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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 | ||
16 | /* $Id: AliPIDResponse.cxx 46193 2010-12-21 09:00:14Z wiechula $ */ | |
17 | ||
18 | //----------------------------------------------------------------- | |
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 // | |
24 | //----------------------------------------------------------------- | |
25 | ||
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> | |
34 | #include <AliVTrack.h> | |
35 | #include <AliLog.h> | |
36 | #include <AliPID.h> | |
37 | #include <AliOADBContainer.h> | |
38 | #include <AliTRDPIDParams.h> | |
39 | #include <AliTRDPIDReference.h> | |
40 | #include <AliTOFPIDParams.h> | |
41 | ||
42 | #include "AliPIDResponse.h" | |
43 | ||
44 | #include "AliCentrality.h" | |
45 | ||
46 | ClassImp(AliPIDResponse); | |
47 | ||
48 | AliPIDResponse::AliPIDResponse(Bool_t isMC/*=kFALSE*/) : | |
49 | TNamed("PIDResponse","PIDResponse"), | |
50 | fITSResponse(isMC), | |
51 | fTPCResponse(), | |
52 | fTRDResponse(), | |
53 | fTOFResponse(), | |
54 | fEMCALResponse(), | |
55 | fRange(5.), | |
56 | fITSPIDmethod(kITSTruncMean), | |
57 | fIsMC(isMC), | |
58 | fOADBPath(), | |
59 | fBeamType("PP"), | |
60 | fLHCperiod(), | |
61 | fMCperiodTPC(), | |
62 | fMCperiodUser(), | |
63 | fCurrentFile(), | |
64 | fRecoPass(0), | |
65 | fRecoPassUser(-1), | |
66 | fRun(0), | |
67 | fOldRun(0), | |
68 | fArrPidResponseMaster(0x0), | |
69 | fResolutionCorrection(0x0), | |
70 | fTRDPIDParams(0x0), | |
71 | fTRDPIDReference(0x0), | |
72 | fTOFtail(1.1), | |
73 | fTOFPIDParams(0x0), | |
74 | fEMCALPIDParams(0x0), | |
75 | fCurrentEvent(0x0), | |
76 | fCurrCentrality(0.0) | |
77 | { | |
78 | // | |
79 | // default ctor | |
80 | // | |
81 | AliLog::SetClassDebugLevel("AliPIDResponse",10); | |
82 | AliLog::SetClassDebugLevel("AliESDpid",10); | |
83 | AliLog::SetClassDebugLevel("AliAODpidUtil",10); | |
84 | ||
85 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); | |
86 | } | |
87 | ||
88 | //______________________________________________________________________________ | |
89 | AliPIDResponse::~AliPIDResponse() | |
90 | { | |
91 | // | |
92 | // dtor | |
93 | // | |
94 | delete fArrPidResponseMaster; | |
95 | delete fTRDPIDParams; | |
96 | delete fTRDPIDReference; | |
97 | if (fTOFPIDParams) delete fTOFPIDParams; | |
98 | } | |
99 | ||
100 | //______________________________________________________________________________ | |
101 | AliPIDResponse::AliPIDResponse(const AliPIDResponse &other) : | |
102 | TNamed(other), | |
103 | fITSResponse(other.fITSResponse), | |
104 | fTPCResponse(other.fTPCResponse), | |
105 | fTRDResponse(other.fTRDResponse), | |
106 | fTOFResponse(other.fTOFResponse), | |
107 | fEMCALResponse(other.fEMCALResponse), | |
108 | fRange(other.fRange), | |
109 | fITSPIDmethod(other.fITSPIDmethod), | |
110 | fIsMC(other.fIsMC), | |
111 | fOADBPath(other.fOADBPath), | |
112 | fBeamType("PP"), | |
113 | fLHCperiod(), | |
114 | fMCperiodTPC(), | |
115 | fMCperiodUser(other.fMCperiodUser), | |
116 | fCurrentFile(), | |
117 | fRecoPass(0), | |
118 | fRecoPassUser(other.fRecoPassUser), | |
119 | fRun(0), | |
120 | fOldRun(0), | |
121 | fArrPidResponseMaster(0x0), | |
122 | fResolutionCorrection(0x0), | |
123 | fTRDPIDParams(0x0), | |
124 | fTRDPIDReference(0x0), | |
125 | fTOFtail(1.1), | |
126 | fTOFPIDParams(0x0), | |
127 | fEMCALPIDParams(0x0), | |
128 | fCurrentEvent(0x0), | |
129 | fCurrCentrality(0.0) | |
130 | { | |
131 | // | |
132 | // copy ctor | |
133 | // | |
134 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); | |
135 | } | |
136 | ||
137 | //______________________________________________________________________________ | |
138 | AliPIDResponse& AliPIDResponse::operator=(const AliPIDResponse &other) | |
139 | { | |
140 | // | |
141 | // copy ctor | |
142 | // | |
143 | if(this!=&other) { | |
144 | delete fArrPidResponseMaster; | |
145 | TNamed::operator=(other); | |
146 | fITSResponse=other.fITSResponse; | |
147 | fTPCResponse=other.fTPCResponse; | |
148 | fTRDResponse=other.fTRDResponse; | |
149 | fTOFResponse=other.fTOFResponse; | |
150 | fEMCALResponse=other.fEMCALResponse; | |
151 | fRange=other.fRange; | |
152 | fITSPIDmethod=other.fITSPIDmethod; | |
153 | fOADBPath=other.fOADBPath; | |
154 | fIsMC=other.fIsMC; | |
155 | fBeamType="PP"; | |
156 | fLHCperiod=""; | |
157 | fMCperiodTPC=""; | |
158 | fMCperiodUser=other.fMCperiodUser; | |
159 | fCurrentFile=""; | |
160 | fRecoPass=0; | |
161 | fRecoPassUser=other.fRecoPassUser; | |
162 | fRun=0; | |
163 | fOldRun=0; | |
164 | fArrPidResponseMaster=0x0; | |
165 | fResolutionCorrection=0x0; | |
166 | fTRDPIDParams=0x0; | |
167 | fTRDPIDReference=0x0; | |
168 | fEMCALPIDParams=0x0; | |
169 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); | |
170 | fTOFtail=1.1; | |
171 | fTOFPIDParams=0x0; | |
172 | fCurrentEvent=other.fCurrentEvent; | |
173 | } | |
174 | return *this; | |
175 | } | |
176 | ||
177 | //______________________________________________________________________________ | |
178 | Float_t AliPIDResponse::NumberOfSigmas(EDetCode detCode, const AliVParticle *track, AliPID::EParticleType type) const | |
179 | { | |
180 | // | |
181 | // NumberOfSigmas for 'detCode' | |
182 | // | |
183 | ||
184 | switch (detCode){ | |
185 | case kDetITS: return NumberOfSigmasITS(track, type); break; | |
186 | case kDetTPC: return NumberOfSigmasTPC(track, type); break; | |
187 | case kDetTOF: return NumberOfSigmasTOF(track, type); break; | |
