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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> |
ae982df3 | 24 | |
49d13e89 | 25 | #include "AliESDVertex.h" |
ae982df3 | 26 | #include "AliESDtrack.h" |
27 | #include "AliKalmanTrack.h" | |
5f7789fc | 28 | #include "AliLog.h" |
15e85efa | 29 | #include "AliTrackPointArray.h" |
ae982df3 | 30 | |
31 | ClassImp(AliESDtrack) | |
32 | ||
d27bbc79 | 33 | void SetPIDValues(Float_t * dest, const Double_t * src, Int_t n) { |
34 | // This function copies "n" PID weights from "scr" to "dest" | |
35 | // and normalizes their sum to 1 thus producing conditional probabilities. | |
36 | // The negative weights are set to 0. | |
37 | // In case all the weights are non-positive they are replaced by | |
38 | // uniform probabilities | |
39 | ||
40 | if (n<=0) return; | |
41 | ||
42 | Float_t uniform = 1./(Float_t)n; | |
43 | ||
44 | Float_t sum = 0; | |
45 | for (Int_t i=0; i<n; i++) | |
46 | if (src[i]>=0) { | |
47 | sum+=src[i]; | |
48 | dest[i] = src[i]; | |
49 | } | |
50 | else { | |
51 | dest[i] = 0; | |
52 | } | |
53 | ||
54 | if(sum>0) | |
55 | for (Int_t i=0; i<n; i++) dest[i] /= sum; | |
56 | else | |
57 | for (Int_t i=0; i<n; i++) dest[i] = uniform; | |
58 | } | |
59 | ||
ae982df3 | 60 | //_______________________________________________________________________ |
61 | AliESDtrack::AliESDtrack() : | |
c9ec41e8 | 62 | AliExternalTrackParam(), |
90e48c0c | 63 | fFlags(0), |
64 | fLabel(0), | |
65 | fID(0), | |
66 | fTrackLength(0), | |
49d13e89 | 67 | fD(0),fZ(0), |
68 | fCdd(0),fCdz(0),fCzz(0), | |
90e48c0c | 69 | fStopVertex(0), |
c9ec41e8 | 70 | fCp(0), |
90e48c0c | 71 | fCchi2(1e10), |
c9ec41e8 | 72 | fIp(0), |
73 | fOp(0), | |
90e48c0c | 74 | fITSchi2(0), |
75 | fITSncls(0), | |
76 | fITSsignal(0), | |
77 | fITSLabel(0), | |
90e48c0c | 78 | fTPCchi2(0), |
79 | fTPCncls(0), | |
e1d4c1b5 | 80 | fTPCnclsF(0), |
90e48c0c | 81 | fTPCClusterMap(159),//number of padrows |
82 | fTPCsignal(0), | |
e1d4c1b5 | 83 | fTPCsignalN(0), |
84 | fTPCsignalS(0), | |
90e48c0c | 85 | fTPCLabel(0), |
86 | fTRDchi2(0), | |
87 | fTRDncls(0), | |
88 | fTRDncls0(0), | |
89 | fTRDsignal(0), | |
90 | fTRDLabel(0), | |
91 | fTRDQuality(0), | |
23d49657 | 92 | fTRDBudget(0), |
90e48c0c | 93 | fTOFchi2(0), |
94 | fTOFindex(0), | |
85324138 | 95 | fTOFCalChannel(-1), |
90e48c0c | 96 | fTOFsignal(-1), |
85324138 | 97 | fTOFsignalToT(0), |
90e48c0c | 98 | fRICHchi2(1e10), |
99 | fRICHncls(0), | |
100 | fRICHindex(0), | |
101 | fRICHsignal(-1), | |
2714766e | 102 | fRICHtheta(-1), |
103 | fRICHphi(-1), | |
104 | fRICHdx(-1), | |
105 | fRICHdy(-1), | |
106 | fRICHmipX(-1), | |
107 | fRICHmipY(-1), | |
15e85efa | 108 | fPoints(0), |
109 | fFriendTrack(new AliESDfriendTrack()) | |
ae982df3 | 110 | { |
111 | // | |
112 | // The default ESD constructor | |
113 | // | |
6d45eaef | 114 | Int_t i, j; |
6238d7a9 | 115 | for (i=0; i<AliPID::kSPECIES; i++) { |
4a78b8c5 | 116 | fTrackTime[i]=0.; |
117 | fR[i]=1.; | |
118 | fITSr[i]=1.; | |
119 | fTPCr[i]=1.; | |
120 | fTRDr[i]=1.; | |
121 | fTOFr[i]=1.; | |
4a78b8c5 | 122 | fRICHr[i]=1.; |
2bad268c | 123 | } |
ac2f7574 | 124 | |
ef7253ac | 125 | for (i=0; i<3; i++) { fKinkIndexes[i]=0;} |
126 | for (i=0; i<3; i++) { fV0Indexes[i]=-1;} | |
6d45eaef | 127 | for (i=0;i<kNPlane;i++) { |
128 | for (j=0;j<kNSlice;j++) { | |
129 | fTRDsignals[i][j]=0.; | |
130 | } | |
131 | fTRDTimBin[i]=-1; | |
132 | } | |
c9ec41e8 | 133 | for (i=0;i<4;i++) {fTPCPoints[i]=-1;} |
134 | for (i=0;i<3;i++) {fTOFLabel[i]=-1;} | |
135 | for (i=0;i<10;i++) {fTOFInfo[i]=-1;} | |
c4d11b15 | 136 | } |
137 | ||
138 | //_______________________________________________________________________ | |
90e48c0c | 139 | AliESDtrack::AliESDtrack(const AliESDtrack& track): |
c9ec41e8 | 140 | AliExternalTrackParam(track), |
90e48c0c | 141 | fFlags(track.fFlags), |
142 | fLabel(track.fLabel), | |
143 | fID(track.fID), | |
144 | fTrackLength(track.fTrackLength), | |
49d13e89 | 145 | fD(track.fD),fZ(track.fZ), |
146 | fCdd(track.fCdd),fCdz(track.fCdz),fCzz(track.fCzz), | |
90e48c0c | 147 | fStopVertex(track.fStopVertex), |
c9ec41e8 | 148 | fCp(0), |
90e48c0c | 149 | fCchi2(track.fCchi2), |
c9ec41e8 | 150 | fIp(0), |
151 | fOp(0), | |
90e48c0c | 152 | fITSchi2(track.fITSchi2), |
153 | fITSncls(track.fITSncls), | |
154 | fITSsignal(track.fITSsignal), | |
155 | fITSLabel(track.fITSLabel), | |
90e48c0c | 156 | fTPCchi2(track.fTPCchi2), |
157 | fTPCncls(track.fTPCncls), | |
e1d4c1b5 | 158 | fTPCnclsF(track.fTPCnclsF), |
90e48c0c | 159 | fTPCClusterMap(track.fTPCClusterMap), |
160 | fTPCsignal(track.fTPCsignal), | |
e1d4c1b5 | 161 | fTPCsignalN(track.fTPCsignalN), |
162 | fTPCsignalS(track.fTPCsignalS), | |
90e48c0c | 163 | fTPCLabel(track.fTPCLabel), |
164 | fTRDchi2(track.fTRDchi2), | |
165 | fTRDncls(track.fTRDncls), | |
166 | fTRDncls0(track.fTRDncls0), | |
167 | fTRDsignal(track.fTRDsignal), | |
168 | fTRDLabel(track.fTRDLabel), | |
169 | fTRDQuality(track.fTRDQuality), | |
23d49657 | 170 | fTRDBudget(track.fTRDBudget), |
