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> |
db0e2c5f |
32 | #include <TArrayF.h> |
4ec8e76d |
33 | |
34 | #include <AliVEvent.h> |
fd21ec8d |
35 | #include <AliVTrack.h> |
4ec8e76d |
36 | #include <AliLog.h> |
37 | #include <AliPID.h> |
ea235c90 |
38 | #include <AliOADBContainer.h> |
db0e2c5f |
39 | #include <AliTRDPIDResponseObject.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), |
db0e2c5f |
70 | fTRDPIDResponseObject(0x0), |
0b39f221 |
71 | fTOFtail(1.1), |
b79db598 |
72 | fTOFPIDParams(0x0), |
b2138b40 |
73 | fEMCALPIDParams(0x0), |
80f28562 |
74 | fCurrentEvent(0x0), |
75 | fCurrCentrality(0.0) |
4ec8e76d |
76 | { |
77 | // |
78 | // default ctor |
79 | // |
a635821f |
80 | AliLog::SetClassDebugLevel("AliPIDResponse",0); |
81 | AliLog::SetClassDebugLevel("AliESDpid",0); |
82 | AliLog::SetClassDebugLevel("AliAODpidUtil",0); |
ea235c90 |
83 | |
84 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); |
4ec8e76d |
85 | } |
86 | |
87 | //______________________________________________________________________________ |
88 | AliPIDResponse::~AliPIDResponse() |
89 | { |
90 | // |
91 | // dtor |
92 | // |
db0e2c5f |
93 | delete fArrPidResponseMaster; |
94 | delete fTRDPIDResponseObject; |
b79db598 |
95 | if (fTOFPIDParams) delete fTOFPIDParams; |
4ec8e76d |
96 | } |
97 | |
98 | //______________________________________________________________________________ |
99 | AliPIDResponse::AliPIDResponse(const AliPIDResponse &other) : |
100 | TNamed(other), |
101 | fITSResponse(other.fITSResponse), |
102 | fTPCResponse(other.fTPCResponse), |
103 | fTRDResponse(other.fTRDResponse), |
104 | fTOFResponse(other.fTOFResponse), |
e96b9916 |
105 | fEMCALResponse(other.fEMCALResponse), |
fd21ec8d |
106 | fRange(other.fRange), |
107 | fITSPIDmethod(other.fITSPIDmethod), |
4ec8e76d |
108 | fIsMC(other.fIsMC), |
109 | fOADBPath(other.fOADBPath), |
110 | fBeamType("PP"), |
111 | fLHCperiod(), |
112 | fMCperiodTPC(), |
fd21ec8d |
113 | fMCperiodUser(other.fMCperiodUser), |
ea235c90 |
114 | fCurrentFile(), |
4ec8e76d |
115 | fRecoPass(0), |
fd21ec8d |
116 | fRecoPassUser(other.fRecoPassUser), |
4ec8e76d |
117 | fRun(0), |
118 | fOldRun(0), |
119 | fArrPidResponseMaster(0x0), |
120 | fResolutionCorrection(0x0), |
db0e2c5f |
121 | fTRDPIDResponseObject(0x0), |
0b39f221 |
122 | fTOFtail(1.1), |
b79db598 |
123 | fTOFPIDParams(0x0), |
b2138b40 |
124 | fEMCALPIDParams(0x0), |
80f28562 |
125 | fCurrentEvent(0x0), |
126 | fCurrCentrality(0.0) |
4ec8e76d |
127 | { |
128 | // |
129 | // copy ctor |
130 | // |
ea235c90 |
131 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); |
4ec8e76d |
132 | } |
133 | |
134 | //______________________________________________________________________________ |
135 | AliPIDResponse& AliPIDResponse::operator=(const AliPIDResponse &other) |
136 | { |
137 | // |
138 | // copy ctor |
139 | // |
140 | if(this!=&other) { |
141 | delete fArrPidResponseMaster; |
142 | TNamed::operator=(other); |
143 | fITSResponse=other.fITSResponse; |
144 | fTPCResponse=other.fTPCResponse; |
145 | fTRDResponse=other.fTRDResponse; |
146 | fTOFResponse=other.fTOFResponse; |
e96b9916 |
147 | fEMCALResponse=other.fEMCALResponse; |
fd21ec8d |
148 | fRange=other.fRange; |
149 | fITSPIDmethod=other.fITSPIDmethod; |
4ec8e76d |
150 | fOADBPath=other.fOADBPath; |
151 | fIsMC=other.fIsMC; |
152 | fBeamType="PP"; |
153 | fLHCperiod=""; |
154 | fMCperiodTPC=""; |
fd21ec8d |
155 | fMCperiodUser=other.fMCperiodUser; |
ea235c90 |
156 | fCurrentFile=""; |
4ec8e76d |
157 | fRecoPass=0; |
fd21ec8d |
158 | fRecoPassUser=other.fRecoPassUser; |
4ec8e76d |
159 | fRun=0; |
160 | fOldRun=0; |
161 | fArrPidResponseMaster=0x0; |
162 | fResolutionCorrection=0x0; |
db0e2c5f |
163 | fTRDPIDResponseObject=0x0; |
b2138b40 |
164 | fEMCALPIDParams=0x0; |
ea235c90 |
165 | memset(fTRDslicesForPID,0,sizeof(UInt_t)*2); |
0b39f221 |
166 | fTOFtail=1.1; |
b79db598 |
167 | fTOFPIDParams=0x0; |
e96b9916 |
168 | fCurrentEvent=other.fCurrentEvent; |
4ec8e76d |
169 | } |
170 | return *this; |
171 | } |
172 | |
fd21ec8d |
173 | //______________________________________________________________________________ |
174 | Float_t AliPIDResponse::NumberOfSigmas(EDetCode detCode, const AliVParticle *track, AliPID::EParticleType type) const |
175 | { |
176 | // |
177 | // NumberOfSigmas for 'detCode' |
178 | // |
179 | |
180 | switch (detCode){ |
181 | case kDetITS: return NumberOfSigmasITS(track, type); break; |
182 | case kDetTPC: return NumberOfSigmasTPC(track, type); break; |
183 | case kDetTOF: return NumberOfSigmasTOF(track, type); break; |
184 | // case kDetTRD: return ComputeTRDProbability(track, type); break; |
185 | // case kDetPHOS: return ComputePHOSProbability(track, type); break; |
e96b9916 |
186 | // case kDetEMCAL: return NumberOfSigmasEMCAL(track, type); break; |
fd21ec8d |
187 | // case kDetHMPID: return ComputeHMPIDProbability(track, type); break; |
188 | default: return -999.; |
189 | } |
190 | |
191 | } |
192 | |
e96b9916 |
193 | //______________________________________________________________________________ |
194 | Float_t AliPIDResponse::NumberOfSigmasEMCAL(const AliVTrack *track, AliPID::EParticleType type) const { |
195 | |
196 | AliVCluster *matchedClus = NULL; |
197 | |
198 | Double_t mom = -1.; |
199 | Double_t pt = -1.; |
200 | Double_t EovP = -1.; |
201 | Double_t fClsE = -1.; |
202 | |
