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Fixes for Coverity warnings
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70da6c5a 1/**************************************************************************
faee3b18 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 **************************************************************************/
70da6c5a 15//
16// Class for PID QA
17// Several studies done on clean samples of electrons, pions and kaons
18// coming from V0 PID
19// Compatible with both ESDs and AODs
20//
21// Autors:
22// Matus Kalisky <matus.kalisky@cern.ch>
23// Markus Heide <mheide@uni-muenster.de>
24// Markus Fasel <M.Fasel@gsi.de>
25//
faee3b18 26
27
70da6c5a 28#include <TMath.h>
29#include <TObjArray.h>
70da6c5a 30#include <TPDGCode.h>
31#include <TString.h>
faee3b18 32#include <TMultiLayerPerceptron.h>
33#include <TFile.h>
70da6c5a 34
35#include "AliAODMCParticle.h"
faee3b18 36#include "AliAODEvent.h"
70da6c5a 37#include "AliAODTrack.h"
38#include "AliESDtrack.h"
faee3b18 39#include "AliESDEvent.h"
70da6c5a 40#include "AliMCEvent.h"
41#include "AliMCParticle.h"
42#include "AliPID.h"
43#include "AliESDpid.h"
70da6c5a 44#include "AliVParticle.h"
70da6c5a 45
46
47#include "AliHFEcollection.h"
48#include "AliHFEpidQA.h"
faee3b18 49#include "AliHFEV0info.h"
70da6c5a 50#include "AliHFEV0pid.h"
51#include "AliHFEV0pidMC.h"
3a72645a 52#include "AliHFEV0cuts.h"
faee3b18 53#include "AliHFEtrdPIDqa.h"
54
70da6c5a 55
56ClassImp(AliHFEpidQA)
57
faee3b18 58 //__________________________________________
59 AliHFEpidQA::AliHFEpidQA():
60 fEvent(NULL),
61 fMC(NULL),
62 fV0pid(NULL),
63 fV0pidMC(NULL),
64 fTRDpidQA(NULL),
65 fOutput(NULL),
66 fESDpid(NULL),
67 fNNref(NULL)
70da6c5a 68{
69 //
70 // Default constructor
71 //
faee3b18 72 for(Int_t mom = 0; mom < 11; mom++){
73 fNet[mom] = NULL;
74 }
75}
76
77//__________________________________________
78AliHFEpidQA::AliHFEpidQA(const AliHFEpidQA &ref):
79 TObject(ref),
80 fEvent(NULL),
81 fMC(NULL),
82 fV0pid(NULL),
83 fV0pidMC(NULL),
84 fTRDpidQA(NULL),
85 fOutput(NULL),
86 fESDpid(NULL),
87 fNNref(NULL)
88{
89 //
90 // Copy constructor
91 //
92 for(Int_t mom = 0; mom < 11; mom++){
93 fNet[mom] = NULL;
94 }
95 ref.Copy(*this);
96}
97
98//__________________________________________
99AliHFEpidQA &AliHFEpidQA::operator=(const AliHFEpidQA &ref){
100 //
101 // Assignment operator
102 //
103 if(this != &ref)
104 ref.Copy(*this);
105 return *this;
70da6c5a 106}
107
108//__________________________________________
109AliHFEpidQA::~AliHFEpidQA(){
110 //
111 // Destructor
112 //
113 if(fV0pid) delete fV0pid;
114 if(fV0pidMC) delete fV0pidMC;
faee3b18 115 if(fTRDpidQA) delete fTRDpidQA;
70da6c5a 116 if(fOutput) delete fOutput;
faee3b18 117 // if(fTRDpidResponse) delete fTRDpidResponse;
118}
119
120//__________________________________________
121void AliHFEpidQA::Copy(TObject &o) const {
122 //
123 // Copy function
124 //
125
126 TObject::Copy(o);
127
128 AliHFEpidQA &target = dynamic_cast<AliHFEpidQA &>(o);
129 target.fMC = fMC;
130
131 if(target.fESDpid) delete target.fESDpid;
132 target.fESDpid = new AliESDpid;
133 if(target.fV0pid) delete target.fV0pid;
134 if(fV0pid)
135 target.fV0pid = dynamic_cast<AliHFEV0pid *>(fV0pid->Clone());
136 else
137 target.fV0pid = NULL;
138 if(target.fV0pidMC) delete target.fV0pidMC;
139 if(fV0pidMC)
140 target.fV0pidMC = dynamic_cast<AliHFEV0pidMC *>(fV0pidMC->Clone());
141 else
142 target.fV0pidMC = NULL;
143 if(target.fTRDpidQA) delete target.fTRDpidQA;
144 if(fTRDpidQA)
145 target.fTRDpidQA = dynamic_cast<AliHFEtrdPIDqa *>(fTRDpidQA->Clone());
146 else
147 target.fTRDpidQA = NULL;
148 if(target.fOutput) delete target.fOutput;
149 if(fOutput)
150 target.fOutput = dynamic_cast<AliHFEcollection *>(fOutput->Clone());
70da6c5a 151}
152
153//__________________________________________
154void AliHFEpidQA::Init(){
155 //
156 // Prepare task output
157 //
158
3a72645a 159 // load networks
faee3b18 160 if(fNNref){
3a72645a 161 for(Int_t mom = 0; mom < 11; mom++){
faee3b18 162 fNet[mom] = (TMultiLayerPerceptron*) fNNref->Get(Form("NN_Mom%d", mom));
163 if(!fNet[mom]){
164 AliError(Form("No reference network for momentum bin %d!", mom));
165 }
166 }
167 }
168
3a72645a 169 fV0pid = new AliHFEV0pid();
70da6c5a 170 if(HasV0pidQA()) fV0pid->InitQA();
171 fV0pidMC = new AliHFEV0pidMC();
172 fV0pidMC->Init();
173
faee3b18 174 fTRDpidQA = new AliHFEtrdPIDqa;
175 fTRDpidQA->Init();
176
70da6c5a 177 fOutput = new AliHFEcollection("pidQA", "PID QA output");
178
faee3b18 179 const char *name[4] = {"Electron", "PionK0", "PionL", "Proton"};
180 const char *title[4] = {"Electron", "K0 Pion", "Lambda Pion", "Proton"};
181 const char *det[4] = {"ITS", "TPC", "TRD", "TOF"};
182 for(Int_t i = 0; i < 4; i++){
183 fOutput->CreateTH2F(Form("purity%s", name[i]), Form("%s Purity", title[i]), 2, -0.5, 1.5, 20, 0.1, 10, 1);
184
185 for(Int_t idet = 0; idet < 4; idet++){
186 // create all the histograms which all the detectors have in common
187 if(idet != 2){ // no nSigma histogram for TRD