90e48c0c | 171 | fTOFchi2(track.fTOFchi2), |
172 | fTOFindex(track.fTOFindex), | |
85324138 | 173 | fTOFCalChannel(track.fTOFCalChannel), |
90e48c0c | 174 | fTOFsignal(track.fTOFsignal), |
85324138 | 175 | fTOFsignalToT(track.fTOFsignalToT), |
90e48c0c | 176 | fRICHchi2(track.fRICHchi2), |
177 | fRICHncls(track.fRICHncls), | |
178 | fRICHindex(track.fRICHindex), | |
179 | fRICHsignal(track.fRICHsignal), | |
180 | fRICHtheta(track.fRICHtheta), | |
181 | fRICHphi(track.fRICHphi), | |
182 | fRICHdx(track.fRICHdx), | |
6238d7a9 | 183 | fRICHdy(track.fRICHdy), |
184 | fRICHmipX(track.fRICHmipX), | |
15e85efa | 185 | fRICHmipY(track.fRICHmipY), |
186 | fPoints(0), | |
8497bca0 | 187 | fFriendTrack(0) |
90e48c0c | 188 | { |
c4d11b15 | 189 | // |
190 | //copy constructor | |
191 | // | |
ef7253ac | 192 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i]=track.fTrackTime[i]; |
193 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fR[i]=track.fR[i]; | |
c4d11b15 | 194 | // |
304864ab | 195 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=track.fITSr[i]; |
c4d11b15 | 196 | // |
304864ab | 197 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=track.fTPCr[i]; |
51ad6848 | 198 | for (Int_t i=0;i<4;i++) {fTPCPoints[i]=track.fTPCPoints[i];} |
199 | for (Int_t i=0; i<3;i++) { fKinkIndexes[i]=track.fKinkIndexes[i];} | |
200 | for (Int_t i=0; i<3;i++) { fV0Indexes[i]=track.fV0Indexes[i];} | |
c4d11b15 | 201 | // |
eab5961e | 202 | for (Int_t i=0;i<kNPlane;i++) { |
6d45eaef | 203 | for (Int_t j=0;j<kNSlice;j++) { |
204 | fTRDsignals[i][j]=track.fTRDsignals[i][j]; | |
205 | } | |
206 | fTRDTimBin[i]=track.fTRDTimBin[i]; | |
eab5961e | 207 | } |
304864ab | 208 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i]=track.fTRDr[i]; |
304864ab | 209 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i]=track.fTOFr[i]; |
51ad6848 | 210 | for (Int_t i=0;i<3;i++) fTOFLabel[i]=track.fTOFLabel[i]; |
211 | for (Int_t i=0;i<10;i++) fTOFInfo[i]=track.fTOFInfo[i]; | |
304864ab | 212 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fRICHr[i]=track.fRICHr[i]; |
c9ec41e8 | 213 | |
214 | if (track.fCp) fCp=new AliExternalTrackParam(*track.fCp); | |
215 | if (track.fIp) fIp=new AliExternalTrackParam(*track.fIp); | |
216 | if (track.fOp) fOp=new AliExternalTrackParam(*track.fOp); | |
15e85efa | 217 | |
218 | if (track.fPoints) fPoints=new AliTrackPointArray(*(track.fPoints)); | |
8497bca0 | 219 | if (track.fFriendTrack) fFriendTrack=new AliESDfriendTrack(*(track.fFriendTrack)); |
ae982df3 | 220 | } |
15e85efa | 221 | |
c4d11b15 | 222 | //_______________________________________________________________________ |
223 | AliESDtrack::~AliESDtrack(){ | |
224 | // | |
225 | // This is destructor according Coding Conventrions | |
226 | // | |
227 | //printf("Delete track\n"); | |
c9ec41e8 | 228 | delete fIp; |
229 | delete fOp; | |
230 | delete fCp; | |
15e85efa | 231 | delete fFriendTrack; |
98937d93 | 232 | delete fPoints; |
c4d11b15 | 233 | } |
ae982df3 | 234 | |
00dce61a | 235 | void AliESDtrack::AddCalibObject(TObject * object){ |
236 | // | |
237 | // add calib object to the list | |
238 | // | |
239 | if (!fFriendTrack) fFriendTrack = new AliESDfriendTrack; | |
240 | fFriendTrack->AddCalibObject(object); | |
241 | } | |
242 | ||
243 | TObject * AliESDtrack::GetCalibObject(Int_t index){ | |
244 | // | |
245 | // return calib objct at given position | |
246 | // | |
247 | if (!fFriendTrack) return 0; | |
248 | return fFriendTrack->GetCalibObject(index); | |
249 | } | |
250 | ||
251 | ||
9559cbc4 | 252 | //_______________________________________________________________________ |
253 | void AliESDtrack::MakeMiniESDtrack(){ | |
254 | // Resets everything except | |
255 | // fFlags: Reconstruction status flags | |
256 | // fLabel: Track label | |
257 | // fID: Unique ID of the track | |
258 | // fD: Impact parameter in XY-plane | |
259 | // fZ: Impact parameter in Z | |
260 | // fR[AliPID::kSPECIES]: combined "detector response probability" | |
8497bca0 | 261 | // Running track parameters in the base class (AliExternalTrackParam) |
9559cbc4 | 262 | |
263 | fTrackLength = 0; | |
264 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTrackTime[i] = 0; | |
265 | fStopVertex = 0; | |
266 | ||
267 | // Reset track parameters constrained to the primary vertex | |
c9ec41e8 | 268 | fCp = 0; |
9559cbc4 | 269 | fCchi2 = 0; |
270 | ||
271 | // Reset track parameters at the inner wall of TPC | |
c9ec41e8 | 272 | fIp = 0; |
9559cbc4 | 273 | |
274 | // Reset track parameters at the inner wall of the TRD | |
c9ec41e8 | 275 | fOp = 0; |
9559cbc4 | 276 | |
277 | // Reset ITS track related information | |
278 | fITSchi2 = 0; | |
9559cbc4 | 279 | fITSncls = 0; |
9559cbc4 | 280 | fITSsignal = 0; |
ef7253ac | 281 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fITSr[i]=0; |
9559cbc4 | 282 | fITSLabel = 0; |
9559cbc4 | 283 | |
284 | // Reset TPC related track information | |
285 | fTPCchi2 = 0; | |
286 | fTPCncls = 0; | |
e1d4c1b5 | 287 | fTPCnclsF = 0; |
9559cbc4 | 288 | fTPCClusterMap = 0; |
