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df9db588 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2007, 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 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | //------------------------------------------------------------------------- | |
4f6e22bd | 19 | // AOD track implementation of AliVTrack |
df9db588 | 20 | // Author: Markus Oldenburg, CERN |
0c5f89fb | 21 | // Markus.Oldenburg@cern.ch |
df9db588 | 22 | //------------------------------------------------------------------------- |
23 | ||
8ac4fa64 | 24 | #include "AliLog.h" |
6dc40b1c | 25 | #include "AliExternalTrackParam.h" |
26 | #include "AliVVertex.h" | |
df9db588 | 27 | #include "AliAODTrack.h" |
28 | ||
29 | ClassImp(AliAODTrack) | |
30 | ||
31 | //______________________________________________________________________________ | |
32 | AliAODTrack::AliAODTrack() : | |
4f6e22bd | 33 | AliVTrack(), |
f43586f0 | 34 | fRAtAbsorberEnd(0.), |
1912763f | 35 | fChi2perNDF(-999.), |
9333290e | 36 | fChi2MatchTrigger(0.), |
6efb741f | 37 | fFlags(0), |
df9db588 | 38 | fLabel(-999), |
1912763f | 39 | fITSMuonClusterMap(0), |
9333290e | 40 | fFilterMap(0), |
d999f2e6 | 41 | fTPCClusterMap(), |
42 | fTPCSharedMap(), | |
3c01c166 | 43 | fTPCnclsF(0), |
02153d58 | 44 | fID(-999), |
9333290e | 45 | fCharge(-99), |
e1c744ca | 46 | fType(kUndef), |
a7d9ab9e | 47 | fCaloIndex(kEMCALNoMatch), |
9333290e | 48 | fCovMatrix(NULL), |
7be1db84 | 49 | fDetPid(NULL), |
50 | fProdVertex(NULL) | |
df9db588 | 51 | { |
52 | // default constructor | |
53 | ||
54 | SetP(); | |
55 | SetPosition((Float_t*)NULL); | |
6c954176 | 56 | SetXYAtDCA(-999., -999.); |
57 | SetPxPyPzAtDCA(-999., -999., -999.); | |
df9db588 | 58 | SetPID((Float_t*)NULL); |
59 | } | |
60 | ||
61 | //______________________________________________________________________________ | |
02153d58 | 62 | AliAODTrack::AliAODTrack(Short_t id, |
df9db588 | 63 | Int_t label, |
64 | Double_t p[3], | |
65 | Bool_t cartesian, | |
66 | Double_t x[3], | |
67 | Bool_t isDCA, | |
68 | Double_t covMatrix[21], | |
69 | Short_t charge, | |
70 | UChar_t itsClusMap, | |
71 | Double_t pid[10], | |
72 | AliAODVertex *prodVertex, | |
1912763f | 73 | Bool_t usedForVtxFit, |
dc825b15 | 74 | Bool_t usedForPrimVtxFit, |
ec40c484 | 75 | AODTrk_t ttype, |
862ce351 | 76 | UInt_t selectInfo, |
77 | Float_t chi2perNDF) : | |
4f6e22bd | 78 | AliVTrack(), |
f43586f0 | 79 | fRAtAbsorberEnd(0.), |
862ce351 | 80 | fChi2perNDF(chi2perNDF), |
9333290e | 81 | fChi2MatchTrigger(0.), |
6efb741f | 82 | fFlags(0), |
df9db588 | 83 | fLabel(label), |
6c954176 | 84 | fITSMuonClusterMap(0), |
9333290e | 85 | fFilterMap(selectInfo), |
d999f2e6 | 86 | fTPCClusterMap(), |
87 | fTPCSharedMap(), | |
3c01c166 | 88 | fTPCnclsF(0), |
02153d58 | 89 | fID(id), |
9333290e | 90 | fCharge(charge), |
e1c744ca | 91 | fType(ttype), |
a7d9ab9e | 92 | fCaloIndex(kEMCALNoMatch), |
9333290e | 93 | fCovMatrix(NULL), |
7be1db84 | 94 | fDetPid(NULL), |
9333290e | 95 | fProdVertex(prodVertex) |
df9db588 | 96 | { |
97 | // constructor | |
98 | ||
99 | SetP(p, cartesian); | |
100 | SetPosition(x, isDCA); | |
6c954176 | 101 | SetXYAtDCA(-999., -999.); |
102 | SetPxPyPzAtDCA(-999., -999., -999.); | |
1912763f | 103 | SetUsedForVtxFit(usedForVtxFit); |
dc825b15 | 104 | SetUsedForPrimVtxFit(usedForPrimVtxFit); |
