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