203 | Int_t nMatchClus = -1; |
204 | Int_t charge = 0; |
205 | |
206 | // Track matching |
207 | nMatchClus = track->GetEMCALcluster(); |
208 | if(nMatchClus > -1){ |
6d0064aa |
209 | |
e96b9916 |
210 | mom = track->P(); |
211 | pt = track->Pt(); |
212 | charge = track->Charge(); |
213 | |
214 | matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus); |
215 | |
216 | if(matchedClus){ |
217 | |
6d0064aa |
218 | // matched cluster is EMCAL |
219 | if(matchedClus->IsEMCAL()){ |
220 | |
221 | fClsE = matchedClus->E(); |
222 | EovP = fClsE/mom; |
223 | |
224 | |
225 | // NSigma value really meaningful only for electrons! |
226 | return fEMCALResponse.GetNumberOfSigmas(pt,EovP,type,charge); |
227 | } |
e96b9916 |
228 | } |
229 | } |
6d0064aa |
230 | |
e96b9916 |
231 | return -999; |
232 | |
233 | } |
234 | |
6d0064aa |
235 | //______________________________________________________________________________ |
236 | Float_t AliPIDResponse::NumberOfSigmasEMCAL(const AliVTrack *track, AliPID::EParticleType type, Double_t &eop, Double_t showershape[4]) const { |
237 | |
238 | AliVCluster *matchedClus = NULL; |
239 | |
240 | Double_t mom = -1.; |
241 | Double_t pt = -1.; |
242 | Double_t EovP = -1.; |
243 | Double_t fClsE = -1.; |
244 | |
245 | Int_t nMatchClus = -1; |
246 | Int_t charge = 0; |
247 | |
248 | // Track matching |
249 | nMatchClus = track->GetEMCALcluster(); |
250 | if(nMatchClus > -1){ |
251 | |
252 | mom = track->P(); |
253 | pt = track->Pt(); |
254 | charge = track->Charge(); |
255 | |
256 | matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus); |
257 | |
258 | if(matchedClus){ |
259 | |
260 | // matched cluster is EMCAL |
261 | if(matchedClus->IsEMCAL()){ |
262 | |
263 | fClsE = matchedClus->E(); |
264 | EovP = fClsE/mom; |
265 | |
266 | // fill used EMCAL variables here |
267 | eop = EovP; // E/p |
268 | showershape[0] = matchedClus->GetNCells(); // number of cells in cluster |
269 | showershape[1] = matchedClus->GetM02(); // long axis |
270 | showershape[2] = matchedClus->GetM20(); // short axis |
271 | showershape[3] = matchedClus->GetDispersion(); // dispersion |
272 | |
273 | // NSigma value really meaningful only for electrons! |
274 | return fEMCALResponse.GetNumberOfSigmas(pt,EovP,type,charge); |
275 | } |
276 | } |
277 | } |
278 | return -999; |
279 | } |
280 | |
281 | |
fd21ec8d |
282 | //______________________________________________________________________________ |
283 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePIDProbability (EDetCode detCode, const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
284 | { |
285 | // |
286 | // Compute PID response of 'detCode' |
287 | // |
288 | |
289 | switch (detCode){ |
290 | case kDetITS: return ComputeITSProbability(track, nSpecies, p); break; |
291 | case kDetTPC: return ComputeTPCProbability(track, nSpecies, p); break; |
292 | case kDetTOF: return ComputeTOFProbability(track, nSpecies, p); break; |
293 | case kDetTRD: return ComputeTRDProbability(track, nSpecies, p); break; |
294 | case kDetPHOS: return ComputePHOSProbability(track, nSpecies, p); break; |
295 | case kDetEMCAL: return ComputeEMCALProbability(track, nSpecies, p); break; |
296 | case kDetHMPID: return ComputeHMPIDProbability(track, nSpecies, p); break; |
297 | default: return kDetNoSignal; |
298 | } |
299 | } |
300 | |
301 | //______________________________________________________________________________ |
302 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeITSProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
303 | { |
304 | // |
305 | // Compute PID response for the ITS |
306 | // |
307 | |
308 | // set flat distribution (no decision) |
309 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
310 | |
311 | if ((track->GetStatus()&AliVTrack::kITSin)==0 && |
312 | (track->GetStatus()&AliVTrack::kITSout)==0) return kDetNoSignal; |
313 | |
314 | Double_t mom=track->P(); |
315 | Double_t dedx=track->GetITSsignal(); |
316 | Bool_t isSA=kTRUE; |
317 | Double_t momITS=mom; |
318 | ULong_t trStatus=track->GetStatus(); |
319 | if(trStatus&AliVTrack::kTPCin) isSA=kFALSE; |
320 | UChar_t clumap=track->GetITSClusterMap(); |
321 | Int_t nPointsForPid=0; |
322 | for(Int_t i=2; i<6; i++){ |
323 | if(clumap&(1<<i)) ++nPointsForPid; |
324 | } |
325 | |
326 | if(nPointsForPid<3) { // track not to be used for combined PID purposes |
327 | // track->ResetStatus(AliVTrack::kITSpid); |
328 | return kDetNoSignal; |
329 | } |
330 | |
331 | Bool_t mismatch=kTRUE/*, heavy=kTRUE*/; |
332 | for (Int_t j=0; j<AliPID::kSPECIES; j++) { |
333 | Double_t mass=AliPID::ParticleMass(j);//GeV/c^2 |
334 | Double_t bethe=fITSResponse.Bethe(momITS,mass); |
335 | Double_t sigma=fITSResponse.GetResolution(bethe,nPointsForPid,isSA); |
336 | if (TMath::Abs(dedx-bethe) > fRange*sigma) { |
337 | p[j]=TMath::Exp(-0.5*fRange*fRange)/sigma; |
338 | } else { |
339 | p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma; |
340 | mismatch=kFALSE; |
341 | } |
342 | |
343 | // Check for particles heavier than (AliPID::kSPECIES - 1) |
344 | // if (dedx < (bethe + fRange*sigma)) heavy=kFALSE; |
345 | |
346 | } |
347 | |
348 | if (mismatch){ |
349 | for (Int_t j=0; j<AliPID::kSPECIES; j++) p[j]=1./AliPID::kSPECIES; |
350 | return kDetNoSignal; |
351 | } |
352 | |
353 | |
354 | return kDetPidOk; |
355 | } |
356 | //______________________________________________________________________________ |