df9db588 | 105 | if(covMatrix) SetCovMatrix(covMatrix); |
106 | SetPID(pid); | |
6c954176 | 107 | SetITSClusterMap(itsClusMap); |
df9db588 | 108 | } |
109 | ||
110 | //______________________________________________________________________________ | |
02153d58 | 111 | AliAODTrack::AliAODTrack(Short_t id, |
df9db588 | 112 | Int_t label, |
113 | Float_t p[3], | |
114 | Bool_t cartesian, | |
115 | Float_t x[3], | |
116 | Bool_t isDCA, | |
117 | Float_t covMatrix[21], | |
118 | Short_t charge, | |
119 | UChar_t itsClusMap, | |
120 | Float_t pid[10], | |
121 | AliAODVertex *prodVertex, | |
1912763f | 122 | Bool_t usedForVtxFit, |
dc825b15 | 123 | Bool_t usedForPrimVtxFit, |
ec40c484 | 124 | AODTrk_t ttype, |
862ce351 | 125 | UInt_t selectInfo, |
126 | Float_t chi2perNDF) : | |
4f6e22bd | 127 | AliVTrack(), |
f43586f0 | 128 | fRAtAbsorberEnd(0.), |
862ce351 | 129 | fChi2perNDF(chi2perNDF), |
9333290e | 130 | fChi2MatchTrigger(0.), |
6efb741f | 131 | fFlags(0), |
df9db588 | 132 | fLabel(label), |
6c954176 | 133 | fITSMuonClusterMap(0), |
9333290e | 134 | fFilterMap(selectInfo), |
d999f2e6 | 135 | fTPCClusterMap(), |
136 | fTPCSharedMap(), | |
3c01c166 | 137 | fTPCnclsF(0), |
02153d58 | 138 | fID(id), |
9333290e | 139 | fCharge(charge), |
e1c744ca | 140 | fType(ttype), |
a7d9ab9e | 141 | fCaloIndex(kEMCALNoMatch), |
9333290e | 142 | fCovMatrix(NULL), |
7be1db84 | 143 | fDetPid(NULL), |
9333290e | 144 | fProdVertex(prodVertex) |
df9db588 | 145 | { |
146 | // constructor | |
147 | ||
148 | SetP(p, cartesian); | |
149 | SetPosition(x, isDCA); | |
6c954176 | 150 | SetXYAtDCA(-999., -999.); |
151 | SetPxPyPzAtDCA(-999., -999., -999.); | |
1912763f | 152 | SetUsedForVtxFit(usedForVtxFit); |
dc825b15 | 153 | SetUsedForPrimVtxFit(usedForPrimVtxFit); |
df9db588 | 154 | if(covMatrix) SetCovMatrix(covMatrix); |
155 | SetPID(pid); | |
6c954176 | 156 | SetITSClusterMap(itsClusMap); |
df9db588 | 157 | } |
158 | ||
df9db588 | 159 | //______________________________________________________________________________ |
160 | AliAODTrack::~AliAODTrack() | |
161 | { | |
162 | // destructor | |
163 | delete fCovMatrix; | |
7450f8ab | 164 | delete fDetPid; |
df9db588 | 165 | } |
166 | ||
167 | ||
168 | //______________________________________________________________________________ | |
169 | AliAODTrack::AliAODTrack(const AliAODTrack& trk) : | |
4f6e22bd | 170 | AliVTrack(trk), |
f43586f0 | 171 | fRAtAbsorberEnd(trk.fRAtAbsorberEnd), |
1912763f | 172 | fChi2perNDF(trk.fChi2perNDF), |
9333290e | 173 | fChi2MatchTrigger(trk.fChi2MatchTrigger), |
6efb741f | 174 | fFlags(trk.fFlags), |
df9db588 | 175 | fLabel(trk.fLabel), |
1912763f | 176 | fITSMuonClusterMap(trk.fITSMuonClusterMap), |
9333290e | 177 | fFilterMap(trk.fFilterMap), |
d999f2e6 | 178 | fTPCClusterMap(trk.fTPCClusterMap), |
179 | fTPCSharedMap(trk.fTPCSharedMap), | |
3c01c166 | 180 | fTPCnclsF(trk.fTPCnclsF), |
02153d58 | 181 | fID(trk.fID), |
9333290e | 182 | fCharge(trk.fCharge), |
e1c744ca | 183 | fType(trk.fType), |
a7d9ab9e | 184 | fCaloIndex(trk.fCaloIndex), |
9333290e | 185 | fCovMatrix(NULL), |
7be1db84 | 186 | fDetPid(NULL), |
9333290e | 187 | fProdVertex(trk.fProdVertex) |
df9db588 | 188 | { |
189 | // Copy constructor | |
190 | ||
191 | trk.GetP(fMomentum); | |
192 | trk.GetPosition(fPosition); | |
6c954176 | 193 | SetXYAtDCA(trk.XAtDCA(), trk.YAtDCA()); |
194 | SetPxPyPzAtDCA(trk.PxAtDCA(), trk.PyAtDCA(), trk.PzAtDCA()); | |
