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29bf19f2 | 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 | **************************************************************************/ | |
15 | ||
4ec8e76d | 16 | /* $Id: AliPIDResponse.cxx 46193 2010-12-21 09:00:14Z wiechula $ */ |
29bf19f2 | 17 | |
18 | //----------------------------------------------------------------- | |
4ec8e76d | 19 | // Base class for handling the pid response // |
20 | // functions of all detectors // | |
21 | // and give access to the nsigmas // | |
22 | // // | |
23 | // Origin: Jens Wiechula, Uni Tuebingen, jens.wiechula@cern.ch // | |
29bf19f2 | 24 | //----------------------------------------------------------------- |
25 | ||
4ec8e76d | 26 | #include <TList.h> |
27 | #include <TObjArray.h> | |
28 | #include <TPRegexp.h> | |
29 | #include <TF1.h> | |
30 | #include <TSpline.h> | |
31 | #include <TFile.h> | |
32 | ||
33 | #include <AliVEvent.h> | |
fd21ec8d | 34 | #include <AliVTrack.h> |
4ec8e76d | 35 | #include <AliLog.h> |
36 | #include <AliPID.h> | |
ea235c90 | 37 | #include <AliOADBContainer.h> |
b2138b40 | 38 | #include <AliTRDPIDParams.h> |
ea235c90 | 39 | #include <AliTRDPIDReference.h> |
29bf19f2 | 40 | |
41 | #include "AliPIDResponse.h" | |
42 | ||
43 | ClassImp(AliPIDResponse); | |
44 | ||
4ec8e76d | 45 | AliPIDResponse::AliPIDResponse(Bool_t isMC/*=kFALSE*/) : |
46 | TNamed("PIDResponse","PIDResponse"), | |
47 | fITSResponse(isMC), | |
48 | fTPCResponse(), | |
49 | fTRDResponse(), | |
50 | fTOFResponse(), | |
e96b9916 | 51 | fEMCALResponse(), |
fd21ec8d | 52 | fRange(5.), |
53 | fITSPIDmethod(kITSTruncMean), | |
4ec8e76d | 54 | fIsMC(isMC), |
55 | fOADBPath(), | |
56 | fBeamType("PP"), | |
57 | fLHCperiod(), | |
58 | fMCperiodTPC(), | |
fd21ec8d | 59 | fMCperiodUser(), |
ea235c90 | 60 | fCurrentFile(), |
4ec8e76d | 61 | fRecoPass(0), |
fd21ec8d | 62 | fRecoPassUser(-1), |
4ec8e76d | 63 | fRun(0), |
64 | fOldRun(0), | |
65 | fArrPidResponseMaster(0x0), | |
66 | fResolutionCorrection(0x0), | |
ea235c90 | 67 | fTRDPIDParams(0x0), |
68 | fTRDPIDReference(0x0), | |
4ec8e76d | 69 | fTOFTimeZeroType(kBest_T0), |
e96b9916 | 70 | fTOFres(100.), |
b2138b40 | 71 | fEMCALPIDParams(0x0), |
e96b9916 | 72 | fCurrentEvent(0x0) |
4ec8e76d | 73 | { |
74 | // | |
75 | // default ctor | |
76 | // | |
77 | AliLog::SetClassDebugLevel("AliPIDResponse",10); | |
78 | AliLog::SetClassDebugLevel("AliESDpid",10); | |
79 | AliLog::SetClassDebugLevel("AliAODpidUtil",10); | |
ea235c90 | 80 | |
81 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); | |
4ec8e76d | 82 | } |
83 | ||
84 | //______________________________________________________________________________ | |
85 | AliPIDResponse::~AliPIDResponse() | |
86 | { | |
87 | // | |
88 | // dtor | |
89 | // | |
90 | delete fArrPidResponseMaster; | |
ea235c90 | 91 | delete fTRDPIDParams; |
92 | delete fTRDPIDReference; | |
4ec8e76d | 93 | } |
94 | ||
95 | //______________________________________________________________________________ | |
96 | AliPIDResponse::AliPIDResponse(const AliPIDResponse &other) : | |
97 | TNamed(other), | |
98 | fITSResponse(other.fITSResponse), | |
99 | fTPCResponse(other.fTPCResponse), | |
100 | fTRDResponse(other.fTRDResponse), | |
101 | fTOFResponse(other.fTOFResponse), | |
e96b9916 | 102 | fEMCALResponse(other.fEMCALResponse), |
fd21ec8d | 103 | fRange(other.fRange), |
104 | fITSPIDmethod(other.fITSPIDmethod), | |
4ec8e76d | 105 | fIsMC(other.fIsMC), |
106 | fOADBPath(other.fOADBPath), | |
107 | fBeamType("PP"), | |
108 | fLHCperiod(), | |
109 | fMCperiodTPC(), | |
fd21ec8d | 110 | fMCperiodUser(other.fMCperiodUser), |
ea235c90 | 111 | fCurrentFile(), |
4ec8e76d | 112 | fRecoPass(0), |
fd21ec8d | 113 | fRecoPassUser(other.fRecoPassUser), |
4ec8e76d | 114 | fRun(0), |
115 | fOldRun(0), | |
116 | fArrPidResponseMaster(0x0), | |
117 | fResolutionCorrection(0x0), | |
ea235c90 | 118 | fTRDPIDParams(0x0), |
119 | fTRDPIDReference(0x0), | |
4ec8e76d | 120 | fTOFTimeZeroType(AliPIDResponse::kBest_T0), |
e96b9916 | 121 | fTOFres(100.), |
b2138b40 | 122 | fEMCALPIDParams(0x0), |
e96b9916 | 123 | fCurrentEvent(0x0) |
4ec8e76d | 124 | { |
