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44347160 | 1 | /************************************************************************** |
572f41f9 | 2 | * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. * |
44347160 | 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 | ||
572f41f9 | 16 | #include "AliITSRecoParam.h" |
17 | ||
18 | /* $Id$ */ | |
44347160 | 19 | |
20 | /////////////////////////////////////////////////////////////////////////////// | |
21 | // // | |
22 | // Class with ITS reconstruction parameters // | |
23 | // Origin: andrea.dainese@lnl.infn.it // | |
24 | // // | |
25 | /////////////////////////////////////////////////////////////////////////////// | |
26 | ||
27 | ||
44347160 | 28 | |
29 | ClassImp(AliITSRecoParam) | |
30 | ||
e50912db | 31 | const Int_t AliITSRecoParam::fgkLayersNotToSkip[AliITSgeomTGeo::kNLayers]={0,0,0,0,0,0}; |
32 | const Int_t AliITSRecoParam::fgkLastLayerToTrackTo=0; | |
33 | const Int_t AliITSRecoParam::fgkMaxDetectorPerLayer=1000; | |
34 | const Double_t AliITSRecoParam::fgkriw=80.0; | |
35 | const Double_t AliITSRecoParam::fgkdiw=0.0053; | |
36 | const Double_t AliITSRecoParam::fgkX0iw=30.0; | |
37 | const Double_t AliITSRecoParam::fgkrcd=61.0; | |
38 | const Double_t AliITSRecoParam::fgkdcd=0.0053; | |
39 | const Double_t AliITSRecoParam::fgkX0cd=30.0; | |
40 | const Double_t AliITSRecoParam::fgkyr=12.8; | |
41 | const Double_t AliITSRecoParam::fgkdr=0.03; | |
42 | const Double_t AliITSRecoParam::fgkzm=0.2; | |
43 | const Double_t AliITSRecoParam::fgkdm=0.40; | |
44 | const Double_t AliITSRecoParam::fgkrs=50.0; | |
45 | const Double_t AliITSRecoParam::fgkds=0.001; | |
46 | const Double_t AliITSRecoParam::fgkrInsideITSscreen=49.0; | |
47 | const Double_t AliITSRecoParam::fgkrInsideSPD1=3.7; | |
48 | const Double_t AliITSRecoParam::fgkrPipe=3.; | |
49 | const Double_t AliITSRecoParam::fgkrInsidePipe=2.7; | |
50 | const Double_t AliITSRecoParam::fgkrOutsidePipe=3.3; | |
51 | const Double_t AliITSRecoParam::fgkdPipe=0.0028; | |
52 | const Double_t AliITSRecoParam::fgkrInsideShield[2]={7.5,25.0}; | |
53 | const Double_t AliITSRecoParam::fgkrOutsideShield[2]={10.5,30.0}; | |
54 | const Double_t AliITSRecoParam::fgkdshield[2]={0.0097,0.0034}; | |
55 | const Double_t AliITSRecoParam::fgkX0shield[2]={38.6,42.0}; | |
56 | const Double_t AliITSRecoParam::fgkX0Air=21.82; | |
57 | const Double_t AliITSRecoParam::fgkX0Be=65.19; | |
58 | const Double_t AliITSRecoParam::fgkBoundaryWidth=0.2; | |
59 | const Double_t AliITSRecoParam::fgkDeltaXNeighbDets=0.5; | |
60 | const Double_t AliITSRecoParam::fgkSPDdetzlength=6.960; // 7.072-2*0.056 | |
61 | const Double_t AliITSRecoParam::fgkSPDdetxlength=1.298; // 1.410-2*0.056 | |
44347160 | 62 | |
63 | //_____________________________________________________________________________ | |
572f41f9 | 64 | AliITSRecoParam::AliITSRecoParam() : TObject(), |
e50912db | 65 | fMaxSnp(1.), |
572f41f9 | 66 | fNSigmaYLayerForRoadY(0), |
67 | fNSigmaRoadY(0), | |
68 | fNSigmaZLayerForRoadZ(0), | |
69 | fNSigmaRoadZ(0), | |
70 | fNSigma2RoadZC(0), | |