289 | fTPCsignal= 0; | |
e1d4c1b5 | 290 | fTPCsignalS= 0; |
291 | fTPCsignalN= 0; | |
9559cbc4 | 292 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0; |
293 | fTPCLabel=0; | |
294 | for (Int_t i=0;i<4;i++) fTPCPoints[i] = 0; | |
295 | for (Int_t i=0; i<3;i++) fKinkIndexes[i] = 0; | |
296 | for (Int_t i=0; i<3;i++) fV0Indexes[i] = 0; | |
297 | ||
298 | // Reset TRD related track information | |
299 | fTRDchi2 = 0; | |
300 | fTRDncls = 0; | |
301 | fTRDncls0 = 0; | |
9559cbc4 | 302 | fTRDsignal = 0; |
303 | for (Int_t i=0;i<kNPlane;i++) { | |
6d45eaef | 304 | for (Int_t j=0;j<kNSlice;j++) { |
305 | fTRDsignals[i][j] = 0; | |
306 | } | |
307 | fTRDTimBin[i] = 0; | |
9559cbc4 | 308 | } |
309 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTRDr[i] = 0; | |
310 | fTRDLabel = 0; | |
9559cbc4 | 311 | fTRDQuality = 0; |
23d49657 | 312 | fTRDBudget = 0; |
9559cbc4 | 313 | |
314 | // Reset TOF related track information | |
315 | fTOFchi2 = 0; | |
316 | fTOFindex = 0; | |
317 | fTOFsignal = 0; | |
85324138 | 318 | fTOFCalChannel = -1; |
319 | fTOFsignalToT = 0; | |
9559cbc4 | 320 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTOFr[i] = 0; |
321 | for (Int_t i=0;i<3;i++) fTOFLabel[i] = 0; | |
322 | for (Int_t i=0;i<10;i++) fTOFInfo[i] = 0; | |
323 | ||
9559cbc4 | 324 | // Reset RICH related track information |
325 | fRICHchi2 = 0; | |
326 | fRICHncls = 0; | |
327 | fRICHindex = 0; | |
328 | fRICHsignal = 0; | |
329 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fRICHr[i] = 0; | |
330 | fRICHtheta = 0; | |
331 | fRICHphi = 0; | |
332 | fRICHdx = 0; | |
333 | fRICHdy = 0; | |
8497bca0 | 334 | fRICHmipX = 0; |
335 | fRICHmipY = 0; | |
9559cbc4 | 336 | |
15e85efa | 337 | delete fFriendTrack; fFriendTrack = 0; |
338 | delete fPoints; fPoints = 0; | |
9559cbc4 | 339 | } |
ae982df3 | 340 | //_______________________________________________________________________ |
4a78b8c5 | 341 | Double_t AliESDtrack::GetMass() const { |
4427806c | 342 | // Returns the mass of the most probable particle type |
ae982df3 | 343 | Float_t max=0.; |
344 | Int_t k=-1; | |
304864ab | 345 | for (Int_t i=0; i<AliPID::kSPECIES; i++) { |
ae982df3 | 346 | if (fR[i]>max) {k=i; max=fR[i];} |
347 | } | |
db3989b3 | 348 | if (k==0) { // dE/dx "crossing points" in the TPC |
349 | Double_t p=GetP(); | |
350 | if ((p>0.38)&&(p<0.48)) | |
304864ab | 351 | if (fR[0]<fR[3]*10.) return AliPID::ParticleMass(AliPID::kKaon); |
db3989b3 | 352 | if ((p>0.75)&&(p<0.85)) |
304864ab | 353 | if (fR[0]<fR[4]*10.) return AliPID::ParticleMass(AliPID::kProton); |
db3989b3 | 354 | return 0.00051; |
355 | } | |
304864ab | 356 | if (k==1) return AliPID::ParticleMass(AliPID::kMuon); |
357 | if (k==2||k==-1) return AliPID::ParticleMass(AliPID::kPion); | |
358 | if (k==3) return AliPID::ParticleMass(AliPID::kKaon); | |
359 | if (k==4) return AliPID::ParticleMass(AliPID::kProton); | |
5f7789fc | 360 | AliWarning("Undefined mass !"); |
304864ab | 361 | return AliPID::ParticleMass(AliPID::kPion); |
ae982df3 | 362 | } |
363 | ||
364 | //_______________________________________________________________________ | |
c9ec41e8 | 365 | Bool_t AliESDtrack::UpdateTrackParams(const AliKalmanTrack *t, ULong_t flags){ |
ae982df3 | 366 | // |
367 | // This function updates track's running parameters | |
368 | // | |
15e85efa | 369 | Int_t *index=0; |
15614b8b | 370 | Bool_t rc=kTRUE; |
371 | ||
9b859005 | 372 | SetStatus(flags); |
373 | fLabel=t->GetLabel(); | |
374 | ||
375 | if (t->IsStartedTimeIntegral()) { | |
376 | SetStatus(kTIME); | |
377 | Double_t times[10];t->GetIntegratedTimes(times); SetIntegratedTimes(times); | |
378 | SetIntegratedLength(t->GetIntegratedLength()); | |
379 | } | |
380 | ||
6c94f330 | 381 | Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); |
e1d4c1b5 | 382 | |
ae982df3 | 383 | switch (flags) { |
ad2f1f2b | 384 | |
9b859005 | 385 | case kITSin: case kITSout: case kITSrefit: |
15e85efa | 386 | index=fFriendTrack->GetITSindices(); |
387 | for (Int_t i=0;i<AliESDfriendTrack::kMaxITScluster;i++) | |
388 | index[i]=t->GetClusterIndex(i); | |
ae982df3 | 389 | fITSncls=t->GetNumberOfClusters(); |
390 | fITSchi2=t->GetChi2(); | |
ae982df3 | 391 | fITSsignal=t->GetPIDsignal(); |
6e5b1b04 | 392 | fITSLabel = t->GetLabel(); |
ae982df3 | 393 | break; |
ad2f1f2b | 394 | |
9b859005 | 395 | case kTPCin: case kTPCrefit: |
6e5b1b04 | 396 | fTPCLabel = t->GetLabel(); |
c9ec41e8 | 397 | if (!fIp) fIp=new AliExternalTrackParam(*t); |
6c94f330 | 398 | else |
399 | fIp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
9b859005 | 400 | case kTPCout: |
15e85efa | 401 | index=fFriendTrack->GetTPCindices(); |
1d303a24 | 402 | if (flags & kTPCout){ |
403 | if (!fOp) fOp=new AliExternalTrackParam(*t); | |
6c94f330 | 404 | else |
405 | fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
1d303a24 | 406 | } |
e1d4c1b5 | 407 | fTPCncls=t->GetNumberOfClusters(); |
ae982df3 | 408 | fTPCchi2=t->GetChi2(); |
a866ac60 | 409 | |
410 | {//prevrow must be declared in separate namespace, otherwise compiler cries: | |
