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> |
b79db598 |
40 | #include <AliTOFPIDParams.h> |
29bf19f2 |
41 | |
42 | #include "AliPIDResponse.h" |
43 | |
80f28562 |
44 | #include "AliCentrality.h" |
45 | |
29bf19f2 |
46 | ClassImp(AliPIDResponse); |
47 | |
4ec8e76d |
48 | AliPIDResponse::AliPIDResponse(Bool_t isMC/*=kFALSE*/) : |
49 | TNamed("PIDResponse","PIDResponse"), |
50 | fITSResponse(isMC), |
51 | fTPCResponse(), |
52 | fTRDResponse(), |
53 | fTOFResponse(), |
e96b9916 |
54 | fEMCALResponse(), |
fd21ec8d |
55 | fRange(5.), |
56 | fITSPIDmethod(kITSTruncMean), |
4ec8e76d |
57 | fIsMC(isMC), |
58 | fOADBPath(), |
59 | fBeamType("PP"), |
60 | fLHCperiod(), |
61 | fMCperiodTPC(), |
fd21ec8d |
62 | fMCperiodUser(), |
ea235c90 |
63 | fCurrentFile(), |
4ec8e76d |
64 | fRecoPass(0), |
fd21ec8d |
65 | fRecoPassUser(-1), |
4ec8e76d |
66 | fRun(0), |
67 | fOldRun(0), |
68 | fArrPidResponseMaster(0x0), |
69 | fResolutionCorrection(0x0), |
ea235c90 |
70 | fTRDPIDParams(0x0), |
71 | fTRDPIDReference(0x0), |
0b39f221 |
72 | fTOFtail(1.1), |
b79db598 |
73 | fTOFPIDParams(0x0), |
b2138b40 |
74 | fEMCALPIDParams(0x0), |
80f28562 |
75 | fCurrentEvent(0x0), |
76 | fCurrCentrality(0.0) |
4ec8e76d |
77 | { |
78 | // |
79 | // default ctor |
80 | // |
a635821f |
81 | AliLog::SetClassDebugLevel("AliPIDResponse",0); |
82 | AliLog::SetClassDebugLevel("AliESDpid",0); |
83 | AliLog::SetClassDebugLevel("AliAODpidUtil",0); |
ea235c90 |
84 | |
85 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); |
4ec8e76d |
86 | } |
87 | |
88 | //______________________________________________________________________________ |
89 | AliPIDResponse::~AliPIDResponse() |
90 | { |
91 | // |
92 | // dtor |
93 | // |
94 | delete fArrPidResponseMaster; |
ea235c90 |
95 | delete fTRDPIDParams; |
96 | delete fTRDPIDReference; |
b79db598 |
97 | if (fTOFPIDParams) delete fTOFPIDParams; |
4ec8e76d |
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), |
e96b9916 |
107 | fEMCALResponse(other.fEMCALResponse), |
fd21ec8d |
108 | fRange(other.fRange), |
109 | fITSPIDmethod(other.fITSPIDmethod), |
4ec8e76d |
110 | fIsMC(other.fIsMC), |
111 | fOADBPath(other.fOADBPath), |
112 | fBeamType("PP"), |
113 | fLHCperiod(), |
114 | fMCperiodTPC(), |
fd21ec8d |
115 | fMCperiodUser(other.fMCperiodUser), |
ea235c90 |
116 | fCurrentFile(), |
4ec8e76d |
117 | fRecoPass(0), |
fd21ec8d |
118 | fRecoPassUser(other.fRecoPassUser), |
4ec8e76d |
119 | fRun(0), |
120 | fOldRun(0), |
121 | fArrPidResponseMaster(0x0), |
122 | fResolutionCorrection(0x0), |
ea235c90 |
123 | fTRDPIDParams(0x0), |
124 | fTRDPIDReference(0x0), |
0b39f221 |
125 | fTOFtail(1.1), |
b79db598 |
126 | fTOFPIDParams(0x0), |
b2138b40 |
127 | fEMCALPIDParams(0x0), |
80f28562 |
128 | fCurrentEvent(0x0), |
129 | fCurrCentrality(0.0) |
4ec8e76d |
130 | { |
131 | // |
132 | // copy ctor |
133 | // |
ea235c90 |
134 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); |
4ec8e76d |
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; |
e96b9916 |
150 | fEMCALResponse=other.fEMCALResponse; |
fd21ec8d |
151 | fRange=other.fRange; |
152 | fITSPIDmethod=other.fITSPIDmethod; |
4ec8e76d |
153 | fOADBPath=other.fOADBPath; |
154 | fIsMC=other.fIsMC; |
155 | fBeamType="PP"; |
156 | fLHCperiod=""; |
157 | fMCperiodTPC=""; |
fd21ec8d |
158 | fMCperiodUser=other.fMCperiodUser; |
ea235c90 |
159 | fCurrentFile=""; |
4ec8e76d |
160 | fRecoPass=0; |
fd21ec8d |
161 | fRecoPassUser=other.fRecoPassUser; |
4ec8e76d |
162 | fRun=0; |
163 | fOldRun=0; |
164 | fArrPidResponseMaster=0x0; |
165 | fResolutionCorrection=0x0; |
ea235c90 |
166 | fTRDPIDParams=0x0; |
167 | fTRDPIDReference=0x0; |
b2138b40 |
168 | fEMCALPIDParams=0x0; |
ea235c90 |
169 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); |
0b39f221 |
170 | fTOFtail=1.1; |
b79db598 |
171 | fTOFPIDParams=0x0; |
e96b9916 |
172 | fCurrentEvent=other.fCurrentEvent; |
4ec8e76d |
173 | } |
174 | return *this; |
175 | } |
176 | |
fd21ec8d |
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; |
e96b9916 |
190 | // case kDetEMCAL: return NumberOfSigmasEMCAL(track, type); break; |
fd21ec8d |
191 | // case kDetHMPID: return ComputeHMPIDProbability(track, type); break; |
192 | default: return -999.; |
193 | } |
194 | |
195 | } |
196 | |
e96b9916 |
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){ |
6d0064aa |
213 | |
e96b9916 |
