
219 | |