188 | // case kDetTRD: return ComputeTRDProbability(track, type); break; | |
189 | // case kDetPHOS: return ComputePHOSProbability(track, type); break; | |
190 | // case kDetEMCAL: return NumberOfSigmasEMCAL(track, type); break; | |
191 | // case kDetHMPID: return ComputeHMPIDProbability(track, type); break; | |
192 | default: return -999.; | |
193 | } | |
194 | ||
195 | } | |
196 | ||
197 | //______________________________________________________________________________ | |
198 | Float_t AliPIDResponse::NumberOfSigmasEMCAL(const AliVTrack *track, AliPID::EParticleType type) const { | |
199 | ||
200 | AliVCluster *matchedClus = NULL; | |
201 | ||
202 | Double_t mom = -1.; | |
203 | Double_t pt = -1.; | |
204 | Double_t EovP = -1.; | |
205 | Double_t fClsE = -1.; | |
206 | ||
207 | Int_t nMatchClus = -1; | |
208 | Int_t charge = 0; | |
209 | ||
210 | // Track matching | |
211 | nMatchClus = track->GetEMCALcluster(); | |
212 | if(nMatchClus > -1){ | |
213 | ||
214 | mom = track->P(); | |
215 | pt = track->Pt(); | |
216 | charge = track->Charge(); | |
217 | ||
218 | matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus); | |
219 | ||
220 | if(matchedClus){ | |
221 | ||
222 | // matched cluster is EMCAL | |
223 | if(matchedClus->IsEMCAL()){ | |
224 | ||
225 | fClsE = matchedClus->E(); | |
226 | EovP = fClsE/mom; | |
227 | ||
228 | ||
229 | // NSigma value really meaningful only for electrons! | |
230 | return fEMCALResponse.GetNumberOfSigmas(pt,EovP,type,charge); | |
231 | } | |
232 | } | |
233 | } | |
234 | ||
235 | return -999; | |
236 | ||
237 | } | |
238 | ||
239 | //______________________________________________________________________________ | |
240 | Float_t AliPIDResponse::NumberOfSigmasEMCAL(const AliVTrack *track, AliPID::EParticleType type, Double_t &eop, Double_t showershape[4]) const { | |
241 | ||
242 | AliVCluster *matchedClus = NULL; | |
243 | ||
244 | Double_t mom = -1.; | |
245 | Double_t pt = -1.; | |
246 | Double_t EovP = -1.; | |
247 | Double_t fClsE = -1.; | |
248 | ||
249 | Int_t nMatchClus = -1; | |
250 | Int_t charge = 0; | |
251 | ||
252 | // Track matching | |
253 | nMatchClus = track->GetEMCALcluster(); | |
254 | if(nMatchClus > -1){ | |
255 | ||
256 | mom = track->P(); | |
257 | pt = track->Pt(); | |
258 | charge = track->Charge(); | |
259 | ||
260 | matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus); | |
261 | ||
262 | if(matchedClus){ | |
263 | ||
264 | // matched cluster is EMCAL | |
265 | if(matchedClus->IsEMCAL()){ | |
266 | ||
267 | fClsE = matchedClus->E(); | |
268 | EovP = fClsE/mom; | |
269 | ||
270 | // fill used EMCAL variables here | |
271 | eop = EovP; // E/p | |
272 | showershape[0] = matchedClus->GetNCells(); // number of cells in cluster | |
273 | showershape[1] = matchedClus->GetM02(); // long axis | |
274 | showershape[2] = matchedClus->GetM20(); // short axis | |
275 | showershape[3] = matchedClus->GetDispersion(); // dispersion | |
276 | ||
277 | // NSigma value really meaningful only for electrons! | |
278 | return fEMCALResponse.GetNumberOfSigmas(pt,EovP,type,charge); | |
279 | } | |
280 | } | |
281 | } | |
282 | return -999; | |
283 | } | |
284 | ||
285 | ||
286 | //______________________________________________________________________________ | |
287 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePIDProbability (EDetCode detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const | |
288 | { | |
289 | // | |
290 | // Compute PID response of 'detCode' | |
291 | // | |
292 | ||
293 | switch (detCode){ | |
294 | case kDetITS: return ComputeITSProbability(track, nSpecies, p); break; | |
295 | case kDetTPC: return ComputeTPCProbability(track, nSpecies, p); break; | |
296 | case kDetTOF: return ComputeTOFProbability(track, nSpecies, p); break; | |
297 | case kDetTRD: return ComputeTRDProbability(track, nSpecies, p); break; | |
298 | case kDetPHOS: return ComputePHOSProbability(track, nSpecies, p); break; | |
299 | case kDetEMCAL: return ComputeEMCALProbability(track, nSpecies, p); break; | |
300 | case kDetHMPID: return ComputeHMPIDProbability(track, nSpecies, p); break; | |
301 | default: return kDetNoSignal; | |
302 | } | |
303 | } | |
304 | ||
305 | //______________________________________________________________________________ | |
306 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeITSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const | |
307 | { | |
308 | // | |
309 | // Compute PID response for the ITS | |
310 | // | |
311 | ||
312 | // set flat distribution (no decision) | |
313 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
314 | ||
315 | if ((track->GetStatus()&AliVTrack::kITSin)==0 && | |
316 | (track->GetStatus()&AliVTrack::kITSout)==0) return kDetNoSignal; | |
317 | ||
318 | Double_t mom=track->P(); | |
319 | Double_t dedx=track->GetITSsignal(); | |
320 | Bool_t isSA=kTRUE; | |
321 | Double_t momITS=mom; | |
322 | ULong_t trStatus=track->GetStatus(); | |
323 | if(trStatus&AliVTrack::kTPCin) isSA=kFALSE; | |
324 | UChar_t clumap=track->GetITSClusterMap(); | |
325 | Int_t nPointsForPid=0; | |
326 | for(Int_t i=2; i<6; i++){ | |
327 | if(clumap&(1<<i)) ++nPointsForPid; | |
328 | } | |
329 | ||
330 | if(nPointsForPid<3) { // track not to be used for combined PID purposes | |
331 | // track->ResetStatus(AliVTrack::kITSpid); | |
332 | return kDetNoSignal; | |
333 | } | |
334 | ||
335 | Bool_t mismatch=kTRUE/*, heavy=kTRUE*/; | |
336 | for (Int_t j=0; j<AliPID::kSPECIES; j++) { | |