1912763f | 195 | SetUsedForVtxFit(trk.GetUsedForVtxFit()); |
dc825b15 | 196 | SetUsedForPrimVtxFit(trk.GetUsedForPrimVtxFit()); |
5d62ce04 | 197 | if(trk.fCovMatrix) fCovMatrix=new AliAODRedCov<6>(*trk.fCovMatrix); |
7be1db84 | 198 | if(trk.fDetPid) fDetPid=new AliAODPid(*trk.fDetPid); |
df9db588 | 199 | SetPID(trk.fPID); |
df9db588 | 200 | } |
201 | ||
202 | //______________________________________________________________________________ | |
203 | AliAODTrack& AliAODTrack::operator=(const AliAODTrack& trk) | |
204 | { | |
205 | // Assignment operator | |
206 | if(this!=&trk) { | |
207 | ||
4f6e22bd | 208 | AliVTrack::operator=(trk); |
df9db588 | 209 | |
210 | trk.GetP(fMomentum); | |
211 | trk.GetPosition(fPosition); | |
212 | trk.GetPID(fPID); | |
213 | ||
6c954176 | 214 | SetXYAtDCA(trk.XAtDCA(), trk.YAtDCA()); |
215 | SetPxPyPzAtDCA(trk.PxAtDCA(), trk.PyAtDCA(), trk.PzAtDCA()); | |
216 | ||
f43586f0 | 217 | fRAtAbsorberEnd = trk.fRAtAbsorberEnd; |
218 | ||
1912763f | 219 | fChi2perNDF = trk.fChi2perNDF; |
9333290e | 220 | fChi2MatchTrigger = trk.fChi2MatchTrigger; |
df9db588 | 221 | |
6efb741f | 222 | fFlags = trk.fFlags; |
df9db588 | 223 | fLabel = trk.fLabel; |
224 | ||
9333290e | 225 | fITSMuonClusterMap = trk.fITSMuonClusterMap; |
226 | fFilterMap = trk.fFilterMap; | |
227 | ||
6efb741f | 228 | fID = trk.fID; |
229 | ||
9333290e | 230 | fCharge = trk.fCharge; |
231 | fType = trk.fType; | |
232 | ||
a7d9ab9e | 233 | fCaloIndex = trk.fCaloIndex; |
234 | ||
df9db588 | 235 | delete fCovMatrix; |
5d62ce04 | 236 | if(trk.fCovMatrix) fCovMatrix=new AliAODRedCov<6>(*trk.fCovMatrix); |
df9db588 | 237 | else fCovMatrix=NULL; |
238 | fProdVertex = trk.fProdVertex; | |
239 | ||
1912763f | 240 | SetUsedForVtxFit(trk.GetUsedForVtxFit()); |
dc825b15 | 241 | SetUsedForPrimVtxFit(trk.GetUsedForPrimVtxFit()); |
7be1db84 | 242 | |
243 | delete fDetPid; | |
244 | if(trk.fDetPid) fDetPid=new AliAODPid(*trk.fDetPid); | |
245 | else fDetPid=NULL; | |
df9db588 | 246 | } |
247 | ||
248 | return *this; | |
249 | } | |
250 | ||
4697e4fb | 251 | //______________________________________________________________________________ |
252 | Double_t AliAODTrack::M(AODTrkPID_t pid) const | |
253 | { | |
254 | // Returns the mass. | |
9861edc0 | 255 | // Masses for nuclei don't exist in the PDG tables, therefore they were put by hand. |
4697e4fb | 256 | |
257 | switch (pid) { | |
258 | ||
259 | case kElectron : | |
9861edc0 | 260 | return 0.000510999; //TDatabasePDG::Instance()->GetParticle(11/*::kElectron*/)->Mass(); |
4697e4fb | 261 | break; |
262 | ||
263 | case kMuon : | |
9861edc0 | 264 | return 0.1056584; //TDatabasePDG::Instance()->GetParticle(13/*::kMuonMinus*/)->Mass(); |
4697e4fb | 265 | break; |
266 | ||
267 | case kPion : | |
9861edc0 | 268 | return 0.13957; //TDatabasePDG::Instance()->GetParticle(211/*::kPiPlus*/)->Mass(); |
4697e4fb | 269 | break; |
270 | ||
271 | case kKaon : | |
9861edc0 | 272 | return 0.4937; //TDatabasePDG::Instance()->GetParticle(321/*::kKPlus*/)->Mass(); |
4697e4fb | 273 | break; |
274 | ||
275 | case kProton : | |
9861edc0 | 276 | return 0.9382720; //TDatabasePDG::Instance()->GetParticle(2212/*::kProton*/)->Mass(); |
4697e4fb | 277 | break; |
278 | ||
279 | case kDeuteron : | |
9861edc0 | 280 | return 1.8756; //TDatabasePDG::Instance()->GetParticle(1000010020)->Mass(); |