411 | //"jump to case label crosses initialization of `Int_t prevrow'" | |
412 | Int_t prevrow = -1; | |
6e5b1b04 | 413 | // for (Int_t i=0;i<fTPCncls;i++) |
15e85efa | 414 | for (Int_t i=0;i<AliESDfriendTrack::kMaxTPCcluster;i++) |
a866ac60 | 415 | { |
15e85efa | 416 | index[i]=t->GetClusterIndex(i); |
417 | Int_t idx = index[i]; | |
a866ac60 | 418 | |
15e85efa | 419 | if (idx<0) continue; |
9fe5b2ff | 420 | |
a866ac60 | 421 | // Piotr's Cluster Map for HBT |
422 | // ### please change accordingly if cluster array is changing | |
423 | // to "New TPC Tracking" style (with gaps in array) | |
a866ac60 | 424 | Int_t sect = (idx&0xff000000)>>24; |
425 | Int_t row = (idx&0x00ff0000)>>16; | |
426 | if (sect > 18) row +=63; //if it is outer sector, add number of inner sectors | |
427 | ||
428 | fTPCClusterMap.SetBitNumber(row,kTRUE); | |
429 | ||
430 | //Fill the gap between previous row and this row with 0 bits | |
431 | //In case ### pleas change it as well - just set bit 0 in case there | |
432 | //is no associated clusters for current "i" | |
433 | if (prevrow < 0) | |
434 | { | |
435 | prevrow = row;//if previous bit was not assigned yet == this is the first one | |
436 | } | |
437 | else | |
438 | { //we don't know the order (inner to outer or reverse) | |
439 | //just to be save in case it is going to change | |
440 | Int_t n = 0, m = 0; | |
441 | if (prevrow < row) | |
442 | { | |
443 | n = prevrow; | |
444 | m = row; | |
445 | } | |
446 | else | |
447 | { | |
448 | n = row; | |
449 | m = prevrow; | |
450 | } | |
451 | ||
452 | for (Int_t j = n+1; j < m; j++) | |
453 | { | |
454 | fTPCClusterMap.SetBitNumber(j,kFALSE); | |
455 | } | |
456 | prevrow = row; | |
457 | } | |
458 | // End Of Piotr's Cluster Map for HBT | |
459 | } | |
460 | } | |
ae982df3 | 461 | fTPCsignal=t->GetPIDsignal(); |
ae982df3 | 462 | break; |
9b859005 | 463 | |
23904d16 | 464 | case kTRDout: case kTRDin: case kTRDrefit: |
15e85efa | 465 | index=fFriendTrack->GetTRDindices(); |
51ad6848 | 466 | fTRDLabel = t->GetLabel(); |
79e94bf8 | 467 | fTRDncls=t->GetNumberOfClusters(); |
468 | fTRDchi2=t->GetChi2(); | |
15e85efa | 469 | for (Int_t i=0;i<fTRDncls;i++) index[i]=t->GetClusterIndex(i); |
79e94bf8 | 470 | fTRDsignal=t->GetPIDsignal(); |
471 | break; | |
c4d11b15 | 472 | case kTRDbackup: |
c9ec41e8 | 473 | if (!fOp) fOp=new AliExternalTrackParam(*t); |
6c94f330 | 474 | else |
475 | fOp->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
c4d11b15 | 476 | fTRDncls0 = t->GetNumberOfClusters(); |
477 | break; | |
478 | case kTOFin: | |
479 | break; | |
480 | case kTOFout: | |
481 | break; | |
d0862fea | 482 | case kTRDStop: |
483 | break; | |
ae982df3 | 484 | default: |
5f7789fc | 485 | AliError("Wrong flag !"); |
ae982df3 | 486 | return kFALSE; |
487 | } | |
488 | ||
15614b8b | 489 | return rc; |
ae982df3 | 490 | } |
491 | ||
492 | //_______________________________________________________________________ | |
493 | void AliESDtrack::GetExternalParameters(Double_t &x, Double_t p[5]) const { | |
494 | //--------------------------------------------------------------------- | |
495 | // This function returns external representation of the track parameters | |
496 | //--------------------------------------------------------------------- | |
c9ec41e8 | 497 | x=GetX(); |
498 | for (Int_t i=0; i<5; i++) p[i]=GetParameter()[i]; | |
15614b8b | 499 | } |
500 | ||
67c3dcbe | 501 | //_______________________________________________________________________ |
a866ac60 | 502 | void AliESDtrack::GetExternalCovariance(Double_t cov[15]) const { |
67c3dcbe | 503 | //--------------------------------------------------------------------- |
504 | // This function returns external representation of the cov. matrix | |
505 | //--------------------------------------------------------------------- | |
c9ec41e8 | 506 | for (Int_t i=0; i<15; i++) cov[i]=AliExternalTrackParam::GetCovariance()[i]; |
67c3dcbe | 507 | } |
508 | ||
67c3dcbe | 509 | //_______________________________________________________________________ |
c0b978f0 | 510 | Bool_t AliESDtrack::GetConstrainedExternalParameters |
511 | (Double_t &alpha, Double_t &x, Double_t p[5]) const { | |
67c3dcbe | 512 | //--------------------------------------------------------------------- |
513 | // This function returns the constrained external track parameters | |
514 | //--------------------------------------------------------------------- | |
c0b978f0 | 515 | if (!fCp) return kFALSE; |
516 | alpha=fCp->GetAlpha(); | |
c9ec41e8 | 517 | x=fCp->GetX(); |
518 | for (Int_t i=0; i<5; i++) p[i]=fCp->GetParameter()[i]; | |
c0b978f0 | 519 | return kTRUE; |
67c3dcbe | 520 | } |
c9ec41e8 | 521 | |
67c3dcbe | 522 | //_______________________________________________________________________ |
c0b978f0 | 523 | Bool_t |
67c3dcbe | 524 | AliESDtrack::GetConstrainedExternalCovariance(Double_t c[15]) const { |
525 | //--------------------------------------------------------------------- | |
526 | // This function returns the constrained external cov. matrix | |