357 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTPCProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
358 | { |
359 | // |
360 | // Compute PID response for the TPC |
361 | // |
362 | |
363 | // set flat distribution (no decision) |
364 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
365 | |
366 | // check quality of the track |
367 | if ( (track->GetStatus()&AliVTrack::kTPCin )==0 && (track->GetStatus()&AliVTrack::kTPCout)==0 ) return kDetNoSignal; |
368 | |
369 | Double_t mom = track->GetTPCmomentum(); |
370 | |
371 | Double_t dedx=track->GetTPCsignal(); |
372 | Bool_t mismatch=kTRUE/*, heavy=kTRUE*/; |
373 | |
374 | for (Int_t j=0; j<AliPID::kSPECIES; j++) { |
375 | AliPID::EParticleType type=AliPID::EParticleType(j); |
376 | Double_t bethe=fTPCResponse.GetExpectedSignal(mom,type); |
377 | Double_t sigma=fTPCResponse.GetExpectedSigma(mom,track->GetTPCsignalN(),type); |
378 | if (TMath::Abs(dedx-bethe) > fRange*sigma) { |
379 | p[j]=TMath::Exp(-0.5*fRange*fRange)/sigma; |
380 | } else { |
381 | p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma; |
382 | mismatch=kFALSE; |
383 | } |
384 | |
385 | // TODO: Light nuclei, also in TPC pid response |
386 | |
387 | // Check for particles heavier than (AliPID::kSPECIES - 1) |
388 | // if (dedx < (bethe + fRange*sigma)) heavy=kFALSE; |
389 | |
390 | } |
391 | |
392 | if (mismatch){ |
393 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
394 | return kDetNoSignal; |
395 | } |
396 | |
397 | return kDetPidOk; |
398 | } |
399 | //______________________________________________________________________________ |
400 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTOFProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
401 | { |
402 | // |
403 | // Compute PID response for the |
404 | // |
405 | |
0b39f221 |
406 | Double_t meanCorrFactor = 0.11/fTOFtail; // Correction factor on the mean because of the tail (should be ~ 0.1 with tail = 1.1) |
407 | |
fd21ec8d |
408 | // set flat distribution (no decision) |
409 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
410 | |
411 | if ((track->GetStatus()&AliVTrack::kTOFout)==0) return kDetNoSignal; |
412 | if ((track->GetStatus()&AliVTrack::kTIME)==0) return kDetNoSignal; |
413 | |
414 | Double_t time[AliPID::kSPECIESN]; |
415 | track->GetIntegratedTimes(time); |
416 | |
67376d1d |
417 | // Double_t sigma[AliPID::kSPECIES]; |
418 | // for (Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++) { |
419 | // sigma[iPart] = fTOFResponse.GetExpectedSigma(track->P(),time[iPart],AliPID::ParticleMass(iPart)); |
420 | // } |
fd21ec8d |
421 | |
422 | Bool_t mismatch = kTRUE/*, heavy = kTRUE*/; |
423 | for (Int_t j=0; j<AliPID::kSPECIES; j++) { |
424 | AliPID::EParticleType type=AliPID::EParticleType(j); |
0b39f221 |
425 | Double_t nsigmas=NumberOfSigmasTOF(track,type) + meanCorrFactor; |
426 | |
67376d1d |
427 | // Double_t sig = sigma[j]; |
428 | Double_t expTime = fTOFResponse.GetExpectedSignal(track,type); |
429 | Double_t sig = fTOFResponse.GetExpectedSigma(track->P(),expTime,AliPID::ParticleMassZ(type)); |
0b39f221 |
430 | if (TMath::Abs(nsigmas) > (fRange+2)) { |
431 | if(nsigmas < fTOFtail) |
432 | p[j] = TMath::Exp(-0.5*(fRange+2)*(fRange+2))/sig; |
433 | else |
434 | p[j] = TMath::Exp(-(fRange+2 - fTOFtail*0.5)*fTOFtail)/sig; |
435 | } else{ |
436 | if(nsigmas < fTOFtail) |
437 | p[j] = TMath::Exp(-0.5*nsigmas*nsigmas)/sig; |
438 | else |
439 | p[j] = TMath::Exp(-(nsigmas - fTOFtail*0.5)*fTOFtail)/sig; |
440 | } |
441 | |
442 | /* OLD Gaussian shape |
fd21ec8d |
443 | if (TMath::Abs(nsigmas) > (fRange+2)) { |
444 | p[j] = TMath::Exp(-0.5*(fRange+2)*(fRange+2))/sig; |
445 | } else |
446 | p[j] = TMath::Exp(-0.5*nsigmas*nsigmas)/sig; |
0b39f221 |
447 | */ |
fd21ec8d |
448 | |
449 | if (TMath::Abs(nsigmas)<5.){ |
450 | Double_t nsigmasTPC=NumberOfSigmasTPC(track,type); |
451 | if (TMath::Abs(nsigmasTPC)<5.) mismatch=kFALSE; |
452 | } |
453 | } |
454 | |
455 | if (mismatch){ |
456 | return kDetMismatch; |
457 | } |
458 | |
459 | // TODO: Light nuclei |
460 | |
461 | return kDetPidOk; |
462 | } |
463 | //______________________________________________________________________________ |
ea235c90 |
464 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeTRDProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
fd21ec8d |
465 | { |
466 | // |
467 | // Compute PID response for the |
468 | // |
469 | |
470 | // set flat distribution (no decision) |
471 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
ea235c90 |
472 | if((track->GetStatus()&AliVTrack::kTRDout)==0) return kDetNoSignal; |
473 | |
474 | Float_t mom[6]; |
475 | Double_t dedx[48]; // Allocate space for the maximum number of TRD slices |
476 | Int_t nslices = fTRDslicesForPID[1] - fTRDslicesForPID[0] + 1; |
477 | AliDebug(1, Form("First Slice: %d, Last Slice: %d, Number of slices: %d", fTRDslicesForPID[0], fTRDslicesForPID[1], nslices)); |
478 | for(UInt_t ilayer = 0; ilayer < 6; ilayer++){ |
479 | mom[ilayer] = track->GetTRDmomentum(ilayer); |
480 | for(UInt_t islice = fTRDslicesForPID[0]; islice <= fTRDslicesForPID[1]; islice++){ |
481 | dedx[ilayer*nslices+islice-fTRDslicesForPID[0]] = track->GetTRDslice(ilayer, islice); |
482 | } |
483 | } |
484 | fTRDResponse.GetResponse(nslices, dedx, mom, p); |
485 | return kDetPidOk; |
fd21ec8d |
486 | } |