4697e4fb | 281 | break; |
282 | ||
283 | case kTriton : | |
9861edc0 | 284 | return 2.8089; //TDatabasePDG::Instance()->GetParticle(1000010030)->Mass(); |
4697e4fb | 285 | break; |
286 | ||
287 | case kHelium3 : | |
9861edc0 | 288 | return 2.8084; //TDatabasePDG::Instance()->GetParticle(1000020030)->Mass(); |
4697e4fb | 289 | break; |
290 | ||
291 | case kAlpha : | |
9861edc0 | 292 | return 3.7274; //TDatabasePDG::Instance()->GetParticle(1000020040)->Mass(); |
4697e4fb | 293 | break; |
294 | ||
295 | case kUnknown : | |
296 | return -999.; | |
297 | break; | |
298 | ||
299 | default : | |
300 | return -999.; | |
301 | } | |
302 | } | |
303 | ||
304 | //______________________________________________________________________________ | |
305 | Double_t AliAODTrack::E(AODTrkPID_t pid) const | |
306 | { | |
307 | // Returns the energy of the particle of a given pid. | |
308 | ||
309 | if (pid != kUnknown) { // particle was identified | |
310 | Double_t m = M(pid); | |
311 | return TMath::Sqrt(P()*P() + m*m); | |
312 | } else { // pid unknown | |
313 | return -999.; | |
314 | } | |
315 | } | |
316 | ||
317 | //______________________________________________________________________________ | |
318 | Double_t AliAODTrack::Y(AODTrkPID_t pid) const | |
319 | { | |
9861edc0 | 320 | // Returns the rapidity of a particle of a given pid. |
4697e4fb | 321 | |
322 | if (pid != kUnknown) { // particle was identified | |
323 | Double_t e = E(pid); | |
324 | Double_t pz = Pz(); | |
325 | if (e>=0 && e!=pz) { // energy was positive (e.g. not -999.) and not equal to pz | |
326 | return 0.5*TMath::Log((e+pz)/(e-pz)); | |
327 | } else { // energy not known or equal to pz | |
328 | return -999.; | |
329 | } | |
330 | } else { // pid unknown | |
331 | return -999.; | |
332 | } | |
333 | } | |
334 | ||
335 | //______________________________________________________________________________ | |
336 | Double_t AliAODTrack::Y(Double_t m) const | |
337 | { | |
9861edc0 | 338 | // Returns the rapidity of a particle of a given mass. |
4697e4fb | 339 | |
340 | if (m >= 0.) { // mass makes sense | |
341 | Double_t e = E(m); | |
342 | Double_t pz = Pz(); | |
343 | if (e>=0 && e!=pz) { // energy was positive (e.g. not -999.) and not equal to pz | |
344 | return 0.5*TMath::Log((e+pz)/(e-pz)); | |
345 | } else { // energy not known or equal to pz | |
346 | return -999.; | |
347 | } | |
348 | } else { // pid unknown | |
349 | return -999.; | |
350 | } | |
351 | } | |
352 | ||
353 | //______________________________________________________________________________ | |
354 | AliAODTrack::AODTrkPID_t AliAODTrack::GetMostProbablePID() const | |
355 | { | |
356 | // Returns the most probable PID array element. | |
357 | ||
358 | Int_t nPID = 10; | |
7ba6f91a | 359 | AODTrkPID_t loc = kUnknown; |
360 | Double_t max = 0.; | |
361 | Bool_t allTheSame = kTRUE; | |
362 | ||
363 | for (Int_t iPID = 0; iPID < nPID; iPID++) { | |
364 | if (fPID[iPID] >= max) { | |
365 | if (fPID[iPID] > max) { | |
366 | allTheSame = kFALSE; | |
367 | max = fPID[iPID]; | |
368 | loc = (AODTrkPID_t)iPID; | |
369 | } else { | |
370 | allTheSame = kTRUE; | |
4697e4fb | 371 | } |
372 | } | |
4697e4fb | 373 | } |
7ba6f91a | 374 | return allTheSame ? kUnknown : loc; |
4697e4fb | 375 | } |
376 | ||
377 | //______________________________________________________________________________ | |