337 | Double_t mass=AliPID::ParticleMass(j);//GeV/c^2 | |
338 | Double_t bethe=fITSResponse.Bethe(momITS,mass); | |
339 | Double_t sigma=fITSResponse.GetResolution(bethe,nPointsForPid,isSA); | |
340 | if (TMath::Abs(dedx-bethe) > fRange*sigma) { | |
341 | p[j]=TMath::Exp(-0.5*fRange*fRange)/sigma; | |
342 | } else { | |
343 | p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma; | |
344 | mismatch=kFALSE; | |
345 | } | |
346 | ||
347 | // Check for particles heavier than (AliPID::kSPECIES - 1) | |
348 | // if (dedx < (bethe + fRange*sigma)) heavy=kFALSE; | |
349 | ||
350 | } | |
351 | ||
352 | if (mismatch){ | |
353 | for (Int_t j=0; j<AliPID::kSPECIES; j++) p[j]=1./AliPID::kSPECIES; | |
354 | return kDetNoSignal; | |
355 | } | |
356 | ||
357 | ||
358 | return kDetPidOk; | |
359 | } | |
360 | //______________________________________________________________________________ | |
361 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const | |
362 | { | |
363 | // | |
364 | // Compute PID response for the TPC | |
365 | // | |
366 | ||
367 | // set flat distribution (no decision) | |
368 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
369 | ||
370 | // check quality of the track | |
371 | if ( (track->GetStatus()&AliVTrack::kTPCin )==0 && (track->GetStatus()&AliVTrack::kTPCout)==0 ) return kDetNoSignal; | |
372 | ||
373 | Double_t mom = track->GetTPCmomentum(); | |
374 | ||
375 | Double_t dedx=track->GetTPCsignal(); | |
376 | Bool_t mismatch=kTRUE/*, heavy=kTRUE*/; | |
377 | ||
378 | for (Int_t j=0; j<AliPID::kSPECIES; j++) { | |
379 | AliPID::EParticleType type=AliPID::EParticleType(j); | |
380 | Double_t bethe=fTPCResponse.GetExpectedSignal(mom,type); | |
381 | Double_t sigma=fTPCResponse.GetExpectedSigma(mom,track->GetTPCsignalN(),type); | |
382 | if (TMath::Abs(dedx-bethe) > fRange*sigma) { | |
383 | p[j]=TMath::Exp(-0.5*fRange*fRange)/sigma; | |
384 | } else { | |
385 | p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma; | |
386 | mismatch=kFALSE; | |
387 | } | |
388 | ||
389 | // TODO: Light nuclei, also in TPC pid response | |
390 | ||
391 | // Check for particles heavier than (AliPID::kSPECIES - 1) | |
392 | // if (dedx < (bethe + fRange*sigma)) heavy=kFALSE; | |
393 | ||
394 | } | |
395 | ||
396 | if (mismatch){ | |
397 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
398 | return kDetNoSignal; | |
399 | } | |
400 | ||
401 | return kDetPidOk; | |
402 | } | |
403 | //______________________________________________________________________________ | |
404 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const | |
405 | { | |
406 | // | |
407 | // Compute PID response for the | |
408 | // | |
409 | ||
410 | Double_t meanCorrFactor = 0.11/fTOFtail; // Correction factor on the mean because of the tail (should be ~ 0.1 with tail = 1.1) | |
411 | ||
412 | // set flat distribution (no decision) | |
413 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
414 | ||
415 | if ((track->GetStatus()&AliVTrack::kTOFout)==0) return kDetNoSignal; | |
416 | if ((track->GetStatus()&AliVTrack::kTIME)==0) return kDetNoSignal; | |
417 | ||
418 | Double_t time[AliPID::kSPECIESN]; | |
419 | track->GetIntegratedTimes(time); | |
420 | ||
421 | Double_t sigma[AliPID::kSPECIES]; | |
422 | for (Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++) { | |
423 | sigma[iPart] = fTOFResponse.GetExpectedSigma(track->P(),time[iPart],AliPID::ParticleMass(iPart)); | |
424 | } | |
425 | ||
426 | Bool_t mismatch = kTRUE/*, heavy = kTRUE*/; | |
427 | for (Int_t j=0; j<AliPID::kSPECIES; j++) { | |
428 | AliPID::EParticleType type=AliPID::EParticleType(j); | |
429 | Double_t nsigmas=NumberOfSigmasTOF(track,type) + meanCorrFactor; | |
430 | ||
431 | Double_t sig = sigma[j]; | |
432 | if (TMath::Abs(nsigmas) > (fRange+2)) { | |
433 | if(nsigmas < fTOFtail) | |
434 | p[j] = TMath::Exp(-0.5*(fRange+2)*(fRange+2))/sig; | |
435 | else | |
436 | p[j] = TMath::Exp(-(fRange+2 - fTOFtail*0.5)*fTOFtail)/sig; | |
437 | } else{ | |
438 | if(nsigmas < fTOFtail) | |
439 | p[j] = TMath::Exp(-0.5*nsigmas*nsigmas)/sig; | |
440 | else | |
441 | p[j] = TMath::Exp(-(nsigmas - fTOFtail*0.5)*fTOFtail)/sig; | |
442 | } | |
443 | ||
444 | /* OLD Gaussian shape | |
445 | if (TMath::Abs(nsigmas) > (fRange+2)) { | |
446 | p[j] = TMath::Exp(-0.5*(fRange+2)*(fRange+2))/sig; | |
447 | } else | |
448 | p[j] = TMath::Exp(-0.5*nsigmas*nsigmas)/sig; | |
449 | */ | |
450 | ||
451 | if (TMath::Abs(nsigmas)<5.){ | |
452 | Double_t nsigmasTPC=NumberOfSigmasTPC(track,type); | |
453 | if (TMath::Abs(nsigmasTPC)<5.) mismatch=kFALSE; | |
454 | } | |
455 | } | |
456 | ||
457 | if (mismatch){ | |
458 | return kDetMismatch; | |
459 | } | |
460 | ||
461 | // TODO: Light nuclei | |
462 | ||
463 | return kDetPidOk; | |
464 | } | |
465 | //______________________________________________________________________________ | |
466 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const | |
467 | { | |
468 | // | |
469 | // Compute PID response for the | |
470 | // | |
471 | ||
472 | // set flat distribution (no decision) | |
473 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
474 | if((track->GetStatus()&AliVTrack::kTRDout)==0) return kDetNoSignal; | |
475 | ||
476 | Float_t mom[6]; | |
477 | Double_t dedx[48]; // Allocate space for the maximum number of TRD slices | |
478 | Int_t nslices = fTRDslicesForPID[1] - fTRDslicesForPID[0] + 1; | |
479 | AliDebug(1, Form("First Slice: %d, Last Slice: %d, Number of slices: %d", fTRDslicesForPID[0], fTRDslicesForPID[1], nslices)); | |
