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ae982df3 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, 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 | **************************************************************************/ | |
ae982df3 | 15 | //----------------------------------------------------------------- |
16 | // Implementation of the ESD track class | |
4427806c | 17 | // ESD = Event Summary Data |
15614b8b | 18 | // This is the class to deal with during the phisics analysis of data |
4427806c | 19 | // Origin: Iouri Belikov, CERN |
20 | // e-mail: Jouri.Belikov@cern.ch | |
ae982df3 | 21 | //----------------------------------------------------------------- |
22 | ||
e1e6896f | 23 | #include <TMath.h> |
49edfa08 | 24 | #include <TParticle.h> |
ae982df3 | 25 | |
49d13e89 | 26 | #include "AliESDVertex.h" |
ae982df3 | 27 | #include "AliESDtrack.h" |
28 | #include "AliKalmanTrack.h" | |
5f7789fc | 29 | #include "AliLog.h" |
15e85efa | 30 | #include "AliTrackPointArray.h" |
ae982df3 | 31 | |
32 | ClassImp(AliESDtrack) | |
33 | ||
d27bbc79 | 34 | void SetPIDValues(Float_t * dest, const Double_t * src, Int_t n) { |
35 | // This function copies "n" PID weights from "scr" to "dest" | |
36 | // and normalizes their sum to 1 thus producing conditional probabilities. | |
37 | // The negative weights are set to 0. | |
38 | // In case all the weights are non-positive they are replaced by | |
39 | // uniform probabilities | |
40 | ||
41 | if (n<=0) return; | |
42 | ||
43 | Float_t uniform = 1./(Float_t)n; | |
44 | ||
45 | Float_t sum = 0; | |
46 | for (Int_t i=0; i<n; i++) | |
47 | if (src[i]>=0) { | |
48 | sum+=src[i]; | |
49 | dest[i] = src[i]; | |
50 | } | |
51 | else { | |
52 | dest[i] = 0; | |
53 | } | |
54 | ||
55 | if(sum>0) | |
56 | for (Int_t i=0; i<n; i++) dest[i] /= sum; | |
57 | else | |
58 | for (Int_t i=0; i<n; i++) dest[i] = uniform; | |
59 | } | |
60 | ||
ae982df3 | 61 | //_______________________________________________________________________ |
62 | AliESDtrack::AliESDtrack() : | |
c9ec41e8 | 63 | AliExternalTrackParam(), |
90e48c0c | 64 | fFlags(0), |
65 | fLabel(0), | |
66 | fID(0), | |
67 | fTrackLength(0), | |
49d13e89 | 68 | fD(0),fZ(0), |
69 | fCdd(0),fCdz(0),fCzz(0), | |
90e48c0c | 70 | fStopVertex(0), |
c9ec41e8 | 71 | fCp(0), |
90e48c0c | 72 | fCchi2(1e10), |
c9ec41e8 | 73 | fIp(0), |
74 | fOp(0), | |
90e48c0c | 75 | fITSchi2(0), |
76 | fITSncls(0), | |
62665e7f | 77 | fITSClusterMap(0), |
90e48c0c | 78 | fITSsignal(0), |
79 | fITSLabel(0), | |
90e48c0c | 80 | fTPCchi2(0), |
81 | fTPCncls(0), | |
e1d4c1b5 | 82 | fTPCnclsF(0), |
90e48c0c | 83 | fTPCClusterMap(159),//number of padrows |
eb7f6854 | 84 | fTPCSharedMap(159),//number of padrows |
90e48c0c | 85 | fTPCsignal(0), |
e1d4c1b5 | 86 | fTPCsignalN(0), |
87 | fTPCsignalS(0), | |
90e48c0c | 88 | fTPCLabel(0), |
89 | fTRDchi2(0), | |
90 | fTRDncls(0), | |
91 | fTRDncls0(0), | |
92 | fTRDsignal(0), | |
93 | fTRDLabel(0), | |
94 | fTRDQuality(0), | |
23d49657 | 95 | fTRDBudget(0), |
90e48c0c | 96 | fTOFchi2(0), |
97 | fTOFindex(0), | |
85324138 | 98 | fTOFCalChannel(-1), |
90e48c0c | 99 | fTOFsignal(-1), |
85324138 | 100 | fTOFsignalToT(0), |
d321691a | 101 | fTOFsignalRaw(0), |
102 | fTOFsignalDz(0), | |
f4b3bbb7 | 103 | fHMPIDchi2(1e10), |
104 | fHMPIDqn(-1), | |
105 | fHMPIDcluIdx(-1), | |
106 | fHMPIDsignal(-1), | |
107 | fHMPIDtrkTheta(-1), | |
108 | fHMPIDtrkPhi(-1), | |
109 | fHMPIDtrkX(-1), | |
110 | fHMPIDtrkY(-1), | |
111 | fHMPIDmipX(-1), | |
112 | fHMPIDmipY(-1), | |
2e1dcd14 | 113 | fEMCALindex(kEMCALNoMatch), |
15e85efa | 114 | fFriendTrack(new AliESDfriendTrack()) |
ae982df3 | 115 | { |
116 | // | |
117 | // The default ESD constructor | |
118 | // | |
6d45eaef | 119 | Int_t i, j; |
6238d7a9 | 120 | for (i=0; i<AliPID::kSPECIES; i++) { |
4a78b8c5 | 121 | fTrackTime[i]=0.; |
122 | fR[i]=1.; | |
123 | fITSr[i]=1.; | |
124 | fTPCr[i]=1.; | |
125 | fTRDr[i]=1.; | |
126 | fTOFr[i]=1.; | |
f4b3bbb7 | 127 | fHMPIDr[i]=1.; |
2bad268c | 128 | } |
ac2f7574 | 129 | |
ef7253ac | 130 | for (i=0; i<3; i++) { fKinkIndexes[i]=0;} |
131 | for (i=0; i<3; i++) { fV0Indexes[i]=-1;} | |
6d45eaef | 132 | for (i=0;i<kNPlane;i++) { |
133 | for (j=0;j<kNSlice;j++) { | |
134 | fTRDsignals[i][j]=0.; | |
135 | } | |
136 | fTRDTimBin[i]=-1; | |
137 | } | |
c9ec41e8 | 138 | for (i=0;i<4;i++) {fTPCPoints[i]=-1;} |
139 | for (i=0;i<3;i++) {fTOFLabel[i]=-1;} | |
140 | for (i=0;i<10;i++) {fTOFInfo[i]=-1;} | |
c4d11b15 | 141 | } |
142 | ||
143 | //_______________________________________________________________________ | |
90e48c0c | 144 | AliESDtrack::AliESDtrack(const AliESDtrack& track): |
c9ec41e8 | 145 | AliExternalTrackParam(track), |
90e48c0c | 146 | fFlags(track.fFlags), |
147 | fLabel(track.fLabel), | |
148 | fID(track.fID), | |
149 | fTrackLength(track.fTrackLength), | |
49d13e89 | 150 | fD(track.fD),fZ(track.fZ), |
151 | fCdd(track.fCdd),fCdz(track.fCdz),fCzz(track.fCzz), | |
90e48c0c | 152 | fStopVertex(track.fStopVertex), |
c9ec41e8 | 153 | fCp(0), |
90e48c0c | 154 | fCchi2(track.fCchi2), |
c9ec41e8 | 155 | fIp(0), |
156 | fOp(0), | |
90e48c0c | 157 | fITSchi2(track.fITSchi2), |
158 | fITSncls(track.fITSncls), | |
62665e7f | 159 | fITSClusterMap(track.fITSClusterMap), |
90e48c0c | 160 | fITSsignal(track.fITSsignal), |
161 | fITSLabel(track.fITSLabel), | |
90e48c0c | 162 | fTPCchi2(track.fTPCchi2), |
163 | fTPCncls(track.fTPCncls), | |
e1d4c1b5 | 164 | fTPCnclsF(track.fTPCnclsF), |
90e48c0c | 165 | fTPCClusterMap(track.fTPCClusterMap), |
eb7f6854 | 166 | fTPCSharedMap(track.fTPCSharedMap), |
90e48c0c | 167 | fTPCsignal(track.fTPCsignal), |
e1d4c1b5 | 168 | fTPCsignalN(track.fTPCsignalN), |
169 | fTPCsignalS(track.fTPCsignalS), | |
90e48c0c | 170 | fTPCLabel(track.fTPCLabel), |
171 | fTRDchi2(track.fTRDchi2), | |
172 | fTRDncls(track.fTRDncls), | |