125 | // | |
126 | // copy ctor | |
127 | // | |
ea235c90 | 128 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); |
4ec8e76d | 129 | } |
130 | ||
131 | //______________________________________________________________________________ | |
132 | AliPIDResponse& AliPIDResponse::operator=(const AliPIDResponse &other) | |
133 | { | |
134 | // | |
135 | // copy ctor | |
136 | // | |
137 | if(this!=&other) { | |
138 | delete fArrPidResponseMaster; | |
139 | TNamed::operator=(other); | |
140 | fITSResponse=other.fITSResponse; | |
141 | fTPCResponse=other.fTPCResponse; | |
142 | fTRDResponse=other.fTRDResponse; | |
143 | fTOFResponse=other.fTOFResponse; | |
e96b9916 | 144 | fEMCALResponse=other.fEMCALResponse; |
fd21ec8d | 145 | fRange=other.fRange; |
146 | fITSPIDmethod=other.fITSPIDmethod; | |
4ec8e76d | 147 | fOADBPath=other.fOADBPath; |
148 | fIsMC=other.fIsMC; | |
149 | fBeamType="PP"; | |
150 | fLHCperiod=""; | |
151 | fMCperiodTPC=""; | |
fd21ec8d | 152 | fMCperiodUser=other.fMCperiodUser; |
ea235c90 | 153 | fCurrentFile=""; |
4ec8e76d | 154 | fRecoPass=0; |
fd21ec8d | 155 | fRecoPassUser=other.fRecoPassUser; |
4ec8e76d | 156 | fRun=0; |
157 | fOldRun=0; | |
158 | fArrPidResponseMaster=0x0; | |
159 | fResolutionCorrection=0x0; | |
ea235c90 | 160 | fTRDPIDParams=0x0; |
161 | fTRDPIDReference=0x0; | |
b2138b40 | 162 | fEMCALPIDParams=0x0; |
ea235c90 | 163 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); |
4ec8e76d | 164 | fTOFTimeZeroType=AliPIDResponse::kBest_T0; |
165 | fTOFres=100.; | |
e96b9916 | 166 | fCurrentEvent=other.fCurrentEvent; |
4ec8e76d | 167 | } |
168 | return *this; | |
169 | } | |
170 | ||
fd21ec8d | 171 | //______________________________________________________________________________ |
172 | Float_t AliPIDResponse::NumberOfSigmas(EDetCode detCode, const AliVParticle *track, AliPID::EParticleType type) const | |
173 | { | |
174 | // | |
175 | // NumberOfSigmas for 'detCode' | |
176 | // | |
177 | ||
178 | switch (detCode){ | |
179 | case kDetITS: return NumberOfSigmasITS(track, type); break; | |
180 | case kDetTPC: return NumberOfSigmasTPC(track, type); break; | |
181 | case kDetTOF: return NumberOfSigmasTOF(track, type); break; | |
182 | // case kDetTRD: return ComputeTRDProbability(track, type); break; | |
183 | // case kDetPHOS: return ComputePHOSProbability(track, type); break; | |
e96b9916 | 184 | // case kDetEMCAL: return NumberOfSigmasEMCAL(track, type); break; |
fd21ec8d | 185 | // case kDetHMPID: return ComputeHMPIDProbability(track, type); break; |
186 | default: return -999.; | |
187 | } | |
188 | ||
189 | } | |
190 | ||
e96b9916 | 191 | //______________________________________________________________________________ |
192 | Float_t AliPIDResponse::NumberOfSigmasEMCAL(const AliVTrack *track, AliPID::EParticleType type) const { | |
193 | ||
194 | AliVCluster *matchedClus = NULL; | |
195 | ||
196 | Double_t mom = -1.; | |
197 | Double_t pt = -1.; | |
198 | Double_t EovP = -1.; | |
199 | Double_t fClsE = -1.; | |
200 | ||
201 | Int_t nMatchClus = -1; | |
202 | Int_t charge = 0; | |
203 | ||
204 | // Track matching | |
205 | nMatchClus = track->GetEMCALcluster(); | |
206 | if(nMatchClus > -1){ | |
207 | ||
208 | mom = track->P(); | |
209 | pt = track->Pt(); | |
210 | charge = track->Charge(); | |
211 | ||
212 | matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus); | |
213 | ||
214 | if(matchedClus){ | |
215 | ||
216 | // matched cluster is EMCAL | |
217 | if(matchedClus->IsEMCAL()){ | |
218 | ||
219 | fClsE = matchedClus->E(); | |
220 | EovP = fClsE/mom; | |
221 | ||
222 | ||
223 | // NSigma value really meaningful only for electrons! | |
224 | return fEMCALResponse.GetNumberOfSigmas(pt,EovP,type,charge); | |
225 | } | |
226 | } | |
227 | } | |
228 | ||
229 | return -999; | |
230 | ||
231 | } | |
232 | ||
fd21ec8d | 233 | //______________________________________________________________________________ |
234 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePIDProbability (EDetCode detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const | |
235 | { | |
236 | // | |
237 | // Compute PID response of 'detCode' | |
238 | // | |
239 | ||