480 | for(UInt_t ilayer = 0; ilayer < 6; ilayer++){ | |
481 | mom[ilayer] = track->GetTRDmomentum(ilayer); | |
482 | for(UInt_t islice = fTRDslicesForPID[0]; islice <= fTRDslicesForPID[1]; islice++){ | |
483 | dedx[ilayer*nslices+islice-fTRDslicesForPID[0]] = track->GetTRDslice(ilayer, islice); | |
484 | } | |
485 | } | |
486 | fTRDResponse.GetResponse(nslices, dedx, mom, p); | |
487 | return kDetPidOk; | |
488 | } | |
489 | //______________________________________________________________________________ | |
490 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeEMCALProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const | |
491 | { | |
492 | // | |
493 | // Compute PID response for the EMCAL | |
494 | // | |
495 | ||
496 | AliVCluster *matchedClus = NULL; | |
497 | ||
498 | Double_t mom = -1.; | |
499 | Double_t pt = -1.; | |
500 | Double_t EovP = -1.; | |
501 | Double_t fClsE = -1.; | |
502 | ||
503 | Int_t nMatchClus = -1; | |
504 | Int_t charge = 0; | |
505 | ||
506 | // Track matching | |
507 | nMatchClus = track->GetEMCALcluster(); | |
508 | ||
509 | if(nMatchClus > -1){ | |
510 | ||
511 | mom = track->P(); | |
512 | pt = track->Pt(); | |
513 | charge = track->Charge(); | |
514 | ||
515 | matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus); | |
516 | ||
517 | if(matchedClus){ | |
518 | ||
519 | // matched cluster is EMCAL | |
520 | if(matchedClus->IsEMCAL()){ | |
521 | ||
522 | fClsE = matchedClus->E(); | |
523 | EovP = fClsE/mom; | |
524 | ||
525 | ||
526 | // compute the probabilities | |
527 | if( 999 != fEMCALResponse.ComputeEMCALProbability(pt,EovP,charge,p)){ | |
528 | ||
529 | // in case everything is OK | |
530 | return kDetPidOk; | |
531 | ||
532 | } | |
533 | } | |
534 | } | |
535 | } | |
536 | ||
537 | // in all other cases set flat distribution (no decision) | |
538 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
539 | return kDetNoSignal; | |
540 | ||
541 | } | |
542 | //______________________________________________________________________________ | |
543 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePHOSProbability (const AliVTrack */*track*/, Int_t nSpecies, Double_t p[]) const | |
544 | { | |
545 | // | |
546 | // Compute PID response for the PHOS | |
547 | // | |
548 | ||
549 | // set flat distribution (no decision) | |
550 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
551 | return kDetNoSignal; | |
552 | } | |
553 | //______________________________________________________________________________ | |
554 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const | |
555 | { | |
556 | // | |
557 | // Compute PID response for the HMPID | |
558 | // | |
559 | ||
560 | // set flat distribution (no decision) | |
561 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; | |
562 | if((track->GetStatus()&AliVTrack::kHMPIDpid)==0) return kDetNoSignal; | |
563 | ||
564 | track->GetHMPIDpid(p); | |
565 | ||
566 | return kDetPidOk; | |
567 | } | |
568 | ||
569 | //______________________________________________________________________________ | |
570 | void AliPIDResponse::InitialiseEvent(AliVEvent *event, Int_t pass) | |
571 | { | |
572 | // | |
573 | // Apply settings for the current event | |
574 | // | |
575 | fRecoPass=pass; | |
576 | ||
577 | fCurrentEvent=0x0; | |
578 | if (!event) return; | |
579 | fCurrentEvent=event; | |
580 | fRun=event->GetRunNumber(); | |
581 | ||
582 | if (fRun!=fOldRun){ | |
583 | ExecNewRun(); | |
584 | fOldRun=fRun; | |
585 | } | |
586 | ||
587 | //TPC resolution parametrisation PbPb | |
588 | if ( fResolutionCorrection ){ | |
589 | Double_t corrSigma=fResolutionCorrection->Eval(GetTPCMultiplicityBin(event)); | |
590 | fTPCResponse.SetSigma(3.79301e-03*corrSigma, 2.21280e+04); | |
591 | } | |
592 | ||
593 | //TOF resolution | |
594 | SetTOFResponse(event, (AliPIDResponse::EStartTimeType_t)fTOFPIDParams->GetStartTimeMethod()); | |
595 | ||
596 | ||
597 | // Get and set centrality | |
598 | AliCentrality *centrality = event->GetCentrality(); | |
599 | if(centrality){ | |
600 | fCurrCentrality = centrality->GetCentralityPercentile("V0M"); | |
601 | } | |
602 | else{ | |
603 | fCurrCentrality = -1; | |
604 | } | |
605 | } | |
606 | ||
607 | //______________________________________________________________________________ | |
608 | void AliPIDResponse::ExecNewRun() | |
609 | { | |
610 | // | |
611 | // Things to Execute upon a new run | |
612 | // | |
613 | SetRecoInfo(); | |
614 | ||
615 | SetITSParametrisation(); | |
616 | ||
617 | SetTPCPidResponseMaster(); | |
618 | SetTPCParametrisation(); | |
619 | ||
620 | SetTRDPidResponseMaster(); | |
621 | InitializeTRDResponse(); | |
622 | ||
623 | SetEMCALPidResponseMaster(); | |
624 | InitializeEMCALResponse(); | |
625 | ||
626 | SetTOFPidResponseMaster(); | |
627 | InitializeTOFResponse(); | |
628 | } | |
629 | ||
630 | //_____________________________________________________ | |
631 | Double_t AliPIDResponse::GetTPCMultiplicityBin(const AliVEvent * const event) | |
632 | { | |
633 | // | |
634 | // Get TPC multiplicity in bins of 150 | |
635 | // | |
636 | ||
637 | const AliVVertex* vertexTPC = event->GetPrimaryVertex(); | |
638 | Double_t tpcMulti=0.; | |
639 | if(vertexTPC){ | |
640 | Double_t vertexContribTPC=vertexTPC->GetNContributors(); | |
641 | tpcMulti=vertexContribTPC/150.; | |
642 | if (tpcMulti>20.) tpcMulti=20.; | |
643 | } | |
644 | ||
645 | return tpcMulti; | |
646 | } | |
647 | ||
648 | //______________________________________________________________________________ | |