173 | fTRDncls0(track.fTRDncls0), | |
174 | fTRDsignal(track.fTRDsignal), | |
175 | fTRDLabel(track.fTRDLabel), | |
176 | fTRDQuality(track.fTRDQuality), | |
23d49657 | 177 | fTRDBudget(track.fTRDBudget), |
90e48c0c | 178 | fTOFchi2(track.fTOFchi2), |
179 | fTOFindex(track.fTOFindex), | |
85324138 | 180 | fTOFCalChannel(track.fTOFCalChannel), |
90e48c0c | 181 | fTOFsignal(track.fTOFsignal), |
85324138 | 182 | fTOFsignalToT(track.fTOFsignalToT), |
d321691a | 183 | fTOFsignalRaw(track.fTOFsignalRaw), |
184 | fTOFsignalDz(track.fTOFsignalDz), | |
f4b3bbb7 | 185 | fHMPIDchi2(track.fHMPIDchi2), |
186 | fHMPIDqn(track.fHMPIDqn), | |
187 | fHMPIDcluIdx(track.fHMPIDcluIdx), | |
188 | fHMPIDsignal(track.fHMPIDsignal), | |
189 | fHMPIDtrkTheta(track.fHMPIDtrkTheta), | |
190 | fHMPIDtrkPhi(track.fHMPIDtrkPhi), | |
191 | fHMPIDtrkX(track.fHMPIDtrkX), | |
192 | fHMPIDtrkY(track.fHMPIDtrkY), | |
193 | fHMPIDmipX(track.fHMPIDmipX), | |
194 | fHMPIDmipY(track.fHMPIDmipY), | |
2e1dcd14 | 195 | fEMCALindex(track.fEMCALindex), |
8497bca0 | 196 | fFriendTrack(0) |
90e48c0c | 197 | { |
c4d11b15 | 198 | // |
199 | //copy constructor | |
200 | // | |
ef7253ac | 201 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i]=track.fTrackTime[i]; |
202 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fR[i]=track.fR[i]; | |
c4d11b15 | 203 | // |
304864ab | 204 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=track.fITSr[i]; |
c4d11b15 | 205 | // |
304864ab | 206 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=track.fTPCr[i]; |
51ad6848 | 207 | for (Int_t i=0;i<4;i++) {fTPCPoints[i]=track.fTPCPoints[i];} |
208 | for (Int_t i=0; i<3;i++) { fKinkIndexes[i]=track.fKinkIndexes[i];} | |
209 | for (Int_t i=0; i<3;i++) { fV0Indexes[i]=track.fV0Indexes[i];} | |
c4d11b15 | 210 | // |
eab5961e | 211 | for (Int_t i=0;i<kNPlane;i++) { |
6d45eaef | 212 | for (Int_t j=0;j<kNSlice;j++) { |
213 | fTRDsignals[i][j]=track.fTRDsignals[i][j]; | |
214 | } | |
215 | fTRDTimBin[i]=track.fTRDTimBin[i]; | |
eab5961e | 216 | } |
304864ab | 217 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i]=track.fTRDr[i]; |
304864ab | 218 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i]=track.fTOFr[i]; |
51ad6848 | 219 | for (Int_t i=0;i<3;i++) fTOFLabel[i]=track.fTOFLabel[i]; |
220 | for (Int_t i=0;i<10;i++) fTOFInfo[i]=track.fTOFInfo[i]; | |
f4b3bbb7 | 221 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fHMPIDr[i]=track.fHMPIDr[i]; |
c9ec41e8 | 222 | |
223 | if (track.fCp) fCp=new AliExternalTrackParam(*track.fCp); | |
224 | if (track.fIp) fIp=new AliExternalTrackParam(*track.fIp); | |
225 | if (track.fOp) fOp=new AliExternalTrackParam(*track.fOp); | |
15e85efa | 226 | |
8497bca0 | 227 | if (track.fFriendTrack) fFriendTrack=new AliESDfriendTrack(*(track.fFriendTrack)); |
ae982df3 | 228 | } |
15e85efa | 229 | |
49edfa08 | 230 | //_______________________________________________________________________ |
231 | AliESDtrack::AliESDtrack(TParticle * part) : | |
232 | AliExternalTrackParam(), | |
233 | fFlags(0), | |
234 | fLabel(0), | |
235 | fID(0), | |
236 | fTrackLength(0), | |
237 | fD(0),fZ(0), | |
238 | fCdd(0),fCdz(0),fCzz(0), | |
239 | fStopVertex(0), | |
240 | fCp(0), | |
241 | fCchi2(1e10), | |
242 | fIp(0), | |
243 | fOp(0), | |
244 | fITSchi2(0), | |
245 | fITSncls(0), | |
62665e7f | 246 | fITSClusterMap(0), |
49edfa08 | 247 | fITSsignal(0), |
248 | fITSLabel(0), | |
249 | fTPCchi2(0), | |
250 | fTPCncls(0), | |
251 | fTPCnclsF(0), | |
252 | fTPCClusterMap(159),//number of padrows | |
eb7f6854 | 253 | fTPCSharedMap(159),//number of padrows |
49edfa08 | 254 | fTPCsignal(0), |
255 | fTPCsignalN(0), | |
256 | fTPCsignalS(0), | |
257 | fTPCLabel(0), | |
258 | fTRDchi2(0), | |
259 | fTRDncls(0), | |
260 | fTRDncls0(0), | |
261 | fTRDsignal(0), | |
262 | fTRDLabel(0), | |
263 | fTRDQuality(0), | |
264 | fTRDBudget(0), | |
265 | fTOFchi2(0), | |
266 | fTOFindex(0), | |
267 | fTOFCalChannel(-1), | |
268 | fTOFsignal(-1), | |
269 | fTOFsignalToT(0), | |
d321691a | 270 | fTOFsignalRaw(0), |
271 | fTOFsignalDz(0), | |
f4b3bbb7 | 272 | fHMPIDchi2(1e10), |
273 | fHMPIDqn(-1), | |
274 | fHMPIDcluIdx(-1), | |
275 | fHMPIDsignal(-1), | |
276 | fHMPIDtrkTheta(-1), | |
277 | fHMPIDtrkPhi(-1), | |
278 | fHMPIDtrkX(-1), | |
279 | fHMPIDtrkY(-1), | |
280 | fHMPIDmipX(-1), | |
281 | fHMPIDmipY(-1), | |
49edfa08 | 282 | fEMCALindex(kEMCALNoMatch), |
283 | fFriendTrack(0) | |
284 | { | |
285 | // | |
286 | // ESD track from TParticle | |
287 | // | |
288 | ||
289 | // Reset all the arrays | |
290 | Int_t i, j; | |
291 | for (i=0; i<AliPID::kSPECIES; i++) { | |
292 | fTrackTime[i]=0.; | |
293 | fR[i]=0.; | |
294 | fITSr[i]=0.; | |
295 | fTPCr[i]=0.; | |
296 | fTRDr[i]=0.; | |
297 | fTOFr[i]=0.; | |
f4b3bbb7 | 298 | fHMPIDr[i]=0.; |
49edfa08 | 299 | } |
300 | ||
301 | for (i=0; i<3; i++) { fKinkIndexes[i]=0;} | |
302 | for (i=0; i<3; i++) { fV0Indexes[i]=-1;} | |
303 | for (i=0;i<kNPlane;i++) { | |
304 | for (j=0;j<kNSlice;j++) { | |
305 | fTRDsignals[i][j]=0.; | |
306 | } | |
307 | fTRDTimBin[i]=-1; | |
308 | } | |
309 | for (i=0;i<4;i++) {fTPCPoints[i]=-1;} | |
310 | for (i=0;i<3;i++) {fTOFLabel[i]=-1;} | |
311 | for (i=0;i<10;i++) {fTOFInfo[i]=-1;} | |
312 | ||
313 | // Calculate the AliExternalTrackParam content | |
314 | ||
315 | Double_t xref; | |
316 | Double_t alpha; | |
317 | Double_t param[5]; | |
318 | Double_t covar[15]; | |
319 | ||
320 | // Calculate alpha: the rotation angle of the corresponding local system (TPC sector) | |
321 | alpha = part->Phi()*180./TMath::Pi(); | |
322 | if (alpha<0) alpha+= 360.; | |
323 | if (alpha>360) alpha -= 360.; | |
324 | ||
325 | Int_t sector = (Int_t)(alpha/20.); | |
326 | alpha = 10. + 20.*sector; | |
327 | alpha /= 180; | |
328 | alpha *= TMath::Pi(); | |
329 | ||
330 | // Covariance matrix: no errors, the parameters are exact | |
