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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 | |
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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 |
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62 | |
63 | //_____________________________________________________________________________ |
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64 | AliITSRecoParam::AliITSRecoParam() : AliDetectorRecoParam(), |
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65 | fMaxSnp(1.), |
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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), |
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92 | fAddVirtualClustersInDeadZone(kFALSE), |
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93 | fZWindowDeadZone(0), |
94 | fSigmaXDeadZoneHit2(0), |
95 | fSigmaZDeadZoneHit2(0), |
96 | fXPassDeadZoneHits(0), |
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97 | fUseTGeoInTracker(3), |
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98 | fAllowSharedClusters(kTRUE), |
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99 | fClusterErrorsParam(1), |
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100 | fComputePlaneEff(kFALSE), |
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101 | fHistoPlaneEff(kFALSE), |
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102 | fExtendedEtaAcceptance(kFALSE), |
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103 | fUseDeadZonesFromOCDB(kFALSE), |
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104 | fAllowProlongationWithEmptyRoad(kFALSE), |
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105 | fFactorSAWindowSizes(1.), |
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106 | fSAOnePointTracks(kFALSE), |
107 | fSAUseAllClusters(kFALSE), |
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108 | fFindV0s(kTRUE), |
109 | fUseUnfoldingInClusterFinderSPD(kFALSE), |
110 | fUseUnfoldingInClusterFinderSDD(kTRUE), |
111 | fUseUnfoldingInClusterFinderSSD(kTRUE) |
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112 | { |
113 | // |
114 | // constructor |
115 | // |
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116 | SetName("ITS"); |
117 | SetTitle("ITS"); |
118 | |
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119 | SetLayersParameters(); |
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120 | for(Int_t i=0; i<AliITSgeomTGeo::kNLayers; i++) fLayersToSkip[i]=0; |
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121 | SetUseTGeoInTracker(3); |
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122 | SetAllowSharedClusters(kTRUE); |
123 | SetFindV0s(kTRUE); |
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124 | SetAddVirtualClustersInDeadZone(kFALSE); |
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125 | SetUseAmplitudeInfo(kTRUE); |
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126 | SetClusterErrorsParam(1); |
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127 | } |
128 | //_____________________________________________________________________________ |
129 | AliITSRecoParam::~AliITSRecoParam() |
130 | { |
131 | // |
132 | // destructor |
133 | // |
134 | } |
135 | //_____________________________________________________________________________ |
136 | AliITSRecoParam *AliITSRecoParam::GetHighFluxParam() |
137 | { |
138 | // |
139 | // make default reconstruction parameters for hig flux env. |
140 | // |
141 | AliITSRecoParam *param = new AliITSRecoParam(); |
142 | |
143 | param->fMaxSnp = 0.95; |
144 | |
145 | param->fNSigmaYLayerForRoadY = 4.; |
146 | param->fNSigmaRoadY = 7.5; |
147 | param->fNSigmaZLayerForRoadZ = 4.; |
148 | param->fNSigmaRoadZ = 7.5; |
149 | |
150 | param->fNSigma2RoadZC = 60.; //7.75^2 |