487 | //______________________________________________________________________________ |
e96b9916 |
488 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeEMCALProbability (const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
fd21ec8d |
489 | { |
490 | // |
491 | // Compute PID response for the EMCAL |
492 | // |
493 | |
e96b9916 |
494 | AliVCluster *matchedClus = NULL; |
495 | |
496 | Double_t mom = -1.; |
497 | Double_t pt = -1.; |
498 | Double_t EovP = -1.; |
499 | Double_t fClsE = -1.; |
500 | |
501 | Int_t nMatchClus = -1; |
502 | Int_t charge = 0; |
503 | |
504 | // Track matching |
505 | nMatchClus = track->GetEMCALcluster(); |
506 | |
507 | if(nMatchClus > -1){ |
508 | |
509 | mom = track->P(); |
510 | pt = track->Pt(); |
511 | charge = track->Charge(); |
512 | |
513 | matchedClus = (AliVCluster*)fCurrentEvent->GetCaloCluster(nMatchClus); |
514 | |
515 | if(matchedClus){ |
516 | |
517 | // matched cluster is EMCAL |
518 | if(matchedClus->IsEMCAL()){ |
519 | |
520 | fClsE = matchedClus->E(); |
521 | EovP = fClsE/mom; |
522 | |
523 | |
524 | // compute the probabilities |
525 | if( 999 != fEMCALResponse.ComputeEMCALProbability(pt,EovP,charge,p)){ |
526 | |
527 | // in case everything is OK |
528 | return kDetPidOk; |
529 | |
530 | } |
531 | } |
532 | } |
533 | } |
534 | |
535 | // in all other cases set flat distribution (no decision) |
fd21ec8d |
536 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
537 | return kDetNoSignal; |
e96b9916 |
538 | |
fd21ec8d |
539 | } |
540 | //______________________________________________________________________________ |
541 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputePHOSProbability (const AliVTrack */*track*/, Int_t nSpecies, Double_t p[]) const |
542 | { |
543 | // |
544 | // Compute PID response for the PHOS |
545 | // |
546 | |
547 | // set flat distribution (no decision) |
548 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
549 | return kDetNoSignal; |
550 | } |
551 | //______________________________________________________________________________ |
ea235c90 |
552 | AliPIDResponse::EDetPidStatus AliPIDResponse::ComputeHMPIDProbability(const AliVTrack *track, Int_t nSpecies, Double_t p[]) const |
fd21ec8d |
553 | { |
554 | // |
555 | // Compute PID response for the HMPID |
556 | // |
557 | |
558 | // set flat distribution (no decision) |
559 | for (Int_t j=0; j<nSpecies; j++) p[j]=1./nSpecies; |
ea235c90 |
560 | if((track->GetStatus()&AliVTrack::kHMPIDpid)==0) return kDetNoSignal; |
561 | |
562 | track->GetHMPIDpid(p); |
563 | |
564 | return kDetPidOk; |
fd21ec8d |
565 | } |
566 | |
4ec8e76d |
567 | //______________________________________________________________________________ |
568 | void AliPIDResponse::InitialiseEvent(AliVEvent *event, Int_t pass) |
569 | { |
570 | // |
571 | // Apply settings for the current event |
572 | // |
573 | fRecoPass=pass; |
e96b9916 |
574 | |
575 | fCurrentEvent=0x0; |
4ec8e76d |
576 | if (!event) return; |
e96b9916 |
577 | fCurrentEvent=event; |
4ec8e76d |
578 | fRun=event->GetRunNumber(); |
579 | |
580 | if (fRun!=fOldRun){ |
581 | ExecNewRun(); |
582 | fOldRun=fRun; |
583 | } |
584 | |
585 | //TPC resolution parametrisation PbPb |
586 | if ( fResolutionCorrection ){ |
587 | Double_t corrSigma=fResolutionCorrection->Eval(GetTPCMultiplicityBin(event)); |
588 | fTPCResponse.SetSigma(3.79301e-03*corrSigma, 2.21280e+04); |
589 | } |
590 | |
591 | //TOF resolution |
b79db598 |
592 | SetTOFResponse(event, (AliPIDResponse::EStartTimeType_t)fTOFPIDParams->GetStartTimeMethod()); |
593 | |
80f28562 |
594 | |
595 | // Get and set centrality |
596 | AliCentrality *centrality = event->GetCentrality(); |
597 | if(centrality){ |
598 | fCurrCentrality = centrality->GetCentralityPercentile("V0M"); |
599 | } |
600 | else{ |
601 | fCurrCentrality = -1; |
602 | } |
4ec8e76d |
603 | } |
604 | |
605 | //______________________________________________________________________________ |
606 | void AliPIDResponse::ExecNewRun() |
607 | { |
608 | // |
609 | // Things to Execute upon a new run |
610 | // |
611 | SetRecoInfo(); |
612 | |
613 | SetITSParametrisation(); |
614 | |
615 | SetTPCPidResponseMaster(); |
616 | SetTPCParametrisation(); |
53d016dc |
617 | |
618 | SetTRDPidResponseMaster(); |
619 | InitializeTRDResponse(); |
b2138b40 |
620 | |
621 | SetEMCALPidResponseMaster(); |
622 | InitializeEMCALResponse(); |
4ec8e76d |
623 | |
b79db598 |
624 | SetTOFPidResponseMaster(); |
625 | InitializeTOFResponse(); |
4ec8e76d |
626 | } |
627 | |
628 | //_____________________________________________________ |
629 | Double_t AliPIDResponse::GetTPCMultiplicityBin(const AliVEvent * const event) |
630 | { |
631 | // |
632 | // Get TPC multiplicity in bins of 150 |
633 | // |
634 | |
635 | const AliVVertex* vertexTPC = event->GetPrimaryVertex(); |
636 | Double_t tpcMulti=0.; |
637 | if(vertexTPC){ |
638 | Double_t vertexContribTPC=vertexTPC->GetNContributors(); |
639 | tpcMulti=vertexContribTPC/150.; |
640 | if (tpcMulti>20.) tpcMulti=20.; |
641 | } |
642 | |
643 | return tpcMulti; |
644 | } |
645 | |
646 | //______________________________________________________________________________ |
647 | void AliPIDResponse::SetRecoInfo() |
648 | { |
649 | // |
650 | // Set reconstruction information |
651 | // |
652 | |
653 | //reset information |
654 | fLHCperiod=""; |
655 | fMCperiodTPC=""; |
656 | |
657 | fBeamType=""; |
658 | |