6c27b212 | 331 | for (i=0; i<15; i++) covar[i]=0.; |
49edfa08 | 332 | |
333 | // Get the vertex of origin and the momentum | |
334 | TVector3 ver(part->Vx(),part->Vy(),part->Vz()); | |
335 | TVector3 mom(part->Px(),part->Py(),part->Pz()); | |
336 | ||
337 | // Rotate to the local coordinate system (TPC sector) | |
338 | ver.RotateZ(-alpha); | |
339 | mom.RotateZ(-alpha); | |
340 | ||
341 | // X of the referense plane | |
342 | xref = ver.X(); | |
343 | ||
344 | Int_t pdgCode = part->GetPdgCode(); | |
345 | ||
346 | Double_t charge = | |
347 | TDatabasePDG::Instance()->GetParticle(pdgCode)->Charge(); | |
348 | ||
349 | param[0] = ver.Y(); | |
350 | param[1] = ver.Z(); | |
351 | param[2] = TMath::Sin(mom.Phi()); | |
352 | param[3] = mom.Pz()/mom.Pt(); | |
353 | param[4] = TMath::Sign(1/mom.Pt(),charge); | |
354 | ||
355 | // Set AliExternalTrackParam | |
356 | Set(xref, alpha, param, covar); | |
357 | ||
358 | // Set the PID | |
359 | Int_t indexPID = 99; | |
360 | ||
361 | switch (TMath::Abs(pdgCode)) { | |
362 | ||
363 | case 11: // electron | |
364 | indexPID = 0; | |
365 | break; | |
366 | ||
367 | case 13: // muon | |
368 | indexPID = 1; | |
369 | break; | |
370 | ||
371 | case 211: // pion | |
372 | indexPID = 2; | |
373 | break; | |
374 | ||
375 | case 321: // kaon | |
376 | indexPID = 3; | |
377 | break; | |
378 | ||
379 | case 2212: // proton | |
380 | indexPID = 4; | |
381 | break; | |
382 | ||
383 | default: | |
384 | break; | |
385 | } | |
386 | ||
387 | // If the particle is not e,mu,pi,K or p the PID probabilities are set to 0 | |
388 | if (indexPID < AliPID::kSPECIES) { | |
389 | fR[indexPID]=1.; | |
390 | fITSr[indexPID]=1.; | |
391 | fTPCr[indexPID]=1.; | |
392 | fTRDr[indexPID]=1.; | |
393 | fTOFr[indexPID]=1.; | |
f4b3bbb7 | 394 | fHMPIDr[indexPID]=1.; |
49edfa08 | 395 | |
396 | } | |
397 | // AliESD track label | |
398 | SetLabel(part->GetUniqueID()); | |
399 | ||
400 | } | |
401 | ||
c4d11b15 | 402 | //_______________________________________________________________________ |
403 | AliESDtrack::~AliESDtrack(){ | |
404 | // | |
405 | // This is destructor according Coding Conventrions | |
406 | // | |
407 | //printf("Delete track\n"); | |
c9ec41e8 | 408 | delete fIp; |
409 | delete fOp; | |
410 | delete fCp; | |
15e85efa | 411 | delete fFriendTrack; |
c4d11b15 | 412 | } |
ae982df3 | 413 | |
00dce61a | 414 | void AliESDtrack::AddCalibObject(TObject * object){ |
415 | // | |
416 | // add calib object to the list | |
417 | // | |
418 | if (!fFriendTrack) fFriendTrack = new AliESDfriendTrack; | |
419 | fFriendTrack->AddCalibObject(object); | |
420 | } | |
421 | ||
422 | TObject * AliESDtrack::GetCalibObject(Int_t index){ | |
423 | // | |
424 | // return calib objct at given position | |
425 | // | |
426 | if (!fFriendTrack) return 0; | |
427 | return fFriendTrack->GetCalibObject(index); | |
428 | } | |
429 | ||
430 | ||
9559cbc4 | 431 | //_______________________________________________________________________ |
432 | void AliESDtrack::MakeMiniESDtrack(){ | |
433 | // Resets everything except | |
434 | // fFlags: Reconstruction status flags | |
435 | // fLabel: Track label | |
436 | // fID: Unique ID of the track | |
437 | // fD: Impact parameter in XY-plane | |
438 | // fZ: Impact parameter in Z | |
439 | // fR[AliPID::kSPECIES]: combined "detector response probability" | |
8497bca0 | 440 | // Running track parameters in the base class (AliExternalTrackParam) |
9559cbc4 | 441 | |
442 | fTrackLength = 0; | |
443 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i] = 0; | |
444 | fStopVertex = 0; | |
445 | ||
446 | // Reset track parameters constrained to the primary vertex | |
c9ec41e8 | 447 | fCp = 0; |
9559cbc4 | 448 | fCchi2 = 0; |
449 | ||
450 | // Reset track parameters at the inner wall of TPC | |
c9ec41e8 | 451 | fIp = 0; |
9559cbc4 | 452 | |
453 | // Reset track parameters at the inner wall of the TRD | |
c9ec41e8 | 454 | fOp = 0; |
9559cbc4 | 455 | |
456 | // Reset ITS track related information | |
457 | fITSchi2 = 0; | |
9559cbc4 | 458 | fITSncls = 0; |
62665e7f | 459 | fITSClusterMap=0; |
9559cbc4 | 460 | fITSsignal = 0; |
ef7253ac | 461 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=0; |
9559cbc4 | 462 | fITSLabel = 0; |
9559cbc4 | 463 | |
464 | // Reset TPC related track information | |
465 | fTPCchi2 = 0; | |
466 | fTPCncls = 0; | |
e1d4c1b5 | 467 | fTPCnclsF = 0; |
9559cbc4 | 468 | fTPCClusterMap = 0; |
eb7f6854 | 469 | fTPCSharedMap = 0; |
9559cbc4 | 470 | fTPCsignal= 0; |
e1d4c1b5 | 471 | fTPCsignalS= 0; |
472 | fTPCsignalN= 0; | |
9559cbc4 | 473 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0; |
474 | fTPCLabel=0; | |
475 | for (Int_t i=0;i<4;i++) fTPCPoints[i] = 0; | |
476 | for (Int_t i=0; i<3;i++) fKinkIndexes[i] = 0; | |
477 | for (Int_t i=0; i<3;i++) fV0Indexes[i] = 0; | |
478 | ||
479 | // Reset TRD related track information | |
480 | fTRDchi2 = 0; | |
481 | fTRDncls = 0; | |
482 | fTRDncls0 = 0; | |
9559cbc4 | 483 | fTRDsignal = 0; |
484 | for (Int_t i=0;i<kNPlane;i++) { | |
6d45eaef | 485 | for (Int_t j=0;j<kNSlice;j++) { |
486 | fTRDsignals[i][j] = 0; | |
487 | } | |
488 | fTRDTimBin[i] = 0; | |
9559cbc4 | 489 | } |
490 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i] = 0; | |
491 | fTRDLabel = 0; | |
9559cbc4 | 492 | fTRDQuality = 0; |
23d49657 | 493 | fTRDBudget = 0; |
9559cbc4 | 494 | |
495 | // Reset TOF related track information | |
496 | fTOFchi2 = 0; | |
497 | fTOFindex = 0; | |
498 | fTOFsignal = 0; | |
85324138 | 499 | fTOFCalChannel = -1; |
500 | fTOFsignalToT = 0; | |
d321691a | 501 | fTOFsignalRaw = 0; |
502 | fTOFsignalDz = 0; | |
9559cbc4 | 503 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i] = 0; |
504 | for (Int_t i=0;i<3;i++) fTOFLabel[i] = 0; | |
505 | for (Int_t i=0;i<10;i++) fTOFInfo[i] = 0; | |
506 | ||
f4b3bbb7 | 507 | // Reset HMPID related track information |