214 | mom = track->P(); |
215 | pt = track->Pt(); |
216 | charge = track->Charge(); |
217 | |
218 | matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus); |
219 | |
220 | if(matchedClus){ |
221 | |
6d0064aa |
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 | } |
e96b9916 |
232 | } |
233 | } |
6d0064aa |
234 | |
e96b9916 |
235 | return -999; |
236 | |
237 | } |
238 | |
6d0064aa |
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 | |
fd21ec8d |
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 | |
0b39f221 |
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 | |
fd21ec8d |
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 | |
67376d1d |
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 | // } |
fd21ec8d |
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); |
0b39f221 |
429 | Double_t nsigmas=NumberOfSigmasTOF(track,type) + meanCorrFactor; |
430 | |
67376d1d |
431 | // Double_t sig = sigma[j]; |
432 | Double_t expTime = fTOFResponse.GetExpectedSignal(track,type); |
433 | Double_t sig = fTOFResponse.GetExpectedSigma(track->P(),expTime,AliPID::ParticleMassZ(type)); |
0b39f221 |
434 | if (TMath::Abs(nsigmas) > (fRange+2)) { |
435 | if(nsigmas < fTOFtail) |
436 | p[j] = TMath::Exp(-0.5*(fRange+2)*(fRange+2))/sig; |
437 | else |
438 | p[j] = TMath::Exp(-(fRange+2 - fTOFtail*0.5)*fTOFtail)/sig; |
439 | } else{ |
440 | if(nsigmas < fTOFtail) |
441 | p[j] = TMath::Exp(-0.5*nsigmas*nsigmas)/sig; |
442 | else |
443 | p[j] = TMath::Exp(-(nsigmas - fTOFtail*0.5)*fTOFtail)/sig; |
444 | } |
445 | |
446 | /* OLD Gaussian shape |
fd21ec8d |
447 | if (TMath::Abs(nsigmas) > (fRange+2)) { |
448 | p[j] = TMath::Exp(-0.5*(fRange+2)*(fRange+2))/sig; |
449 | } else |
450 | p[j] = TMath::Exp(-0.5*nsigmas*nsigmas)/sig; |
0b39f221 |
451 | */ |
fd21ec8d |
452 | |
453 | if (TMath::Abs(nsigmas)<5.){ |
454 | Double_t nsigmasTPC=NumberOfSigmasTPC(track,type); |
455 | if (TMath::Abs(nsigmasTPC)<5.) mismatch=kFALSE; |
456 | } |
457 | } |
458 | |
459 | if (mismatch){ |
460 | return kDetMismatch; |
461 | } |
462 | |
463 | // TODO: Light nuclei |
464 | |
465 | return kDetPidOk; |
466 | } |
467 | //______________________________________________________________________________ |
ea235c90 |
468 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
fd21ec8d |
469 | { |
470 | // |
471 | // Compute PID response for the |
472 | // |
473 | |
474 | // set flat distribution (no decision) |
475 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
ea235c90 |
476 | if((track->GetStatus()&AliVTrack::kTRDout)==0) return kDetNoSignal; |
477 | |
478 | Float_t mom[6]; |
479 | Double_t dedx[48]; // Allocate space for the maximum number of TRD slices |
480 | Int_t nslices = fTRDslicesForPID[1] - fTRDslicesForPID[0] + 1; |
481 | AliDebug(1, Form("First Slice: %d, Last Slice: %d, Number of slices: %d", fTRDslicesForPID[0], fTRDslicesForPID[1], nslices)); |
482 | for(UInt_t ilayer = 0; ilayer < 6; ilayer++){ |
483 | mom[ilayer] = track->GetTRDmomentum(ilayer); |
484 | for(UInt_t islice = fTRDslicesForPID[0]; islice <= fTRDslicesForPID[1]; islice++){ |
485 | dedx[ilayer*nslices+islice-fTRDslicesForPID[0]] = track->GetTRDslice(ilayer, islice); |
486 | } |
487 | } |
488 | fTRDResponse.GetResponse(nslices, dedx, mom, p); |
489 | return kDetPidOk; |
fd21ec8d |
490 | } |
491 | //______________________________________________________________________________ |
e96b9916 |
492 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeEMCALProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
fd21ec8d |
493 | { |
494 | // |
495 | // Compute PID response for the EMCAL |
496 | // |
497 | |
e96b9916 |
498 | AliVCluster *matchedClus = NULL; |
499 | |
500 | Double_t mom = -1.; |
501 | Double_t pt = -1.; |
502 | Double_t EovP = -1.; |
503 | Double_t fClsE = -1.; |
504 | |
505 | Int_t nMatchClus = -1; |
506 | Int_t charge = 0; |
507 | |
508 | // Track matching |
509 | nMatchClus = track->GetEMCALcluster(); |
510 | |
511 | if(nMatchClus > -1){ |
512 | |
513 | mom = track->P(); |
514 | pt = track->Pt(); |
515 | charge = track->Charge(); |
516 | |
517 | matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus); |
518 | |
519 | if(matchedClus){ |
520 | |
521 | // matched cluster is EMCAL |
522 | if(matchedClus->IsEMCAL()){ |
523 | |
524 | fClsE = matchedClus->E(); |
525 | EovP = fClsE/mom; |
526 | |
527 | |