188 fOutput->CreateTH2F(Form("h%s_nSigma_%s", det[idet], name[i]), Form("%s number of sigmas for %ss; p (GeV/c); number of sigmas", det[idet], title[i]), 20, 0.1, 10, 100, -7, 7, 0);
189 }
190 fOutput->CreateTH2F(Form("h%s_PID_p_%s", det[idet], name[i]), Form("%s PID for %ss; p (GeV/c); ITS PID", det[idet], title[i]), 100, 0.1, 10, 5, -0.5, 4.5, 0);
191 fOutput->CreateTH2F(Form("h%s_El_like_%s", det[idet], name[i]), Form("%s Electron Likelihoods for %ss; p (GeV/c); likelihood", det[idet], title[i]), 25, 0.1, 10, 1000, 0., 1., 0);
192 fOutput->CreateTH2F(Form("h%s_El_like_MC_%s", det[idet], name[i]), Form("%s Electron Likelihoods for MC %ss; p (GeV/c); likelihood", det[idet], title[i]), 25, 0.1, 10, 1000, 0., 1., 0);
193 }
70da6c5a 194
faee3b18 195 //
196 // ITS pid response
197 //
198 fOutput->CreateTH2F(Form("hITS_Signal_%s", name[i]), Form("ITS Signal org. for %ss", title[i]), 40, 0.1, 10, 400, 0, 1000, 0);
199 fOutput->CreateTH2Fvector1(5, Form("hITS_dEdx_%s", name[i]), Form("ITS dEdx for %ss; p (GeV/c); dEdx (a.u.)", title[i]), 40, 0.1, 10, 400, 0, 1000, 0);
200
201 //
202 // TPC pid response
203 //
204 fOutput->CreateTH2F(Form("hTPC_dEdx_%s", name[i]), Form("TPC dEdx for %ss; p (GeV/c); dEdx (a.u.)", title[i]), 20, 0.1, 10, 200, 0, 200, 0);
205
206 //
207 // TRD pid response
208 //
209 fOutput->CreateTH2F(Form("hTRD_trk_%s", name[i]), Form("%s PID tracklets; p (GeV/c); N TRD tracklets", title[i]), 100, 0.1, 10, 7, -0.5, 6.5, 0);
210 // number of the non 0 slices per tracklet
211 fOutput->CreateTH2F(Form("hTRD_Nslc_%s", name[i]), Form("%s PID slices > 0; p (GeV/c); N slc > 0", title[i]), 100, 0.1, 10, 9, -0.5, 8.5, 0);
212 // location of the slices > 0 - where are the emtpy slices located ?
213 fOutput->CreateTH2F(Form("hTRD_slc_%s", name[i]), Form("%s PID slices > 0 position; p (GeV/c); slice", title[i]), 100, 0.1, 10, 9, -0.5, 8.5, 0);
214 fOutput->CreateTH2F(Form("hTRD_cls_%s", name[i]), Form("TRD clusters for %s candidates; p (GeV/c); N cls", title[i]), 25, 0.1, 10, 1000, 0, 1000);
215 fOutput->CreateTH2F(Form("hTRD_dEdx_%s", name[i]), Form("TRD dEdx (trk) for %s candidates; p (GeV/c); tracklet dEdx (a.u.)", title[i]), 25, 0.1, 10, 1000, 0, 100000, 0);
216
217 //
218 // TOF pid response
219 //
220 fOutput->CreateTH2F(Form("hTOF_beta_%s", name[i]), Form("TOF beta for %s; p (GeV/c); #beta", title[i]), 50, 0.1, 5, 350, 0.4, 1.1, 0);
221 }//.. loop over identified particle species
222
223 // Global histograms
224 fOutput->CreateTH1F("hITS_dEdx_nSamples", "ITS - number of non 0 dEdx samples", 4, 0.5, 4.5);
70da6c5a 225 fOutput->CreateTH2F("hTPC_PID", "TPC pid all tracks; tpc pid probability; species",100, 0, 1, 5, -0.5, 4.5 );
70da6c5a 226 fOutput->CreateTH2F("hTOF_PID", "TOF pid all tracks; tof pid probability; species",100, 0, 1,5, -0.5, 4.5 );
faee3b18 227 fOutput->CreateTH2F("hTOF_beta_all", "TOF beta for all nice single tracks; p (GeV/c); #beta", 100, 0.1, 10, 480, 0, 1.2, 0);
228 fOutput->CreateTH2F("hTOF_qa_TmT0mT", "TOF (t - t0 - t[pion]) qa verus run", 10000, 114000, 124000, 200, -200, 200);
229 fOutput->CreateTH2F("hTOF_qa_length", "TOF track length verus run", 10000, 114000, 112400, 200, 0, 1000);
230
231 //
232 // debug histograms
233 //
234 fOutput->CreateTH2F("hITS_kFlags", "ITS flags; flag; V0 candidates", 5, 0.5, 5.5, 5, -0.5, 4.5);
235 fOutput->CreateTH2F("hTPC_kFlags", "TPC flags; flag; V0 candidates", 5, 0.5, 5.5, 5, -0.5, 4.5);
236 fOutput->CreateTH2F("hTRD_kFlags", "TRD flags; flag; V0 candidates", 5, 0.5, 5.5, 5, -0.5, 4.5);
237 fOutput->CreateTH2F("hTOF_kFlags", "TOF flags; flag; V0 candidates", 5, 0.5, 5.5, 5, -0.5, 4.5);
70da6c5a 238
239
faee3b18 240 //
241 // event based histograms
242 //
e3fc062d 243 Int_t nT0[2] = {10000, 100};
244 Double_t minT0[2] = {114500, -1000};
245 Double_t maxT0[2] = {124500, 1000};
246 fOutput->CreateTHnSparse("hEvent_T0", "T0 as a function of run number; run number; T0 (ns)", 2, nT0, minT0, maxT0);
faee3b18 247
248 //
249 // test the tender V0 supply
250 //
251 fOutput->CreateTH2F("h_tender_check_01", "tender -vs- HFEpidQA; HFEpidQA V0 candiadates; tender V0 candidates", 4, -1.5, 2.5, 4, -1.5, 2.5);
252 fOutput->CreateTH2Fvector1(3, "h_tender_check_02", "tender -vs- HFEpidQA per type; AliHFEpidQA V0 ; tender V0", 4, -1.5, 2.5, 4, -1.5, 2.5);
70da6c5a 253
70da6c5a 254
70da6c5a 255 //
faee3b18 256 // THnSpasre objects
70da6c5a 257 //
258
faee3b18 259 // Create Illumination Plot
260 // bins: species, pt, eta, phi, TPC status, TRD status
261 {
262 Int_t nbins[6] = {4, 40, 16, 72, 2, 2};
263 Double_t min[6] = { 0, 0.1, -0.8, 0., 0., 0.};
264 Double_t max[6] = { 4., 20., 0.8, 2*TMath::Pi(), 2., 2.};
265 fOutput->CreateTHnSparse("hIllumination", "Illumination", 6, nbins, min, max);
266 fOutput->BinLogAxis("hIllumination", 1);
267 }
268
269 // TPC THnSparse
270 // bins: species, pt, n TPC clusters., TPC electron likelihood, TPC n sigmas, TPC signal
271 {
272 Int_t nbins[6] = { 5, 40, 20, 100, 100, 200};
273 Double_t min[6] = { -0.5, 0.1, 0., 0., -5., 0.};
274 Double_t max[6] = { 4.5, 20., 200, 1., 5., 120.};
275 TString htitle = "TPC info sparse; VO identified species; p (GeV/c); n TPC clusters; TPC N sigma; TPC signal";