508 | fHMPIDchi2 = 0; | |
509 | fHMPIDqn = -1; | |
510 | fHMPIDcluIdx = -1; | |
511 | fHMPIDsignal = 0; | |
512 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fHMPIDr[i] = 0; | |
513 | fHMPIDtrkTheta = -1; | |
514 | fHMPIDtrkPhi = -1; | |
515 | fHMPIDtrkX = -1; | |
516 | fHMPIDtrkY = -1; | |
517 | fHMPIDmipX = -1; | |
518 | fHMPIDmipY = -1; | |
2e1dcd14 | 519 | fEMCALindex = kEMCALNoMatch; |
9559cbc4 | 520 | |
15e85efa | 521 | delete fFriendTrack; fFriendTrack = 0; |
9559cbc4 | 522 | } |
ae982df3 | 523 | //_______________________________________________________________________ |
4a78b8c5 | 524 | Double_t AliESDtrack::GetMass() const { |
4427806c | 525 | // Returns the mass of the most probable particle type |
ae982df3 | 526 | Float_t max=0.; |
527 | Int_t k=-1; | |
304864ab | 528 | for (Int_t i=0; i<AliPID::kSPECIES; i++) { |
ae982df3 | 529 | if (fR[i]>max) {k=i; max=fR[i];} |
530 | } | |
db3989b3 | 531 | if (k==0) { // dE/dx "crossing points" in the TPC |
532 | Double_t p=GetP(); | |
533 | if ((p>0.38)&&(p<0.48)) | |
304864ab | 534 | if (fR[0]<fR[3]*10.) return AliPID::ParticleMass(AliPID::kKaon); |
db3989b3 | 535 | if ((p>0.75)&&(p<0.85)) |
304864ab | 536 | if (fR[0]<fR[4]*10.) return AliPID::ParticleMass(AliPID::kProton); |
db3989b3 | 537 | return 0.00051; |
538 | } | |
304864ab | 539 | if (k==1) return AliPID::ParticleMass(AliPID::kMuon); |
540 | if (k==2||k==-1) return AliPID::ParticleMass(AliPID::kPion); | |
541 | if (k==3) return AliPID::ParticleMass(AliPID::kKaon); | |
542 | if (k==4) return AliPID::ParticleMass(AliPID::kProton); | |
5f7789fc | 543 | AliWarning("Undefined mass !"); |
304864ab | 544 | return AliPID::ParticleMass(AliPID::kPion); |
ae982df3 | 545 | } |
546 | ||
547 | //_______________________________________________________________________ | |
c9ec41e8 | 548 | Bool_t AliESDtrack::UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags){ |
ae982df3 | 549 | // |
550 | // This function updates track's running parameters | |
551 | // | |
15e85efa | 552 | Int_t *index=0; |
15614b8b | 553 | Bool_t rc=kTRUE; |
554 | ||
9b859005 | 555 | SetStatus(flags); |
556 | fLabel=t->GetLabel(); | |
557 | ||
558 | if (t->IsStartedTimeIntegral()) { | |
559 | SetStatus(kTIME); | |
560 | Double_t times[10];t->GetIntegratedTimes(times); SetIntegratedTimes(times); | |
561 | SetIntegratedLength(t->GetIntegratedLength()); | |
562 | } | |
563 | ||
6c94f330 | 564 | Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); |
e1d4c1b5 | 565 | |
ae982df3 | 566 | switch (flags) { |
ad2f1f2b | 567 | |
9b859005 | 568 | case kITSin: case kITSout: case kITSrefit: |
ae982df3 | 569 | fITSncls=t->GetNumberOfClusters(); |
62665e7f | 570 | index=fFriendTrack->GetITSindices(); |
571 | for (Int_t i=0;i<AliESDfriendTrack::kMaxITScluster;i++) { | |
572 | index[i]=t->GetClusterIndex(i); | |
573 | if (i<fITSncls) { | |
574 | Int_t l=(index[i] & 0xf0000000) >> 28; | |
575 | SETBIT(fITSClusterMap,l); | |
576 | } | |
577 | } | |
ae982df3 | 578 | fITSchi2=t->GetChi2(); |
ae982df3 | 579 | fITSsignal=t->GetPIDsignal(); |
6e5b1b04 | 580 | fITSLabel = t->GetLabel(); |
ae982df3 | 581 | break; |
ad2f1f2b | 582 | |
9b859005 | 583 | case kTPCin: case kTPCrefit: |
6e5b1b04 | 584 | fTPCLabel = t->GetLabel(); |
c9ec41e8 | 585 | if (!fIp) fIp=new AliExternalTrackParam(*t); |
6c94f330 | 586 | else |
587 | fIp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
9b859005 | 588 | case kTPCout: |
15e85efa | 589 | index=fFriendTrack->GetTPCindices(); |
1d303a24 | 590 | if (flags & kTPCout){ |
591 | if (!fOp) fOp=new AliExternalTrackParam(*t); | |
6c94f330 | 592 | else |
593 | fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
1d303a24 | 594 | } |
e1d4c1b5 | 595 | fTPCncls=t->GetNumberOfClusters(); |
ae982df3 | 596 | fTPCchi2=t->GetChi2(); |
a866ac60 | 597 | |
598 | {//prevrow must be declared in separate namespace, otherwise compiler cries: | |
599 | //"jump to case label crosses initialization of `Int_t prevrow'" | |
600 | Int_t prevrow = -1; | |
6e5b1b04 | 601 | // for (Int_t i=0;i<fTPCncls;i++) |
15e85efa | 602 | for (Int_t i=0;i<AliESDfriendTrack::kMaxTPCcluster;i++) |
a866ac60 | 603 | { |
15e85efa | 604 | index[i]=t->GetClusterIndex(i); |
605 | Int_t idx = index[i]; | |
a866ac60 | 606 | |
15e85efa | 607 | if (idx<0) continue; |
9fe5b2ff | 608 | |
a866ac60 | 609 | // Piotr's Cluster Map for HBT |
610 | // ### please change accordingly if cluster array is changing | |
611 | // to "New TPC Tracking" style (with gaps in array) | |
a866ac60 | 612 | Int_t sect = (idx&0xff000000)>>24; |
613 | Int_t row = (idx&0x00ff0000)>>16; | |
614 | if (sect > 18) row +=63; //if it is outer sector, add number of inner sectors | |
615 | ||
616 | fTPCClusterMap.SetBitNumber(row,kTRUE); | |
617 | ||
618 | //Fill the gap between previous row and this row with 0 bits | |
619 | //In case ### pleas change it as well - just set bit 0 in case there | |
620 | //is no associated clusters for current "i" | |
621 | if (prevrow < 0) | |
622 | { | |
623 | prevrow = row;//if previous bit was not assigned yet == this is the first one | |
624 | } | |
625 | else | |
626 | { //we don't know the order (inner to outer or reverse) | |
627 | //just to be save in case it is going to change | |
628 | Int_t n = 0, m = 0; | |
629 | if (prevrow < row) | |
630 | { | |
631 | n = prevrow; | |
632 | m = row; | |
633 | } | |
634 | else | |
635 | { | |
636 | n = row; | |
637 | m = prevrow; | |
638 | } | |
639 | ||
640 | for (Int_t j = n+1; j < m; j++) | |
641 | { | |
642 | fTPCClusterMap.SetBitNumber(j,kFALSE); | |
643 | } | |
644 | prevrow = row; | |
645 | } | |
646 | // End Of Piotr's Cluster Map for HBT | |
647 | } | |
648 | } | |
ae982df3 | 649 | fTPCsignal=t->GetPIDsignal(); |
ae982df3 | 650 | break; |
9b859005 | 651 | |
23904d16 | 652 | case kTRDout: case kTRDin: case kTRDrefit: |
15e85efa | 653 | index=fFriendTrack->GetTRDindices(); |