378 | void AliAODTrack::ConvertAliPIDtoAODPID() | |
379 | { | |
380 | // Converts AliPID array. | |
381 | // The numbering scheme is the same for electrons, muons, pions, kaons, and protons. | |
382 | // Everything else has to be set to zero. | |
383 | ||
384 | fPID[kDeuteron] = 0.; | |
8a1418dc | 385 | fPID[kTriton] = 0.; |
386 | fPID[kHelium3] = 0.; | |
387 | fPID[kAlpha] = 0.; | |
388 | fPID[kUnknown] = 0.; | |
4697e4fb | 389 | |
390 | return; | |
391 | } | |
392 | ||
393 | ||
df9db588 | 394 | //______________________________________________________________________________ |
395 | template <class T> void AliAODTrack::SetP(const T *p, const Bool_t cartesian) | |
396 | { | |
8a1418dc | 397 | // Set the momentum |
df9db588 | 398 | |
399 | if (p) { | |
400 | if (cartesian) { | |
16b65f2a | 401 | Double_t pt2 = p[0]*p[0] + p[1]*p[1]; |
0c5f89fb | 402 | Double_t pp = TMath::Sqrt(pt2 + p[2]*p[2]); |
df9db588 | 403 | |
16b65f2a | 404 | fMomentum[0] = TMath::Sqrt(pt2); // pt |
b1a9edc8 | 405 | fMomentum[1] = (pt2 != 0.) ? TMath::Pi()+TMath::ATan2(-p[1], -p[0]) : -999; // phi |
0c5f89fb | 406 | fMomentum[2] = (pp != 0.) ? TMath::ACos(p[2] / pp) : -999.; // theta |
df9db588 | 407 | } else { |
16b65f2a | 408 | fMomentum[0] = p[0]; // pt |
df9db588 | 409 | fMomentum[1] = p[1]; // phi |
410 | fMomentum[2] = p[2]; // theta | |
411 | } | |
412 | } else { | |
413 | fMomentum[0] = -999.; | |
414 | fMomentum[1] = -999.; | |
415 | fMomentum[2] = -999.; | |
416 | } | |
417 | } | |
418 | ||
419 | //______________________________________________________________________________ | |
420 | template <class T> void AliAODTrack::SetPosition(const T *x, const Bool_t dca) | |
421 | { | |
422 | // set the position | |
423 | ||
424 | if (x) { | |
425 | if (!dca) { | |
426 | ResetBit(kIsDCA); | |
427 | ||
428 | fPosition[0] = x[0]; | |
429 | fPosition[1] = x[1]; | |
430 | fPosition[2] = x[2]; | |
431 | } else { | |
432 | SetBit(kIsDCA); | |
433 | // don't know any better yet | |
434 | fPosition[0] = -999.; | |
435 | fPosition[1] = -999.; | |
436 | fPosition[2] = -999.; | |
437 | } | |
438 | } else { | |
439 | ResetBit(kIsDCA); | |
440 | ||
441 | fPosition[0] = -999.; | |
442 | fPosition[1] = -999.; | |
443 | fPosition[2] = -999.; | |
444 | } | |
445 | } | |
446 | ||
447 | //______________________________________________________________________________ | |
448 | void AliAODTrack::SetDCA(Double_t d, Double_t z) | |
449 | { | |
450 | // set the dca | |
451 | fPosition[0] = d; | |
452 | fPosition[1] = z; | |
453 | fPosition[2] = 0.; | |
454 | SetBit(kIsDCA); | |
455 | } | |
456 | ||
457 | //______________________________________________________________________________ | |
458 | void AliAODTrack::Print(Option_t* /* option */) const | |
459 | { | |
460 | // prints information about AliAODTrack | |
461 | ||
462 | printf("Object name: %s Track type: %s\n", GetName(), GetTitle()); | |
463 | printf(" px = %f\n", Px()); | |
464 | printf(" py = %f\n", Py()); | |
465 | printf(" pz = %f\n", Pz()); | |
466 | printf(" pt = %f\n", Pt()); | |
467 | printf(" 1/pt = %f\n", OneOverPt()); | |
468 | printf(" theta = %f\n", Theta()); | |
469 | printf(" phi = %f\n", Phi()); | |
1912763f | 470 | printf(" chi2/NDF = %f\n", Chi2perNDF()); |
df9db588 | 471 | printf(" charge = %d\n", Charge()); |
df9db588 | 472 | } |
473 | ||
2200238e | 474 | //______________________________________________________________________________ |