151 | param->fNSigma2RoadYC = 60.; //7.75^2 |
152 | param->fNSigma2RoadZNonC = 50.; //7.07^2 |
153 | param->fNSigma2RoadYNonC = 50.; //7.07^2 |
154 | |
155 | param->fMaxChi2PerCluster[0] = 11.; //7 |
156 | param->fMaxChi2PerCluster[1] = 12.; //5 |
157 | param->fMaxChi2PerCluster[2] = 12.; //8 |
158 | param->fMaxChi2PerCluster[3] = 5.; //8 |
159 | param->fMaxChi2PerCluster[4] = 12.; //6.5 |
160 | |
161 | param->fMaxNormChi2NonC[0] = 7.; |
162 | param->fMaxNormChi2NonC[1] = 8.; |
163 | param->fMaxNormChi2NonC[2] = 8.; |
164 | param->fMaxNormChi2NonC[3] = 11.; |
165 | param->fMaxNormChi2NonC[4] = 14.; |
166 | param->fMaxNormChi2NonC[5] = 25.; |
167 | |
168 | param->fMaxNormChi2C[0] = 11.; |
169 | param->fMaxNormChi2C[1] = 13.; |
170 | param->fMaxNormChi2C[2] = 15.; |
171 | param->fMaxNormChi2C[3] = 18.; |
172 | param->fMaxNormChi2C[4] = 30.; |
173 | param->fMaxNormChi2C[5] = 35.; |
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174 | |
175 | param->fMaxNormChi2NonCForHypothesis = 7.; |
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176 | |
177 | param->fMaxChi2 = 35.; |
178 | |
179 | param->fMaxChi2s[0] = 25.; //40 |
180 | param->fMaxChi2s[1] = 25.; //40 |
181 | param->fMaxChi2s[2] = 25.; //40 |
182 | param->fMaxChi2s[3] = 25.; //40 |
183 | param->fMaxChi2s[4] = 40.; //40 |
184 | param->fMaxChi2s[5] = 50.; //40 |
185 | |
186 | param->fMaxRoad = 6.; |
187 | |
188 | // not used |
189 | param->fMaxChi2In = 16.; |
190 | |
191 | param->fMaxChi2sR[0] = 10.; |
192 | param->fMaxChi2sR[1] = 10.; |
193 | param->fMaxChi2sR[2] = 10.; |
194 | param->fMaxChi2sR[3] = 10.; |
195 | param->fMaxChi2sR[4] = 30.; |
196 | param->fMaxChi2sR[5] = 40.; |
197 | |
198 | param->fChi2PerCluster = 9.; |
199 | // not used |
200 | |
201 | param->fXV = 0.; |
202 | param->fYV = 0.; |
203 | param->fZV = 0.; |
204 | param->fSigmaXV = 0.0050; |
205 | param->fSigmaYV = 0.0050; |
206 | param->fSigmaZV = 0.0100; |
207 | |
208 | param->fVertexCut = 25.; |
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209 | |
210 | param->fMaxDZforPrimTrk = 0.4; |
211 | param->fMaxDZToUseConstraint = 3.; |
212 | |
213 | param->fMaxDforV0dghtrForProlongation = 30.; |
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214 | param->fMaxDForProlongation = 40.;//10.; |
215 | param->fMaxDZForProlongation = 60.;//20.; |
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216 | param->fMinPtForProlongation = 0.120; |
217 | |
218 | param->fZWindowDeadZone = 2.0; |
219 | param->fSigmaXDeadZoneHit2 = 0.004/12.; |
220 | param->fSigmaZDeadZoneHit2 = 0.001/12.; |
221 | param->fXPassDeadZoneHits = 0.018; |
222 | |
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223 | |
224 | return param; |
225 | } |
226 | //_____________________________________________________________________________ |
227 | AliITSRecoParam *AliITSRecoParam::GetLowFluxParam() |
228 | { |
229 | // |
230 | // make default reconstruction parameters for low flux env. |
231 | // |
232 | return GetHighFluxParam(); |
233 | } |
234 | //_____________________________________________________________________________ |
235 | AliITSRecoParam *AliITSRecoParam::GetCosmicTestParam() |
236 | { |
237 | // |
238 | // make default reconstruction parameters for cosmics |
239 | // |
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240 | AliITSRecoParam *param = new AliITSRecoParam(); |
241 | |
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242 | // larger seach windows for SA (in case of large misalignments) |
243 | param->SetFactorSAWindowSizes(3.); |
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244 | |
245 | param->fMaxSnp = 0.95; |
246 | |
247 | param->fNSigmaYLayerForRoadY = 4.; |
248 | param->fNSigmaRoadY = 7.5; |
249 | param->fNSigmaZLayerForRoadZ = 4.; |
250 | param->fNSigmaRoadZ = 7.5; |
251 | |