71 | fNSigma2RoadYC(0), | |
72 | fNSigma2RoadZNonC(0), | |
73 | fNSigma2RoadYNonC(0), | |
74 | fMaxNormChi2NonCForHypothesis(0), | |
75 | fMaxChi2(0), | |
76 | fMaxRoad(0), | |
77 | fMaxChi2In(0), | |
78 | fChi2PerCluster(0), | |
79 | fXV(0), | |
80 | fYV(0), | |
81 | fZV(0), | |
82 | fSigmaXV(0), | |
83 | fSigmaYV(0), | |
84 | fSigmaZV(0), | |
85 | fVertexCut(0), | |
86 | fMaxDZforPrimTrk(0), | |
87 | fMaxDZToUseConstraint(0), | |
88 | fMaxDforV0dghtrForProlongation(0), | |
89 | fMaxDForProlongation(0), | |
90 | fMaxDZForProlongation(0), | |
91 | fMinPtForProlongation(0), | |
92 | fAddVirtualClustersInDeadZone(kTRUE), | |
93 | fZWindowDeadZone(0), | |
94 | fSigmaXDeadZoneHit2(0), | |
95 | fSigmaZDeadZoneHit2(0), | |
96 | fXPassDeadZoneHits(0), | |
e50912db | 97 | fUseTGeoInTracker(0), |
572f41f9 | 98 | fAllowSharedClusters(kTRUE), |
e50912db | 99 | fClusterErrorsParam(1), |
2755f080 | 100 | fExtendedEtaAcceptance(kFALSE), |
101 | fFactorSAWindowSizes(1.), | |
102 | fFindV0s(kTRUE) | |
44347160 | 103 | { |
104 | // | |
105 | // constructor | |
106 | // | |
107 | SetLayersParameters(); | |
2755f080 | 108 | for(Int_t i=0; i<AliITSgeomTGeo::kNLayers; i++) fLayersToSkip[i]=0; |
e50912db | 109 | SetUseTGeoInTracker(0); |
afd25725 | 110 | SetAllowSharedClusters(kTRUE); |
111 | SetFindV0s(kTRUE); | |
112 | SetAddVirtualClustersInDeadZone(kTRUE); | |
572f41f9 | 113 | SetUseAmplitudeInfo(kTRUE); |
e50912db | 114 | SetClusterErrorsParam(1); |
44347160 | 115 | } |
116 | //_____________________________________________________________________________ | |
117 | AliITSRecoParam::~AliITSRecoParam() | |
118 | { | |
119 | // | |
120 | // destructor | |
121 | // | |
122 | } | |
123 | //_____________________________________________________________________________ | |
124 | AliITSRecoParam *AliITSRecoParam::GetHighFluxParam() | |
125 | { | |
126 | // | |
127 | // make default reconstruction parameters for hig flux env. | |
128 | // | |
129 | AliITSRecoParam *param = new AliITSRecoParam(); | |
130 | ||
131 | param->fMaxSnp = 0.95; | |
132 | ||
133 | param->fNSigmaYLayerForRoadY = 4.; | |
134 | param->fNSigmaRoadY = 7.5; | |
135 | param->fNSigmaZLayerForRoadZ = 4.; | |
136 | param->fNSigmaRoadZ = 7.5; | |
137 | ||
138 | param->fNSigma2RoadZC = 60.; //7.75^2 | |
139 | param->fNSigma2RoadYC = 60.; //7.75^2 | |
140 | param->fNSigma2RoadZNonC = 50.; //7.07^2 | |
141 | param->fNSigma2RoadYNonC = 50.; //7.07^2 | |
142 | ||
143 | param->fMaxChi2PerCluster[0] = 11.; //7 | |
144 | param->fMaxChi2PerCluster[1] = 12.; //5 | |
145 | param->fMaxChi2PerCluster[2] = 12.; //8 | |
146 | param->fMaxChi2PerCluster[3] = 5.; //8 | |
147 | param->fMaxChi2PerCluster[4] = 12.; //6.5 | |
148 | ||
149 | param->fMaxNormChi2NonC[0] = 7.; | |
150 | param->fMaxNormChi2NonC[1] = 8.; | |
151 | param->fMaxNormChi2NonC[2] = 8.; | |
152 | param->fMaxNormChi2NonC[3] = 11.; | |
153 | param->fMaxNormChi2NonC[4] = 14.; | |
154 | param->fMaxNormChi2NonC[5] = 25.; | |
155 | ||
156 | param->fMaxNormChi2C[0] = 11.; | |
157 | param->fMaxNormChi2C[1] = 13.; | |