475 | void AliAODTrack::SetMatchTrigger(Int_t matchTrig) | |
476 | { | |
477 | // Set the MUON trigger information | |
8ac4fa64 | 478 | switch(matchTrig){ |
e1c744ca | 479 | case 0: // 0 track does not match trigger |
480 | fITSMuonClusterMap=fITSMuonClusterMap&0x3fffffff; | |
481 | break; | |
482 | case 1: // 1 track match but does not pass pt cut | |
483 | fITSMuonClusterMap=(fITSMuonClusterMap&0x3fffffff)|0x40000000; | |
484 | break; | |
485 | case 2: // 2 track match Low pt cut | |
486 | fITSMuonClusterMap=(fITSMuonClusterMap&0x3fffffff)|0x80000000; | |
487 | break; | |
488 | case 3: // 3 track match High pt cut | |
489 | fITSMuonClusterMap=fITSMuonClusterMap|0xc0000000; | |
490 | break; | |
491 | default: | |
492 | fITSMuonClusterMap=fITSMuonClusterMap&0x3fffffff; | |
8ac4fa64 | 493 | AliWarning(Form("unknown case for matchTrig: %d\n",matchTrig)); |
e1c744ca | 494 | } |
495 | } | |
496 | ||
2200238e | 497 | //______________________________________________________________________________ |
498 | Bool_t AliAODTrack::HitsMuonChamber(Int_t MuonChamber, Int_t cathode) const | |
499 | { | |
500 | // return kTRUE if the track fires the given tracking or trigger chamber. | |
501 | // If the chamber is a trigger one: | |
502 | // - if cathode = 0 or 1, the track matches the corresponding cathode | |
503 | // - if cathode = -1, the track matches both cathodes | |
504 | ||
505 | if (MuonChamber < 0) return kFALSE; | |
506 | ||
507 | if (MuonChamber < 10) return TESTBIT(GetMUONClusterMap(), MuonChamber); | |
508 | ||
509 | if (MuonChamber < 14) { | |
510 | ||
511 | if (cathode < 0) return TESTBIT(GetHitsPatternInTrigCh(), 13-MuonChamber) && | |
512 | TESTBIT(GetHitsPatternInTrigCh(), 13-MuonChamber+4); | |
513 | ||
514 | if (cathode < 2) return TESTBIT(GetHitsPatternInTrigCh(), 13-MuonChamber+(1-cathode)*4); | |
515 | ||
e1c744ca | 516 | } |
2200238e | 517 | |
518 | return kFALSE; | |
e1c744ca | 519 | } |
520 | ||
2200238e | 521 | //______________________________________________________________________________ |
522 | Bool_t AliAODTrack::MatchTriggerDigits() const | |
523 | { | |
524 | // return kTRUE if the track matches a digit on both planes of at least 2 trigger chambers | |
6c954176 | 525 | |
2200238e | 526 | Int_t nMatchedChambers = 0; |
527 | for (Int_t ich=10; ich<14; ich++) if (HitsMuonChamber(ich)) nMatchedChambers++; | |
528 | ||
529 | return (nMatchedChambers >= 2); | |
e1c744ca | 530 | } |
c683ddc2 | 531 | |
6dc40b1c | 532 | //______________________________________________________________________________ |
533 | Bool_t AliAODTrack::PropagateToDCA(const AliVVertex *vtx, | |
534 | Double_t b, Double_t maxd, Double_t dz[2], Double_t covar[3]) | |
535 | { | |
536 | // compute impact parameters to the vertex vtx and their covariance matrix | |
537 | // b is the Bz, needed to propagate correctly the track to vertex | |
538 | // only the track parameters are update after the propagation (pos and mom), | |
539 | // not the covariance matrix. This is OK for propagation over short distance | |
540 | // inside the beam pipe. | |
541 | // return kFALSE is something went wrong | |
542 | ||
543 | // convert to AliExternalTrackParam | |
544 | AliExternalTrackParam etp(this); | |
545 | ||
546 | Float_t xstart = etp.GetX(); | |
547 | if(xstart>3.) { | |
548 | AliError("This method can be used only for propagation inside the beam pipe"); | |