528 | // compute the probabilities |
529 | if( 999 != fEMCALResponse.ComputeEMCALProbability(pt,EovP,charge,p)){ |
530 | |
531 | // in case everything is OK |
532 | return kDetPidOk; |
533 | |
534 | } |
535 | } |
536 | } |
537 | } |
538 | |
539 | // in all other cases set flat distribution (no decision) |
fd21ec8d |
540 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
541 | return kDetNoSignal; |
e96b9916 |
542 | |
fd21ec8d |
543 | } |
544 | //______________________________________________________________________________ |
545 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePHOSProbability (const AliVTrack */*track*/, Int_t nSpecies, Double_t p[]) const |
546 | { |
547 | // |
548 | // Compute PID response for the PHOS |
549 | // |
550 | |
551 | // set flat distribution (no decision) |
552 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
553 | return kDetNoSignal; |
554 | } |
555 | //______________________________________________________________________________ |
ea235c90 |
556 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
fd21ec8d |
557 | { |
558 | // |
559 | // Compute PID response for the HMPID |
560 | // |
561 | |
562 | // set flat distribution (no decision) |
563 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
ea235c90 |
564 | if((track->GetStatus()&AliVTrack::kHMPIDpid)==0) return kDetNoSignal; |
565 | |
566 | track->GetHMPIDpid(p); |
567 | |
568 | return kDetPidOk; |
fd21ec8d |
569 | } |
570 | |
4ec8e76d |
571 | //______________________________________________________________________________ |
572 | void AliPIDResponse::InitialiseEvent(AliVEvent *event, Int_t pass) |
573 | { |
574 | // |
575 | // Apply settings for the current event |
576 | // |
577 | fRecoPass=pass; |
e96b9916 |
578 | |
579 | fCurrentEvent=0x0; |
4ec8e76d |
580 | if (!event) return; |
e96b9916 |
581 | fCurrentEvent=event; |
4ec8e76d |
582 | fRun=event->GetRunNumber(); |
583 | |
584 | if (fRun!=fOldRun){ |
585 | ExecNewRun(); |
586 | fOldRun=fRun; |
587 | } |
588 | |
589 | //TPC resolution parametrisation PbPb |
590 | if ( fResolutionCorrection ){ |
591 | Double_t corrSigma=fResolutionCorrection->Eval(GetTPCMultiplicityBin(event)); |
592 | fTPCResponse.SetSigma(3.79301e-03*corrSigma, 2.21280e+04); |
593 | } |
594 | |
595 | //TOF resolution |
b79db598 |
596 | SetTOFResponse(event, (AliPIDResponse::EStartTimeType_t)fTOFPIDParams->GetStartTimeMethod()); |
597 | |
80f28562 |
598 | |
599 | // Get and set centrality |
600 | AliCentrality *centrality = event->GetCentrality(); |
601 | if(centrality){ |
602 | fCurrCentrality = centrality->GetCentralityPercentile("V0M"); |
603 | } |
604 | else{ |
605 | fCurrCentrality = -1; |
606 | } |
4ec8e76d |
607 | } |
608 | |
609 | //______________________________________________________________________________ |
610 | void AliPIDResponse::ExecNewRun() |
611 | { |
612 | // |
613 | // Things to Execute upon a new run |
614 | // |
615 | SetRecoInfo(); |
616 | |
617 | SetITSParametrisation(); |
618 | |
619 | SetTPCPidResponseMaster(); |
620 | SetTPCParametrisation(); |
53d016dc |
621 | |
622 | SetTRDPidResponseMaster(); |
623 | InitializeTRDResponse(); |
b2138b40 |
624 | |
625 | SetEMCALPidResponseMaster(); |
626 | InitializeEMCALResponse(); |
4ec8e76d |
627 | |
b79db598 |
628 | SetTOFPidResponseMaster(); |
629 | InitializeTOFResponse(); |
4ec8e76d |
630 | } |
631 | |
632 | //_____________________________________________________ |
633 | Double_t AliPIDResponse::GetTPCMultiplicityBin(const AliVEvent * const event) |
634 | { |
635 | // |
636 | // Get TPC multiplicity in bins of 150 |
637 | // |
638 | |
639 | const AliVVertex* vertexTPC = event->GetPrimaryVertex(); |
640 | Double_t tpcMulti=0.; |
641 | if(vertexTPC){ |
642 | Double_t vertexContribTPC=vertexTPC->GetNContributors(); |
643 | tpcMulti=vertexContribTPC/150.; |
644 | if (tpcMulti>20.) tpcMulti=20.; |
645 | } |
646 | |
647 | return tpcMulti; |
648 | } |
649 | |
650 | //______________________________________________________________________________ |
651 | void AliPIDResponse::SetRecoInfo() |
652 | { |
653 | // |
654 | // Set reconstruction information |
655 | // |
656 | |
657 | //reset information |
658 | fLHCperiod=""; |
659 | fMCperiodTPC=""; |
660 | |
661 | fBeamType=""; |
662 | |
663 | fBeamType="PP"; |
664 | |
1436d6bb |
665 | |
666 | TPRegexp reg(".*(LHC1[1-2][a-z]+[0-9]+[a-z_]*)/.*"); |
667 | |