276 fOutput->CreateTHnSparse("hTPCclusters",htitle,6, nbins, min, max);
277 fOutput->BinLogAxis("hTPCclusters", 1);
278 }
279 // TRD THnSparse - entries per tracklet
280 // species, p, tracklet position, number of PID tracklets, number of slices (non 0), number of clusters, electron likelihood,
3a72645a 281
faee3b18 282 {
283 Int_t nbins[7] = {5, 20, 6, 7, 9, 45, 100};
284 Double_t min[7] = {-0.5, 0.5, -0.5, -0.5, -0.5, -0.5, 0.};
285 Double_t max[7] = {4.5, 10, 5.5, 6.5, 8.5, 179.5, 1.};
286 TString htitle = "TRD tracklets; VO identified species; p (GeV/c); tracklet position; No. PID tacklets; No. slices; No. clusters; El. likelihood";
287 fOutput->CreateTHnSparse("hTRDtracklets",htitle,7, nbins, min, max);
288 fOutput->BinLogAxis("hTRDtracklets", 1);
70da6c5a 289 }
faee3b18 290
291
292}
293//__________________________________________
294void AliHFEpidQA::Process(){
295 //
296 // Run PID QA
297 //
70da6c5a 298
299 if(!fV0pid){
300 AliError("V0pid not available! Forgotten to initialize?");
301 return;
302 }
faee3b18 303 if(!fESDpid){
304 AliError("fESDpid not initialized, I am leaving this!");
305 return;
306 }
307
308 // to be udpated to AOD save mdoe
309 if(!fEvent){
310 AliError("AliVEvent not available, returning");
311 }
70da6c5a 312
3a72645a 313
70da6c5a 314 if(fMC) fV0pidMC->SetMCEvent(fMC);
3a72645a 315 if(fMC) fV0pid->SetMCEvent(fMC);
70da6c5a 316
faee3b18 317 fV0pid->Process(fEvent);
318 TObjArray *hfeelectrons = fV0pid->GetListOfElectrons();
319 TObjArray *hfepionsK0 = fV0pid->GetListOfPionsK0();
320 TObjArray *hfepionsL = fV0pid->GetListOfPionsL();
321 TObjArray *hfeprotons = fV0pid->GetListOfProtons();
322
323 // Get Track list for normal purpose
324 TObjArray *electrons = MakeTrackList(hfeelectrons);
325 TObjArray *pionsK0 = MakeTrackList(hfepionsK0);
326 TObjArray *pionsL = MakeTrackList(hfepionsL);
327 TObjArray *protons = MakeTrackList(hfeprotons);
328 TObjArray *cleanElectrons = MakeCleanListElectrons(hfeelectrons);
70da6c5a 329
330 if(fMC){
3a72645a 331 fV0pidMC->Process(electrons, AliHFEV0cuts::kRecoElectron);
332 fV0pidMC->Process(pionsK0, AliHFEV0cuts::kRecoPionK0);
333 fV0pidMC->Process(pionsL, AliHFEV0cuts::kRecoPionL);
334 fV0pidMC->Process(protons, AliHFEV0cuts::kRecoProton);
70da6c5a 335 }
336
337 AliDebug(2, Form("Number of Electrons : %d", electrons->GetEntries()));
338 AliDebug(2, Form("Number of K0 Pions : %d", pionsK0->GetEntries()));
339 AliDebug(2, Form("Number of Lambda Pions : %d", pionsL->GetEntries()));
340 AliDebug(2, Form("Number of Protons : %d", protons->GetEntries()));
341 if(fMC){
342 AliDebug(2, "MC Information available. Doing Purity checks...");
343 // Calculate the purity of the clean samples using MC
3a72645a 344 MakePurity(electrons, AliHFEV0cuts::kRecoElectron);
345 MakePurity(pionsK0, AliHFEV0cuts::kRecoPionK0);
346 MakePurity(pionsL, AliHFEV0cuts::kRecoPionL);
347 MakePurity(protons, AliHFEV0cuts::kRecoProton);
70da6c5a 348 }
faee3b18 349
350 // some event wise checks
351 CheckEvent();
352
353 // Make Illumination Plot
3a72645a 354 FillIllumination(electrons, AliHFEV0cuts::kRecoElectron);
355 FillIllumination(pionsK0, AliHFEV0cuts::kRecoPionK0);
356 FillIllumination(pionsL, AliHFEV0cuts::kRecoPionL);
357 FillIllumination(protons, AliHFEV0cuts::kRecoProton);
faee3b18 358
70da6c5a 359 // Now we can do studies on the PID itself
faee3b18 360 // For TRD use the TRD PID QA object
361 fTRDpidQA->ProcessTracks(cleanElectrons, AliPID::kElectron);
362 fTRDpidQA->ProcessTracks(pionsK0, AliPID::kPion);
363 fTRDpidQA->ProcessTracks(pionsL, AliPID::kPion);
364 fTRDpidQA->ProcessTracks(protons, AliPID::kProton);
365
3a72645a 366 FillElectronLikelihoods(electrons, AliHFEV0cuts::kRecoElectron);
367 FillElectronLikelihoods(pionsK0, AliHFEV0cuts::kRecoPionK0);
368 FillElectronLikelihoods(pionsL, AliHFEV0cuts::kRecoPionL);
369 FillElectronLikelihoods(protons, AliHFEV0cuts::kRecoProton);
70da6c5a 370
3a72645a 371 FillPIDresponse(electrons, AliHFEV0cuts::kRecoElectron);
372 FillPIDresponse(pionsK0, AliHFEV0cuts::kRecoPionK0);
373 FillPIDresponse(pionsL, AliHFEV0cuts::kRecoPionL);
374 FillPIDresponse(protons, AliHFEV0cuts::kRecoProton);
70da6c5a 375
faee3b18 376 // check the tender V0s
3a72645a 377 CheckTenderV0pid(electrons, AliHFEV0cuts::kRecoElectron);
378 CheckTenderV0pid(pionsK0, AliHFEV0cuts::kRecoPionK0);
379 CheckTenderV0pid(pionsL, AliHFEV0cuts::kRecoPionL);
380 CheckTenderV0pid(protons, AliHFEV0cuts::kRecoProton);
faee3b18 381
70da6c5a 382 // Analysis done, flush the containers
383 fV0pid->Flush();
faee3b18 384
385 delete electrons;
386 delete pionsL;
387 delete pionsK0;
388 delete protons;
389 delete cleanElectrons;
390}
391
392//__________________________________________
3a72645a 393void AliHFEpidQA::FillIllumination(const TObjArray * const tracks, Int_t species){
faee3b18 394 //
395 // Fill Illumination Plot
396 //
397 THnSparseF *hIllumination = dynamic_cast<THnSparseF *>(fOutput->Get("hIllumination"));
398 if(!hIllumination) return;
399
400 Double_t quantities[6]; memset(quantities, 0, sizeof(Double_t) *6);
401 TIter trackIter(tracks);
402
403 quantities[0] = species;