240 | switch (detCode){ | |
241 | case kDetITS: return ComputeITSProbability(track, nSpecies, p); break; | |
242 | case kDetTPC: return ComputeTPCProbability(track, nSpecies, p); break; | |
243 | case kDetTOF: return ComputeTOFProbability(track, nSpecies, p); break; | |
244 | case kDetTRD: return ComputeTRDProbability(track, nSpecies, p); break; | |
245 | case kDetPHOS: return ComputePHOSProbability(track, nSpecies, p); break; | |
246 | case kDetEMCAL: return ComputeEMCALProbability(track, nSpecies, p); break; | |
247 | case kDetHMPID: return ComputeHMPIDProbability(track, nSpecies, p); break; | |
248 | default: return kDetNoSignal; | |
249 | } | |
250 | } | |
251 | ||
252 | //______________________________________________________________________________ | |
253 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeITSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const | |
254 | { | |
255 | // | |
256 | // Compute PID response for the ITS | |
257 | // | |
258 | ||
259 | // set flat distribution (no decision) | |
260 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
261 | ||
262 | if ((track->GetStatus()&AliVTrack::kITSin)==0 && | |
263 | (track->GetStatus()&AliVTrack::kITSout)==0) return kDetNoSignal; | |
264 | ||
265 | Double_t mom=track->P(); | |
266 | Double_t dedx=track->GetITSsignal(); | |
267 | Bool_t isSA=kTRUE; | |
268 | Double_t momITS=mom; | |
269 | ULong_t trStatus=track->GetStatus(); | |
270 | if(trStatus&AliVTrack::kTPCin) isSA=kFALSE; | |
271 | UChar_t clumap=track->GetITSClusterMap(); | |
272 | Int_t nPointsForPid=0; | |
273 | for(Int_t i=2; i<6; i++){ | |
274 | if(clumap&(1<<i)) ++nPointsForPid; | |
275 | } | |
276 | ||
277 | if(nPointsForPid<3) { // track not to be used for combined PID purposes | |
278 | // track->ResetStatus(AliVTrack::kITSpid); | |
279 | return kDetNoSignal; | |
280 | } | |
281 | ||
282 | Bool_t mismatch=kTRUE/*, heavy=kTRUE*/; | |
283 | for (Int_t j=0; j<AliPID::kSPECIES; j++) { | |
284 | Double_t mass=AliPID::ParticleMass(j);//GeV/c^2 | |
285 | Double_t bethe=fITSResponse.Bethe(momITS,mass); | |
286 | Double_t sigma=fITSResponse.GetResolution(bethe,nPointsForPid,isSA); | |
287 | if (TMath::Abs(dedx-bethe) > fRange*sigma) { | |
288 | p[j]=TMath::Exp(-0.5*fRange*fRange)/sigma; | |
289 | } else { | |
290 | p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma; | |
291 | mismatch=kFALSE; | |
292 | } | |
293 | ||
294 | // Check for particles heavier than (AliPID::kSPECIES - 1) | |
295 | // if (dedx < (bethe + fRange*sigma)) heavy=kFALSE; | |
296 | ||
297 | } | |
298 | ||
299 | if (mismatch){ | |
300 | for (Int_t j=0; j<AliPID::kSPECIES; j++) p[j]=1./AliPID::kSPECIES; | |
301 | return kDetNoSignal; | |
302 | } | |
303 | ||
304 | ||
305 | return kDetPidOk; | |
306 | } | |
307 | //______________________________________________________________________________ | |
308 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const | |
309 | { | |
310 | // | |
311 | // Compute PID response for the TPC | |
312 | // | |
313 | ||
314 | // set flat distribution (no decision) | |
315 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
316 | ||
317 | // check quality of the track | |
318 | if ( (track->GetStatus()&AliVTrack::kTPCin )==0 && (track->GetStatus()&AliVTrack::kTPCout)==0 ) return kDetNoSignal; | |
319 | ||
320 | Double_t mom = track->GetTPCmomentum(); | |
321 | ||
322 | Double_t dedx=track->GetTPCsignal(); | |
323 | Bool_t mismatch=kTRUE/*, heavy=kTRUE*/; | |
324 | ||
325 | for (Int_t j=0; j<AliPID::kSPECIES; j++) { | |
326 | AliPID::EParticleType type=AliPID::EParticleType(j); | |
327 | Double_t bethe=fTPCResponse.GetExpectedSignal(mom,type); | |
328 | Double_t sigma=fTPCResponse.GetExpectedSigma(mom,track->GetTPCsignalN(),type); | |
329 | if (TMath::Abs(dedx-bethe) > fRange*sigma) { | |
330 | p[j]=TMath::Exp(-0.5*fRange*fRange)/sigma; | |
331 | } else { | |
332 | p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma; | |
333 | mismatch=kFALSE; | |
334 | } | |
335 | ||
336 | // TODO: Light nuclei, also in TPC pid response | |
337 | ||
338 | // Check for particles heavier than (AliPID::kSPECIES - 1) | |