527 | //--------------------------------------------------------------------- | |
c0b978f0 | 528 | if (!fCp) return kFALSE; |
c9ec41e8 | 529 | for (Int_t i=0; i<15; i++) c[i]=fCp->GetCovariance()[i]; |
c0b978f0 | 530 | return kTRUE; |
67c3dcbe | 531 | } |
532 | ||
c0b978f0 | 533 | Bool_t |
534 | AliESDtrack::GetInnerExternalParameters | |
535 | (Double_t &alpha, Double_t &x, Double_t p[5]) const { | |
536 | //--------------------------------------------------------------------- | |
c9ec41e8 | 537 | // This function returns external representation of the track parameters |
538 | // at the inner layer of TPC | |
9b859005 | 539 | //--------------------------------------------------------------------- |
c0b978f0 | 540 | if (!fIp) return kFALSE; |
541 | alpha=fIp->GetAlpha(); | |
c9ec41e8 | 542 | x=fIp->GetX(); |
543 | for (Int_t i=0; i<5; i++) p[i]=fIp->GetParameter()[i]; | |
c0b978f0 | 544 | return kTRUE; |
9b859005 | 545 | } |
546 | ||
c0b978f0 | 547 | Bool_t |
548 | AliESDtrack::GetInnerExternalCovariance(Double_t cov[15]) const { | |
c9ec41e8 | 549 | //--------------------------------------------------------------------- |
550 | // This function returns external representation of the cov. matrix | |
551 | // at the inner layer of TPC | |
552 | //--------------------------------------------------------------------- | |
c0b978f0 | 553 | if (!fIp) return kFALSE; |
c9ec41e8 | 554 | for (Int_t i=0; i<15; i++) cov[i]=fIp->GetCovariance()[i]; |
c0b978f0 | 555 | return kTRUE; |
9b859005 | 556 | } |
557 | ||
c0b978f0 | 558 | Bool_t |
559 | AliESDtrack::GetOuterExternalParameters | |
560 | (Double_t &alpha, Double_t &x, Double_t p[5]) const { | |
561 | //--------------------------------------------------------------------- | |
c9ec41e8 | 562 | // This function returns external representation of the track parameters |
563 | // at the inner layer of TRD | |
a866ac60 | 564 | //--------------------------------------------------------------------- |
c0b978f0 | 565 | if (!fOp) return kFALSE; |
566 | alpha=fOp->GetAlpha(); | |
c9ec41e8 | 567 | x=fOp->GetX(); |
568 | for (Int_t i=0; i<5; i++) p[i]=fOp->GetParameter()[i]; | |
c0b978f0 | 569 | return kTRUE; |
a866ac60 | 570 | } |
c9ec41e8 | 571 | |
c0b978f0 | 572 | Bool_t |
573 | AliESDtrack::GetOuterExternalCovariance(Double_t cov[15]) const { | |
a866ac60 | 574 | //--------------------------------------------------------------------- |
c9ec41e8 | 575 | // This function returns external representation of the cov. matrix |
576 | // at the inner layer of TRD | |
a866ac60 | 577 | //--------------------------------------------------------------------- |
c0b978f0 | 578 | if (!fOp) return kFALSE; |
c9ec41e8 | 579 | for (Int_t i=0; i<15; i++) cov[i]=fOp->GetCovariance()[i]; |
c0b978f0 | 580 | return kTRUE; |
a866ac60 | 581 | } |
582 | ||
98937d93 | 583 | Int_t AliESDtrack::GetNcls(Int_t idet) const |
584 | { | |
585 | // Get number of clusters by subdetector index | |
586 | // | |
587 | Int_t ncls = 0; | |
588 | switch(idet){ | |
589 | case 0: | |
590 | ncls = fITSncls; | |
591 | break; | |
592 | case 1: | |
593 | ncls = fTPCncls; | |
594 | break; | |
595 | case 2: | |
596 | ncls = fTRDncls; | |
597 | break; | |
598 | case 3: | |
599 | if (fTOFindex != 0) | |
600 | ncls = 1; | |
601 | break; | |
602 | default: | |
603 | break; | |
604 | } | |
605 | return ncls; | |
606 | } | |
607 | ||
ef7253ac | 608 | Int_t AliESDtrack::GetClusters(Int_t idet, Int_t *idx) const |
98937d93 | 609 | { |
610 | // Get cluster index array by subdetector index | |
611 | // | |
612 | Int_t ncls = 0; | |
613 | switch(idet){ | |
614 | case 0: | |
615 | ncls = GetITSclusters(idx); | |
616 | break; | |
617 | case 1: | |
ef7253ac | 618 | ncls = GetTPCclusters(idx); |
98937d93 | 619 | break; |
620 | case 2: | |
621 | ncls = GetTRDclusters(idx); | |
622 | break; | |
623 | case 3: | |
624 | if (fTOFindex != 0) { | |
625 | idx[0] = GetTOFcluster(); | |
626 | ncls = 1; | |
627 | } | |
628 | break; | |
629 | default: | |
630 | break; | |
631 | } | |
632 | return ncls; | |
633 | } | |
634 | ||
ae982df3 | 635 | //_______________________________________________________________________ |
636 | void AliESDtrack::GetIntegratedTimes(Double_t *times) const { | |
4427806c | 637 | // Returns the array with integrated times for each particle hypothesis |
304864ab | 638 | for (Int_t i=0; i<AliPID::kSPECIES; i++) times[i]=fTrackTime[i]; |
ae982df3 | 639 | } |
640 | ||
641 | //_______________________________________________________________________ | |
642 | void AliESDtrack::SetIntegratedTimes(const Double_t *times) { | |
4427806c | 643 | // Sets the array with integrated times for each particle hypotesis |
304864ab | 644 | for (Int_t i=0; i<AliPID::kSPECIES; i++) fTrackTime[i]=times[i]; |
ae982df3 | 645 | } |
646 | ||
c630aafd | 647 | //_______________________________________________________________________ |
4427806c | 648 | void AliESDtrack::SetITSpid(const Double_t *p) { |
649 | // Sets values for the probability of each particle type (in ITS) | |
d27bbc79 | 650 | SetPIDValues(fITSr,p,AliPID::kSPECIES); |