4ec8e76d |
668 | //find the period by run number (UGLY, but not stored in ESD and AOD... ) |
669 | if (fRun>=114737&&fRun<=117223) { fLHCperiod="LHC10B"; fMCperiodTPC="LHC10D1"; } |
670 | else if (fRun>=118503&&fRun<=121040) { fLHCperiod="LHC10C"; fMCperiodTPC="LHC10D1"; } |
671 | else if (fRun>=122195&&fRun<=126437) { fLHCperiod="LHC10D"; fMCperiodTPC="LHC10F6A"; } |
99e9d5ec |
672 | else if (fRun>=127710&&fRun<=130850) { fLHCperiod="LHC10E"; fMCperiodTPC="LHC10F6A"; } |
4ec8e76d |
673 | else if (fRun>=133004&&fRun<=135029) { fLHCperiod="LHC10F"; fMCperiodTPC="LHC10F6A"; } |
674 | else if (fRun>=135654&&fRun<=136377) { fLHCperiod="LHC10G"; fMCperiodTPC="LHC10F6A"; } |
ea235c90 |
675 | else if (fRun>=136851&&fRun<=139517) { |
676 | fLHCperiod="LHC10H"; |
677 | fMCperiodTPC="LHC10H8"; |
678 | if (reg.MatchB(fCurrentFile)) fMCperiodTPC="LHC11A10"; |
679 | fBeamType="PBPB"; |
680 | } |
3077a03d |
681 | else if (fRun>=139699&&fRun<=146860) { fLHCperiod="LHC11A"; fMCperiodTPC="LHC10F6A"; } |
2e97a211 |
682 | //TODO: periods 11B, 11C are not yet treated assume 11d for the moment |
683 | else if (fRun>=148531&&fRun<=155384) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; } |
684 | else if (fRun>=156477&&fRun<=159635) { fLHCperiod="LHC11D"; fMCperiodTPC="LHC10F6A"; } |
3077a03d |
685 | else if (fRun>=166529) { |
686 | fLHCperiod="LHC11H"; |
687 | fMCperiodTPC="LHC11A10"; |
688 | fBeamType="PBPB"; |
689 | } |
690 | |
80ab5635 |
691 | |
692 | //exception new pp MC productions from 2011 |
693 | if (fBeamType=="PP" && reg.MatchB(fCurrentFile)) fMCperiodTPC="LHC11B2"; |
4a527e08 |
694 | // exception for 11f1 |
695 | if (fCurrentFile.Contains("LHC11f1/")) fMCperiodTPC="LHC11F1"; |
4ec8e76d |
696 | } |
697 | |
698 | //______________________________________________________________________________ |
699 | void AliPIDResponse::SetITSParametrisation() |
700 | { |
701 | // |
702 | // Set the ITS parametrisation |
703 | // |
704 | } |
705 | |
706 | //______________________________________________________________________________ |
707 | void AliPIDResponse::SetTPCPidResponseMaster() |
708 | { |
709 | // |
710 | // Load the TPC pid response functions from the OADB |
711 | // |
09b50a42 |
712 | //don't load twice for the moment |
713 | if (fArrPidResponseMaster) return; |
714 | |
715 | |
4ec8e76d |
716 | //reset the PID response functions |
717 | delete fArrPidResponseMaster; |
718 | fArrPidResponseMaster=0x0; |
719 | |
720 | TString fileName(Form("%s/COMMON/PID/data/TPCPIDResponse.root", fOADBPath.Data())); |
721 | |
ea235c90 |
722 | TFile *f=TFile::Open(fileName.Data()); |
723 | if (f && f->IsOpen() && !f->IsZombie()){ |
724 | fArrPidResponseMaster=dynamic_cast<TObjArray*>(f->Get("TPCPIDResponse")); |
4ec8e76d |
725 | } |
ea235c90 |
726 | delete f; |
4ec8e76d |
727 | |
728 | if (!fArrPidResponseMaster){ |
729 | AliFatal(Form("Could not retrieve the TPC pid response from: %s",fileName.Data())); |
730 | return; |
731 | } |
732 | fArrPidResponseMaster->SetOwner(); |
733 | } |
734 | |
735 | //______________________________________________________________________________ |
736 | void AliPIDResponse::SetTPCParametrisation() |
737 | { |
738 | // |
739 | // Change BB parametrisation for current run |
740 | // |
741 | |
742 | if (fLHCperiod.IsNull()) { |
743 | AliFatal("No period set, not changing parametrisation"); |
744 | return; |
745 | } |
746 | |
747 | // |
748 | // Set default parametrisations for data and MC |
749 | // |
750 | |
751 | //data type |
752 | TString datatype="DATA"; |
753 | //in case of mc fRecoPass is per default 1 |
754 | if (fIsMC) { |
755 | datatype="MC"; |
756 | fRecoPass=1; |
757 | } |
758 | |
759 | // |
760 | //reset old splines |
761 | // |
762 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ |
763 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,0x0); |
764 | } |
4a527e08 |
765 | |
766 | // period |
767 | TString period=fLHCperiod; |
768 | if (fIsMC) period=fMCperiodTPC; |
769 | |
770 | AliInfo(Form("Searching splines for: %s %s PASS%d %s",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); |
771 | Bool_t found=kFALSE; |
4ec8e76d |
772 | // |
773 | //set the new PID splines |
774 | // |
4ec8e76d |
775 | if (fArrPidResponseMaster){ |
776 | TObject *grAll=0x0; |
777 | //for MC don't use period information |
778 | // if (fIsMC) period="[A-Z0-9]*"; |
