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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(); | |
afd25725 | 37 | SetUseTGeoInTracker(kFALSE); |
38 | SetAllowSharedClusters(kTRUE); | |
39 | SetFindV0s(kTRUE); | |
40 | SetAddVirtualClustersInDeadZone(kTRUE); | |
44347160 | 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.; | |
afd25725 | 88 | |
89 | param->fMaxNormChi2NonCForHypothesis = 7.; | |
44347160 | 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.; | |
afd25725 | 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 | ||
44347160 | 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 |