404 TObject *o = NULL; AliESDtrack *esdtrack = NULL;
405 while((o = trackIter())){
406 if(!TString(o->IsA()->GetName()).CompareTo("AliESDtrack")){
407 // work on local copy in order to not spoil others
408 esdtrack = new AliESDtrack(*(dynamic_cast<AliESDtrack *>(o)));
409 } else if(!TString(o->IsA()->GetName()).CompareTo("AliAODrack")){
410 // Bad hack: Fill ESD track with AOD information
411 esdtrack = new AliESDtrack(dynamic_cast<AliAODTrack *>(o));
412 } else {
413 // Non usable
414 continue;
415 }
416
417 // Propagate to the entrance of the TRD
418 esdtrack->PropagateTo(300, fEvent->GetMagneticField());
419 quantities[1] = esdtrack->Pt();
420 quantities[2] = esdtrack->Eta();
421 quantities[3] = esdtrack->Phi();
422 quantities[4] = (esdtrack->GetStatus() & AliESDtrack::kTPCrefit) ? 1 : 0;
423 quantities[5] = (esdtrack->GetStatus() & AliESDtrack::kTRDout) ? 1. : 0.;
424 hIllumination->Fill(quantities);
425
426 delete esdtrack;
427 }
428}
429//__________________________________________
430void AliHFEpidQA::FillTPCinfo(AliESDtrack *const esdtrack, Int_t species){
431 //
432 // Fill TPC Cluster Plots
433 //
434 THnSparseF *hTPCclusters = dynamic_cast<THnSparseF *>(fOutput->Get("hTPCclusters"));
435 if(!hTPCclusters) return;
436
437 Double_t quantities[6]; memset(quantities, 0, sizeof(Double_t) *6);
438
439 Double_t pidProbs[5];
440 const Int_t typePID[5] = {0, 2, 2, 3, 4};
441
442
443 quantities[0] = species;
444
445
446 esdtrack->GetTPCpid(pidProbs);
447
448 quantities[1] = esdtrack->P();
449 quantities[2] = esdtrack->GetTPCNcls();
450 quantities[3] = pidProbs[0];
451 quantities[4] = fESDpid->NumberOfSigmasTPC(esdtrack,(AliPID::EParticleType)typePID[species]);
452 quantities[5] = esdtrack->GetTPCsignal();
453 hTPCclusters->Fill(quantities);
454
70da6c5a 455}
456
457//__________________________________________
3a72645a 458void AliHFEpidQA::MakePurity(const TObjArray *tracks, Int_t species){
70da6c5a 459 //
460 // Fill the QA histos for a given species
461 //
462 if(!fMC) return;
463 AliDebug(3, Form("Doing Purity checks for species %d", species));
faee3b18 464 Int_t pdg = GetPDG(species);
70da6c5a 465 Char_t hname[256];
faee3b18 466
70da6c5a 467 switch(species){
3a72645a 468 case AliHFEV0cuts::kRecoElectron:
faee3b18 469 sprintf(hname, "purityElectron");
470 break;
3a72645a 471 case AliHFEV0cuts::kRecoPionK0:
faee3b18 472 sprintf(hname, "purityPionK0");
473 break;
3a72645a 474 case AliHFEV0cuts::kRecoPionL:
faee3b18 475 sprintf(hname, "purityPionL");
476 break;
3a72645a 477 case AliHFEV0cuts::kRecoProton:
faee3b18 478 sprintf(hname, "purityProton");
479 break;
480 default: // non investigated species
481 AliDebug(3, "Species not investigated");
482 return;
483 }
484
70da6c5a 485 AliDebug(3, Form("Number of tracks: %d", tracks->GetEntries()));
faee3b18 486 TIter trackIter(tracks);
70da6c5a 487 AliVParticle *recTrack = NULL, *mcTrack = NULL;
faee3b18 488 while((recTrack = dynamic_cast<AliVParticle *>(trackIter()))){
70da6c5a 489 Int_t label = recTrack->GetLabel();
490 AliDebug(4, Form("MC Label %d", label));
491 mcTrack =fMC->GetTrack(TMath::Abs(label));
492 if(!mcTrack){
493 AliDebug(4, "MC track not available");
494 continue; // we don't know
495 }
496
497 // Get the pdg code
498 Int_t trackPdg = 0;
499 if(!TString(mcTrack->IsA()->GetName()).CompareTo("AliMCParticle")){
500 // case ESD
501 AliMCParticle *mcp = dynamic_cast<AliMCParticle *>(mcTrack);
502 trackPdg = TMath::Abs(mcp->Particle()->GetPdgCode());
503 } else {
504 // case AOD
505 AliAODMCParticle *aodmcp = dynamic_cast<AliAODMCParticle *>(mcTrack);
506 trackPdg = TMath::Abs(aodmcp->GetPdgCode());
507 }
508 if(trackPdg == pdg) // Correct identification
faee3b18 509 {
510 fOutput->Fill(hname, 0., recTrack->Pt());
511 }
70da6c5a 512 else // Wrong identification
513 fOutput->Fill(hname, 1., recTrack->Pt());
514 }
70da6c5a 515}
516
517//__________________________________________
3a72645a 518void AliHFEpidQA::FillElectronLikelihoods(const TObjArray * const particles, Int_t species){
70da6c5a 519 //
faee3b18 520 // Fill electron Likelihoods for the ITS, TPC and TOF
70da6c5a 521 // Required for the calculation of the electron efficiency,
522 // pion and proton efficiency and the thresholds
523 //
faee3b18 524 Long_t status = 0;
7d14e0bd 525 const Char_t *detname[4] = {"ITS", "TPC", "TRD", "TOF"};
faee3b18 526 Char_t specname[256];
527
70da6c5a 528 switch(species){
3a72645a 529 case AliHFEV0cuts::kRecoElectron:
faee3b18 530 sprintf(specname, "Electron");
531 break;
3a72645a 532 case AliHFEV0cuts::kRecoPionK0:
faee3b18 533 sprintf(specname, "PionK0");
534 break;
3a72645a 535 case AliHFEV0cuts::kRecoPionL:
faee3b18 536 sprintf(specname, "PionL");
537 break;
3a72645a 538 case AliHFEV0cuts::kRecoProton:
faee3b18 539 sprintf(specname, "Proton");
540 break;
541 default:
542 AliDebug(2, Form("Species %d not investigated", species));
543 return;
70da6c5a 544 };
545 AliVParticle *recTrack = NULL;
faee3b18 546 // mcTrack =fMC->GetTrack(TMath::Abs(label));
547 // if(!mcTrack){
548 // AliDebug(4, "MC track not available");
549 // continue; // we don't know
550 // }
551
552 TIter trackIter(particles);