659 | fBeamType="PP"; |
660 | |
1436d6bb |
661 | |
662 | TPRegexp reg(".*(LHC1[1-2][a-z]+[0-9]+[a-z_]*)/.*"); |
663 | |
4ec8e76d |
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"; } |
99e9d5ec |
668 | else if (fRun>=127710&&fRun<=130850) { fLHCperiod="LHC10E"; fMCperiodTPC="LHC10F6A"; } |
4ec8e76d |
669 | else if (fRun>=133004&&fRun<=135029) { fLHCperiod="LHC10F"; fMCperiodTPC="LHC10F6A"; } |
670 | else if (fRun>=135654&&fRun<=136377) { fLHCperiod="LHC10G"; fMCperiodTPC="LHC10F6A"; } |
ea235c90 |
671 | else if (fRun>=136851&&fRun<=139517) { |
672 | fLHCperiod="LHC10H"; |
673 | fMCperiodTPC="LHC10H8"; |
674 | if (reg.MatchB(fCurrentFile)) fMCperiodTPC="LHC11A10"; |
675 | fBeamType="PBPB"; |
676 | } |
3077a03d |
677 | else if (fRun>=139699&&fRun<=146860) { fLHCperiod="LHC11A"; fMCperiodTPC="LHC10F6A"; } |
2e97a211 |
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"; } |
3077a03d |
681 | else if (fRun>=166529) { |
682 | fLHCperiod="LHC11H"; |
683 | fMCperiodTPC="LHC11A10"; |
684 | fBeamType="PBPB"; |
685 | } |
686 | |
80ab5635 |
687 | |
688 | //exception new pp MC productions from 2011 |
689 | if (fBeamType=="PP" && reg.MatchB(fCurrentFile)) fMCperiodTPC="LHC11B2"; |
4a527e08 |
690 | // exception for 11f1 |
691 | if (fCurrentFile.Contains("LHC11f1/")) fMCperiodTPC="LHC11F1"; |
4ec8e76d |
692 | } |
693 | |
694 | //______________________________________________________________________________ |
695 | void AliPIDResponse::SetITSParametrisation() |
696 | { |
697 | // |
698 | // Set the ITS parametrisation |
699 | // |
700 | } |
701 | |
702 | //______________________________________________________________________________ |
703 | void AliPIDResponse::SetTPCPidResponseMaster() |
704 | { |
705 | // |
706 | // Load the TPC pid response functions from the OADB |
707 | // |
09b50a42 |
708 | //don't load twice for the moment |
709 | if (fArrPidResponseMaster) return; |
710 | |
711 | |
4ec8e76d |
712 | //reset the PID response functions |
713 | delete fArrPidResponseMaster; |
714 | fArrPidResponseMaster=0x0; |
715 | |
716 | TString fileName(Form("%s/COMMON/PID/data/TPCPIDResponse.root", fOADBPath.Data())); |
717 | |
ea235c90 |
718 | TFile *f=TFile::Open(fileName.Data()); |
719 | if (f && f->IsOpen() && !f->IsZombie()){ |
720 | fArrPidResponseMaster=dynamic_cast<TObjArray*>(f->Get("TPCPIDResponse")); |
4ec8e76d |
721 | } |
ea235c90 |
722 | delete f; |
4ec8e76d |
723 | |
724 | if (!fArrPidResponseMaster){ |
725 | AliFatal(Form("Could not retrieve the TPC pid response from: %s",fileName.Data())); |
726 | return; |
727 | } |
728 | fArrPidResponseMaster->SetOwner(); |
729 | } |
730 | |
731 | //______________________________________________________________________________ |
732 | void AliPIDResponse::SetTPCParametrisation() |
733 | { |
734 | // |
735 | // Change BB parametrisation for current run |
736 | // |
737 | |
738 | if (fLHCperiod.IsNull()) { |
739 | AliFatal("No period set, not changing parametrisation"); |
740 | return; |
741 | } |
742 | |
743 | // |
744 | // Set default parametrisations for data and MC |
745 | // |
746 | |
747 | //data type |
748 | TString datatype="DATA"; |
749 | //in case of mc fRecoPass is per default 1 |
750 | if (fIsMC) { |
751 | datatype="MC"; |
752 | fRecoPass=1; |
753 | } |
754 | |
755 | // |
756 | //reset old splines |
757 | // |
758 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ |
759 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,0x0); |
760 | } |
4a527e08 |
761 | |
762 | // period |
763 | TString period=fLHCperiod; |
764 | if (fIsMC) period=fMCperiodTPC; |
765 | |
766 | AliInfo(Form("Searching splines for: %s %s PASS%d %s",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); |
767 | Bool_t found=kFALSE; |
4ec8e76d |
768 | // |
769 | //set the new PID splines |
770 | // |
4ec8e76d |
771 | if (fArrPidResponseMaster){ |
772 | TObject *grAll=0x0; |
773 | //for MC don't use period information |
774 | // if (fIsMC) period="[A-Z0-9]*"; |
775 | //for MC use MC period information |
4ec8e76d |
776 | //pattern for the default entry (valid for all particles) |
777 | TPRegexp reg(Form("TSPLINE3_%s_([A-Z]*)_%s_PASS%d_%s_MEAN",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); |
778 | |
779 | //loop over entries and filter them |
780 | for (Int_t iresp=0; iresp<fArrPidResponseMaster->GetEntriesFast();++iresp){ |
781 | TObject *responseFunction=fArrPidResponseMaster->At(iresp); |
782 | if (responseFunction==0x0) continue; |
783 | TString responseName=responseFunction->GetName(); |
784 | |
785 | if (!reg.MatchB(responseName)) continue; |
786 | |
787 | TObjArray *arr=reg.MatchS(responseName); |
788 | TString particleName=arr->At(1)->GetName(); |
789 | delete arr; |
790 | if (particleName.IsNull()) continue; |
791 | if (particleName=="ALL") grAll=responseFunction; |
792 | else { |
793 | //find particle id |
794 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ |
795 | TString particle=AliPID::ParticleName(ispec); |
796 | particle.ToUpper(); |
797 | if ( particle == particleName ){ |
798 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,responseFunction); |
799 | fTPCResponse.SetUseDatabase(kTRUE); |
800 | AliInfo(Form("Adding graph: %d - %s",ispec,responseFunction->GetName())); |
4a527e08 |
801 | found=kTRUE; |
4ec8e76d |
802 | break; |
803 | } |
804 | } |
805 | } |
806 | } |
807 | |
808 | //set default response function to all particles which don't have a specific one |