252 | param->fNSigma2RoadZC = 60.; //7.75^2 |
253 | param->fNSigma2RoadYC = 60.; //7.75^2 |
254 | param->fNSigma2RoadZNonC = 50.; //7.07^2 |
255 | param->fNSigma2RoadYNonC = 50.; //7.07^2 |
256 | |
257 | param->fMaxChi2PerCluster[0] = 11.; //7 |
258 | param->fMaxChi2PerCluster[1] = 12.; //5 |
259 | param->fMaxChi2PerCluster[2] = 12.; //8 |
260 | param->fMaxChi2PerCluster[3] = 5.; //8 |
261 | param->fMaxChi2PerCluster[4] = 12.; //6.5 |
262 | |
263 | param->fMaxNormChi2NonC[0] = 7.; |
264 | param->fMaxNormChi2NonC[1] = 8.; |
265 | param->fMaxNormChi2NonC[2] = 8.; |
266 | param->fMaxNormChi2NonC[3] = 11.; |
267 | param->fMaxNormChi2NonC[4] = 14.; |
268 | param->fMaxNormChi2NonC[5] = 25.; |
269 | |
270 | param->fMaxNormChi2C[0] = 11.; |
271 | param->fMaxNormChi2C[1] = 13.; |
272 | param->fMaxNormChi2C[2] = 15.; |
273 | param->fMaxNormChi2C[3] = 18.; |
274 | param->fMaxNormChi2C[4] = 30.; |
275 | param->fMaxNormChi2C[5] = 35.; |
276 | |
277 | param->fMaxNormChi2NonCForHypothesis = 7.; |
278 | |
279 | param->fMaxChi2 = 35.; |
280 | |
281 | param->fMaxChi2s[0] = 25.; //40 |
282 | param->fMaxChi2s[1] = 25.; //40 |
283 | param->fMaxChi2s[2] = 25.; //40 |
284 | param->fMaxChi2s[3] = 25.; //40 |
285 | param->fMaxChi2s[4] = 40.; //40 |
286 | param->fMaxChi2s[5] = 50.; //40 |
287 | |
288 | param->fMaxRoad = 6.; |
289 | |
290 | // not used |
291 | param->fMaxChi2In = 16.; |
292 | |
293 | param->fMaxChi2sR[0] = 10.; |
294 | param->fMaxChi2sR[1] = 10.; |
295 | param->fMaxChi2sR[2] = 10.; |
296 | param->fMaxChi2sR[3] = 10.; |
297 | param->fMaxChi2sR[4] = 30.; |
298 | param->fMaxChi2sR[5] = 40.; |
299 | |
300 | param->fChi2PerCluster = 9.; |
301 | // not used |
302 | |
303 | param->fXV = 0.; |
304 | param->fYV = 0.; |
305 | param->fZV = 0.; |
306 | param->fSigmaXV = 0.0050; |
307 | param->fSigmaYV = 0.0050; |
308 | param->fSigmaZV = 0.0100; |
309 | |
310 | param->fVertexCut = 25.; |
311 | |
312 | param->fMaxDZforPrimTrk = 0.4; |
313 | param->fMaxDZToUseConstraint = 3.; |
314 | |
315 | param->fMaxDforV0dghtrForProlongation = 30.; |
316 | param->fMaxDForProlongation = 10.; |
317 | param->fMaxDZForProlongation = 20.; |
318 | param->fMinPtForProlongation = 0.120; |
319 | |
320 | param->fZWindowDeadZone = 2.0; |
321 | param->fSigmaXDeadZoneHit2 = 0.004/12.; |
322 | param->fSigmaZDeadZoneHit2 = 0.001/12.; |
323 | param->fXPassDeadZoneHits = 0.018; |
324 | |
325 | |
326 | return param; |
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327 | } |
328 | //_____________________________________________________________________________ |
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329 | AliITSRecoParam *AliITSRecoParam::GetPlaneEffParam(Int_t i) |
330 | { |
331 | // |
332 | // make special reconstruction parameters for Plane Efficiency study on layer i |
333 | // |
334 | AliITSRecoParam *param; |
335 | param = GetHighFluxParam(); |
336 | param->SetComputePlaneEff(); |
337 | param->SetLayerToSkip(i); |
338 | return param; |
339 | } |
340 | //_____________________________________________________________________________ |
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341 | void AliITSRecoParam::SetLayersParameters() |
342 | { |
343 | // |
344 | // number of layers and layers spatial resolutions |
345 | // |
346 | |
347 | // spatial resolutions of the detectors |
348 | // y: 12 12 38 38 20 20 micron |
349 | fSigmaY2[0]=1.44e-6; |
350 | fSigmaY2[1]=1.44e-6; |
351 | fSigmaY2[2]=1.444e-5; |
352 | fSigmaY2[3]=1.444e-5; |
353 | fSigmaY2[4]=4.0e-6; |
354 | fSigmaY2[5]=4.0e-6; |
355 | // z: 120 120 28 28 830 830 micron |
356 | fSigmaZ2[0]=1.44e-4; |
357 | fSigmaZ2[1]=1.44e-4; |
358 | fSigmaZ2[2]=7.84e-6; |
359 | fSigmaZ2[3]=7.84e-6; |
360 | fSigmaZ2[4]=6.889e-3; |
361 | fSigmaZ2[5]=6.889e-3; |
362 | |
363 | return; |
364 | } |
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365 | |