339 | // if (dedx < (bethe + fRange*sigma)) heavy=kFALSE; | |
340 | ||
341 | } | |
342 | ||
343 | if (mismatch){ | |
344 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
345 | return kDetNoSignal; | |
346 | } | |
347 | ||
348 | return kDetPidOk; | |
349 | } | |
350 | //______________________________________________________________________________ | |
351 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const | |
352 | { | |
353 | // | |
354 | // Compute PID response for the | |
355 | // | |
356 | ||
357 | // set flat distribution (no decision) | |
358 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
359 | ||
360 | if ((track->GetStatus()&AliVTrack::kTOFout)==0) return kDetNoSignal; | |
361 | if ((track->GetStatus()&AliVTrack::kTIME)==0) return kDetNoSignal; | |
362 | ||
363 | Double_t time[AliPID::kSPECIESN]; | |
364 | track->GetIntegratedTimes(time); | |
365 | ||
366 | Double_t sigma[AliPID::kSPECIES]; | |
367 | for (Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++) { | |
368 | sigma[iPart] = fTOFResponse.GetExpectedSigma(track->P(),time[iPart],AliPID::ParticleMass(iPart)); | |
369 | } | |
370 | ||
371 | Bool_t mismatch = kTRUE/*, heavy = kTRUE*/; | |
372 | for (Int_t j=0; j<AliPID::kSPECIES; j++) { | |
373 | AliPID::EParticleType type=AliPID::EParticleType(j); | |
374 | Double_t nsigmas=NumberOfSigmasTOF(track,type); | |
375 | ||
376 | Double_t sig = sigma[j]; | |
377 | if (TMath::Abs(nsigmas) > (fRange+2)) { | |
378 | p[j] = TMath::Exp(-0.5*(fRange+2)*(fRange+2))/sig; | |
379 | } else | |
380 | p[j] = TMath::Exp(-0.5*nsigmas*nsigmas)/sig; | |
381 | ||
382 | if (TMath::Abs(nsigmas)<5.){ | |
383 | Double_t nsigmasTPC=NumberOfSigmasTPC(track,type); | |
384 | if (TMath::Abs(nsigmasTPC)<5.) mismatch=kFALSE; | |
385 | } | |
386 | } | |
387 | ||
388 | if (mismatch){ | |
389 | return kDetMismatch; | |
390 | } | |
391 | ||
392 | // TODO: Light nuclei | |
393 | ||
394 | return kDetPidOk; | |
395 | } | |
396 | //______________________________________________________________________________ | |
ea235c90 | 397 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
fd21ec8d | 398 | { |
399 | // | |
400 | // Compute PID response for the | |
401 | // | |
402 | ||
403 | // set flat distribution (no decision) | |
404 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
ea235c90 | 405 | if((track->GetStatus()&AliVTrack::kTRDout)==0) return kDetNoSignal; |
406 | ||
407 | Float_t mom[6]; | |
408 | Double_t dedx[48]; // Allocate space for the maximum number of TRD slices | |
409 | Int_t nslices = fTRDslicesForPID[1] - fTRDslicesForPID[0] + 1; | |
410 | AliDebug(1, Form("First Slice: %d, Last Slice: %d, Number of slices: %d", fTRDslicesForPID[0], fTRDslicesForPID[1], nslices)); | |
411 | for(UInt_t ilayer = 0; ilayer < 6; ilayer++){ | |
412 | mom[ilayer] = track->GetTRDmomentum(ilayer); | |
413 | for(UInt_t islice = fTRDslicesForPID[0]; islice <= fTRDslicesForPID[1]; islice++){ | |
414 | dedx[ilayer*nslices+islice-fTRDslicesForPID[0]] = track->GetTRDslice(ilayer, islice); | |
415 | } | |
416 | } | |
417 | fTRDResponse.GetResponse(nslices, dedx, mom, p); | |
418 | return kDetPidOk; | |
fd21ec8d | 419 | } |
420 | //______________________________________________________________________________ | |
e96b9916 | 421 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeEMCALProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
fd21ec8d | 422 | { |
423 | // | |
424 | // Compute PID response for the EMCAL | |
425 | // | |
426 | ||
e96b9916 | 427 | AliVCluster *matchedClus = NULL; |
428 | ||
429 | Double_t mom = -1.; | |
430 | Double_t pt = -1.; | |
431 | Double_t EovP = -1.; | |
432 | Double_t fClsE = -1.; | |
433 | ||
434 | Int_t nMatchClus = -1; | |
435 | Int_t charge = 0; | |
436 | ||
437 | // Track matching | |
438 | nMatchClus = track->GetEMCALcluster(); | |
439 | ||
440 | if(nMatchClus > -1){ | |
441 | ||
442 | mom = track->P(); | |
443 | pt = track->Pt(); | |
444 | charge = track->Charge(); | |
445 | ||
446 | matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus); | |
447 | ||
448 | if(matchedClus){ | |
449 | ||
450 | // matched cluster is EMCAL | |
451 | if(matchedClus->IsEMCAL()){ | |
452 | ||