779 | //for MC use MC period information |
4ec8e76d |
780 | //pattern for the default entry (valid for all particles) |
781 | TPRegexp reg(Form("TSPLINE3_%s_([A-Z]*)_%s_PASS%d_%s_MEAN",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); |
782 | |
783 | //loop over entries and filter them |
784 | for (Int_t iresp=0; iresp<fArrPidResponseMaster->GetEntriesFast();++iresp){ |
785 | TObject *responseFunction=fArrPidResponseMaster->At(iresp); |
786 | if (responseFunction==0x0) continue; |
787 | TString responseName=responseFunction->GetName(); |
788 | |
789 | if (!reg.MatchB(responseName)) continue; |
790 | |
791 | TObjArray *arr=reg.MatchS(responseName); |
792 | TString particleName=arr->At(1)->GetName(); |
793 | delete arr; |
794 | if (particleName.IsNull()) continue; |
795 | if (particleName=="ALL") grAll=responseFunction; |
796 | else { |
797 | //find particle id |
798 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ |
799 | TString particle=AliPID::ParticleName(ispec); |
800 | particle.ToUpper(); |
801 | if ( particle == particleName ){ |
802 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,responseFunction); |
803 | fTPCResponse.SetUseDatabase(kTRUE); |
804 | AliInfo(Form("Adding graph: %d - %s",ispec,responseFunction->GetName())); |
4a527e08 |
805 | found=kTRUE; |
4ec8e76d |
806 | break; |
807 | } |
808 | } |
809 | } |
810 | } |
811 | |
812 | //set default response function to all particles which don't have a specific one |
813 | if (grAll){ |
814 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ |
815 | if (!fTPCResponse.GetResponseFunction((AliPID::EParticleType)ispec)){ |
816 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,grAll); |
817 | AliInfo(Form("Adding graph: %d - %s",ispec,grAll->GetName())); |
4a527e08 |
818 | found=kTRUE; |
4ec8e76d |
819 | } |
820 | } |
821 | } |
822 | } |
4a527e08 |
823 | |
824 | if (!found){ |
825 | AliError(Form("No splines found for: %s %s PASS%d %s",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); |
826 | } |
4ec8e76d |
827 | // |
828 | // Setup resolution parametrisation |
829 | // |
830 | |
831 | //default |
832 | fTPCResponse.SetSigma(3.79301e-03, 2.21280e+04); |
833 | |
834 | if (fRun>=122195){ |
835 | fTPCResponse.SetSigma(2.30176e-02, 5.60422e+02); |
836 | } |
23425eb2 |
837 | if (fArrPidResponseMaster) |
4ec8e76d |
838 | fResolutionCorrection=(TF1*)fArrPidResponseMaster->FindObject(Form("TF1_%s_ALL_%s_PASS%d_%s_SIGMA",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); |
839 | |
840 | if (fResolutionCorrection) AliInfo(Form("Setting multiplicity correction function: %s",fResolutionCorrection->GetName())); |
841 | } |
842 | |
ea235c90 |
843 | //______________________________________________________________________________ |
844 | void AliPIDResponse::SetTRDPidResponseMaster() |
845 | { |
846 | // |
847 | // Load the TRD pid params and references from the OADB |
848 | // |
849 | if(fTRDPIDParams) return; |
53d016dc |
850 | AliOADBContainer contParams("contParams"); |
851 | |
59a8e853 |
852 | Int_t statusPars = contParams.InitFromFile(Form("%s/COMMON/PID/data/TRDPIDParams.root", fOADBPath.Data()), "AliTRDPIDParams"); |
853 | if(statusPars){ |
854 | AliError("Failed initializing PID Params from OADB"); |
855 | } else { |
856 | AliInfo(Form("Loading TRD Params from %s/COMMON/PID/data/TRDPIDParams.root", fOADBPath.Data())); |
b2138b40 |
857 | fTRDPIDParams = dynamic_cast<AliTRDPIDParams *>(contParams.GetObject(fRun)); |
59a8e853 |
858 | if(!fTRDPIDParams){ |
859 | AliError(Form("TRD Params not found in run %d", fRun)); |
860 | } |
861 | } |
ea235c90 |
862 | |
53d016dc |
863 | AliOADBContainer contRefs("contRefs"); |
59a8e853 |
864 | Int_t statusRefs = contRefs.InitFromFile(Form("%s/COMMON/PID/data/TRDPIDReferenceLQ1D.root", fOADBPath.Data()), "AliTRDPIDReference"); |
865 | if(statusRefs){ |
866 | AliInfo("Failed Loading References for TRD"); |
867 | } else { |
868 | AliInfo(Form("Loading TRD References from %s/COMMON/PID/data/TRDPIDReferenceLQ1D.root", fOADBPath.Data())); |
869 | fTRDPIDReference = dynamic_cast<AliTRDPIDReference *>(contRefs.GetObject(fRun)); |
870 | if(!fTRDPIDReference){ |
871 | AliError(Form("TRD References not found in OADB Container for run %d", fRun)); |
872 | } |
873 | } |
ea235c90 |
874 | } |
875 | |
876 | //______________________________________________________________________________ |