649 | void AliPIDResponse::SetRecoInfo() | |
650 | { | |
651 | // | |
652 | // Set reconstruction information | |
653 | // | |
654 | ||
655 | //reset information | |
656 | fLHCperiod=""; | |
657 | fMCperiodTPC=""; | |
658 | ||
659 | fBeamType=""; | |
660 | ||
661 | fBeamType="PP"; | |
662 | ||
663 | TPRegexp reg(".*(LHC11[a-z]+[0-9]+[a-z_]*)/.*"); | |
664 | //find the period by run number (UGLY, but not stored in ESD and AOD... ) | |
665 | if (fRun>=114737&&fRun<=117223) { fLHCperiod="LHC10B"; fMCperiodTPC="LHC10D1"; } | |
666 | else if (fRun>=118503&&fRun<=121040) { fLHCperiod="LHC10C"; fMCperiodTPC="LHC10D1"; } | |
667 | else if (fRun>=122195&&fRun<=126437) { fLHCperiod="LHC10D"; fMCperiodTPC="LHC10F6A"; } | |
668 | else if (fRun>=127710&&fRun<=130850) { fLHCperiod="LHC10E"; fMCperiodTPC="LHC10F6A"; } | |
669 | else if (fRun>=133004&&fRun<=135029) { fLHCperiod="LHC10F"; fMCperiodTPC="LHC10F6A"; } | |
670 | else if (fRun>=135654&&fRun<=136377) { fLHCperiod="LHC10G"; fMCperiodTPC="LHC10F6A"; } | |
671 | else if (fRun>=136851&&fRun<=139517) { | |
672 | fLHCperiod="LHC10H"; | |
673 | fMCperiodTPC="LHC10H8"; | |
674 | if (reg.MatchB(fCurrentFile)) fMCperiodTPC="LHC11A10"; | |
675 | fBeamType="PBPB"; | |
676 | } | |
677 | else if (fRun>=139699&&fRun<=146860) { fLHCperiod="LHC11A"; fMCperiodTPC="LHC10F6A"; } | |
678 | //TODO: periods 11B, 11C are not yet treated assume 11d for the moment | |
679 | else if (fRun>=148531&&fRun<=155384) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; } | |
680 | else if (fRun>=156477&&fRun<=159635) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; } | |
681 | else if (fRun>=166529) { | |
682 | fLHCperiod="LHC11H"; | |
683 | fMCperiodTPC="LHC11A10"; | |
684 | fBeamType="PBPB"; | |
685 | } | |
686 | ||
687 | ||
688 | //exception new pp MC productions from 2011 | |
689 | if (fBeamType=="PP" && reg.MatchB(fCurrentFile)) fMCperiodTPC="LHC11B2"; | |
690 | } | |
691 | ||
692 | //______________________________________________________________________________ | |
693 | void AliPIDResponse::SetITSParametrisation() | |
694 | { | |
695 | // | |
696 | // Set the ITS parametrisation | |
697 | // | |
698 | } | |
699 | ||
700 | //______________________________________________________________________________ | |
701 | void AliPIDResponse::SetTPCPidResponseMaster() | |
702 | { | |
703 | // | |
704 | // Load the TPC pid response functions from the OADB | |
705 | // | |
706 | //don't load twice for the moment | |
707 | if (fArrPidResponseMaster) return; | |
708 | ||
709 | ||
710 | //reset the PID response functions | |
711 | delete fArrPidResponseMaster; | |
712 | fArrPidResponseMaster=0x0; | |
713 | ||
714 | TString fileName(Form("%s/COMMON/PID/data/TPCPIDResponse.root", fOADBPath.Data())); | |
715 | ||
716 | TFile *f=TFile::Open(fileName.Data()); | |
717 | if (f && f->IsOpen() && !f->IsZombie()){ | |
718 | fArrPidResponseMaster=dynamic_cast<TObjArray*>(f->Get("TPCPIDResponse")); | |
719 | } | |
720 | delete f; | |
721 | ||
722 | if (!fArrPidResponseMaster){ | |
723 | AliFatal(Form("Could not retrieve the TPC pid response from: %s",fileName.Data())); | |
724 | return; | |
725 | } | |
726 | fArrPidResponseMaster->SetOwner(); | |
727 | } | |
728 | ||
729 | //______________________________________________________________________________ | |
730 | void AliPIDResponse::SetTPCParametrisation() | |
731 | { | |
732 | // | |
733 | // Change BB parametrisation for current run | |
734 | // | |
735 | ||
736 | if (fLHCperiod.IsNull()) { | |
737 | AliFatal("No period set, not changing parametrisation"); | |
738 | return; | |
739 | } | |
740 | ||
741 | // | |
742 | // Set default parametrisations for data and MC | |
743 | // | |
744 | ||
745 | //data type | |
746 | TString datatype="DATA"; | |
747 | //in case of mc fRecoPass is per default 1 | |
748 | if (fIsMC) { | |
749 | datatype="MC"; | |
750 | fRecoPass=1; | |
751 | } | |
752 | ||
753 | // | |
754 | //reset old splines | |
755 | // | |
756 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ | |
757 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,0x0); | |
758 | } | |
759 | ||
760 | // | |
761 | //set the new PID splines | |
762 | // | |
763 | TString period=fLHCperiod; | |
764 | if (fArrPidResponseMaster){ | |
765 | TObject *grAll=0x0; | |
766 | //for MC don't use period information | |
767 | // if (fIsMC) period="[A-Z0-9]*"; | |
768 | //for MC use MC period information | |
769 | if (fIsMC) period=fMCperiodTPC; | |
770 | //pattern for the default entry (valid for all particles) | |
771 | TPRegexp reg(Form("TSPLINE3_%s_([A-Z]*)_%s_PASS%d_%s_MEAN",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); | |
772 | ||
773 | //loop over entries and filter them | |
774 | for (Int_t iresp=0; iresp<fArrPidResponseMaster->GetEntriesFast();++iresp){ | |
775 | TObject *responseFunction=fArrPidResponseMaster->At(iresp); | |
776 | if (responseFunction==0x0) continue; | |
777 | TString responseName=responseFunction->GetName(); | |
778 | ||
779 | if (!reg.MatchB(responseName)) continue; | |
780 | ||
781 | TObjArray *arr=reg.MatchS(responseName); | |
782 | TString particleName=arr->At(1)->GetName(); | |
783 | delete arr; | |
784 | if (particleName.IsNull()) continue; | |
785 | if (particleName=="ALL") grAll=responseFunction; | |
786 | else { | |
787 | //find particle id | |
788 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ | |
789 | TString particle=AliPID::ParticleName(ispec); | |
790 | particle.ToUpper(); | |
791 | if ( particle == particleName ){ | |