51ad6848 | 654 | fTRDLabel = t->GetLabel(); |
79e94bf8 | 655 | fTRDncls=t->GetNumberOfClusters(); |
656 | fTRDchi2=t->GetChi2(); | |
15e85efa | 657 | for (Int_t i=0;i<fTRDncls;i++) index[i]=t->GetClusterIndex(i); |
79e94bf8 | 658 | fTRDsignal=t->GetPIDsignal(); |
659 | break; | |
c4d11b15 | 660 | case kTRDbackup: |
c9ec41e8 | 661 | if (!fOp) fOp=new AliExternalTrackParam(*t); |
6c94f330 | 662 | else |
663 | fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
c4d11b15 | 664 | fTRDncls0 = t->GetNumberOfClusters(); |
665 | break; | |
666 | case kTOFin: | |
667 | break; | |
668 | case kTOFout: | |
669 | break; | |
d0862fea | 670 | case kTRDStop: |
671 | break; | |
ae982df3 | 672 | default: |
5f7789fc | 673 | AliError("Wrong flag !"); |
ae982df3 | 674 | return kFALSE; |
675 | } | |
676 | ||
15614b8b | 677 | return rc; |
ae982df3 | 678 | } |
679 | ||
680 | //_______________________________________________________________________ | |
681 | void AliESDtrack::GetExternalParameters(Double_t &x, Double_t p[5]) const { | |
682 | //--------------------------------------------------------------------- | |
683 | // This function returns external representation of the track parameters | |
684 | //--------------------------------------------------------------------- | |
c9ec41e8 | 685 | x=GetX(); |
686 | for (Int_t i=0; i<5; i++) p[i]=GetParameter()[i]; | |
15614b8b | 687 | } |
688 | ||
67c3dcbe | 689 | //_______________________________________________________________________ |
a866ac60 | 690 | void AliESDtrack::GetExternalCovariance(Double_t cov[15]) const { |
67c3dcbe | 691 | //--------------------------------------------------------------------- |
692 | // This function returns external representation of the cov. matrix | |
693 | //--------------------------------------------------------------------- | |
c9ec41e8 | 694 | for (Int_t i=0; i<15; i++) cov[i]=AliExternalTrackParam::GetCovariance()[i]; |
67c3dcbe | 695 | } |
696 | ||
67c3dcbe | 697 | //_______________________________________________________________________ |
c0b978f0 | 698 | Bool_t AliESDtrack::GetConstrainedExternalParameters |
699 | (Double_t &alpha, Double_t &x, Double_t p[5]) const { | |
67c3dcbe | 700 | //--------------------------------------------------------------------- |
701 | // This function returns the constrained external track parameters | |
702 | //--------------------------------------------------------------------- | |
c0b978f0 | 703 | if (!fCp) return kFALSE; |
704 | alpha=fCp->GetAlpha(); | |
c9ec41e8 | 705 | x=fCp->GetX(); |
706 | for (Int_t i=0; i<5; i++) p[i]=fCp->GetParameter()[i]; | |
c0b978f0 | 707 | return kTRUE; |
67c3dcbe | 708 | } |
c9ec41e8 | 709 | |
67c3dcbe | 710 | //_______________________________________________________________________ |
c0b978f0 | 711 | Bool_t |
67c3dcbe | 712 | AliESDtrack::GetConstrainedExternalCovariance(Double_t c[15]) const { |
713 | //--------------------------------------------------------------------- | |
714 | // This function returns the constrained external cov. matrix | |
715 | //--------------------------------------------------------------------- | |
c0b978f0 | 716 | if (!fCp) return kFALSE; |
c9ec41e8 | 717 | for (Int_t i=0; i<15; i++) c[i]=fCp->GetCovariance()[i]; |
c0b978f0 | 718 | return kTRUE; |
67c3dcbe | 719 | } |
720 | ||
c0b978f0 | 721 | Bool_t |
722 | AliESDtrack::GetInnerExternalParameters | |
723 | (Double_t &alpha, Double_t &x, Double_t p[5]) const { | |
724 | //--------------------------------------------------------------------- | |
c9ec41e8 | 725 | // This function returns external representation of the track parameters |
726 | // at the inner layer of TPC | |
9b859005 | 727 | //--------------------------------------------------------------------- |
c0b978f0 | 728 | if (!fIp) return kFALSE; |
729 | alpha=fIp->GetAlpha(); | |
c9ec41e8 | 730 | x=fIp->GetX(); |
731 | for (Int_t i=0; i<5; i++) p[i]=fIp->GetParameter()[i]; | |
c0b978f0 | 732 | return kTRUE; |
9b859005 | 733 | } |
734 | ||
c0b978f0 | 735 | Bool_t |
736 | AliESDtrack::GetInnerExternalCovariance(Double_t cov[15]) const { | |
c9ec41e8 | 737 | //--------------------------------------------------------------------- |
738 | // This function returns external representation of the cov. matrix | |
739 | // at the inner layer of TPC | |
740 | //--------------------------------------------------------------------- | |
c0b978f0 | 741 | if (!fIp) return kFALSE; |
c9ec41e8 | 742 | for (Int_t i=0; i<15; i++) cov[i]=fIp->GetCovariance()[i]; |
c0b978f0 | 743 | return kTRUE; |
9b859005 | 744 | } |
745 | ||
c0b978f0 | 746 | Bool_t |
747 | AliESDtrack::GetOuterExternalParameters | |
748 | (Double_t &alpha, Double_t &x, Double_t p[5]) const { | |
749 | //--------------------------------------------------------------------- | |
c9ec41e8 | 750 | // This function returns external representation of the track parameters |
751 | // at the inner layer of TRD | |
a866ac60 | 752 | //--------------------------------------------------------------------- |
c0b978f0 | 753 | if (!fOp) return kFALSE; |
754 | alpha=fOp->GetAlpha(); | |
c9ec41e8 | 755 | x=fOp->GetX(); |
756 | for (Int_t i=0; i<5; i++) p[i]=fOp->GetParameter()[i]; | |
c0b978f0 | 757 | return kTRUE; |
a866ac60 | 758 | } |
c9ec41e8 | 759 | |
c0b978f0 | 760 | Bool_t |
761 | AliESDtrack::GetOuterExternalCovariance(Double_t cov[15]) const { | |
a866ac60 | 762 | //--------------------------------------------------------------------- |
c9ec41e8 | 763 | // This function returns external representation of the cov. matrix |
764 | // at the inner layer of TRD | |
a866ac60 | 765 | //--------------------------------------------------------------------- |
c0b978f0 | 766 | if (!fOp) return kFALSE; |
c9ec41e8 | 767 | for (Int_t i=0; i<15; i++) cov[i]=fOp->GetCovariance()[i]; |
c0b978f0 | 768 | return kTRUE; |