c630aafd | 651 | SetStatus(AliESDtrack::kITSpid); |
652 | } | |
653 | ||
654 | //_______________________________________________________________________ | |
655 | void AliESDtrack::GetITSpid(Double_t *p) const { | |
4427806c | 656 | // Gets the probability of each particle type (in ITS) |
304864ab | 657 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fITSr[i]; |
c630aafd | 658 | } |
659 | ||
ae982df3 | 660 | //_______________________________________________________________________ |
ef7253ac | 661 | Int_t AliESDtrack::GetITSclusters(Int_t *idx) const { |
ae982df3 | 662 | //--------------------------------------------------------------------- |
663 | // This function returns indices of the assgined ITS clusters | |
664 | //--------------------------------------------------------------------- | |
15e85efa | 665 | if (idx!=0) { |
666 | Int_t *index=fFriendTrack->GetITSindices(); | |
667 | for (Int_t i=0; i<AliESDfriendTrack::kMaxITScluster; i++) idx[i]=index[i]; | |
668 | } | |
ae982df3 | 669 | return fITSncls; |
670 | } | |
671 | ||
672 | //_______________________________________________________________________ | |
05e445cd | 673 | Int_t AliESDtrack::GetTPCclusters(Int_t *idx) const { |
ae982df3 | 674 | //--------------------------------------------------------------------- |
675 | // This function returns indices of the assgined ITS clusters | |
676 | //--------------------------------------------------------------------- | |
15e85efa | 677 | if (idx!=0) { |
678 | Int_t *index=fFriendTrack->GetTPCindices(); | |
679 | for (Int_t i=0; i<AliESDfriendTrack::kMaxTPCcluster; i++) idx[i]=index[i]; | |
680 | } | |
ae982df3 | 681 | return fTPCncls; |
682 | } | |
8c6a71ab | 683 | |
81e97e0d | 684 | Float_t AliESDtrack::GetTPCdensity(Int_t row0, Int_t row1) const{ |
685 | // | |
686 | // GetDensity of the clusters on given region between row0 and row1 | |
687 | // Dead zone effect takin into acoount | |
688 | // | |
689 | Int_t good = 0; | |
690 | Int_t found = 0; | |
691 | // | |
15e85efa | 692 | Int_t *index=fFriendTrack->GetTPCindices(); |
81e97e0d | 693 | for (Int_t i=row0;i<=row1;i++){ |
15e85efa | 694 | Int_t idx = index[i]; |
695 | if (idx!=-1) good++; // track outside of dead zone | |
696 | if (idx>0) found++; | |
81e97e0d | 697 | } |
698 | Float_t density=0.5; | |
699 | if (good>(row1-row0)*0.5) density = Float_t(found)/Float_t(good); | |
700 | return density; | |
701 | } | |
c84a5e9e | 702 | |
8c6a71ab | 703 | //_______________________________________________________________________ |
704 | void AliESDtrack::SetTPCpid(const Double_t *p) { | |
4427806c | 705 | // Sets values for the probability of each particle type (in TPC) |
d27bbc79 | 706 | SetPIDValues(fTPCr,p,AliPID::kSPECIES); |
8c6a71ab | 707 | SetStatus(AliESDtrack::kTPCpid); |
708 | } | |
709 | ||
710 | //_______________________________________________________________________ | |
711 | void AliESDtrack::GetTPCpid(Double_t *p) const { | |
4427806c | 712 | // Gets the probability of each particle type (in TPC) |
304864ab | 713 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTPCr[i]; |
8c6a71ab | 714 | } |
715 | ||
bb2ceb1f | 716 | //_______________________________________________________________________ |
ef7253ac | 717 | Int_t AliESDtrack::GetTRDclusters(Int_t *idx) const { |
bb2ceb1f | 718 | //--------------------------------------------------------------------- |
719 | // This function returns indices of the assgined TRD clusters | |
720 | //--------------------------------------------------------------------- | |
15e85efa | 721 | if (idx!=0) { |
722 | Int_t *index=fFriendTrack->GetTRDindices(); | |
723 | for (Int_t i=0; i<AliESDfriendTrack::kMaxTRDcluster; i++) idx[i]=index[i]; | |
724 | } | |
bb2ceb1f | 725 | return fTRDncls; |
726 | } | |
727 | ||
c630aafd | 728 | //_______________________________________________________________________ |
729 | void AliESDtrack::SetTRDpid(const Double_t *p) { | |
4427806c | 730 | // Sets values for the probability of each particle type (in TRD) |
d27bbc79 | 731 | SetPIDValues(fTRDr,p,AliPID::kSPECIES); |
c630aafd | 732 | SetStatus(AliESDtrack::kTRDpid); |
733 | } | |
734 | ||
735 | //_______________________________________________________________________ | |
736 | void AliESDtrack::GetTRDpid(Double_t *p) const { | |
4427806c | 737 | // Gets the probability of each particle type (in TRD) |
304864ab | 738 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTRDr[i]; |
c630aafd | 739 | } |
740 | ||
79e94bf8 | 741 | //_______________________________________________________________________ |
742 | void AliESDtrack::SetTRDpid(Int_t iSpecies, Float_t p) | |
743 | { | |
4427806c | 744 | // Sets the probability of particle type iSpecies to p (in TRD) |
79e94bf8 | 745 | fTRDr[iSpecies] = p; |
746 | } | |
747 | ||
748 | Float_t AliESDtrack::GetTRDpid(Int_t iSpecies) const | |
749 | { | |
4427806c | 750 | // Returns the probability of particle type iSpecies (in TRD) |
79e94bf8 | 751 | return fTRDr[iSpecies]; |
752 | } | |
753 | ||