158 | param->fMaxNormChi2C[2] = 15.; | |
159 | param->fMaxNormChi2C[3] = 18.; | |
160 | param->fMaxNormChi2C[4] = 30.; | |
161 | param->fMaxNormChi2C[5] = 35.; | |
afd25725 | 162 | |
163 | param->fMaxNormChi2NonCForHypothesis = 7.; | |
44347160 | 164 | |
165 | param->fMaxChi2 = 35.; | |
166 | ||
167 | param->fMaxChi2s[0] = 25.; //40 | |
168 | param->fMaxChi2s[1] = 25.; //40 | |
169 | param->fMaxChi2s[2] = 25.; //40 | |
170 | param->fMaxChi2s[3] = 25.; //40 | |
171 | param->fMaxChi2s[4] = 40.; //40 | |
172 | param->fMaxChi2s[5] = 50.; //40 | |
173 | ||
174 | param->fMaxRoad = 6.; | |
175 | ||
176 | // not used | |
177 | param->fMaxChi2In = 16.; | |
178 | ||
179 | param->fMaxChi2sR[0] = 10.; | |
180 | param->fMaxChi2sR[1] = 10.; | |
181 | param->fMaxChi2sR[2] = 10.; | |
182 | param->fMaxChi2sR[3] = 10.; | |
183 | param->fMaxChi2sR[4] = 30.; | |
184 | param->fMaxChi2sR[5] = 40.; | |
185 | ||
186 | param->fChi2PerCluster = 9.; | |
187 | // not used | |
188 | ||
189 | param->fXV = 0.; | |
190 | param->fYV = 0.; | |
191 | param->fZV = 0.; | |
192 | param->fSigmaXV = 0.0050; | |
193 | param->fSigmaYV = 0.0050; | |
194 | param->fSigmaZV = 0.0100; | |
195 | ||
196 | param->fVertexCut = 25.; | |
afd25725 | 197 | |
198 | param->fMaxDZforPrimTrk = 0.4; | |
199 | param->fMaxDZToUseConstraint = 3.; | |
200 | ||
201 | param->fMaxDforV0dghtrForProlongation = 30.; | |
202 | param->fMaxDForProlongation = 10.; | |
203 | param->fMaxDZForProlongation = 20.; | |
204 | param->fMinPtForProlongation = 0.120; | |
205 | ||
206 | param->fZWindowDeadZone = 2.0; | |
207 | param->fSigmaXDeadZoneHit2 = 0.004/12.; | |
208 | param->fSigmaZDeadZoneHit2 = 0.001/12.; | |
209 | param->fXPassDeadZoneHits = 0.018; | |
210 | ||
44347160 | 211 | |
212 | return param; | |
213 | } | |
214 | //_____________________________________________________________________________ | |
215 | AliITSRecoParam *AliITSRecoParam::GetLowFluxParam() | |
216 | { | |
217 | // | |
218 | // make default reconstruction parameters for low flux env. | |
219 | // | |
220 | return GetHighFluxParam(); | |
221 | } | |
222 | //_____________________________________________________________________________ | |
223 | AliITSRecoParam *AliITSRecoParam::GetCosmicTestParam() | |
224 | { | |
225 | // | |
226 | // make default reconstruction parameters for cosmics | |
227 | // | |
e340bb86 | 228 | AliITSRecoParam *param = new AliITSRecoParam(); |
229 | ||
2755f080 | 230 | // larger seach windows for SA (in case of large misalignments) |
231 | param->SetFactorSAWindowSizes(3.); | |
e340bb86 | 232 | |
233 | param->fMaxSnp = 0.95; | |
234 | ||
235 | param->fNSigmaYLayerForRoadY = 4.; | |
236 | param->fNSigmaRoadY = 7.5; | |
237 | param->fNSigmaZLayerForRoadZ = 4.; | |
238 | param->fNSigmaRoadZ = 7.5; | |
239 | ||
240 | param->fNSigma2RoadZC = 60.; //7.75^2 | |
241 | param->fNSigma2RoadYC = 60.; //7.75^2 | |
242 | param->fNSigma2RoadZNonC = 50.; //7.07^2 | |
243 | param->fNSigma2RoadYNonC = 50.; //7.07^2 | |
244 | ||
245 | param->fMaxChi2PerCluster[0] = 11.; //7 | |
246 | param->fMaxChi2PerCluster[1] = 12.; //5 | |