549 | return kFALSE; | |
550 | } | |
551 | ||
552 | if(!etp.PropagateToDCA(vtx,b,maxd,dz,covar)) return kFALSE; | |
553 | ||
554 | // update track position and momentum | |
555 | Double_t mom[3]; | |
556 | etp.GetPxPyPz(mom); | |
557 | SetP(mom,kTRUE); | |
558 | etp.GetXYZ(mom); | |
559 | SetPosition(mom,kFALSE); | |
560 | ||
561 | ||
562 | return kTRUE; | |
563 | } | |
564 | ||
c8fe2783 | 565 | //______________________________________________________________________________ |
566 | Bool_t AliAODTrack::GetPxPyPz(Double_t p[3]) const | |
567 | { | |
568 | //--------------------------------------------------------------------- | |
569 | // This function returns the global track momentum components | |
570 | //--------------------------------------------------------------------- | |
571 | p[0]=Px(); p[1]=Py(); p[2]=Pz(); | |
572 | return kTRUE; | |
573 | } | |
9006fe9c | 574 | |
575 | //______________________________________________________________________________ | |
576 | Float_t AliAODTrack::GetTPCClusterInfo(Int_t nNeighbours/*=3*/, Int_t type/*=0*/, Int_t row0, Int_t row1) const | |
577 | { | |
578 | // | |
579 | // TPC cluster information | |
580 | // type 0: get fraction of found/findable clusters with neighbourhood definition | |
581 | // 1: findable clusters with neighbourhood definition | |
582 | // 2: found clusters | |
583 | // | |
584 | // definition of findable clusters: | |
585 | // a cluster is defined as findable if there is another cluster | |
586 | // within +- nNeighbours pad rows. The idea is to overcome threshold | |
587 | // effects with a very simple algorithm. | |
588 | // | |
589 | ||
590 | if (type==2) return fTPCClusterMap.CountBits(); | |
591 | ||
592 | Int_t found=0; | |
593 | Int_t findable=0; | |
594 | Int_t last=-nNeighbours; | |
595 | ||
596 | for (Int_t i=row0; i<row1; ++i){ | |
597 | //look to current row | |
598 | if (fTPCClusterMap[i]) { | |
599 | last=i; | |
600 | ++found; | |
601 | ++findable; | |
602 | continue; | |
603 | } | |
604 | //look to nNeighbours before | |
605 | if ((i-last)<=nNeighbours) { | |
606 | ++findable; | |
607 | continue; | |
608 | } | |
609 | //look to nNeighbours after | |
610 | for (Int_t j=i+1; j<i+1+nNeighbours; ++j){ | |
611 | if (fTPCClusterMap[j]){ | |
612 | ++findable; | |
613 | break; | |
614 | } | |
615 | } | |
616 | } | |
617 | if (type==1) return findable; | |
618 | ||
619 | if (type==0){ | |
620 | Float_t fraction=0; | |
621 | if (findable>0) | |
622 | fraction=(Float_t)found/(Float_t)findable; | |
623 | else | |
624 | fraction=0; | |
625 | return fraction; | |
626 | } | |
627 | return 0; // undefined type - default value | |
628 | } | |
fd21ec8d | 629 | |
630 | //______________________________________________________________________________ | |
631 | Double_t AliAODTrack::GetTRDslice(Int_t plane, Int_t slice) const { | |
632 | // | |
633 | // return TRD Pid information | |
634 | // | |
635 | if (!fDetPid) return -1; | |
636 | Double32_t *trdSlices=fDetPid->GetTRDsignal(); | |
637 | if (!trdSlices) return -1; | |
638 | if ((plane<0) || (plane>=kTRDnPlanes)) { | |
639 | return -1.; | |
640 | } | |
641 | ||
99e9d5ec | 642 | Int_t ns=fDetPid->GetTRDnSlices()/kTRDnPlanes; |
fd21ec8d | 643 | if ((slice<-1) || (slice>=ns)) { |
644 | return -1.; | |
645 | } | |
646 | ||
647 | if(slice>=0) return trdSlices[plane*ns + slice]; | |