c630aafd | 754 | //_______________________________________________________________________ |
755 | void AliESDtrack::SetTOFpid(const Double_t *p) { | |
4427806c | 756 | // Sets the probability of each particle type (in TOF) |
d27bbc79 | 757 | SetPIDValues(fTOFr,p,AliPID::kSPECIES); |
c630aafd | 758 | SetStatus(AliESDtrack::kTOFpid); |
759 | } | |
760 | ||
51ad6848 | 761 | //_______________________________________________________________________ |
762 | void AliESDtrack::SetTOFLabel(const Int_t *p) { | |
763 | // Sets (in TOF) | |
764 | for (Int_t i=0; i<3; i++) fTOFLabel[i]=p[i]; | |
765 | } | |
766 | ||
c630aafd | 767 | //_______________________________________________________________________ |
768 | void AliESDtrack::GetTOFpid(Double_t *p) const { | |
4427806c | 769 | // Gets probabilities of each particle type (in TOF) |
304864ab | 770 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fTOFr[i]; |
c630aafd | 771 | } |
772 | ||
51ad6848 | 773 | //_______________________________________________________________________ |
774 | void AliESDtrack::GetTOFLabel(Int_t *p) const { | |
775 | // Gets (in TOF) | |
776 | for (Int_t i=0; i<3; i++) p[i]=fTOFLabel[i]; | |
777 | } | |
778 | ||
779 | //_______________________________________________________________________ | |
780 | void AliESDtrack::GetTOFInfo(Float_t *info) const { | |
781 | // Gets (in TOF) | |
782 | for (Int_t i=0; i<10; i++) info[i]=fTOFInfo[i]; | |
783 | } | |
784 | ||
785 | //_______________________________________________________________________ | |
786 | void AliESDtrack::SetTOFInfo(Float_t*info) { | |
787 | // Gets (in TOF) | |
788 | for (Int_t i=0; i<10; i++) fTOFInfo[i]=info[i]; | |
789 | } | |
790 | ||
4a78b8c5 | 791 | |
792 | ||
4a78b8c5 | 793 | //_______________________________________________________________________ |
794 | void AliESDtrack::SetRICHpid(const Double_t *p) { | |
795 | // Sets the probability of each particle type (in RICH) | |
d27bbc79 | 796 | SetPIDValues(fRICHr,p,AliPID::kSPECIES); |
4a78b8c5 | 797 | SetStatus(AliESDtrack::kRICHpid); |
798 | } | |
799 | ||
800 | //_______________________________________________________________________ | |
801 | void AliESDtrack::GetRICHpid(Double_t *p) const { | |
802 | // Gets probabilities of each particle type (in RICH) | |
304864ab | 803 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fRICHr[i]; |
4a78b8c5 | 804 | } |
805 | ||
806 | ||
807 | ||
8c6a71ab | 808 | //_______________________________________________________________________ |
809 | void AliESDtrack::SetESDpid(const Double_t *p) { | |
4427806c | 810 | // Sets the probability of each particle type for the ESD track |
d27bbc79 | 811 | SetPIDValues(fR,p,AliPID::kSPECIES); |
8c6a71ab | 812 | SetStatus(AliESDtrack::kESDpid); |
813 | } | |
814 | ||
815 | //_______________________________________________________________________ | |
816 | void AliESDtrack::GetESDpid(Double_t *p) const { | |
4427806c | 817 | // Gets probability of each particle type for the ESD track |
304864ab | 818 | for (Int_t i=0; i<AliPID::kSPECIES; i++) p[i]=fR[i]; |
8c6a71ab | 819 | } |
820 | ||
49d13e89 | 821 | //_______________________________________________________________________ |
822 | Bool_t AliESDtrack::RelateToVertex | |
823 | (const AliESDVertex *vtx, Double_t b, Double_t maxd) { | |
824 | // | |
825 | // Try to relate this track to the vertex "vtx", | |
826 | // if the (rough) transverse impact parameter is not bigger then "maxd". | |
827 | // Magnetic field is "b" (kG). | |
828 | // | |
829 | // a) The track gets extapolated to the DCA to the vertex. | |
830 | // b) The impact parameters and their covariance matrix are calculated. | |
831 | // c) An attempt to constrain this track to the vertex is done. | |
832 | // | |
833 | // In the case of success, the returned value is kTRUE | |
834 | // (otherwise, it's kFALSE) | |
835 | // | |
b5d34a4c | 836 | |
837 | if (!vtx) return kFALSE; | |
838 | ||
49d13e89 | 839 | Double_t alpha=GetAlpha(); |
840 | Double_t sn=TMath::Sin(alpha), cs=TMath::Cos(alpha); | |
841 | Double_t x=GetX(), y=GetParameter()[0], snp=GetParameter()[2]; | |
842 | Double_t xv= vtx->GetXv()*cs + vtx->GetYv()*sn; | |
843 | Double_t yv=-vtx->GetXv()*sn + vtx->GetYv()*cs, zv=vtx->GetZv(); | |
844 | x-=xv; y-=yv; | |
845 | ||
846 | //Estimate the impact parameter neglecting the track curvature | |
847 | Double_t d=TMath::Abs(x*snp - y*TMath::Sqrt(1.- snp*snp)); | |
848 | if (d > maxd) return kFALSE; | |
849 | ||
850 | //Propagate to the DCA | |
5773defd | 851 | Double_t crv=kB2C*b*GetParameter()[4]; |
852 | if (TMath::Abs(b) < kAlmost0Field) crv=0.; | |
853 | ||
49d13e89 | 854 | Double_t tgfv=-(crv*x - snp)/(crv*y + TMath::Sqrt(1.-snp*snp)); |
f54395bf | 855 | sn=tgfv/TMath::Sqrt(1.+ tgfv*tgfv); |
856 | if (TMath::Abs(tgfv)>0.) cs = sn/tgfv; | |
857 | else cs=1.; | |
49d13e89 | 858 | |
859 | x = xv*cs + yv*sn; | |
860 | yv=-xv*sn + yv*cs; xv=x; | |
861 | ||
862 | if (!Propagate(alpha+TMath::ASin(sn),xv,b)) return kFALSE; | |
863 | ||
864 | fD = GetParameter()[0] - yv; | |