809 | if (grAll){ |
810 | for (Int_t ispec=0; ispec<AliPID::kSPECIES; ++ispec){ |
811 | if (!fTPCResponse.GetResponseFunction((AliPID::EParticleType)ispec)){ |
812 | fTPCResponse.SetResponseFunction((AliPID::EParticleType)ispec,grAll); |
813 | AliInfo(Form("Adding graph: %d - %s",ispec,grAll->GetName())); |
4a527e08 |
814 | found=kTRUE; |
4ec8e76d |
815 | } |
816 | } |
817 | } |
818 | } |
4a527e08 |
819 | |
820 | if (!found){ |
821 | AliError(Form("No splines found for: %s %s PASS%d %s",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); |
822 | } |
4ec8e76d |
823 | // |
824 | // Setup resolution parametrisation |
825 | // |
826 | |
827 | //default |
828 | fTPCResponse.SetSigma(3.79301e-03, 2.21280e+04); |
829 | |
830 | if (fRun>=122195){ |
831 | fTPCResponse.SetSigma(2.30176e-02, 5.60422e+02); |
832 | } |
23425eb2 |
833 | if (fArrPidResponseMaster) |
4ec8e76d |
834 | fResolutionCorrection=(TF1*)fArrPidResponseMaster->FindObject(Form("TF1_%s_ALL_%s_PASS%d_%s_SIGMA",datatype.Data(),period.Data(),fRecoPass,fBeamType.Data())); |
835 | |
836 | if (fResolutionCorrection) AliInfo(Form("Setting multiplicity correction function: %s",fResolutionCorrection->GetName())); |
837 | } |
838 | |
ea235c90 |
839 | //______________________________________________________________________________ |
840 | void AliPIDResponse::SetTRDPidResponseMaster() |
841 | { |
842 | // |
843 | // Load the TRD pid params and references from the OADB |
844 | // |
db0e2c5f |
845 | if(fTRDPIDResponseObject) return; |
53d016dc |
846 | AliOADBContainer contParams("contParams"); |
847 | |
db0e2c5f |
848 | Int_t statusResponse = contParams.InitFromFile(Form("%s/COMMON/PID/data/TRDPIDResponse.root", fOADBPath.Data()), "AliTRDPIDResponseObject"); |
849 | if(statusResponse){ |
850 | AliError("Failed initializing PID Response Object from OADB"); |
59a8e853 |
851 | } else { |
db0e2c5f |
852 | AliInfo(Form("Loading TRD Response from %s/COMMON/PID/data/TRDPIDResponse.root", fOADBPath.Data())); |
853 | fTRDPIDResponseObject = dynamic_cast<AliTRDPIDResponseObject *>(contParams.GetObject(fRun)); |
854 | if(!fTRDPIDResponseObject){ |
855 | AliError(Form("TRD Response not found in run %d", fRun)); |
59a8e853 |
856 | } |
857 | } |
db0e2c5f |
858 | /* |
53d016dc |
859 | AliOADBContainer contRefs("contRefs"); |
59a8e853 |
860 | Int_t statusRefs = contRefs.InitFromFile(Form("%s/COMMON/PID/data/TRDPIDReferenceLQ1D.root", fOADBPath.Data()), "AliTRDPIDReference"); |
861 | if(statusRefs){ |
862 | AliInfo("Failed Loading References for TRD"); |
863 | } else { |
864 | AliInfo(Form("Loading TRD References from %s/COMMON/PID/data/TRDPIDReferenceLQ1D.root", fOADBPath.Data())); |
865 | fTRDPIDReference = dynamic_cast<AliTRDPIDReference *>(contRefs.GetObject(fRun)); |
866 | if(!fTRDPIDReference){ |
867 | AliError(Form("TRD References not found in OADB Container for run %d", fRun)); |
868 | } |
db0e2c5f |
869 | } |
870 | */ |
ea235c90 |
871 | } |
872 | |
873 | //______________________________________________________________________________ |
874 | void AliPIDResponse::InitializeTRDResponse(){ |
875 | // |
876 | // Set PID Params and references to the TRD PID response |
877 | // |
db0e2c5f |
878 | fTRDResponse.SetPIDResponseObject(fTRDPIDResponseObject); |
879 | if(fLHCperiod == "LHC10b" || fLHCperiod == "LHC10c" || fLHCperiod == "LHC10d" || fLHCperiod == "LHC10e"){ |
880 | fTRDslicesForPID[0] = 0; |
881 | fTRDslicesForPID[1] = 7; |
882 | } |
ea235c90 |
883 | } |
884 | |
b79db598 |
885 | //______________________________________________________________________________ |
886 | void AliPIDResponse::SetTOFPidResponseMaster() |
887 | { |
888 | // |
889 | // Load the TOF pid params from the OADB |
890 | // |
891 | TFile *oadbf = new TFile(Form("%s/COMMON/PID/data/TOFPIDParams.root",fOADBPath.Data())); |
892 | if (oadbf->IsOpen()) { |
893 | AliInfo(Form("Loading TOF Params from %s/COMMON/PID/data/TOFPIDParams.root", fOADBPath.Data())); |
894 | AliOADBContainer *oadbc = (AliOADBContainer *)oadbf->Get("TOFoadb"); |
895 | if (fTOFPIDParams) delete fTOFPIDParams; |
f57f1e18 |
896 | fTOFPIDParams = dynamic_cast<AliTOFPIDParams *>(oadbc->GetObject(fRun,"TOFparams")); |
b79db598 |
897 | oadbf->Close(); |
898 | delete oadbc; |
899 | } else { |
900 | AliError(Form("TOFPIDParams.root not found in %s/COMMON/PID/data !!",fOADBPath.Data())); |
901 | } |
902 | delete oadbf; |
903 | |
904 | } |
905 | |
906 | //______________________________________________________________________________ |
907 | void AliPIDResponse::InitializeTOFResponse(){ |
908 | // |
909 | // Set PID Params to the TOF PID response |
910 | // |
b79db598 |
911 | for (Int_t i=0;i<4;i++) { |
912 | fTOFResponse.SetTrackParameter(i,fTOFPIDParams->GetSigParams(i)); |
913 | } |
914 | fTOFResponse.SetTimeResolution(fTOFPIDParams->GetTOFresolution()); |
915 | |
916 | } |
917 | |
918 | |
ea235c90 |
919 | //_________________________________________________________________________ |
920 | Bool_t AliPIDResponse::IdentifiedAsElectronTRD(const AliVTrack *vtrack, Double_t efficiencyLevel) const { |
921 | // |
922 | // Check whether track is identified as electron under a given electron efficiency hypothesis |
923 | // |
924 | Double_t probs[AliPID::kSPECIES]; |
925 | ComputeTRDProbability(vtrack, AliPID::kSPECIES, probs); |
926 | |
99e9d5ec |