247 | param->fMaxChi2PerCluster[2] = 12.; //8 | |
248 | param->fMaxChi2PerCluster[3] = 5.; //8 | |
249 | param->fMaxChi2PerCluster[4] = 12.; //6.5 | |
250 | ||
251 | param->fMaxNormChi2NonC[0] = 7.; | |
252 | param->fMaxNormChi2NonC[1] = 8.; | |
253 | param->fMaxNormChi2NonC[2] = 8.; | |
254 | param->fMaxNormChi2NonC[3] = 11.; | |
255 | param->fMaxNormChi2NonC[4] = 14.; | |
256 | param->fMaxNormChi2NonC[5] = 25.; | |
257 | ||
258 | param->fMaxNormChi2C[0] = 11.; | |
259 | param->fMaxNormChi2C[1] = 13.; | |
260 | param->fMaxNormChi2C[2] = 15.; | |
261 | param->fMaxNormChi2C[3] = 18.; | |
262 | param->fMaxNormChi2C[4] = 30.; | |
263 | param->fMaxNormChi2C[5] = 35.; | |
264 | ||
265 | param->fMaxNormChi2NonCForHypothesis = 7.; | |
266 | ||
267 | param->fMaxChi2 = 35.; | |
268 | ||
269 | param->fMaxChi2s[0] = 25.; //40 | |
270 | param->fMaxChi2s[1] = 25.; //40 | |
271 | param->fMaxChi2s[2] = 25.; //40 | |
272 | param->fMaxChi2s[3] = 25.; //40 | |
273 | param->fMaxChi2s[4] = 40.; //40 | |
274 | param->fMaxChi2s[5] = 50.; //40 | |
275 | ||
276 | param->fMaxRoad = 6.; | |
277 | ||
278 | // not used | |
279 | param->fMaxChi2In = 16.; | |
280 | ||
281 | param->fMaxChi2sR[0] = 10.; | |
282 | param->fMaxChi2sR[1] = 10.; | |
283 | param->fMaxChi2sR[2] = 10.; | |
284 | param->fMaxChi2sR[3] = 10.; | |
285 | param->fMaxChi2sR[4] = 30.; | |
286 | param->fMaxChi2sR[5] = 40.; | |
287 | ||
288 | param->fChi2PerCluster = 9.; | |
289 | // not used | |
290 | ||
291 | param->fXV = 0.; | |
292 | param->fYV = 0.; | |
293 | param->fZV = 0.; | |
294 | param->fSigmaXV = 0.0050; | |
295 | param->fSigmaYV = 0.0050; | |
296 | param->fSigmaZV = 0.0100; | |
297 | ||
298 | param->fVertexCut = 25.; | |
299 | ||
300 | param->fMaxDZforPrimTrk = 0.4; | |
301 | param->fMaxDZToUseConstraint = 3.; | |
302 | ||
303 | param->fMaxDforV0dghtrForProlongation = 30.; | |
304 | param->fMaxDForProlongation = 10.; | |
305 | param->fMaxDZForProlongation = 20.; | |
306 | param->fMinPtForProlongation = 0.120; | |
307 | ||
308 | param->fZWindowDeadZone = 2.0; | |
309 | param->fSigmaXDeadZoneHit2 = 0.004/12.; | |
310 | param->fSigmaZDeadZoneHit2 = 0.001/12.; | |
311 | param->fXPassDeadZoneHits = 0.018; | |
312 | ||
313 | ||
314 | return param; | |
44347160 | 315 | } |
316 | //_____________________________________________________________________________ | |
317 | void AliITSRecoParam::SetLayersParameters() | |
318 | { | |
319 | // | |
320 | // number of layers and layers spatial resolutions | |
321 | // | |
322 | ||
323 | // spatial resolutions of the detectors | |
324 | // y: 12 12 38 38 20 20 micron | |
325 | fSigmaY2[0]=1.44e-6; | |
326 | fSigmaY2[1]=1.44e-6; | |
327 | fSigmaY2[2]=1.444e-5; | |
328 | fSigmaY2[3]=1.444e-5; | |
329 | fSigmaY2[4]=4.0e-6; | |
330 | fSigmaY2[5]=4.0e-6; | |
331 | // z: 120 120 28 28 830 830 micron | |
332 | fSigmaZ2[0]=1.44e-4; | |
333 | fSigmaZ2[1]=1.44e-4; | |
334 | fSigmaZ2[2]=7.84e-6; | |
335 | fSigmaZ2[3]=7.84e-6; | |
336 | fSigmaZ2[4]=6.889e-3; | |
337 | fSigmaZ2[5]=6.889e-3; | |
338 | ||
339 | return; | |
340 | } | |
341 |