877 | void AliPIDResponse::InitializeTRDResponse(){ |
878 | // |
879 | // Set PID Params and references to the TRD PID response |
880 | // |
881 | fTRDResponse.SetPIDParams(fTRDPIDParams); |
882 | fTRDResponse.Load(fTRDPIDReference); |
883 | if(fLHCperiod == "LHC10b" || fLHCperiod == "LHC10c" || fLHCperiod == "LHC10d" || fLHCperiod == "LHC10e"){ |
884 | fTRDslicesForPID[0] = 0; |
885 | fTRDslicesForPID[1] = 7; |
886 | } |
887 | } |
888 | |
b79db598 |
889 | //______________________________________________________________________________ |
890 | void AliPIDResponse::SetTOFPidResponseMaster() |
891 | { |
892 | // |
893 | // Load the TOF pid params from the OADB |
894 | // |
895 | TFile *oadbf = new TFile(Form("%s/COMMON/PID/data/TOFPIDParams.root",fOADBPath.Data())); |
896 | if (oadbf->IsOpen()) { |
897 | AliInfo(Form("Loading TOF Params from %s/COMMON/PID/data/TOFPIDParams.root", fOADBPath.Data())); |
898 | AliOADBContainer *oadbc = (AliOADBContainer *)oadbf->Get("TOFoadb"); |
899 | if (fTOFPIDParams) delete fTOFPIDParams; |
f57f1e18 |
900 | fTOFPIDParams = dynamic_cast<AliTOFPIDParams *>(oadbc->GetObject(fRun,"TOFparams")); |
b79db598 |
901 | oadbf->Close(); |
902 | delete oadbc; |
903 | } else { |
904 | AliError(Form("TOFPIDParams.root not found in %s/COMMON/PID/data !!",fOADBPath.Data())); |
905 | } |
906 | delete oadbf; |
907 | |
908 | } |
909 | |
910 | //______________________________________________________________________________ |
911 | void AliPIDResponse::InitializeTOFResponse(){ |
912 | // |
913 | // Set PID Params to the TOF PID response |
914 | // |
b79db598 |
915 | for (Int_t i=0;i<4;i++) { |
916 | fTOFResponse.SetTrackParameter(i,fTOFPIDParams->GetSigParams(i)); |
917 | } |
918 | fTOFResponse.SetTimeResolution(fTOFPIDParams->GetTOFresolution()); |
919 | |
920 | } |
921 | |
922 | |
ea235c90 |
923 | //_________________________________________________________________________ |
924 | Bool_t AliPIDResponse::IdentifiedAsElectronTRD(const AliVTrack *vtrack, Double_t efficiencyLevel) const { |
925 | // |
926 | // Check whether track is identified as electron under a given electron efficiency hypothesis |
927 | // |
928 | Double_t probs[AliPID::kSPECIES]; |
929 | ComputeTRDProbability(vtrack, AliPID::kSPECIES, probs); |
930 | |
99e9d5ec |
931 | Int_t ntracklets = vtrack->GetTRDntrackletsPID(); |
932 | // Take mean of the TRD momenta in the given tracklets |
933 | Float_t p = 0, trdmomenta[AliVTrack::kTRDnPlanes]; |
934 | Int_t nmomenta = 0; |
ea235c90 |
935 | for(Int_t iPl=0;iPl<AliVTrack::kTRDnPlanes;iPl++){ |
936 | if(vtrack->GetTRDmomentum(iPl) > 0.){ |
99e9d5ec |
937 | trdmomenta[nmomenta++] = vtrack->GetTRDmomentum(iPl); |
ea235c90 |
938 | } |
939 | } |
99e9d5ec |
940 | p = TMath::Mean(nmomenta, trdmomenta); |
ea235c90 |
941 | |
942 | return fTRDResponse.IdentifiedAsElectron(ntracklets, probs, p, efficiencyLevel); |
943 | } |
944 | |
b2138b40 |
945 | //______________________________________________________________________________ |
946 | void AliPIDResponse::SetEMCALPidResponseMaster() |
947 | { |
948 | // |
949 | // Load the EMCAL pid response functions from the OADB |
950 | // |
951 | TObjArray* fEMCALPIDParamsRun = NULL; |
952 | TObjArray* fEMCALPIDParamsPass = NULL; |
953 | |
954 | if(fEMCALPIDParams) return; |
955 | AliOADBContainer contParams("contParams"); |
956 | |
957 | Int_t statusPars = contParams.InitFromFile(Form("%s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data()), "AliEMCALPIDParams"); |
958 | if(statusPars){ |
959 | AliError("Failed initializing PID Params from OADB"); |
960 | } |
961 | else { |
962 | AliInfo(Form("Loading EMCAL Params from %s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data())); |
963 | |
964 | fEMCALPIDParamsRun = dynamic_cast<TObjArray *>(contParams.GetObject(fRun)); |
965 | if(fEMCALPIDParamsRun) fEMCALPIDParamsPass = dynamic_cast<TObjArray *>(fEMCALPIDParamsRun->FindObject(Form("pass%d",fRecoPass))); |
966 | if(fEMCALPIDParamsPass) fEMCALPIDParams = dynamic_cast<TObjArray *>(fEMCALPIDParamsPass->FindObject(Form("EMCALPIDParams_Particles"))); |
967 | |
968 | if(!fEMCALPIDParams){ |
f8d39067 |
969 | AliInfo(Form("EMCAL Params not found in run %d pass %d", fRun, fRecoPass)); |
1f631618 |
970 | AliInfo("Will take the standard LHC11d instead ..."); |
b2138b40 |
971 | |
1f631618 |