927 | Int_t ntracklets = vtrack->GetTRDntrackletsPID(); |
928 | // Take mean of the TRD momenta in the given tracklets |
929 | Float_t p = 0, trdmomenta[AliVTrack::kTRDnPlanes]; |
930 | Int_t nmomenta = 0; |
ea235c90 |
931 | for(Int_t iPl=0;iPl<AliVTrack::kTRDnPlanes;iPl++){ |
932 | if(vtrack->GetTRDmomentum(iPl) > 0.){ |
99e9d5ec |
933 | trdmomenta[nmomenta++] = vtrack->GetTRDmomentum(iPl); |
ea235c90 |
934 | } |
935 | } |
99e9d5ec |
936 | p = TMath::Mean(nmomenta, trdmomenta); |
ea235c90 |
937 | |
938 | return fTRDResponse.IdentifiedAsElectron(ntracklets, probs, p, efficiencyLevel); |
939 | } |
940 | |
b2138b40 |
941 | //______________________________________________________________________________ |
942 | void AliPIDResponse::SetEMCALPidResponseMaster() |
943 | { |
944 | // |
945 | // Load the EMCAL pid response functions from the OADB |
946 | // |
947 | TObjArray* fEMCALPIDParamsRun = NULL; |
948 | TObjArray* fEMCALPIDParamsPass = NULL; |
949 | |
950 | if(fEMCALPIDParams) return; |
951 | AliOADBContainer contParams("contParams"); |
952 | |
953 | Int_t statusPars = contParams.InitFromFile(Form("%s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data()), "AliEMCALPIDParams"); |
954 | if(statusPars){ |
955 | AliError("Failed initializing PID Params from OADB"); |
956 | } |
957 | else { |
958 | AliInfo(Form("Loading EMCAL Params from %s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data())); |
959 | |
960 | fEMCALPIDParamsRun = dynamic_cast<TObjArray *>(contParams.GetObject(fRun)); |
961 | if(fEMCALPIDParamsRun) fEMCALPIDParamsPass = dynamic_cast<TObjArray *>(fEMCALPIDParamsRun->FindObject(Form("pass%d",fRecoPass))); |
962 | if(fEMCALPIDParamsPass) fEMCALPIDParams = dynamic_cast<TObjArray *>(fEMCALPIDParamsPass->FindObject(Form("EMCALPIDParams_Particles"))); |
963 | |
964 | if(!fEMCALPIDParams){ |
f8d39067 |
965 | AliInfo(Form("EMCAL Params not found in run %d pass %d", fRun, fRecoPass)); |
1f631618 |
966 | AliInfo("Will take the standard LHC11d instead ..."); |
b2138b40 |
967 | |
1f631618 |
968 | fEMCALPIDParamsRun = dynamic_cast<TObjArray *>(contParams.GetObject(156477)); |
969 | if(fEMCALPIDParamsRun) fEMCALPIDParamsPass = dynamic_cast<TObjArray *>(fEMCALPIDParamsRun->FindObject(Form("pass%d",1))); |
b2138b40 |
970 | if(fEMCALPIDParamsPass) fEMCALPIDParams = dynamic_cast<TObjArray *>(fEMCALPIDParamsPass->FindObject(Form("EMCALPIDParams_Particles"))); |
971 | |
972 | if(!fEMCALPIDParams){ |
1f631618 |
973 | AliError(Form("DEFAULT EMCAL Params (LHC11d) not found in file %s/COMMON/PID/data/EMCALPIDParams.root", fOADBPath.Data())); |
b2138b40 |
974 | } |
975 | } |
976 | } |
977 | } |
978 | |
979 | //______________________________________________________________________________ |
980 | void AliPIDResponse::InitializeEMCALResponse(){ |
981 | // |
982 | // Set PID Params to the EMCAL PID response |
983 | // |
984 | fEMCALResponse.SetPIDParams(fEMCALPIDParams); |
985 | |
986 | } |
5f8db5fe |
987 | //_________________________________________________________________________ |
988 | void AliPIDResponse::SetTOFResponse(AliVEvent *vevent,EStartTimeType_t option){ |
989 | // |
990 | // Set TOF response function |
991 | // Input option for event_time used |
992 | // |
993 | |
994 | Float_t t0spread = 0.; //vevent->GetEventTimeSpread(); |
995 | if(t0spread < 10) t0spread = 80; |
996 | |
997 | // T0 from TOF algorithm |
998 | |
999 | Bool_t flagT0TOF=kFALSE; |
1000 | Bool_t flagT0T0=kFALSE; |
1001 | Float_t *startTime = new Float_t[fTOFResponse.GetNmomBins()]; |
1002 | Float_t *startTimeRes = new Float_t[fTOFResponse.GetNmomBins()]; |
1003 | Int_t *startTimeMask = new Int_t[fTOFResponse.GetNmomBins()]; |
1004 | |
1005 | // T0-TOF arrays |
1006 | Float_t *estimatedT0event = new Float_t[fTOFResponse.GetNmomBins()]; |
1007 | Float_t *estimatedT0resolution = new Float_t[fTOFResponse.GetNmomBins()]; |
1008 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1009 | estimatedT0event[i]=0.0; |
1010 | estimatedT0resolution[i]=0.0; |
1011 | startTimeMask[i] = 0; |
1012 | } |
1013 | |
1014 | Float_t resT0A=75,resT0C=65,resT0AC=55; |
1015 | if(vevent->GetT0TOF()){ // check if T0 detector information is available |
1016 | flagT0T0=kTRUE; |
1017 | } |
1018 | |
1019 | |
1020 | AliTOFHeader *tofHeader = (AliTOFHeader*)vevent->GetTOFHeader(); |
1021 | |
1022 | if (tofHeader) { // read global info and T0-TOF |
1023 | fTOFResponse.SetTimeResolution(tofHeader->GetTOFResolution()); |
1024 | t0spread = tofHeader->GetT0spread(); // read t0 sprad |
1025 | if(t0spread < 10) t0spread = 80; |
1026 | |
1027 | flagT0TOF=kTRUE; |
1028 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ // read T0-TOF default value |
1029 | startTime[i]=tofHeader->GetDefaultEventTimeVal(); |
1030 | startTimeRes[i]=tofHeader->GetDefaultEventTimeRes(); |
1031 | if(startTimeRes[i] < 1.e-5) startTimeRes[i] = t0spread; |
1032 | } |
1033 | |
1034 | TArrayI *ibin=(TArrayI*)tofHeader->GetNvalues(); |
1035 | TArrayF *t0Bin=(TArrayF*)tofHeader->GetEventTimeValues(); |
1036 | TArrayF *t0ResBin=(TArrayF*)tofHeader->GetEventTimeRes(); |
1037 | for(Int_t j=0;j < tofHeader->GetNbins();j++){ // fill T0-TOF in p-bins |
1038 | Int_t icurrent = (Int_t)ibin->GetAt(j); |
1039 | startTime[icurrent]=t0Bin->GetAt(j); |
1040 | startTimeRes[icurrent]=t0ResBin->GetAt(j); |
1041 | if(startTimeRes[icurrent] < 1.e-5) startTimeRes[icurrent] = t0spread; |
1042 | } |