553
554 Double_t quantities[2];
555 Double_t pidProbs[5];
556
557 while((recTrack = dynamic_cast<AliVParticle *>(trackIter()))){
70da6c5a 558 if(!TString(recTrack->IsA()->GetName()).CompareTo("AliESDtrack")){
559 // case ESD
560 AliESDtrack *esdTrack = dynamic_cast<AliESDtrack *>(recTrack);
faee3b18 561 status = esdTrack->GetStatus();
562
563 //TPC momentum and likelihoods
564 Double_t pTPC = 0.;
565 pTPC = esdTrack->GetInnerParam() ? esdTrack->GetInnerParam()->P() : esdTrack->P();
566 Bool_t mcFound = kFALSE;
567 if(fMC){
568 Int_t label = esdTrack->GetLabel();
569 AliMCParticle *mcTrack = dynamic_cast<AliMCParticle *>(fMC->GetTrack(label));
570 Int_t pdg = GetPDG(species);
571 Int_t trackPdg = 0;
572 if(mcTrack){
573 trackPdg = TMath::Abs(mcTrack->Particle()->GetPdgCode());
574 }
575 if(pdg == trackPdg) mcFound = kTRUE;
70da6c5a 576 }
faee3b18 577 quantities[0] = pTPC;
578 Bool_t detFlagSet = kFALSE;
579 for(Int_t idet = 0; idet < 4; idet++){
580 Char_t histname[256], histnameMC[256];
581 sprintf(histname, "h%s_El_like_%s", detname[idet], specname);
582 sprintf(histnameMC, "h%s_El_like_MC_%s", detname[idet], specname);
583 switch(idet){
584 case kITS: esdTrack->GetITSpid(pidProbs);
585 detFlagSet = status & AliESDtrack::kITSpid;
586 break;
587 case kTPC: esdTrack->GetTPCpid(pidProbs);
588 detFlagSet = status & AliESDtrack::kTPCpid;
589 break;
590 case kTRD: esdTrack->GetTRDpid(pidProbs);
591 detFlagSet = status & AliESDtrack::kTRDpid;
592 break;
593 case kTOF: esdTrack->GetTOFpid(pidProbs);
594 detFlagSet = status & AliESDtrack::kTOFpid;
595 break;
596 };
597 quantities[1] = pidProbs[AliPID::kElectron];
598 // in case of TRD require 6 PID tracklets
599 if(kTRD == idet && esdTrack->GetTRDntrackletsPID() != 6) continue;
600 if(detFlagSet){
601 fOutput->Fill(histname, quantities[0], quantities[1]);
602 if(mcFound)
603 fOutput->Fill(histnameMC, quantities[0], quantities[1]);
604 }
70da6c5a 605 }
faee3b18 606 }//.. ESD
607 else{
608 //AOD
609 }//.. aod
610 }//.. while tracks
70da6c5a 611}
612//__________________________________________
3a72645a 613void AliHFEpidQA::FillPIDresponse(const TObjArray * const particles, Int_t species){
70da6c5a 614 //
615 // Fill the PID response of different detectors to V0 daughter particles
616 //
617 Char_t hname[256] = "";
faee3b18 618 Char_t hname2[256] = "";
619 Char_t hname3[256] = "";
620
70da6c5a 621 const Char_t *typeName[5] = {"Electron", "PionK0", "PionL", "Kaon", "Proton"};
622 const Int_t typePID[5] = {0, 2, 2, 3, 4};
faee3b18 623
624 // PID THnSparse
625 // axes:
626 // 0) species, 1) momentum, 2) DCA xy, 3) DCA z
627 // 4) ITS signal
628 // 5) TPC Ncls 6) TPC signal 7) TPC nSigma,
629 // 8) TRD Ntrk, 9) TRD Ncls, 10) TRD dEdx,
630
631 Double_t data[12];
632 memset(data, -99, sizeof(Double_t) *12);
633
634 Int_t run = fEvent->GetRunNumber();
635
70da6c5a 636 AliVParticle *recTrack = NULL;
faee3b18 637 TIter trackIter(particles);
638 while((recTrack = dynamic_cast<AliVParticle *>(trackIter()))){
639 memset(data, -99, sizeof(Double_t) *10);
70da6c5a 640 // ESD
641 if(!TString(recTrack->IsA()->GetName()).CompareTo("AliESDtrack")){
642 // case ESD
643 AliESDtrack *esdTrack = dynamic_cast<AliESDtrack *>(recTrack);
faee3b18 644 if(!esdTrack) continue;
70da6c5a 645
faee3b18 646 // for the PID THnSparse
647 data[0] = species;
648 data[1] = esdTrack->P();
649 Float_t impactR = -1.;
650 Float_t impactZ = -1.;
651 esdTrack->GetImpactParameters(impactR, impactZ);
652 data[2] = impactR;
653 data[3] = impactZ;
654 data[11] = 0; // initialize the TOF pid cut on elecgrons to false
655 // use ONLY tracks with PID flag TRUE
656 ULong_t status = 0;
657 status = esdTrack->GetStatus();
658
659 //
660 // DEBUG
661 //
662
663 fOutput->Fill("hITS_kFlags", 5., species);
664 if(status & AliESDtrack::kITSin) fOutput->Fill("hITS_kFlags", 1., species);
665 if(status & AliESDtrack::kITSout) fOutput->Fill("hITS_kFlags", 2., species);
666 if(status & AliESDtrack::kITSrefit) fOutput->Fill("hITS_kFlags", 3., species);
667 if(status & AliESDtrack::kITSpid) fOutput->Fill("hITS_kFlags", 4., species);
668
669 fOutput->Fill("hTPC_kFlags", 5., species);
670 if(status & AliESDtrack::kTPCin) fOutput->Fill("hTPC_kFlags", 1., species);
671 if(status & AliESDtrack::kTPCout) fOutput->Fill("hTPC_kFlags", 2., species);
672 if(status & AliESDtrack::kTPCrefit) fOutput->Fill("hTPC_kFlags", 3., species);
673 if(status & AliESDtrack::kTPCpid) fOutput->Fill("hTPC_kFlags", 4., species);
674
675 fOutput->Fill("hTRD_kFlags", 5., species);
676 if(status & AliESDtrack::kTRDin) fOutput->Fill("hTRD_kFlags", 1., species);
677 if(status & AliESDtrack::kTRDout) fOutput->Fill("hTRD_kFlags", 2., species);
678 if(status & AliESDtrack::kTRDrefit) fOutput->Fill("hTRD_kFlags", 3., species);
679 if(status & AliESDtrack::kTRDpid) fOutput->Fill("hTRD_kFlags", 4., species);
680
681 fOutput->Fill("hTOF_kFlags", 5., species);
682 if(status & AliESDtrack::kTOFin) fOutput->Fill("hTOF_kFlags", 1., species);
683 if(status & AliESDtrack::kTOFout) fOutput->Fill("hTOF_kFlags", 2., species);
684 if(status & AliESDtrack::kTOFrefit) fOutput->Fill("hTOF_kFlags", 3., species);