a866ac60 | 769 | } |
770 | ||
98937d93 | 771 | Int_t AliESDtrack::GetNcls(Int_t idet) const |
772 | { | |
773 | // Get number of clusters by subdetector index | |
774 | // | |
775 | Int_t ncls = 0; | |
776 | switch(idet){ | |
777 | case 0: | |
778 | ncls = fITSncls; | |
779 | break; | |
780 | case 1: | |
781 | ncls = fTPCncls; | |
782 | break; | |
783 | case 2: | |
784 | ncls = fTRDncls; | |
785 | break; | |
786 | case 3: | |
787 | if (fTOFindex != 0) | |
788 | ncls = 1; | |
789 | break; | |
790 | default: | |
791 | break; | |
792 | } | |
793 | return ncls; | |
794 | } | |
795 | ||
ef7253ac | 796 | Int_t AliESDtrack::GetClusters(Int_t idet, Int_t *idx) const |
98937d93 | 797 | { |
798 | // Get cluster index array by subdetector index | |
799 | // | |
800 | Int_t ncls = 0; | |
801 | switch(idet){ | |
802 | case 0: | |
803 | ncls = GetITSclusters(idx); | |
804 | break; | |
805 | case 1: | |
ef7253ac | 806 | ncls = GetTPCclusters(idx); |
98937d93 | 807 | break; |
808 | case 2: | |
809 | ncls = GetTRDclusters(idx); | |
810 | break; | |
811 | case 3: | |
812 | if (fTOFindex != 0) { | |
813 | idx[0] = GetTOFcluster(); | |
814 | ncls = 1; | |
815 | } | |
816 | break; | |
817 | default: | |
818 | break; | |
819 | } | |
820 | return ncls; | |
821 | } | |
822 | ||
ae982df3 | 823 | //_______________________________________________________________________ |
824 | void AliESDtrack::GetIntegratedTimes(Double_t *times) const { | |
4427806c | 825 | // Returns the array with integrated times for each particle hypothesis |
304864ab | 826 | for (Int_t i=0; i<AliPID::kSPECIES; i++) times[i]=fTrackTime[i]; |
ae982df3 | 827 | } |
828 | ||
829 | //_______________________________________________________________________ | |
830 | void AliESDtrack::SetIntegratedTimes(const Double_t *times) { | |
4427806c | 831 | // Sets the array with integrated times for each particle hypotesis |
304864ab | 832 | for (Int_t i=0; i<AliPID::kSPECIES; i++) fTrackTime[i]=times[i]; |
ae982df3 | 833 | } |
834 | ||
c630aafd | 835 | //_______________________________________________________________________ |
4427806c | 836 | void AliESDtrack::SetITSpid(const Double_t *p) { |
837 | // Sets values for the probability of each particle type (in ITS) | |
d27bbc79 | 838 | SetPIDValues(fITSr,p,AliPID::kSPECIES); |
c630aafd | 839 | SetStatus(AliESDtrack::kITSpid); |
840 | } | |
841 | ||
842 | //_______________________________________________________________________ | |
843 | void AliESDtrack::GetITSpid(Double_t *p) const { | |
4427806c | 844 | // Gets the probability of each particle type (in ITS) |
304864ab | 845 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fITSr[i]; |
c630aafd | 846 | } |
847 | ||
ae982df3 | 848 | //_______________________________________________________________________ |
ef7253ac | 849 | Int_t AliESDtrack::GetITSclusters(Int_t *idx) const { |
ae982df3 | 850 | //--------------------------------------------------------------------- |
851 | // This function returns indices of the assgined ITS clusters | |
852 | //--------------------------------------------------------------------- | |
15e85efa | 853 | if (idx!=0) { |
854 | Int_t *index=fFriendTrack->GetITSindices(); | |
855 | for (Int_t i=0; i<AliESDfriendTrack::kMaxITScluster; i++) idx[i]=index[i]; | |
856 | } | |
ae982df3 | 857 | return fITSncls; |
858 | } | |
859 | ||
860 | //_______________________________________________________________________ | |
05e445cd | 861 | Int_t AliESDtrack::GetTPCclusters(Int_t *idx) const { |
ae982df3 | 862 | //--------------------------------------------------------------------- |
863 | // This function returns indices of the assgined ITS clusters | |
864 | //--------------------------------------------------------------------- | |
15e85efa | 865 | if (idx!=0) { |
866 | Int_t *index=fFriendTrack->GetTPCindices(); | |
867 | for (Int_t i=0; i<AliESDfriendTrack::kMaxTPCcluster; i++) idx[i]=index[i]; | |
868 | } | |
ae982df3 | 869 | return fTPCncls; |
870 | } | |
8c6a71ab | 871 | |
81e97e0d | 872 | Float_t AliESDtrack::GetTPCdensity(Int_t row0, Int_t row1) const{ |
873 | // | |
874 | // GetDensity of the clusters on given region between row0 and row1 | |
875 | // Dead zone effect takin into acoount | |
876 | // | |
877 | Int_t good = 0; | |
878 | Int_t found = 0; | |
879 | // | |
15e85efa | 880 | Int_t *index=fFriendTrack->GetTPCindices(); |
81e97e0d | 881 | for (Int_t i=row0;i<=row1;i++){ |
15e85efa | 882 | Int_t idx = index[i]; |
883 | if (idx!=-1) good++; // track outside of dead zone | |
884 | if (idx>0) found++; | |
81e97e0d | 885 | } |
886 | Float_t density=0.5; | |
887 | if (good>(row1-row0)*0.5) density = Float_t(found)/Float_t(good); | |
888 | return density; | |
889 | } | |
c84a5e9e | 890 | |
8c6a71ab | 891 | //_______________________________________________________________________ |
892 | void AliESDtrack::SetTPCpid(const Double_t *p) { | |
4427806c | 893 | // Sets values for the probability of each particle type (in TPC) |
d27bbc79 | 894 | SetPIDValues(fTPCr,p,AliPID::kSPECIES); |
8c6a71ab | 895 | SetStatus(AliESDtrack::kTPCpid); |
896 | } | |
897 | ||
898 | //_______________________________________________________________________ | |
899 | void AliESDtrack::GetTPCpid(Double_t *p) const { | |
4427806c | 900 | // Gets the probability of each particle type (in TPC) |
304864ab | 901 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTPCr[i]; |
8c6a71ab | 902 | } |
903 | ||
bb2ceb1f | 904 | //_______________________________________________________________________ |
ef7253ac | 905 | Int_t AliESDtrack::GetTRDclusters(Int_t *idx) const { |
bb2ceb1f | 906 | //--------------------------------------------------------------------- |
907 | // This function returns indices of the assgined TRD clusters | |
908 | //--------------------------------------------------------------------- | |