792 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,responseFunction); | |
793 | fTPCResponse.SetUseDatabase(kTRUE); | |
794 | AliInfo(Form("Adding graph: %d - %s",ispec,responseFunction->GetName())); | |
795 | break; | |
796 | } | |
797 | } | |
798 | } | |
799 | } | |
800 | ||
801 | //set default response function to all particles which don't have a specific one | |
802 | if (grAll){ | |
803 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ | |
804 | if (!fTPCResponse.GetResponseFunction((AliPID::EParticleType)ispec)){ | |
805 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,grAll); | |
806 | AliInfo(Form("Adding graph: %d - %s",ispec,grAll->GetName())); | |
807 | } | |
808 | } | |
809 | } | |
810 | } | |
811 | ||
812 | // | |
813 | // Setup resolution parametrisation | |
814 | // | |
815 | ||
816 | //default | |
817 | fTPCResponse.SetSigma(3.79301e-03, 2.21280e+04); | |
818 | ||
819 | if (fRun>=122195){ | |
820 | fTPCResponse.SetSigma(2.30176e-02, 5.60422e+02); | |
821 | } | |
822 | if (fArrPidResponseMaster) | |
823 | fResolutionCorrection=(TF1*)fArrPidResponseMaster->FindObject(Form("TF1_%s_ALL_%s_PASS%d_%s_SIGMA",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); | |
824 | ||
825 | if (fResolutionCorrection) AliInfo(Form("Setting multiplicity correction function: %s",fResolutionCorrection->GetName())); | |
826 | } | |
827 | ||
828 | //______________________________________________________________________________ | |
829 | void AliPIDResponse::SetTRDPidResponseMaster() | |
830 | { | |
831 | // | |
832 | // Load the TRD pid params and references from the OADB | |
833 | // | |
834 | if(fTRDPIDParams) return; | |
835 | AliOADBContainer contParams("contParams"); | |
836 | ||
837 | Int_t statusPars = contParams.InitFromFile(Form("%s/COMMON/PID/data/TRDPIDParams.root", fOADBPath.Data()), "AliTRDPIDParams"); | |
838 | if(statusPars){ | |
839 | AliError("Failed initializing PID Params from OADB"); | |
840 | } else { | |
841 | AliInfo(Form("Loading TRD Params from %s/COMMON/PID/data/TRDPIDParams.root", fOADBPath.Data())); | |
842 | fTRDPIDParams = dynamic_cast<AliTRDPIDParams *>(contParams.GetObject(fRun)); | |
843 | if(!fTRDPIDParams){ | |
844 | AliError(Form("TRD Params not found in run %d", fRun)); | |
845 | } | |
846 | } | |
847 | ||
848 | AliOADBContainer contRefs("contRefs"); | |
849 | Int_t statusRefs = contRefs.InitFromFile(Form("%s/COMMON/PID/data/TRDPIDReferenceLQ1D.root", fOADBPath.Data()), "AliTRDPIDReference"); | |
850 | if(statusRefs){ | |
851 | AliInfo("Failed Loading References for TRD"); | |
852 | } else { | |
853 | AliInfo(Form("Loading TRD References from %s/COMMON/PID/data/TRDPIDReferenceLQ1D.root", fOADBPath.Data())); | |
854 | fTRDPIDReference = dynamic_cast<AliTRDPIDReference *>(contRefs.GetObject(fRun)); | |
855 | if(!fTRDPIDReference){ | |
856 | AliError(Form("TRD References not found in OADB Container for run %d", fRun)); | |
857 | } | |
858 | } | |
859 | } | |
860 | ||
861 | //______________________________________________________________________________ | |
862 | void AliPIDResponse::InitializeTRDResponse(){ | |
863 | // | |
864 | // Set PID Params and references to the TRD PID response | |
865 | // | |
866 | fTRDResponse.SetPIDParams(fTRDPIDParams); | |
867 | fTRDResponse.Load(fTRDPIDReference); | |
868 | if(fLHCperiod == "LHC10b" || fLHCperiod == "LHC10c" || fLHCperiod == "LHC10d" || fLHCperiod == "LHC10e"){ | |
869 | fTRDslicesForPID[0] = 0; | |
870 | fTRDslicesForPID[1] = 7; | |
871 | } | |
872 | } | |
873 | ||
874 | //______________________________________________________________________________ | |
875 | void AliPIDResponse::SetTOFPidResponseMaster() | |
876 | { | |
877 | // | |
878 | // Load the TOF pid params from the OADB | |
879 | // | |
880 | TFile *oadbf = new TFile(Form("%s/COMMON/PID/data/TOFPIDParams.root",fOADBPath.Data())); | |
881 | if (oadbf->IsOpen()) { | |
882 | AliInfo(Form("Loading TOF Params from %s/COMMON/PID/data/TOFPIDParams.root", fOADBPath.Data())); | |
883 | AliOADBContainer *oadbc = (AliOADBContainer *)oadbf->Get("TOFoadb"); | |
884 | if (fTOFPIDParams) delete fTOFPIDParams; | |
885 | fTOFPIDParams = dynamic_cast<AliTOFPIDParams *>(oadbc->GetObject(fRun)); | |
886 | oadbf->Close(); | |
887 | delete oadbc; | |
888 | } else { | |
889 | AliError(Form("TOFPIDParams.root not found in %s/COMMON/PID/data !!",fOADBPath.Data())); | |
890 | } | |
891 | delete oadbf; | |
892 | ||
893 | } | |
894 | ||
895 | //______________________________________________________________________________ | |
896 | void AliPIDResponse::InitializeTOFResponse(){ | |
897 | // | |
898 | // Set PID Params to the TOF PID response | |
899 | // | |
900 | for (Int_t i=0;i<4;i++) { | |
901 | fTOFResponse.SetTrackParameter(i,fTOFPIDParams->GetSigParams(i)); | |
902 | } | |
903 | fTOFResponse.SetTimeResolution(fTOFPIDParams->GetTOFresolution()); | |
904 | ||
905 | } | |
906 | ||
907 | ||
908 | //_________________________________________________________________________ | |
909 | Bool_t AliPIDResponse::IdentifiedAsElectronTRD(const AliVTrack *vtrack, Double_t efficiencyLevel) const { | |
910 | // | |
911 | // Check whether track is identified as electron under a given electron efficiency hypothesis | |
912 | // | |
913 | Double_t probs[AliPID::kSPECIES]; | |
914 | ComputeTRDProbability(vtrack, AliPID::kSPECIES, probs); | |
915 | ||
916 | Int_t ntracklets = vtrack->GetTRDntrackletsPID(); | |
917 | // Take mean of the TRD momenta in the given tracklets | |