453 | fClsE = matchedClus->E(); | |
454 | EovP = fClsE/mom; | |
455 | ||
456 | ||
457 | // compute the probabilities | |
458 | if( 999 != fEMCALResponse.ComputeEMCALProbability(pt,EovP,charge,p)){ | |
459 | ||
460 | // in case everything is OK | |
461 | return kDetPidOk; | |
462 | ||
463 | } | |
464 | } | |
465 | } | |
466 | } | |
467 | ||
468 | // in all other cases set flat distribution (no decision) | |
fd21ec8d | 469 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
470 | return kDetNoSignal; | |
e96b9916 | 471 | |
fd21ec8d | 472 | } |
473 | //______________________________________________________________________________ | |
474 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePHOSProbability (const AliVTrack */*track*/, Int_t nSpecies, Double_t p[]) const | |
475 | { | |
476 | // | |
477 | // Compute PID response for the PHOS | |
478 | // | |
479 | ||
480 | // set flat distribution (no decision) | |
481 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
482 | return kDetNoSignal; | |
483 | } | |
484 | //______________________________________________________________________________ | |
ea235c90 | 485 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
fd21ec8d | 486 | { |
487 | // | |
488 | // Compute PID response for the HMPID | |
489 | // | |
490 | ||
491 | // set flat distribution (no decision) | |
492 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
ea235c90 | 493 | if((track->GetStatus()&AliVTrack::kHMPIDpid)==0) return kDetNoSignal; |
494 | ||
495 | track->GetHMPIDpid(p); | |
496 | ||
497 | return kDetPidOk; | |
fd21ec8d | 498 | } |
499 | ||
4ec8e76d | 500 | //______________________________________________________________________________ |
501 | void AliPIDResponse::InitialiseEvent(AliVEvent *event, Int_t pass) | |
502 | { | |
503 | // | |
504 | // Apply settings for the current event | |
505 | // | |
506 | fRecoPass=pass; | |
e96b9916 | 507 | |
508 | fCurrentEvent=0x0; | |
4ec8e76d | 509 | if (!event) return; |
e96b9916 | 510 | fCurrentEvent=event; |
4ec8e76d | 511 | fRun=event->GetRunNumber(); |
512 | ||
513 | if (fRun!=fOldRun){ | |
514 | ExecNewRun(); | |
515 | fOldRun=fRun; | |
516 | } | |
517 | ||
518 | //TPC resolution parametrisation PbPb | |
519 | if ( fResolutionCorrection ){ | |
520 | Double_t corrSigma=fResolutionCorrection->Eval(GetTPCMultiplicityBin(event)); | |
521 | fTPCResponse.SetSigma(3.79301e-03*corrSigma, 2.21280e+04); | |
522 | } | |
523 | ||
524 | //TOF resolution | |
525 | SetTOFResponse(event, (AliPIDResponse::EStartTimeType_t)fTOFTimeZeroType); | |
526 | ||
527 | } | |
528 | ||
529 | //______________________________________________________________________________ | |
530 | void AliPIDResponse::ExecNewRun() | |
531 | { | |
532 | // | |
533 | // Things to Execute upon a new run | |
534 | // | |
535 | SetRecoInfo(); | |
536 | ||
537 | SetITSParametrisation(); | |
538 | ||
539 | SetTPCPidResponseMaster(); | |
540 | SetTPCParametrisation(); | |
53d016dc | 541 | |
542 | SetTRDPidResponseMaster(); | |
543 | InitializeTRDResponse(); | |
b2138b40 | 544 | |
545 | SetEMCALPidResponseMaster(); | |
546 | InitializeEMCALResponse(); | |
4ec8e76d | 547 | |
548 | fTOFResponse.SetTimeResolution(fTOFres); | |
549 | } | |
550 | ||
551 | //_____________________________________________________ | |
552 | Double_t AliPIDResponse::GetTPCMultiplicityBin(const AliVEvent * const event) | |
553 | { | |
554 | // | |
555 | // Get TPC multiplicity in bins of 150 | |
556 | // | |
557 | ||
558 | const AliVVertex* vertexTPC = event->GetPrimaryVertex(); | |
559 | Double_t tpcMulti=0.; | |
560 | if(vertexTPC){ | |
561 | Double_t vertexContribTPC=vertexTPC->GetNContributors(); | |
562 | tpcMulti=vertexContribTPC/150.; | |
563 | if (tpcMulti>20.) tpcMulti=20.; | |
564 | } | |
565 | ||
566 | return tpcMulti; | |
567 | } | |
568 | ||
569 | //______________________________________________________________________________ | |
570 | void AliPIDResponse::SetRecoInfo() | |
571 | { | |
572 | // | |
573 | // Set reconstruction information | |
574 | // | |
575 | ||
576 | //reset information | |
577 | fLHCperiod=""; | |
578 | fMCperiodTPC=""; | |
579 | ||
580 | fBeamType=""; | |
