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