918 | Float_t p = 0, trdmomenta[AliVTrack::kTRDnPlanes]; | |
919 | Int_t nmomenta = 0; | |
920 | for(Int_t iPl=0;iPl<AliVTrack::kTRDnPlanes;iPl++){ | |
921 | if(vtrack->GetTRDmomentum(iPl) > 0.){ | |
922 | trdmomenta[nmomenta++] = vtrack->GetTRDmomentum(iPl); | |
923 | } | |
924 | } | |
925 | p = TMath::Mean(nmomenta, trdmomenta); | |
926 | ||
927 | return fTRDResponse.IdentifiedAsElectron(ntracklets, probs, p, efficiencyLevel); | |
928 | } | |
929 | ||
930 | //______________________________________________________________________________ | |
931 | void AliPIDResponse::SetEMCALPidResponseMaster() | |
932 | { | |
933 | // | |
934 | // Load the EMCAL pid response functions from the OADB | |
935 | // | |
936 | TObjArray* fEMCALPIDParamsRun = NULL; | |
937 | TObjArray* fEMCALPIDParamsPass = NULL; | |
938 | ||
939 | if(fEMCALPIDParams) return; | |
940 | AliOADBContainer contParams("contParams"); | |
941 | ||
942 | Int_t statusPars = contParams.InitFromFile(Form("%s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data()), "AliEMCALPIDParams"); | |
943 | if(statusPars){ | |
944 | AliError("Failed initializing PID Params from OADB"); | |
945 | } | |
946 | else { | |
947 | AliInfo(Form("Loading EMCAL Params from %s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data())); | |
948 | ||
949 | fEMCALPIDParamsRun = dynamic_cast<TObjArray *>(contParams.GetObject(fRun)); | |
950 | if(fEMCALPIDParamsRun) fEMCALPIDParamsPass = dynamic_cast<TObjArray *>(fEMCALPIDParamsRun->FindObject(Form("pass%d",fRecoPass))); | |
951 | if(fEMCALPIDParamsPass) fEMCALPIDParams = dynamic_cast<TObjArray *>(fEMCALPIDParamsPass->FindObject(Form("EMCALPIDParams_Particles"))); | |
952 | ||
953 | if(!fEMCALPIDParams){ | |
954 | AliInfo(Form("EMCAL Params not found in run %d pass %d", fRun, fRecoPass)); | |
955 | AliInfo("Will take the standard LHC11d instead ..."); | |
956 | ||
957 | fEMCALPIDParamsRun = dynamic_cast<TObjArray *>(contParams.GetObject(156477)); | |
958 | if(fEMCALPIDParamsRun) fEMCALPIDParamsPass = dynamic_cast<TObjArray *>(fEMCALPIDParamsRun->FindObject(Form("pass%d",1))); | |
959 | if(fEMCALPIDParamsPass) fEMCALPIDParams = dynamic_cast<TObjArray *>(fEMCALPIDParamsPass->FindObject(Form("EMCALPIDParams_Particles"))); | |
960 | ||
961 | if(!fEMCALPIDParams){ | |
962 | AliError(Form("DEFAULT EMCAL Params (LHC11d) not found in file %s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data())); | |
963 | } | |
964 | } | |
965 | } | |
966 | } | |
967 | ||
968 | //______________________________________________________________________________ | |
969 | void AliPIDResponse::InitializeEMCALResponse(){ | |
970 | // | |
971 | // Set PID Params to the EMCAL PID response | |
972 | // | |
973 | fEMCALResponse.SetPIDParams(fEMCALPIDParams); | |
974 | ||
975 | } | |
976 | //_________________________________________________________________________ | |
977 | void AliPIDResponse::SetTOFResponse(AliVEvent *vevent,EStartTimeType_t option){ | |
978 | // | |
979 | // Set TOF response function | |
980 | // Input option for event_time used | |
981 | // | |
982 | ||
983 | Float_t t0spread = 0.; //vevent->GetEventTimeSpread(); | |
984 | if(t0spread < 10) t0spread = 80; | |
985 | ||
986 | // T0 from TOF algorithm | |
987 | ||
988 | Bool_t flagT0TOF=kFALSE; | |
989 | Bool_t flagT0T0=kFALSE; | |
990 | Float_t *startTime = new Float_t[fTOFResponse.GetNmomBins()]; | |
991 | Float_t *startTimeRes = new Float_t[fTOFResponse.GetNmomBins()]; | |
992 | Int_t *startTimeMask = new Int_t[fTOFResponse.GetNmomBins()]; | |
993 | ||
994 | // T0-TOF arrays | |
995 | Float_t *estimatedT0event = new Float_t[fTOFResponse.GetNmomBins()]; | |
996 | Float_t *estimatedT0resolution = new Float_t[fTOFResponse.GetNmomBins()]; | |
997 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ | |
998 | estimatedT0event[i]=0.0; | |
999 | estimatedT0resolution[i]=0.0; | |
1000 | startTimeMask[i] = 0; | |
1001 | } | |
1002 | ||
1003 | Float_t resT0A=75,resT0C=65,resT0AC=55; | |
1004 | if(vevent->GetT0TOF()){ // check if T0 detector information is available | |
1005 | flagT0T0=kTRUE; | |
1006 | } | |
1007 | ||
1008 | ||
1009 | AliTOFHeader *tofHeader = (AliTOFHeader*)vevent->GetTOFHeader(); | |
1010 | ||
1011 | if (tofHeader) { // read global info and T0-TOF | |
1012 | fTOFResponse.SetTimeResolution(tofHeader->GetTOFResolution()); | |
1013 | t0spread = tofHeader->GetT0spread(); // read t0 sprad | |
1014 | if(t0spread < 10) t0spread = 80; | |
1015 | ||
1016 | flagT0TOF=kTRUE; | |
1017 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ // read T0-TOF default value | |
1018 | startTime[i]=tofHeader->GetDefaultEventTimeVal(); | |
1019 | startTimeRes[i]=tofHeader->GetDefaultEventTimeRes(); | |
1020 | if(startTimeRes[i] < 1.e-5) startTimeRes[i] = t0spread; | |
1021 | } | |
1022 | ||
1023 | TArrayI *ibin=(TArrayI*)tofHeader->GetNvalues(); | |
1024 | TArrayF *t0Bin=(TArrayF*)tofHeader->GetEventTimeValues(); | |
1025 | TArrayF *t0ResBin=(TArrayF*)tofHeader->GetEventTimeRes(); | |
1026 | for(Int_t j=0;j < tofHeader->GetNbins();j++){ // fill T0-TOF in p-bins | |
1027 | Int_t icurrent = (Int_t)ibin->GetAt(j); | |
1028 | startTime[icurrent]=t0Bin->GetAt(j); | |
1029 | startTimeRes[icurrent]=t0ResBin->GetAt(j); | |
1030 | if(startTimeRes[icurrent] < 1.e-5) startTimeRes[icurrent] = t0spread; | |
1031 | } | |
1032 | } | |
1033 | ||
1034 | // for cut of 3 sigma on t0 spread | |
1035 | Float_t t0cut = 3 * t0spread; | |
1036 | if(t0cut < 500) t0cut = 500; | |
1037 | ||
1038 | if(option == kFILL_T0){ // T0-FILL is used | |