865 | fZ = GetParameter()[1] - zv; | |
866 | ||
867 | Double_t cov[6]; vtx->GetCovMatrix(cov); | |
868 | fCdd = GetCovariance()[0] + cov[2]; // neglecting non-diagonals | |
869 | fCdz = GetCovariance()[1]; // in the vertex's | |
870 | fCzz = GetCovariance()[2] + cov[5]; // covariance matrix | |
871 | ||
872 | {//Try to constrain | |
873 | Double_t p[2]={yv,zv}, c[3]={cov[2],0.,cov[5]}; | |
874 | Double_t chi2=GetPredictedChi2(p,c); | |
875 | ||
876 | if (chi2>77.) return kFALSE; | |
877 | ||
878 | AliExternalTrackParam tmp(*this); | |
879 | if (!tmp.Update(p,c)) return kFALSE; | |
880 | ||
881 | fCchi2=chi2; | |
882 | if (!fCp) fCp=new AliExternalTrackParam(); | |
883 | new (fCp) AliExternalTrackParam(tmp); | |
884 | } | |
885 | ||
886 | return kTRUE; | |
887 | } | |
888 | ||
15e85efa | 889 | void AliESDtrack::SetTrackPointArray(AliTrackPointArray *points) { |
890 | fPoints=points; | |
891 | //fFriendTrack->SetTrackPointArray(points); | |
892 | } | |
893 | const AliTrackPointArray *AliESDtrack::GetTrackPointArray() const { | |
894 | return fPoints; | |
895 | //return fFriendTrack->GetTrackPointArray(); | |
896 | } | |
897 | ||
ac2f7574 | 898 | //_______________________________________________________________________ |
899 | void AliESDtrack::Print(Option_t *) const { | |
900 | // Prints info on the track | |
901 | ||
5f7789fc | 902 | printf("ESD track info\n") ; |
304864ab | 903 | Double_t p[AliPID::kSPECIESN] ; |
ac2f7574 | 904 | Int_t index = 0 ; |
905 | if( IsOn(kITSpid) ){ | |
906 | printf("From ITS: ") ; | |
907 | GetITSpid(p) ; | |
304864ab | 908 | for(index = 0 ; index < AliPID::kSPECIES; index++) |
ac2f7574 | 909 | printf("%f, ", p[index]) ; |
910 | printf("\n signal = %f\n", GetITSsignal()) ; | |
911 | } | |
912 | if( IsOn(kTPCpid) ){ | |
913 | printf("From TPC: ") ; | |
914 | GetTPCpid(p) ; | |
304864ab | 915 | for(index = 0 ; index < AliPID::kSPECIES; index++) |
ac2f7574 | 916 | printf("%f, ", p[index]) ; |
917 | printf("\n signal = %f\n", GetTPCsignal()) ; | |
918 | } | |
919 | if( IsOn(kTRDpid) ){ | |
920 | printf("From TRD: ") ; | |
921 | GetTRDpid(p) ; | |
304864ab | 922 | for(index = 0 ; index < AliPID::kSPECIES; index++) |
ac2f7574 | 923 | printf("%f, ", p[index]) ; |
924 | printf("\n signal = %f\n", GetTRDsignal()) ; | |
925 | } | |
926 | if( IsOn(kTOFpid) ){ | |
927 | printf("From TOF: ") ; | |
928 | GetTOFpid(p) ; | |
304864ab | 929 | for(index = 0 ; index < AliPID::kSPECIES; index++) |
ac2f7574 | 930 | printf("%f, ", p[index]) ; |
931 | printf("\n signal = %f\n", GetTOFsignal()) ; | |
932 | } | |
933 | if( IsOn(kRICHpid) ){ | |
038834e7 | 934 | printf("From RICH: ") ; |
ac2f7574 | 935 | GetRICHpid(p) ; |
304864ab | 936 | for(index = 0 ; index < AliPID::kSPECIES; index++) |
ac2f7574 | 937 | printf("%f, ", p[index]) ; |
938 | printf("\n signal = %f\n", GetRICHsignal()) ; | |
939 | } | |
ac2f7574 | 940 | } |
6c94f330 | 941 | |
942 | Bool_t AliESDtrack::PropagateTo(Double_t xToGo, Double_t b, Double_t mass, | |
943 | Double_t maxStep, Bool_t rotateTo, Double_t maxSnp){ | |
944 | //---------------------------------------------------------------- | |
945 | // | |
946 | // MI's function | |
947 | // | |
948 | // Propagates this track to the plane X=xk (cm) | |
949 | // in the magnetic field "b" (kG), | |
950 | // the correction for the material is included | |
951 | // | |
952 | // mass - mass used in propagation - used for energy loss correction | |
953 | // maxStep - maximal step for propagation | |
954 | //---------------------------------------------------------------- | |
955 | const Double_t kEpsilon = 0.00001; | |
956 | Double_t xpos = GetX(); | |
957 | Double_t dir = (xpos<xToGo) ? 1.:-1.; | |
958 | // | |
959 | while ( (xToGo-xpos)*dir > kEpsilon){ | |
960 | Double_t step = dir*TMath::Min(TMath::Abs(xToGo-xpos), maxStep); | |
961 | Double_t x = xpos+step; | |
962 | Double_t xyz0[3],xyz1[3],param[7]; | |
963 | GetXYZ(xyz0); //starting global position | |
964 | if (!GetXYZAt(x,b,xyz1)) return kFALSE; // no prolongation | |
965 | xyz1[2]+=kEpsilon; // waiting for bug correction in geo | |
966 | AliKalmanTrack::MeanMaterialBudget(xyz0,xyz1,param); | |
967 | if (TMath::Abs(GetSnpAt(x,b)) >= maxSnp) return kFALSE; | |
968 | if (!AliExternalTrackParam::PropagateTo(x,b)) return kFALSE; | |
969 | ||
970 | Double_t rho=param[0],x0=param[1],distance=param[4]; | |
971 | Double_t d=distance*rho/x0; | |
972 | ||
973 | if (!CorrectForMaterial(d,x0,mass)) return kFALSE; | |
974 | if (rotateTo){ | |
975 | if (TMath::Abs(GetSnp()) >= maxSnp) return kFALSE; | |
976 | GetXYZ(xyz0); // global position | |
977 | Double_t alphan = TMath::ATan2(xyz0[1], xyz0[0]); | |
978 | // | |
979 | Double_t ca=TMath::Cos(alphan-GetAlpha()), | |
980 | sa=TMath::Sin(alphan-GetAlpha()); | |
981 | Double_t sf=GetSnp(), cf=TMath::Sqrt(1.- sf*sf); | |
982 | Double_t sinNew = sf*ca - cf*sa; | |
983 | if (TMath::Abs(sinNew) >= maxSnp) return kFALSE; | |
984 | if (!Rotate(alphan)) return kFALSE; | |
985 | } | |
986 | xpos = GetX(); | |
987 | } | |
988 | return kTRUE; | |
989 | } |