581 | ||
582 | fBeamType="PP"; | |
583 | ||
53d016dc | 584 | TPRegexp reg(".*(LHC11[a-z]+[0-9]+[a-z_]*)/.*"); |
4ec8e76d | 585 | //find the period by run number (UGLY, but not stored in ESD and AOD... ) |
586 | if (fRun>=114737&&fRun<=117223) { fLHCperiod="LHC10B"; fMCperiodTPC="LHC10D1"; } | |
587 | else if (fRun>=118503&&fRun<=121040) { fLHCperiod="LHC10C"; fMCperiodTPC="LHC10D1"; } | |
588 | else if (fRun>=122195&&fRun<=126437) { fLHCperiod="LHC10D"; fMCperiodTPC="LHC10F6A"; } | |
99e9d5ec | 589 | else if (fRun>=127710&&fRun<=130850) { fLHCperiod="LHC10E"; fMCperiodTPC="LHC10F6A"; } |
4ec8e76d | 590 | else if (fRun>=133004&&fRun<=135029) { fLHCperiod="LHC10F"; fMCperiodTPC="LHC10F6A"; } |
591 | else if (fRun>=135654&&fRun<=136377) { fLHCperiod="LHC10G"; fMCperiodTPC="LHC10F6A"; } | |
ea235c90 | 592 | else if (fRun>=136851&&fRun<=139517) { |
593 | fLHCperiod="LHC10H"; | |
594 | fMCperiodTPC="LHC10H8"; | |
595 | if (reg.MatchB(fCurrentFile)) fMCperiodTPC="LHC11A10"; | |
596 | fBeamType="PBPB"; | |
597 | } | |
3077a03d | 598 | else if (fRun>=139699&&fRun<=146860) { fLHCperiod="LHC11A"; fMCperiodTPC="LHC10F6A"; } |
2e97a211 | 599 | //TODO: periods 11B, 11C are not yet treated assume 11d for the moment |
600 | else if (fRun>=148531&&fRun<=155384) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; } | |
601 | else if (fRun>=156477&&fRun<=159635) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; } | |
3077a03d | 602 | else if (fRun>=166529) { |
603 | fLHCperiod="LHC11H"; | |
604 | fMCperiodTPC="LHC11A10"; | |
605 | fBeamType="PBPB"; | |
606 | } | |
607 | ||
80ab5635 | 608 | |
609 | //exception new pp MC productions from 2011 | |
610 | if (fBeamType=="PP" && reg.MatchB(fCurrentFile)) fMCperiodTPC="LHC11B2"; | |
4ec8e76d | 611 | } |
612 | ||
613 | //______________________________________________________________________________ | |
614 | void AliPIDResponse::SetITSParametrisation() | |
615 | { | |
616 | // | |
617 | // Set the ITS parametrisation | |
618 | // | |
619 | } | |
620 | ||
621 | //______________________________________________________________________________ | |
622 | void AliPIDResponse::SetTPCPidResponseMaster() | |
623 | { | |
624 | // | |
625 | // Load the TPC pid response functions from the OADB | |
626 | // | |
09b50a42 | 627 | //don't load twice for the moment |
628 | if (fArrPidResponseMaster) return; | |
629 | ||
630 | ||
4ec8e76d | 631 | //reset the PID response functions |
632 | delete fArrPidResponseMaster; | |
633 | fArrPidResponseMaster=0x0; | |
634 | ||
635 | TString fileName(Form("%s/COMMON/PID/data/TPCPIDResponse.root", fOADBPath.Data())); | |
636 | ||
ea235c90 | 637 | TFile *f=TFile::Open(fileName.Data()); |
638 | if (f && f->IsOpen() && !f->IsZombie()){ | |
639 | fArrPidResponseMaster=dynamic_cast<TObjArray*>(f->Get("TPCPIDResponse")); | |
4ec8e76d | 640 | } |
ea235c90 | 641 | delete f; |
4ec8e76d | 642 | |
643 | if (!fArrPidResponseMaster){ | |
644 | AliFatal(Form("Could not retrieve the TPC pid response from: %s",fileName.Data())); | |
645 | return; | |
646 | } | |
647 | fArrPidResponseMaster->SetOwner(); | |
648 | } | |
649 | ||
650 | //______________________________________________________________________________ | |
651 | void AliPIDResponse::SetTPCParametrisation() | |
652 | { | |
653 | // | |
654 | // Change BB parametrisation for current run | |
655 | // | |
656 | ||
657 | if (fLHCperiod.IsNull()) { | |
658 | AliFatal("No period set, not changing parametrisation"); | |
659 | return; | |
660 | } | |
661 | ||
662 | // | |
663 | // Set default parametrisations for data and MC | |
664 | // | |
665 | ||
666 | //data type | |
667 | TString datatype="DATA"; | |
668 | //in case of mc fRecoPass is per default 1 | |
669 | if (fIsMC) { | |
670 | datatype="MC"; | |
671 | fRecoPass=1; | |
672 | } | |
673 | ||
674 | // | |
675 | //reset old splines | |
676 | // | |
677 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ | |
678 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,0x0); | |
679 | } | |
680 | ||
681 | // | |
682 | //set the new PID splines | |
683 | // | |
684 | TString period=fLHCperiod; | |
685 | if (fArrPidResponseMaster){ | |