685 if(status & AliESDtrack::kTOFpid) fOutput->Fill("hTOF_kFlags", 4., species);
686
687
688 //
689 // ITS -
690 //
691 if(status & AliESDtrack::kITSpid){
692 Double_t p = esdTrack->P();
693
694 // ITS signal
695 //Double_t itsSignal = esdTrack->GetITSsignal();
696
697 // ITS dEdx
698 Double_t dEdxSamples[4];
699 esdTrack->GetITSdEdxSamples(dEdxSamples);
700 Int_t nSamples = 0;
701 Double_t dEdxSum = 0.;
702 sprintf(hname, "hITS_dEdx_%s", typeName[species]);
703 for(Int_t i=0; i<4; ++i){
704 if(dEdxSamples[i] > 0){
705 nSamples++;
706 fOutput->Fill(hname, i+1, p, dEdxSamples[i]);
707 dEdxSum += dEdxSamples[i];
708 }
70da6c5a 709 }
faee3b18 710 if(4 == nSamples)fOutput->Fill(hname, 0, p, dEdxSum);
711 fOutput->Fill("hITS_dEdx_nSamples", nSamples);
712
713 Double_t signal = esdTrack->GetITSsignal();
714 sprintf(hname, "hITS_Signal_%s", typeName[species]);
715 fOutput->Fill(hname, p, signal);
716 data[4] = signal;
717
718 // ITS number of signas
719 Double_t nsigma = fESDpid->NumberOfSigmasITS(esdTrack,(AliPID::EParticleType)typePID[species]);
720 sprintf(hname, "hITS_nSigma_%s", typeName[species]);
721 fOutput->Fill(hname, p, nsigma);
722
723 // ITS PID response
724 Double_t itsPID[5] = {-1, -1, -1, -1, -1};
725 esdTrack->GetITSpid(itsPID);
726 Int_t ix = GetMaxPID(itsPID);
727 sprintf(hname, "hITS_PID_p_%s", typeName[species]);
91c7e1ec 728 fOutput->Fill(hname, p, ix);
faee3b18 729 }//.. kITSpid
730
731 //
732 // TPC
733 //
734 if(status & AliESDtrack::kTPCpid){
735 // Make TPC clusters Plot
736 data[5] = esdTrack->GetTPCNcls();
737 FillTPCinfo(esdTrack, species);
70da6c5a 738
faee3b18 739 Double_t p = esdTrack->GetInnerParam() ? esdTrack->GetInnerParam()->P() : esdTrack->P();
740 // TPC dEdx
741 Double_t dEdx = esdTrack->GetTPCsignal();
742 sprintf(hname, "hTPC_dEdx_%s", typeName[species]);
743 fOutput->Fill(hname, p, dEdx);
744 data[6] = dEdx;
745
746 //TPC number of sigmas
747 Double_t nsigma = fESDpid->NumberOfSigmasTPC(esdTrack,(AliPID::EParticleType)typePID[species]);
748 sprintf(hname, "hTPC_nSigma_%s", typeName[species]);
749 fOutput->Fill(hname, p, nsigma);
750 data[7] = nsigma;
751
752 // TPC PID response
753 sprintf(hname, "hTPC_PID_p_%s", typeName[species]);
754 Double_t tpcPID[5] = {-1, -1, -1, -1, -1};
755 esdTrack->GetTPCpid(tpcPID);
756 Int_t ix = GetMaxPID(tpcPID);
757 fOutput->Fill(hname, p, ix);
758 }//.. kTPCpid
759
760 //
761 // TRD
762 //
763
764 if(status & AliESDtrack::kTRDpid){
765 Double_t p = esdTrack->GetOuterParam() ? esdTrack->GetOuterParam()->P() : esdTrack->P();
766
767 // TRD number of tracklets
768 Int_t ntrk = esdTrack->GetTRDntrackletsPID();
769 sprintf(hname, "hTRD_trk_%s", typeName[species]);
770 fOutput->Fill(hname, p, ntrk);
771 data[8] = ntrk;
772
773 // TRD PID response
774 sprintf(hname, "hTRD_PID_p_%s", typeName[species]);
775 Double_t trdPID[5] = {-1., -1., -1., -1., -1};
776 esdTrack->GetTRDpid(trdPID);
777 Int_t ix = GetMaxPID(trdPID);
91c7e1ec 778 fOutput->Fill(hname, p, ix);
faee3b18 779 // TRD n clusters
780 Int_t ncls = esdTrack->GetTRDncls();
781 sprintf(hname, "hTRD_cls_%s", typeName[species]);
782 fOutput->Fill(hname, p, ncls);
783 data[9] = ncls;
784
785 // TRD - per tracklet - dEdx per, likelihood
786 sprintf(hname, "hTRD_Nslc_%s", typeName[species]);
787 sprintf(hname2, "hTRD_slc_%s", typeName[species]);
788 sprintf(hname3, "hTRD_dEdx_%s", typeName[species]);
789 Int_t nSlices = esdTrack->GetNumberOfTRDslices();
790 Double_t sumTot = 0.;
791 Int_t not0Tot = 0;
792 for(Int_t l=0; l< 6; ++l){
793 Double_t trkData[7] = {-1.,-1, -1, -1, -1, -1, -1};
794 trkData[0] = species;
795 trkData[1] = p;
796 trkData[2] = l;
797 trkData[3] = ntrk;
798 trkData[5] = ncls;
799 Double_t sum = 0.;
800 Int_t not0 = 0;
801 for(Int_t s=0; s<nSlices; ++s){
802 Double_t slice = esdTrack->GetTRDslice(l, s);
803 sum += slice;
804 if(slice > 0){
805 not0 += 1;
806 fOutput->Fill(hname2, p, s);
807 }
808 }//..slices
809
810 trkData[4] = not0;
811 fOutput->Fill(hname, p, not0);
812 fOutput->Fill(hname3, p, sum);
813 if(sum > 0){
814 sumTot += sum;
815 not0Tot += 1;
816 }
817 // lkelihoods per layer
818 if(not0Tot > 0 && fNNref){
819 Double_t likelihoods[5] = {-1., -1., -1., -1., -1};
820 TRDlikeTracklet(l, esdTrack, likelihoods);
821 trkData[6] = likelihoods[0];
822 //printf(" -D: species: %i, P; %f : %f, s: %f\n", species, p, likelihoods[0], s);
823 }
824 if(not0Tot) fOutput->Fill("hTRDtracklets", trkData);
825 }//..layers
826 // average dEx per number of tracklets
827 if(0 < not0Tot)
828 data[10] = sumTot / not0Tot;
829 }//.. kTRDpid
70da6c5a 830
faee3b18 831
832 //
833 // TOF
834 //
835 if(status & AliESDtrack::kTOFpid){
836 Double_t p = esdTrack->GetOuterParam() ? esdTrack->GetOuterParam()->P() : esdTrack->P();
837 Double_t t0 = fESDpid->GetTOFResponse().GetTimeZero();
838
839 //TOF beta
840 sprintf(hname, "hTOF_beta_%s", typeName[species]);
841 Float_t beta = TOFbeta(esdTrack);
842 fOutput->Fill(hname, p, beta);
843 fOutput->Fill("hTOF_beta_all", p, beta);
844 // TOF nSigma
845 Double_t nsigma = fESDpid->NumberOfSigmasTOF(esdTrack,(AliPID::EParticleType)typePID[species], t0);