972 | fEMCALPIDParamsRun = dynamic_cast<TObjArray *>(contParams.GetObject(156477)); |
973 | if(fEMCALPIDParamsRun) fEMCALPIDParamsPass = dynamic_cast<TObjArray *>(fEMCALPIDParamsRun->FindObject(Form("pass%d",1))); |
b2138b40 |
974 | if(fEMCALPIDParamsPass) fEMCALPIDParams = dynamic_cast<TObjArray *>(fEMCALPIDParamsPass->FindObject(Form("EMCALPIDParams_Particles"))); |
975 | |
976 | if(!fEMCALPIDParams){ |
1f631618 |
977 | AliError(Form("DEFAULT EMCAL Params (LHC11d) not found in file %s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data())); |
b2138b40 |
978 | } |
979 | } |
980 | } |
981 | } |
982 | |
983 | //______________________________________________________________________________ |
984 | void AliPIDResponse::InitializeEMCALResponse(){ |
985 | // |
986 | // Set PID Params to the EMCAL PID response |
987 | // |
988 | fEMCALResponse.SetPIDParams(fEMCALPIDParams); |
989 | |
990 | } |
5f8db5fe |
991 | //_________________________________________________________________________ |
992 | void AliPIDResponse::SetTOFResponse(AliVEvent *vevent,EStartTimeType_t option){ |
993 | // |
994 | // Set TOF response function |
995 | // Input option for event_time used |
996 | // |
997 | |
998 | Float_t t0spread = 0.; //vevent->GetEventTimeSpread(); |
999 | if(t0spread < 10) t0spread = 80; |
1000 | |
1001 | // T0 from TOF algorithm |
1002 | |
1003 | Bool_t flagT0TOF=kFALSE; |
1004 | Bool_t flagT0T0=kFALSE; |
1005 | Float_t *startTime = new Float_t[fTOFResponse.GetNmomBins()]; |
1006 | Float_t *startTimeRes = new Float_t[fTOFResponse.GetNmomBins()]; |
1007 | Int_t *startTimeMask = new Int_t[fTOFResponse.GetNmomBins()]; |
1008 | |
1009 | // T0-TOF arrays |
1010 | Float_t *estimatedT0event = new Float_t[fTOFResponse.GetNmomBins()]; |
1011 | Float_t *estimatedT0resolution = new Float_t[fTOFResponse.GetNmomBins()]; |
1012 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1013 | estimatedT0event[i]=0.0; |
1014 | estimatedT0resolution[i]=0.0; |
1015 | startTimeMask[i] = 0; |
1016 | } |
1017 | |
1018 | Float_t resT0A=75,resT0C=65,resT0AC=55; |
1019 | if(vevent->GetT0TOF()){ // check if T0 detector information is available |
1020 | flagT0T0=kTRUE; |
1021 | } |
1022 | |
1023 | |
1024 | AliTOFHeader *tofHeader = (AliTOFHeader*)vevent->GetTOFHeader(); |
1025 | |
1026 | if (tofHeader) { // read global info and T0-TOF |
1027 | fTOFResponse.SetTimeResolution(tofHeader->GetTOFResolution()); |
1028 | t0spread = tofHeader->GetT0spread(); // read t0 sprad |
1029 | if(t0spread < 10) t0spread = 80; |
1030 | |
1031 | flagT0TOF=kTRUE; |
1032 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ // read T0-TOF default value |
1033 | startTime[i]=tofHeader->GetDefaultEventTimeVal(); |
1034 | startTimeRes[i]=tofHeader->GetDefaultEventTimeRes(); |
1035 | if(startTimeRes[i] < 1.e-5) startTimeRes[i] = t0spread; |
1036 | } |
1037 | |
1038 | TArrayI *ibin=(TArrayI*)tofHeader->GetNvalues(); |
1039 | TArrayF *t0Bin=(TArrayF*)tofHeader->GetEventTimeValues(); |
1040 | TArrayF *t0ResBin=(TArrayF*)tofHeader->GetEventTimeRes(); |
1041 | for(Int_t j=0;j < tofHeader->GetNbins();j++){ // fill T0-TOF in p-bins |
1042 | Int_t icurrent = (Int_t)ibin->GetAt(j); |
1043 | startTime[icurrent]=t0Bin->GetAt(j); |
1044 | startTimeRes[icurrent]=t0ResBin->GetAt(j); |
1045 | if(startTimeRes[icurrent] < 1.e-5) startTimeRes[icurrent] = t0spread; |
1046 | } |
1047 | } |
1048 | |
1049 | // for cut of 3 sigma on t0 spread |
1050 | Float_t t0cut = 3 * t0spread; |
1051 | if(t0cut < 500) t0cut = 500; |
1052 | |
1053 | if(option == kFILL_T0){ // T0-FILL is used |
1054 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1055 | estimatedT0event[i]=0.0; |
1056 | estimatedT0resolution[i]=t0spread; |
1057 | } |
1058 | fTOFResponse.SetT0event(estimatedT0event); |
1059 | fTOFResponse.SetT0resolution(estimatedT0resolution); |
1060 | } |
1061 | |
1062 | if(option == kTOF_T0){ // T0-TOF is used when available (T0-FILL otherwise) from ESD |
1063 | if(flagT0TOF){ |
1064 | fTOFResponse.SetT0event(startTime); |
1065 | fTOFResponse.SetT0resolution(startTimeRes); |
1066 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1067 | if(startTimeRes[i]<t0spread) startTimeMask[i]=1; |
1068 | fTOFResponse.SetT0binMask(i,startTimeMask[i]); |
1069 | } |
1070 | } |
1071 | else{ |
1072 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1073 | estimatedT0event[i]=0.0; |
1074 | estimatedT0resolution[i]=t0spread; |