686 | TObject *grAll=0x0; | |
687 | //for MC don't use period information | |
688 | // if (fIsMC) period="[A-Z0-9]*"; | |
689 | //for MC use MC period information | |
690 | if (fIsMC) period=fMCperiodTPC; | |
691 | //pattern for the default entry (valid for all particles) | |
692 | TPRegexp reg(Form("TSPLINE3_%s_([A-Z]*)_%s_PASS%d_%s_MEAN",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); | |
693 | ||
694 | //loop over entries and filter them | |
695 | for (Int_t iresp=0; iresp<fArrPidResponseMaster->GetEntriesFast();++iresp){ | |
696 | TObject *responseFunction=fArrPidResponseMaster->At(iresp); | |
697 | if (responseFunction==0x0) continue; | |
698 | TString responseName=responseFunction->GetName(); | |
699 | ||
700 | if (!reg.MatchB(responseName)) continue; | |
701 | ||
702 | TObjArray *arr=reg.MatchS(responseName); | |
703 | TString particleName=arr->At(1)->GetName(); | |
704 | delete arr; | |
705 | if (particleName.IsNull()) continue; | |
706 | if (particleName=="ALL") grAll=responseFunction; | |
707 | else { | |
708 | //find particle id | |
709 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ | |
710 | TString particle=AliPID::ParticleName(ispec); | |
711 | particle.ToUpper(); | |
712 | if ( particle == particleName ){ | |
713 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,responseFunction); | |
714 | fTPCResponse.SetUseDatabase(kTRUE); | |
715 | AliInfo(Form("Adding graph: %d - %s",ispec,responseFunction->GetName())); | |
716 | break; | |
717 | } | |
718 | } | |
719 | } | |
720 | } | |
721 | ||
722 | //set default response function to all particles which don't have a specific one | |
723 | if (grAll){ | |
724 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ | |
725 | if (!fTPCResponse.GetResponseFunction((AliPID::EParticleType)ispec)){ | |
726 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,grAll); | |
727 | AliInfo(Form("Adding graph: %d - %s",ispec,grAll->GetName())); | |
728 | } | |
729 | } | |
730 | } | |
731 | } | |
732 | ||
733 | // | |
734 | // Setup resolution parametrisation | |
735 | // | |
736 | ||
737 | //default | |
738 | fTPCResponse.SetSigma(3.79301e-03, 2.21280e+04); | |
739 | ||
740 | if (fRun>=122195){ | |
741 | fTPCResponse.SetSigma(2.30176e-02, 5.60422e+02); | |
742 | } | |
23425eb2 | 743 | if (fArrPidResponseMaster) |
4ec8e76d | 744 | fResolutionCorrection=(TF1*)fArrPidResponseMaster->FindObject(Form("TF1_%s_ALL_%s_PASS%d_%s_SIGMA",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); |
745 | ||
746 | if (fResolutionCorrection) AliInfo(Form("Setting multiplicity correction function: %s",fResolutionCorrection->GetName())); | |
747 | } | |
748 | ||
ea235c90 | 749 | //______________________________________________________________________________ |
750 | void AliPIDResponse::SetTRDPidResponseMaster() | |
751 | { | |
752 | // | |
753 | // Load the TRD pid params and references from the OADB | |
754 | // | |
755 | if(fTRDPIDParams) return; | |
53d016dc | 756 | AliOADBContainer contParams("contParams"); |
757 | ||
59a8e853 | 758 | Int_t statusPars = contParams.InitFromFile(Form("%s/COMMON/PID/data/TRDPIDParams.root", fOADBPath.Data()), "AliTRDPIDParams"); |
759 | if(statusPars){ | |
760 | AliError("Failed initializing PID Params from OADB"); | |
761 | } else { | |
762 | AliInfo(Form("Loading TRD Params from %s/COMMON/PID/data/TRDPIDParams.root", fOADBPath.Data())); | |
b2138b40 | 763 | fTRDPIDParams = dynamic_cast<AliTRDPIDParams *>(contParams.GetObject(fRun)); |
59a8e853 | 764 | if(!fTRDPIDParams){ |
765 | AliError(Form("TRD Params not found in run %d", fRun)); | |
766 | } | |
767 | } | |
ea235c90 | 768 | |
53d016dc | 769 | AliOADBContainer contRefs("contRefs"); |
59a8e853 | 770 | Int_t statusRefs = contRefs.InitFromFile(Form("%s/COMMON/PID/data/TRDPIDReferenceLQ1D.root", fOADBPath.Data()), "AliTRDPIDReference"); |
771 | if(statusRefs){ | |
772 | AliInfo("Failed Loading References for TRD"); | |
773 | } else { | |
774 | AliInfo(Form("Loading TRD References from %s/COMMON/PID/data/TRDPIDReferenceLQ1D.root", fOADBPath.Data())); | |
775 | fTRDPIDReference = dynamic_cast<AliTRDPIDReference *>(contRefs.GetObject(fRun)); | |