1043 | } |
1044 | |
1045 | // for cut of 3 sigma on t0 spread |
1046 | Float_t t0cut = 3 * t0spread; |
1047 | if(t0cut < 500) t0cut = 500; |
1048 | |
1049 | if(option == kFILL_T0){ // T0-FILL is used |
1050 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1051 | estimatedT0event[i]=0.0; |
1052 | estimatedT0resolution[i]=t0spread; |
1053 | } |
1054 | fTOFResponse.SetT0event(estimatedT0event); |
1055 | fTOFResponse.SetT0resolution(estimatedT0resolution); |
1056 | } |
1057 | |
1058 | if(option == kTOF_T0){ // T0-TOF is used when available (T0-FILL otherwise) from ESD |
1059 | if(flagT0TOF){ |
1060 | fTOFResponse.SetT0event(startTime); |
1061 | fTOFResponse.SetT0resolution(startTimeRes); |
1062 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1063 | if(startTimeRes[i]<t0spread) startTimeMask[i]=1; |
1064 | fTOFResponse.SetT0binMask(i,startTimeMask[i]); |
1065 | } |
1066 | } |
1067 | else{ |
1068 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1069 | estimatedT0event[i]=0.0; |
1070 | estimatedT0resolution[i]=t0spread; |
1071 | fTOFResponse.SetT0binMask(i,startTimeMask[i]); |
1072 | } |
1073 | fTOFResponse.SetT0event(estimatedT0event); |
1074 | fTOFResponse.SetT0resolution(estimatedT0resolution); |
1075 | } |
1076 | } |
1077 | else if(option == kBest_T0){ // T0-T0 or T0-TOF are used when available (T0-FILL otherwise) from ESD |
1078 | Float_t t0AC=-10000; |
1079 | Float_t t0A=-10000; |
1080 | Float_t t0C=-10000; |
1081 | if(flagT0T0){ |
1082 | t0AC= vevent->GetT0TOF()[0]; |
1083 | t0A= vevent->GetT0TOF()[1]; |
1084 | t0C= vevent->GetT0TOF()[2]; |
1085 | } |
1086 | |
1087 | Float_t t0t0Best = 0; |
1088 | Float_t t0t0BestRes = 9999; |
1089 | Int_t t0used=0; |
1090 | if(TMath::Abs(t0A) < t0cut && TMath::Abs(t0C) < t0cut && TMath::Abs(t0C-t0A) < 500){ |
1091 | t0t0Best = t0AC; |
1092 | t0t0BestRes = resT0AC; |
1093 | t0used=6; |
1094 | } |
1095 | else if(TMath::Abs(t0C) < t0cut){ |
1096 | t0t0Best = t0C; |
1097 | t0t0BestRes = resT0C; |
1098 | t0used=4; |
1099 | } |
1100 | else if(TMath::Abs(t0A) < t0cut){ |
1101 | t0t0Best = t0A; |
1102 | t0t0BestRes = resT0A; |
1103 | t0used=2; |
1104 | } |
1105 | |
1106 | if(flagT0TOF){ // if T0-TOF info is available |
1107 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1108 | if(t0t0BestRes < 999){ |
1109 | if(startTimeRes[i] < t0spread){ |
1110 | Double_t wtot = 1./startTimeRes[i]/startTimeRes[i] + 1./t0t0BestRes/t0t0BestRes; |
1111 | Double_t t0best = startTime[i]/startTimeRes[i]/startTimeRes[i] + t0t0Best/t0t0BestRes/t0t0BestRes; |
1112 | estimatedT0event[i]=t0best / wtot; |
1113 | estimatedT0resolution[i]=1./TMath::Sqrt(wtot); |
1114 | startTimeMask[i] = t0used+1; |
1115 | } |
1116 | else { |
1117 | estimatedT0event[i]=t0t0Best; |
1118 | estimatedT0resolution[i]=t0t0BestRes; |
1119 | startTimeMask[i] = t0used; |
1120 | } |
1121 | } |
1122 | else{ |
1123 | estimatedT0event[i]=startTime[i]; |
1124 | estimatedT0resolution[i]=startTimeRes[i]; |
1125 | if(startTimeRes[i]<t0spread) startTimeMask[i]=1; |
1126 | } |
1127 | fTOFResponse.SetT0binMask(i,startTimeMask[i]); |
1128 | } |
1129 | fTOFResponse.SetT0event(estimatedT0event); |
1130 | fTOFResponse.SetT0resolution(estimatedT0resolution); |
1131 | } |
1132 | else{ // if no T0-TOF info is available |
1133 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1134 | fTOFResponse.SetT0binMask(i,t0used); |
1135 | if(t0t0BestRes < 999){ |
1136 | estimatedT0event[i]=t0t0Best; |
1137 | estimatedT0resolution[i]=t0t0BestRes; |
1138 | } |
1139 | else{ |
1140 | estimatedT0event[i]=0.0; |
1141 | estimatedT0resolution[i]=t0spread; |
1142 | } |
1143 | } |
1144 | fTOFResponse.SetT0event(estimatedT0event); |
1145 | fTOFResponse.SetT0resolution(estimatedT0resolution); |
1146 | } |
1147 | } |
1148 | |
1149 | else if(option == kT0_T0){ // T0-T0 is used when available (T0-FILL otherwise) |
1150 | Float_t t0AC=-10000; |
1151 | Float_t t0A=-10000; |
1152 | Float_t t0C=-10000; |
1153 | if(flagT0T0){ |
1154 | t0AC= vevent->GetT0TOF()[0]; |
1155 | t0A= vevent->GetT0TOF()[1]; |
1156 | t0C= vevent->GetT0TOF()[2]; |
1157 | } |
1158 | |
1159 | if(TMath::Abs(t0A) < t0cut && TMath::Abs(t0C) < t0cut && TMath::Abs(t0C-t0A) < 500){ |
1160 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1161 | estimatedT0event[i]=t0AC; |
1162 | estimatedT0resolution[i]=resT0AC; |
1163 | fTOFResponse.SetT0binMask(i,6); |
1164 | } |
1165 | } |
1166 | else if(TMath::Abs(t0C) < t0cut){ |
1167 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1168 | estimatedT0event[i]=t0C; |
1169 | estimatedT0resolution[i]=resT0C; |
1170 | fTOFResponse.SetT0binMask(i,4); |
1171 | } |
1172 | } |
1173 | else if(TMath::Abs(t0A) < t0cut){ |
1174 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1175 | estimatedT0event[i]=t0A; |
1176 | estimatedT0resolution[i]=resT0A; |
1177 | fTOFResponse.SetT0binMask(i,2); |
1178 | } |
1179 | } |
1180 | else{ |
1181 | for(Int_t i=0;i<fTOFResponse.GetNmomBins();i++){ |
1182 | estimatedT0event[i]=0.0; |
1183 | estimatedT0resolution[i]=t0spread; |
1184 | fTOFResponse.SetT0binMask(i,0); |
1185 | } |
1186 | } |
1187 | fTOFResponse.SetT0event(estimatedT0event); |
1188 | fTOFResponse.SetT0resolution(estimatedT0resolution); |
1189 | } |
1190 | delete [] startTime; |
1191 | delete [] startTimeRes; |
1192 | delete [] startTimeMask; |
1193 | delete [] estimatedT0event; |
1194 | delete [] estimatedT0resolution; |
1195 | } |