15e85efa | 909 | if (idx!=0) { |
910 | Int_t *index=fFriendTrack->GetTRDindices(); | |
911 | for (Int_t i=0; i<AliESDfriendTrack::kMaxTRDcluster; i++) idx[i]=index[i]; | |
912 | } | |
bb2ceb1f | 913 | return fTRDncls; |
914 | } | |
915 | ||
c630aafd | 916 | //_______________________________________________________________________ |
917 | void AliESDtrack::SetTRDpid(const Double_t *p) { | |
4427806c | 918 | // Sets values for the probability of each particle type (in TRD) |
d27bbc79 | 919 | SetPIDValues(fTRDr,p,AliPID::kSPECIES); |
c630aafd | 920 | SetStatus(AliESDtrack::kTRDpid); |
921 | } | |
922 | ||
923 | //_______________________________________________________________________ | |
924 | void AliESDtrack::GetTRDpid(Double_t *p) const { | |
4427806c | 925 | // Gets the probability of each particle type (in TRD) |
304864ab | 926 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTRDr[i]; |
c630aafd | 927 | } |
928 | ||
79e94bf8 | 929 | //_______________________________________________________________________ |
930 | void AliESDtrack::SetTRDpid(Int_t iSpecies, Float_t p) | |
931 | { | |
4427806c | 932 | // Sets the probability of particle type iSpecies to p (in TRD) |
79e94bf8 | 933 | fTRDr[iSpecies] = p; |
934 | } | |
935 | ||
936 | Float_t AliESDtrack::GetTRDpid(Int_t iSpecies) const | |
937 | { | |
4427806c | 938 | // Returns the probability of particle type iSpecies (in TRD) |
79e94bf8 | 939 | return fTRDr[iSpecies]; |
940 | } | |
941 | ||
c630aafd | 942 | //_______________________________________________________________________ |
943 | void AliESDtrack::SetTOFpid(const Double_t *p) { | |
4427806c | 944 | // Sets the probability of each particle type (in TOF) |
d27bbc79 | 945 | SetPIDValues(fTOFr,p,AliPID::kSPECIES); |
c630aafd | 946 | SetStatus(AliESDtrack::kTOFpid); |
947 | } | |
948 | ||
51ad6848 | 949 | //_______________________________________________________________________ |
950 | void AliESDtrack::SetTOFLabel(const Int_t *p) { | |
951 | // Sets (in TOF) | |
952 | for (Int_t i=0; i<3; i++) fTOFLabel[i]=p[i]; | |
953 | } | |
954 | ||
c630aafd | 955 | //_______________________________________________________________________ |
956 | void AliESDtrack::GetTOFpid(Double_t *p) const { | |
4427806c | 957 | // Gets probabilities of each particle type (in TOF) |
304864ab | 958 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTOFr[i]; |
c630aafd | 959 | } |
960 | ||
51ad6848 | 961 | //_______________________________________________________________________ |
962 | void AliESDtrack::GetTOFLabel(Int_t *p) const { | |
963 | // Gets (in TOF) | |
964 | for (Int_t i=0; i<3; i++) p[i]=fTOFLabel[i]; | |
965 | } | |
966 | ||
967 | //_______________________________________________________________________ | |
968 | void AliESDtrack::GetTOFInfo(Float_t *info) const { | |
969 | // Gets (in TOF) | |
970 | for (Int_t i=0; i<10; i++) info[i]=fTOFInfo[i]; | |
971 | } | |
972 | ||
973 | //_______________________________________________________________________ | |
974 | void AliESDtrack::SetTOFInfo(Float_t*info) { | |
975 | // Gets (in TOF) | |
976 | for (Int_t i=0; i<10; i++) fTOFInfo[i]=info[i]; | |
977 | } | |
978 | ||
4a78b8c5 | 979 | |
980 | ||
4a78b8c5 | 981 | //_______________________________________________________________________ |
f4b3bbb7 | 982 | void AliESDtrack::SetHMPIDpid(const Double_t *p) { |
983 | // Sets the probability of each particle type (in HMPID) | |
984 | SetPIDValues(fHMPIDr,p,AliPID::kSPECIES); | |
985 | SetStatus(AliESDtrack::kHMPIDpid); | |
4a78b8c5 | 986 | } |
987 | ||
988 | //_______________________________________________________________________ | |
f4b3bbb7 | 989 | void AliESDtrack::GetHMPIDpid(Double_t *p) const { |
990 | // Gets probabilities of each particle type (in HMPID) | |
991 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fHMPIDr[i]; | |
4a78b8c5 | 992 | } |
993 | ||
994 | ||
995 | ||
8c6a71ab | 996 | //_______________________________________________________________________ |
997 | void AliESDtrack::SetESDpid(const Double_t *p) { | |
4427806c | 998 | // Sets the probability of each particle type for the ESD track |
d27bbc79 | 999 | SetPIDValues(fR,p,AliPID::kSPECIES); |
8c6a71ab | 1000 | SetStatus(AliESDtrack::kESDpid); |
1001 | } | |
1002 | ||
1003 | //_______________________________________________________________________ | |
1004 | void AliESDtrack::GetESDpid(Double_t *p) const { | |
4427806c | 1005 | // Gets probability of each particle type for the ESD track |
304864ab | 1006 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fR[i]; |
8c6a71ab | 1007 | } |
1008 | ||
49d13e89 | 1009 | //_______________________________________________________________________ |
1010 | Bool_t AliESDtrack::RelateToVertex | |
1011 | (const AliESDVertex *vtx, Double_t b, Double_t maxd) { | |
1012 | // | |
1013 | // Try to relate this track to the vertex "vtx", | |
1014 | // if the (rough) transverse impact parameter is not bigger then "maxd". | |
1015 | // Magnetic field is "b" (kG). | |
1016 | // | |
1017 | // a) The track gets extapolated to the DCA to the vertex. | |
1018 | // b) The impact parameters and their covariance matrix are calculated. | |
1019 | // c) An attempt to constrain this track to the vertex is done. | |
1020 | // | |
1021 | // In the case of success, the returned value is kTRUE | |
1022 | // (otherwise, it's kFALSE) | |
1023 | // | |
b5d34a4c | 1024 | |
1025 | if (!vtx) return kFALSE; | |
1026 | ||
49d13e89 | 1027 | Double_t alpha=GetAlpha(); |
1028 | Double_t sn=TMath::Sin(alpha), cs=TMath::Cos(alpha); | |
1029 | Double_t x=GetX(), y=GetParameter()[0], snp=GetParameter()[2]; | |
1030 | Double_t xv= vtx->GetXv()*cs + vtx->GetYv()*sn; | |
1031 | Double_t yv=-vtx->GetXv()*sn + vtx->GetYv()*cs, zv=vtx->GetZv(); | |
1032 | x-=xv; y-=yv; | |
1033 | ||
1034 | //Estimate the impact parameter neglecting the track curvature | |