1039 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ | |
1040 | estimatedT0event[i]=0.0; | |
1041 | estimatedT0resolution[i]=t0spread; | |
1042 | } | |
1043 | fTOFResponse.SetT0event(estimatedT0event); | |
1044 | fTOFResponse.SetT0resolution(estimatedT0resolution); | |
1045 | } | |
1046 | ||
1047 | if(option == kTOF_T0){ // T0-TOF is used when available (T0-FILL otherwise) from ESD | |
1048 | if(flagT0TOF){ | |
1049 | fTOFResponse.SetT0event(startTime); | |
1050 | fTOFResponse.SetT0resolution(startTimeRes); | |
1051 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ | |
1052 | if(startTimeRes[i]<t0spread) startTimeMask[i]=1; | |
1053 | fTOFResponse.SetT0binMask(i,startTimeMask[i]); | |
1054 | } | |
1055 | } | |
1056 | else{ | |
1057 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ | |
1058 | estimatedT0event[i]=0.0; | |
1059 | estimatedT0resolution[i]=t0spread; | |
1060 | fTOFResponse.SetT0binMask(i,startTimeMask[i]); | |
1061 | } | |
1062 | fTOFResponse.SetT0event(estimatedT0event); | |
1063 | fTOFResponse.SetT0resolution(estimatedT0resolution); | |
1064 | } | |
1065 | } | |
1066 | else if(option == kBest_T0){ // T0-T0 or T0-TOF are used when available (T0-FILL otherwise) from ESD | |
1067 | Float_t t0AC=-10000; | |
1068 | Float_t t0A=-10000; | |
1069 | Float_t t0C=-10000; | |
1070 | if(flagT0T0){ | |
1071 | t0AC= vevent->GetT0TOF()[0]; | |
1072 | t0A= vevent->GetT0TOF()[1]; | |
1073 | t0C= vevent->GetT0TOF()[2]; | |
1074 | } | |
1075 | ||
1076 | Float_t t0t0Best = 0; | |
1077 | Float_t t0t0BestRes = 9999; | |
1078 | Int_t t0used=0; | |
1079 | if(TMath::Abs(t0A) < t0cut && TMath::Abs(t0C) < t0cut && TMath::Abs(t0C-t0A) < 500){ | |
1080 | t0t0Best = t0AC; | |
1081 | t0t0BestRes = resT0AC; | |
1082 | t0used=6; | |
1083 | } | |
1084 | else if(TMath::Abs(t0C) < t0cut){ | |
1085 | t0t0Best = t0C; | |
1086 | t0t0BestRes = resT0C; | |
1087 | t0used=4; | |
1088 | } | |
1089 | else if(TMath::Abs(t0A) < t0cut){ | |
1090 | t0t0Best = t0A; | |
1091 | t0t0BestRes = resT0A; | |
1092 | t0used=2; | |
1093 | } | |
1094 | ||
1095 | if(flagT0TOF){ // if T0-TOF info is available | |
1096 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ | |
1097 | if(t0t0BestRes < 999){ | |
1098 | if(startTimeRes[i] < t0spread){ | |
1099 | Double_t wtot = 1./startTimeRes[i]/startTimeRes[i] + 1./t0t0BestRes/t0t0BestRes; | |
1100 | Double_t t0best = startTime[i]/startTimeRes[i]/startTimeRes[i] + t0t0Best/t0t0BestRes/t0t0BestRes; | |
1101 | estimatedT0event[i]=t0best / wtot; | |
1102 | estimatedT0resolution[i]=1./TMath::Sqrt(wtot); | |
1103 | startTimeMask[i] = t0used+1; | |
1104 | } | |
1105 | else { | |
1106 | estimatedT0event[i]=t0t0Best; | |
1107 | estimatedT0resolution[i]=t0t0BestRes; | |
1108 | startTimeMask[i] = t0used; | |
1109 | } | |
1110 | } | |
1111 | else{ | |
1112 | estimatedT0event[i]=startTime[i]; | |
1113 | estimatedT0resolution[i]=startTimeRes[i]; | |
1114 | if(startTimeRes[i]<t0spread) startTimeMask[i]=1; | |
1115 | } | |
1116 | fTOFResponse.SetT0binMask(i,startTimeMask[i]); | |
1117 | } | |
1118 | fTOFResponse.SetT0event(estimatedT0event); | |
1119 | fTOFResponse.SetT0resolution(estimatedT0resolution); | |
1120 | } | |
1121 | else{ // if no T0-TOF info is available | |
1122 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ | |
1123 | fTOFResponse.SetT0binMask(i,t0used); | |
1124 | if(t0t0BestRes < 999){ | |
1125 | estimatedT0event[i]=t0t0Best; | |
1126 | estimatedT0resolution[i]=t0t0BestRes; | |
1127 | } | |
1128 | else{ | |
1129 | estimatedT0event[i]=0.0; | |
1130 | estimatedT0resolution[i]=t0spread; | |
1131 | } | |
1132 | } | |
1133 | fTOFResponse.SetT0event(estimatedT0event); | |
1134 | fTOFResponse.SetT0resolution(estimatedT0resolution); | |
1135 | } | |
1136 | } | |
1137 | ||
1138 | else if(option == kT0_T0){ // T0-T0 is used when available (T0-FILL otherwise) | |
1139 | Float_t t0AC=-10000; | |
1140 | Float_t t0A=-10000; | |
1141 | Float_t t0C=-10000; | |
1142 | if(flagT0T0){ | |
1143 | t0AC= vevent->GetT0TOF()[0]; | |
1144 | t0A= vevent->GetT0TOF()[1]; | |
1145 | t0C= vevent->GetT0TOF()[2]; | |
1146 | } | |
1147 | ||
1148 | if(TMath::Abs(t0A) < t0cut && TMath::Abs(t0C) < t0cut && TMath::Abs(t0C-t0A) < 500){ | |
1149 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ | |
1150 | estimatedT0event[i]=t0AC; | |
1151 | estimatedT0resolution[i]=resT0AC; | |
1152 | fTOFResponse.SetT0binMask(i,6); | |
1153 | } | |
1154 | } | |
1155 | else if(TMath::Abs(t0C) < t0cut){ | |
1156 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ | |
1157 | estimatedT0event[i]=t0C; | |
1158 | estimatedT0resolution[i]=resT0C; | |
1159 | fTOFResponse.SetT0binMask(i,4); | |
1160 | } | |
1161 | } | |
1162 | else if(TMath::Abs(t0A) < t0cut){ | |
1163 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ | |
1164 | estimatedT0event[i]=t0A; | |
1165 | estimatedT0resolution[i]=resT0A; | |
1166 | fTOFResponse.SetT0binMask(i,2); | |
1167 | } | |
1168 | } | |
1169 | else{ | |
1170 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ | |
1171 | estimatedT0event[i]=0.0; | |
1172 | estimatedT0resolution[i]=t0spread; | |
1173 | fTOFResponse.SetT0binMask(i,0); | |
1174 | } | |
1175 | } | |
1176 | fTOFResponse.SetT0event(estimatedT0event); | |
1177 | fTOFResponse.SetT0resolution(estimatedT0resolution); | |
1178 | } | |
1179 | delete [] startTime; | |
1180 | delete [] startTimeRes; | |
1181 | delete [] startTimeMask; | |
1182 | delete [] estimatedT0event; | |
1183 | delete [] estimatedT0resolution; | |
1184 | } |