776 | if(!fTRDPIDReference){ | |
777 | AliError(Form("TRD References not found in OADB Container for run %d", fRun)); | |
778 | } | |
779 | } | |
ea235c90 | 780 | } |
781 | ||
782 | //______________________________________________________________________________ | |
783 | void AliPIDResponse::InitializeTRDResponse(){ | |
784 | // | |
785 | // Set PID Params and references to the TRD PID response | |
786 | // | |
787 | fTRDResponse.SetPIDParams(fTRDPIDParams); | |
788 | fTRDResponse.Load(fTRDPIDReference); | |
789 | if(fLHCperiod == "LHC10b" || fLHCperiod == "LHC10c" || fLHCperiod == "LHC10d" || fLHCperiod == "LHC10e"){ | |
790 | fTRDslicesForPID[0] = 0; | |
791 | fTRDslicesForPID[1] = 7; | |
792 | } | |
793 | } | |
794 | ||
795 | //_________________________________________________________________________ | |
796 | Bool_t AliPIDResponse::IdentifiedAsElectronTRD(const AliVTrack *vtrack, Double_t efficiencyLevel) const { | |
797 | // | |
798 | // Check whether track is identified as electron under a given electron efficiency hypothesis | |
799 | // | |
800 | Double_t probs[AliPID::kSPECIES]; | |
801 | ComputeTRDProbability(vtrack, AliPID::kSPECIES, probs); | |
802 | ||
99e9d5ec | 803 | Int_t ntracklets = vtrack->GetTRDntrackletsPID(); |
804 | // Take mean of the TRD momenta in the given tracklets | |
805 | Float_t p = 0, trdmomenta[AliVTrack::kTRDnPlanes]; | |
806 | Int_t nmomenta = 0; | |
ea235c90 | 807 | for(Int_t iPl=0;iPl<AliVTrack::kTRDnPlanes;iPl++){ |
808 | if(vtrack->GetTRDmomentum(iPl) > 0.){ | |
99e9d5ec | 809 | trdmomenta[nmomenta++] = vtrack->GetTRDmomentum(iPl); |
ea235c90 | 810 | } |
811 | } | |
99e9d5ec | 812 | p = TMath::Mean(nmomenta, trdmomenta); |
ea235c90 | 813 | |
814 | return fTRDResponse.IdentifiedAsElectron(ntracklets, probs, p, efficiencyLevel); | |
815 | } | |
816 | ||
b2138b40 | 817 | //______________________________________________________________________________ |
818 | void AliPIDResponse::SetEMCALPidResponseMaster() | |
819 | { | |
820 | // | |
821 | // Load the EMCAL pid response functions from the OADB | |
822 | // | |
823 | TObjArray* fEMCALPIDParamsRun = NULL; | |
824 | TObjArray* fEMCALPIDParamsPass = NULL; | |
825 | ||
826 | if(fEMCALPIDParams) return; | |
827 | AliOADBContainer contParams("contParams"); | |
828 | ||
829 | Int_t statusPars = contParams.InitFromFile(Form("%s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data()), "AliEMCALPIDParams"); | |
830 | if(statusPars){ | |
831 | AliError("Failed initializing PID Params from OADB"); | |
832 | } | |
833 | else { | |
834 | AliInfo(Form("Loading EMCAL Params from %s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data())); | |
835 | ||
836 | fEMCALPIDParamsRun = dynamic_cast<TObjArray *>(contParams.GetObject(fRun)); | |
837 | if(fEMCALPIDParamsRun) fEMCALPIDParamsPass = dynamic_cast<TObjArray *>(fEMCALPIDParamsRun->FindObject(Form("pass%d",fRecoPass))); | |
838 | if(fEMCALPIDParamsPass) fEMCALPIDParams = dynamic_cast<TObjArray *>(fEMCALPIDParamsPass->FindObject(Form("EMCALPIDParams_Particles"))); | |
839 | ||
840 | if(!fEMCALPIDParams){ | |
841 | AliError(Form("EMCAL Params not found in run %d pass %d", fRun, fRecoPass)); | |
842 | AliInfo("Will take the standard LHC11a pass2 instead ..."); | |
843 | ||
844 | fEMCALPIDParamsRun = dynamic_cast<TObjArray *>(contParams.GetObject(144871)); | |
845 | if(fEMCALPIDParamsRun) fEMCALPIDParamsPass = dynamic_cast<TObjArray *>(fEMCALPIDParamsRun->FindObject(Form("pass%d",2))); | |
846 | if(fEMCALPIDParamsPass) fEMCALPIDParams = dynamic_cast<TObjArray *>(fEMCALPIDParamsPass->FindObject(Form("EMCALPIDParams_Particles"))); | |
847 | ||
848 | if(!fEMCALPIDParams){ | |
849 | AliError(Form("DEFAULT EMCAL Params (LHC11a pass2) not found in file %s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data())); | |
850 | } | |
851 | } | |
852 | } | |
853 | } | |
854 | ||
855 | //______________________________________________________________________________ | |
856 | void AliPIDResponse::InitializeEMCALResponse(){ | |
857 | // | |
858 | // Set PID Params to the EMCAL PID response | |
859 | // | |
860 | fEMCALResponse.SetPIDParams(fEMCALPIDParams); | |
861 | ||
862 | } |