846 sprintf(hname, "hTOF_nSigma_%s", typeName[species]);
847 fOutput->Fill(hname, p, nsigma);
848 if(beta > 0.97 && beta < 1.03){
849 data[11] = 1;
850 }
851
852 // TOF PID response
853 sprintf(hname, "hTOF_PID_p_%s", typeName[species]);
854 Double_t tofPID[5] = {-1., -1., -1., -1., -1};
855 esdTrack->GetTOFpid(tofPID);
856 Int_t ix = GetMaxPID(tofPID);
857 fOutput->Fill(hname, p, ix);
858
859 // time of flight QA
860 // - distribution of (time - t0 - pion_time)
861 Double_t times[5];
862 esdTrack->GetIntegratedTimes(times);
863 Double_t tItrackL = esdTrack->GetIntegratedLength();
864 Double_t tTOFsignal = esdTrack->GetTOFsignal();
865 Double_t dT = tTOFsignal - t0 - times[2];
866 fOutput->Fill("hTOF_qa_TmT0mT", run*1.0, dT);
867 fOutput->Fill("hTOF_qa_length", run*1.0, tItrackL);
70da6c5a 868
faee3b18 869
870 }//.. kTOFpid
871 // temporary - the PIDsparse needs rebuilding
872 //fOutput->Fill("PIDsparse", data);
70da6c5a 873 }
874 // AOD - comming soon
875 else{
876 continue;
877 }
878 }// .. tracks in TObjArray
879
70da6c5a 880
881}
faee3b18 882//__________________________________________
883void AliHFEpidQA:: CheckEvent(){
884 //
885 // check some event variables
886 //
70da6c5a 887
faee3b18 888 // check the T0 as a function of run number (less than one bin per number
889 Double_t t0 = fESDpid->GetTOFResponse().GetTimeZero();
890 Int_t run = fEvent->GetRunNumber();
891 Double_t data[2] = {run*1.0, t0*1000.};
892 fOutput->Fill("hEvent_T0", data);
893
894
895}
70da6c5a 896//__________________________________________
897TList *AliHFEpidQA::GetOutput(){
898 //
899 // Getter for Output histograms
900 //
901 return fOutput->GetList();
902}
903
904//__________________________________________
905TList *AliHFEpidQA::GetV0pidQA(){
906 //
907 // Getter for V0 PID QA histograms
908 //
909 return fV0pid->GetListOfQAhistograms();
910}
911
912//__________________________________________
913TList *AliHFEpidQA::GetV0pidMC(){
914 //
915 // Getter for V0 PID QA histograms
916 //
917 if(fV0pidMC)
918 return fV0pidMC->GetListOfQAhistograms();
919 return NULL;
920}
921
922//__________________________________________
923void AliHFEpidQA::RecalculateTRDpid(AliESDtrack * /*track*/, Double_t * /*pidProbs*/) const{
faee3b18 924 // fTRDpidResponse->MakePID(track);
925 // track->GetTRDpid(pidProbs);
70da6c5a 926}
927
928//__________________________________________
929void AliHFEpidQA::RecalculateTRDpid(AliAODTrack * /*track*/, Double_t * /*pidProbs*/) const{
faee3b18 930 // fTRDpidResponse->MakePID(track, pidProbs);
70da6c5a 931}
932//___________________________________________________________________
933Float_t AliHFEpidQA::TOFbeta(AliESDtrack * const track) const {
934 // computes the TOF beta
935 Double_t l = track->GetIntegratedLength(); // cm
936 Double_t t = track->GetTOFsignal();
faee3b18 937 Double_t t0 = fESDpid->GetTOFResponse().GetTimeZero(); // ps
938
939 //printf("-D: l: %f, t: %f, t0: %f\n", l, t, t0);
940
70da6c5a 941 if(l < 360. || l > 800.) return 0.;
942 if(t <= 0.) return 0.;
faee3b18 943 if(t0 >999990.0) return 0.;
944
70da6c5a 945
946 t -= t0; // subtract the T0
947
948 l *= 0.01; // cm ->m
949 t *= 1e-12; //ps -> s
950
951
952 Double_t v = l / t;
953 Float_t beta = v / TMath::C();
954
955 return beta;
956}
faee3b18 957//____________________________________________
3a72645a 958Int_t AliHFEpidQA::GetMaxPID(const Double_t *pidProbs) const {
faee3b18 959 //
960 // return the index of maximal PID probability
961 //
962 Int_t ix = -1;
963 Double_t tmp = 0.2;
964 for(Int_t i=0; i<5; ++i){
965 if(pidProbs[i] > tmp){
966 ix = i;
967 tmp = pidProbs[i];
968 }
969 }
970 return ix;
971}
972//_____________________________________________
973Int_t AliHFEpidQA::GetPDG(Int_t species){
974 //
975 // return the PDG particle code
976 //
977
978 Int_t pdg = 0;
979
980 switch(species){
3a72645a 981 case AliHFEV0cuts::kRecoElectron:
faee3b18 982 pdg = TMath::Abs(kElectron);
983 break;
3a72645a 984 case AliHFEV0cuts::kRecoPionK0:
faee3b18 985 pdg = TMath::Abs(kPiPlus);
986 break;
3a72645a 987 case AliHFEV0cuts::kRecoPionL:
faee3b18 988 pdg = TMath::Abs(kPiPlus);
989 break;
3a72645a 990 case AliHFEV0cuts::kRecoProton:
faee3b18 991 pdg = TMath::Abs(kProton);
992 break;
993 default: // non investigated species
994 AliDebug(3, "Species not recognised");
995 return 0;
996 }
997
998 return pdg;
999
1000}
1001
1002//_____________________________________________
3a72645a 1003TObjArray * AliHFEpidQA::MakeTrackList(const TObjArray *tracks) const {
faee3b18 1004 //
1005 // convert list of AliHFEV0Info into a list of AliVParticle
1006 //
1007 TObjArray *output = new TObjArray;
1008 TIter trackInfos(tracks);
1009 AliHFEV0info *trackInfo = NULL;
1010 while((trackInfo = dynamic_cast<AliHFEV0info *>(trackInfos())))
1011 output->Add(trackInfo->GetTrack());
1012
1013 return output;
1014}
1015
1016//_____________________________________________
3a72645a 1017TObjArray * AliHFEpidQA::MakeCleanListElectrons(const TObjArray *electrons) const {
faee3b18 1018 //
1019 // Cleanup electron sample using TPC PID
1020 // PID requirement will allways be implemented to the pair