1035 | Double_t d=TMath::Abs(x*snp - y*TMath::Sqrt(1.- snp*snp)); | |
1036 | if (d > maxd) return kFALSE; | |
1037 | ||
1038 | //Propagate to the DCA | |
5773defd | 1039 | Double_t crv=kB2C*b*GetParameter()[4]; |
1040 | if (TMath::Abs(b) < kAlmost0Field) crv=0.; | |
1041 | ||
49d13e89 | 1042 | Double_t tgfv=-(crv*x - snp)/(crv*y + TMath::Sqrt(1.-snp*snp)); |
f54395bf | 1043 | sn=tgfv/TMath::Sqrt(1.+ tgfv*tgfv); |
1044 | if (TMath::Abs(tgfv)>0.) cs = sn/tgfv; | |
1045 | else cs=1.; | |
49d13e89 | 1046 | |
1047 | x = xv*cs + yv*sn; | |
1048 | yv=-xv*sn + yv*cs; xv=x; | |
1049 | ||
1050 | if (!Propagate(alpha+TMath::ASin(sn),xv,b)) return kFALSE; | |
1051 | ||
1052 | fD = GetParameter()[0] - yv; | |
1053 | fZ = GetParameter()[1] - zv; | |
1054 | ||
1055 | Double_t cov[6]; vtx->GetCovMatrix(cov); | |
3231f9e5 | 1056 | |
1057 | //***** Improvements by A.Dainese | |
1058 | alpha=GetAlpha(); sn=TMath::Sin(alpha); cs=TMath::Cos(alpha); | |
1059 | Double_t s2ylocvtx = cov[0]*sn*sn + cov[2]*cs*cs - 2.*cov[1]*cs*sn; | |
1060 | fCdd = GetCovariance()[0] + s2ylocvtx; // neglecting correlations | |
b67517ef | 1061 | fCdz = GetCovariance()[1]; // between (x,y) and z |
3231f9e5 | 1062 | fCzz = GetCovariance()[2] + cov[5]; // in vertex's covariance matrix |
1063 | //***** | |
49d13e89 | 1064 | |
1065 | {//Try to constrain | |
1066 | Double_t p[2]={yv,zv}, c[3]={cov[2],0.,cov[5]}; | |
1067 | Double_t chi2=GetPredictedChi2(p,c); | |
1068 | ||
1069 | if (chi2>77.) return kFALSE; | |
1070 | ||
1071 | AliExternalTrackParam tmp(*this); | |
1072 | if (!tmp.Update(p,c)) return kFALSE; | |
1073 | ||
1074 | fCchi2=chi2; | |
1075 | if (!fCp) fCp=new AliExternalTrackParam(); | |
1076 | new (fCp) AliExternalTrackParam(tmp); | |
1077 | } | |
1078 | ||
1079 | return kTRUE; | |
1080 | } | |
1081 | ||
ac2f7574 | 1082 | //_______________________________________________________________________ |
1083 | void AliESDtrack::Print(Option_t *) const { | |
1084 | // Prints info on the track | |
1085 | ||
5f7789fc | 1086 | printf("ESD track info\n") ; |
304864ab | 1087 | Double_t p[AliPID::kSPECIESN] ; |
ac2f7574 | 1088 | Int_t index = 0 ; |
1089 | if( IsOn(kITSpid) ){ | |
1090 | printf("From ITS: ") ; | |
1091 | GetITSpid(p) ; | |
304864ab | 1092 | for(index = 0 ; index < AliPID::kSPECIES; index++) |
ac2f7574 | 1093 | printf("%f, ", p[index]) ; |
1094 | printf("\n signal = %f\n", GetITSsignal()) ; | |
1095 | } | |
1096 | if( IsOn(kTPCpid) ){ | |
1097 | printf("From TPC: ") ; | |
1098 | GetTPCpid(p) ; | |
304864ab | 1099 | for(index = 0 ; index < AliPID::kSPECIES; index++) |
ac2f7574 | 1100 | printf("%f, ", p[index]) ; |
1101 | printf("\n signal = %f\n", GetTPCsignal()) ; | |
1102 | } | |
1103 | if( IsOn(kTRDpid) ){ | |
1104 | printf("From TRD: ") ; | |
1105 | GetTRDpid(p) ; | |
304864ab | 1106 | for(index = 0 ; index < AliPID::kSPECIES; index++) |
ac2f7574 | 1107 | printf("%f, ", p[index]) ; |
1108 | printf("\n signal = %f\n", GetTRDsignal()) ; | |
1109 | } | |
1110 | if( IsOn(kTOFpid) ){ | |
1111 | printf("From TOF: ") ; | |
1112 | GetTOFpid(p) ; | |
304864ab | 1113 | for(index = 0 ; index < AliPID::kSPECIES; index++) |
ac2f7574 | 1114 | printf("%f, ", p[index]) ; |
1115 | printf("\n signal = %f\n", GetTOFsignal()) ; | |
1116 | } | |
f4b3bbb7 | 1117 | if( IsOn(kHMPIDpid) ){ |
1118 | printf("From HMPID: ") ; | |
1119 | GetHMPIDpid(p) ; | |
304864ab | 1120 | for(index = 0 ; index < AliPID::kSPECIES; index++) |
ac2f7574 | 1121 | printf("%f, ", p[index]) ; |
f4b3bbb7 | 1122 | printf("\n signal = %f\n", GetHMPIDsignal()) ; |
ac2f7574 | 1123 | } |
ac2f7574 | 1124 | } |
6c94f330 | 1125 | |
1126 | Bool_t AliESDtrack::PropagateTo(Double_t xToGo, Double_t b, Double_t mass, | |
1127 | Double_t maxStep, Bool_t rotateTo, Double_t maxSnp){ | |
1128 | //---------------------------------------------------------------- | |
1129 | // | |
1130 | // MI's function | |
1131 | // | |
1132 | // Propagates this track to the plane X=xk (cm) | |
1133 | // in the magnetic field "b" (kG), | |
1134 | // the correction for the material is included | |
1135 | // | |
1136 | // mass - mass used in propagation - used for energy loss correction | |
1137 | // maxStep - maximal step for propagation | |
1138 | //---------------------------------------------------------------- | |
1139 | const Double_t kEpsilon = 0.00001; | |
1140 | Double_t xpos = GetX(); | |
1141 | Double_t dir = (xpos<xToGo) ? 1.:-1.; | |
1142 | // | |
1143 | while ( (xToGo-xpos)*dir > kEpsilon){ | |
1144 | Double_t step = dir*TMath::Min(TMath::Abs(xToGo-xpos), maxStep); | |
1145 | Double_t x = xpos+step; | |
1146 | Double_t xyz0[3],xyz1[3],param[7]; | |
1147 | GetXYZ(xyz0); //starting global position | |
1148 | if (!GetXYZAt(x,b,xyz1)) return kFALSE; // no prolongation | |
1149 | xyz1[2]+=kEpsilon; // waiting for bug correction in geo | |
1150 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); | |
1151 | if (TMath::Abs(GetSnpAt(x,b)) >= maxSnp) return kFALSE; | |
1152 | if (!AliExternalTrackParam::PropagateTo(x,b)) return kFALSE; | |
1153 | ||
1154 | Double_t rho=param[0],x0=param[1],distance=param[4]; | |
1155 | Double_t d=distance*rho/x0; | |
1156 | ||
1157 | if (!CorrectForMaterial(d,x0,mass)) return kFALSE; | |
1158 | if (rotateTo){ | |
1159 | if (TMath::Abs(GetSnp()) >= maxSnp) return kFALSE; | |
1160 | GetXYZ(xyz0); // global position | |
1161 | Double_t alphan = TMath::ATan2(xyz0[1], xyz0[0]); | |
1162 | // | |
1163 | Double_t ca=TMath::Cos(alphan-GetAlpha()), | |
1164 | sa=TMath::Sin(alphan-GetAlpha()); | |
1165 | Double_t sf=GetSnp(), cf=TMath::Sqrt(1.- sf*sf); | |
1166 | Double_t sinNew = sf*ca - cf*sa; | |
1167 | if (TMath::Abs(sinNew) >= maxSnp) return kFALSE; | |
1168 | if (!Rotate(alphan)) return kFALSE; | |
1169 | } | |
1170 | xpos = GetX(); | |
1171 | } | |
1172 | return kTRUE; | |
1173 | } |