648 | ||
649 | // return average of the dEdx measurements | |
650 | Double_t q=0.; Double32_t *s = &trdSlices[plane*ns]; | |
651 | for (Int_t i=0; i<ns; i++, s++) if((*s)>0.) q+=(*s); | |
652 | return q/ns; | |
653 | } | |
654 | ||
99e9d5ec | 655 | //______________________________________________________________________________ |
656 | UChar_t AliAODTrack::GetTRDntrackletsPID() const{ | |
657 | // | |
658 | // return number of tracklets calculated from the slices | |
659 | // | |
660 | if(!fDetPid) return -1; | |
661 | ||
662 | Int_t ntracklets = 0, // Number of tracklets / track | |
663 | nSlicesTracklet = fDetPid->GetTRDnSlices()/kTRDnPlanes, // Number of slices per tracklet | |
664 | nSlicesNonZero = 0; // Number of slices containing a dE/dx measurement | |
665 | for(Int_t ily = 0; ily < kTRDnPlanes; ily++){ | |
666 | // a tracklet is found if it has at least one slice containing a dE/dx measurement | |
667 | nSlicesNonZero = 0; | |
668 | for(Int_t islice = 0; islice < nSlicesTracklet; islice++){ | |
669 | if(fDetPid->GetTRDsignal()[nSlicesTracklet * ily + islice] > 0.01) nSlicesNonZero++; | |
670 | } | |
671 | if(nSlicesNonZero) ntracklets++; | |
672 | } | |
673 | return ntracklets; | |
674 | } | |
675 | ||
fd21ec8d | 676 | //______________________________________________________________________________ |
677 | Double_t AliAODTrack::GetTRDmomentum(Int_t plane, Double_t */*sp*/) const | |
678 | { | |
679 | //Returns momentum estimation | |
680 | // in TRD layer "plane". | |
681 | ||
682 | if (!fDetPid) return -1; | |
683 | Float_t *trdMomentum=fDetPid->GetTRDmomentum(); | |
684 | ||
685 | if (!trdMomentum) { | |
686 | return -1.; | |
687 | } | |
688 | if ((plane<0) || (plane>=kTRDnPlanes)) { | |
689 | return -1.; | |
690 | } | |
691 | ||
692 | return trdMomentum[plane]; | |
693 | } | |
76e6ee6a | 694 | |
695 | //_______________________________________________________________________ | |
a512bf97 | 696 | Int_t AliAODTrack::GetTOFBunchCrossing(Double_t b) const |
76e6ee6a | 697 | { |
698 | // Returns the number of bunch crossings after trigger (assuming 25ns spacing) | |
76e6ee6a | 699 | const double kSpacing = 25e3; // min interbanch spacing |
700 | const double kShift = 0; | |
3f2db92f | 701 | Int_t bcid = kTOFBCNA; // defualt one |
a512bf97 | 702 | if (!IsOn(kTOFout) || !IsOn(kESDpid)) return bcid; // no info |
703 | // | |
704 | double tdif = GetTOFsignal(); | |
705 | if (IsOn(kTIME)) { // integrated time info is there | |
706 | int pid = (int)GetMostProbablePID(); | |
707 | double ttimes[10]; | |
708 | GetIntegratedTimes(ttimes); | |
709 | tdif -= ttimes[pid]; | |
710 | } | |
711 | else { // assume integrated time info from TOF radius and momentum | |
712 | const double kRTOF = 385.; | |
713 | const double kCSpeed = 3.e-2; // cm/ps | |
714 | double p = P(); | |
715 | if (p<0.001) p = 1.0; | |
716 | double m = M(); | |
717 | double path = kRTOF; // mean TOF radius | |
718 | if (TMath::Abs(b)>kAlmost0) { // account for curvature | |
719 | double curv = Pt()/(b*kB2C); | |
720 | if (curv>kAlmost0) { | |
721 | double tgl = Pz()/Pt(); | |
722 | path = 2./curv*TMath::ASin(kRTOF*curv/2.)*TMath::Sqrt(1.+tgl*tgl); | |
723 | } | |
724 | } | |
725 | tdif -= path/kCSpeed*TMath::Sqrt(1.+m*m/(p*p)); | |
726 | } | |
76e6ee6a | 727 | bcid = TMath::Nint((tdif - kShift)/kSpacing); |
728 | return bcid; | |
729 | } |