1075 | fTOFResponse.SetT0binMask(i,startTimeMask[i]); |
1076 | } |
1077 | fTOFResponse.SetT0event(estimatedT0event); |
1078 | fTOFResponse.SetT0resolution(estimatedT0resolution); |
1079 | } |
1080 | } |
1081 | else if(option == kBest_T0){ // T0-T0 or T0-TOF are used when available (T0-FILL otherwise) from ESD |
1082 | Float_t t0AC=-10000; |
1083 | Float_t t0A=-10000; |
1084 | Float_t t0C=-10000; |
1085 | if(flagT0T0){ |
1086 | t0AC= vevent->GetT0TOF()[0]; |
1087 | t0A= vevent->GetT0TOF()[1]; |
1088 | t0C= vevent->GetT0TOF()[2]; |
1089 | } |
1090 | |
1091 | Float_t t0t0Best = 0; |
1092 | Float_t t0t0BestRes = 9999; |
1093 | Int_t t0used=0; |
1094 | if(TMath::Abs(t0A) < t0cut && TMath::Abs(t0C) < t0cut && TMath::Abs(t0C-t0A) < 500){ |
1095 | t0t0Best = t0AC; |
1096 | t0t0BestRes = resT0AC; |
1097 | t0used=6; |
1098 | } |
1099 | else if(TMath::Abs(t0C) < t0cut){ |
1100 | t0t0Best = t0C; |
1101 | t0t0BestRes = resT0C; |
1102 | t0used=4; |
1103 | } |
1104 | else if(TMath::Abs(t0A) < t0cut){ |
1105 | t0t0Best = t0A; |
1106 | t0t0BestRes = resT0A; |
1107 | t0used=2; |
1108 | } |
1109 | |
1110 | if(flagT0TOF){ // if T0-TOF info is available |
1111 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1112 | if(t0t0BestRes < 999){ |
1113 | if(startTimeRes[i] < t0spread){ |
1114 | Double_t wtot = 1./startTimeRes[i]/startTimeRes[i] + 1./t0t0BestRes/t0t0BestRes; |
1115 | Double_t t0best = startTime[i]/startTimeRes[i]/startTimeRes[i] + t0t0Best/t0t0BestRes/t0t0BestRes; |
1116 | estimatedT0event[i]=t0best / wtot; |
1117 | estimatedT0resolution[i]=1./TMath::Sqrt(wtot); |
1118 | startTimeMask[i] = t0used+1; |
1119 | } |
1120 | else { |
1121 | estimatedT0event[i]=t0t0Best; |
1122 | estimatedT0resolution[i]=t0t0BestRes; |
1123 | startTimeMask[i] = t0used; |
1124 | } |
1125 | } |
1126 | else{ |
1127 | estimatedT0event[i]=startTime[i]; |
1128 | estimatedT0resolution[i]=startTimeRes[i]; |
1129 | if(startTimeRes[i]<t0spread) startTimeMask[i]=1; |
1130 | } |
1131 | fTOFResponse.SetT0binMask(i,startTimeMask[i]); |
1132 | } |
1133 | fTOFResponse.SetT0event(estimatedT0event); |
1134 | fTOFResponse.SetT0resolution(estimatedT0resolution); |
1135 | } |
1136 | else{ // if no T0-TOF info is available |
1137 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1138 | fTOFResponse.SetT0binMask(i,t0used); |
1139 | if(t0t0BestRes < 999){ |
1140 | estimatedT0event[i]=t0t0Best; |
1141 | estimatedT0resolution[i]=t0t0BestRes; |
1142 | } |
1143 | else{ |
1144 | estimatedT0event[i]=0.0; |
1145 | estimatedT0resolution[i]=t0spread; |
1146 | } |
1147 | } |
1148 | fTOFResponse.SetT0event(estimatedT0event); |
1149 | fTOFResponse.SetT0resolution(estimatedT0resolution); |
1150 | } |
1151 | } |
1152 | |
1153 | else if(option == kT0_T0){ // T0-T0 is used when available (T0-FILL otherwise) |
1154 | Float_t t0AC=-10000; |
1155 | Float_t t0A=-10000; |
1156 | Float_t t0C=-10000; |
1157 | if(flagT0T0){ |
1158 | t0AC= vevent->GetT0TOF()[0]; |
1159 | t0A= vevent->GetT0TOF()[1]; |
1160 | t0C= vevent->GetT0TOF()[2]; |
1161 | } |
1162 | |
1163 | if(TMath::Abs(t0A) < t0cut && TMath::Abs(t0C) < t0cut && TMath::Abs(t0C-t0A) < 500){ |
1164 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1165 | estimatedT0event[i]=t0AC; |
1166 | estimatedT0resolution[i]=resT0AC; |
1167 | fTOFResponse.SetT0binMask(i,6); |
1168 | } |
1169 | } |
1170 | else if(TMath::Abs(t0C) < t0cut){ |
1171 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1172 | estimatedT0event[i]=t0C; |
1173 | estimatedT0resolution[i]=resT0C; |
1174 | fTOFResponse.SetT0binMask(i,4); |
1175 | } |
1176 | } |
1177 | else if(TMath::Abs(t0A) < t0cut){ |
1178 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1179 | estimatedT0event[i]=t0A; |
1180 | estimatedT0resolution[i]=resT0A; |
1181 | fTOFResponse.SetT0binMask(i,2); |
1182 | } |
1183 | } |
1184 | else{ |
1185 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1186 | estimatedT0event[i]=0.0; |
1187 | estimatedT0resolution[i]=t0spread; |
1188 | fTOFResponse.SetT0binMask(i,0); |
1189 | } |
1190 | } |
1191 | fTOFResponse.SetT0event(estimatedT0event); |
1192 | fTOFResponse.SetT0resolution(estimatedT0resolution); |
1193 | } |
1194 | delete [] startTime; |
1195 | delete [] startTimeRes; |
1196 | delete [] startTimeMask; |
1197 | delete [] estimatedT0event; |
1198 | delete [] estimatedT0resolution; |
1199 | } |