1021 // Strategy
1022 //
1023 TObjArray *tracks = new TObjArray;
1024 TIter candidates(electrons);
1025 AliESDEvent *esd; AliAODEvent *aod;
1026 AliHFEV0info *hfetrack;
e3fc062d 1027 // const Double_t kSigmaTight = 1.;
1028 // const Double_t kSigmaLoose = 4.;
3a72645a 1029 const Double_t kSigmaTight = 2.;
1030 const Double_t kSigmaLoose = 2.;
1031 const Double_t shift = 0.57;
faee3b18 1032 if((esd = dynamic_cast<AliESDEvent *>(fEvent))){
1033 AliESDtrack *track = NULL, *partnerTrack = NULL;
1034 while((hfetrack = dynamic_cast<AliHFEV0info *>(candidates()))){
1035 track = dynamic_cast<AliESDtrack *>(hfetrack->GetTrack());
1036 partnerTrack = esd->GetTrack(hfetrack->GetPartnerID());
e3fc062d 1037 Double_t nSigmaTrack = TMath::Abs(fESDpid->NumberOfSigmasTPC(track, AliPID::kElectron) - shift);
1038 Double_t nSigmaPartner = TMath::Abs(fESDpid->NumberOfSigmasTPC(partnerTrack, AliPID::kElectron) - shift);
1039 if((nSigmaTrack < kSigmaTight && nSigmaPartner < kSigmaLoose) || (nSigmaTrack < kSigmaLoose && nSigmaPartner < kSigmaTight))
faee3b18 1040 tracks->Add(track);
1041 }
1042 } else {
1043 aod = dynamic_cast<AliAODEvent *>(fEvent);
1044 AliAODTrack *track = NULL, *partnerTrack = NULL;
1045 while((hfetrack = dynamic_cast<AliHFEV0info *>(candidates()))){
1046 track = dynamic_cast<AliAODTrack *>(hfetrack->GetTrack());
1047 partnerTrack = aod->GetTrack(hfetrack->GetPartnerID());
1048 // will be coming soon
1049 }
1050 }
1051 return tracks;
1052}
1053//___________________________________________________________
3a72645a 1054void AliHFEpidQA::CheckTenderV0pid(const TObjArray * const particles, Int_t species){
faee3b18 1055
1056 //
1057 // retrieve the status bits from the TObject used to flag
1058 // the V0 daughter tracks and return the found PID
1059 // 0 - electron, 1 - pion, 2 - proton
1060 //
1061
1062 const Int_t id[5] = {0, 1, 1, -1, 2}; // convert AliHFEpid to simple 0, 1, 2
1063
1064 AliVParticle *recTrack = NULL;
1065 TIter trackIter(particles);
1066 while((recTrack = dynamic_cast<AliVParticle *>(trackIter()))){
1067 if(!TString(recTrack->IsA()->GetName()).CompareTo("AliESDtrack")){
1068 // case ESD
1069 AliESDtrack *track = dynamic_cast<AliESDtrack *>(recTrack);
1070 if(!track) continue;
1071 Int_t tPID = GetTenderV0pid(track);
1072 fOutput->Fill("h_tender_check_01", id[species]*1.0, tPID);
1073 fOutput->Fill("h_tender_check_02", id[species], id[species]*1.0, tPID);
1074
1075 } //.. case ESD
1076
1077 }//.. iterate of tracks
1078}
1079//___________________________________________________________
1080Int_t AliHFEpidQA::GetTenderV0pid(AliESDtrack * const track){
1081 //
1082 // retrieve the PID nformation stored in the status flags by the train tender
1083 //
1084
1085
1086 Int_t pid = -1;
1087 if(!track){
1088 return pid;
1089 }
1090
1091 Int_t nTimes = 0;
1092
1093 if(track->TestBit(2<<14)){
1094 pid = 0;
1095 nTimes++;
1096 }
1097 if(track->TestBit(2<<15)){
1098 pid = 1;
1099 nTimes++;
1100 }
1101 if(track->TestBit(2<<16)){
1102 pid = 2;
1103 nTimes++;
1104 }
1105
1106 if(nTimes > 1){
1107 AliWarning("V0 track labeled multiple times by the V0 tender");
1108 pid = -1;
1109 }
1110
1111 return pid;
1112
1113}
1114//___________________________________________________________
1115Double_t AliHFEpidQA::TRDlikeTracklet(Int_t layer, AliESDtrack * const track, Double_t *likelihood){
1116 //
1117 // compute the TRD electron likelihoods for 1 tracklet
1118 // based on teh AliTRDpidRecalculator in train/until/tender
1119 // returns sum of the likelihoods (which should be 1)
1120 //
1121
1122 const Double_t cScaleGain = 1./ 16000.;
1123 const Float_t pBins[11] ={0.6, 0.8, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0}; // momentum bins
1124
1125 if(!track) return kFALSE;
1126 Float_t p = track->GetTRDmomentum(layer); // momentum for a tracklet in the ESDtrack
1127 if(p < 0) return kFALSE;
1128
1129 Int_t mombin = TRDmomBin(p); // momentum bin
1130 Float_t dEdxTRDsum = 0; // dEdxTRDsum for checking if tracklet is available
1131 Float_t dEdxTRD[8]; // dEdx for a tracklet in the ESD slices
1132 Double_t ddEdxTRD[8]; // dEdx as Double_t for TMultiLayerPerceptron::Evaluate()
1133
1134 Double_t prob[AliPID::kSPECIES]; // probabilities for all species in all layers
1135
1136 for(Int_t is = 0; is < AliPID::kSPECIES; is++){
1137 likelihood[is] = 0.2; // init probabilities
1138 prob[is] = 0.2;
1139 }
1140
1141 Double_t sum = 0.;
1142
1143 for(Int_t islice = 0; islice<8; islice++){
1144 dEdxTRD[islice]=0.; // init dE/dx
1145 ddEdxTRD[islice]=0.; // init dE/dx
1146 dEdxTRD[islice]=track->GetTRDslice(layer,islice); // get the dE/dx values
1147 dEdxTRDsum += dEdxTRD[islice];
1148 ddEdxTRD[islice]=(Double_t)dEdxTRD[islice]*cScaleGain; // rescale dE/dx
1149
1150 }
1151 for(Int_t is = 0; is < AliPID::kSPECIES; is++){
1152 Double_t probloc1, probloc2;
1153 if(mombin == 0 && mombin < pBins[0]){ // calculate PID for p > 0.6 GeV/c
1154 prob[is] = fNet[mombin]->Evaluate(is, ddEdxTRD);
1155 }
1156 else if(mombin == 10 && mombin >= pBins[10]){ // calculate PID for p >= 10.0 GeV/c
1157 prob[is] = fNet[mombin]->Evaluate(is, ddEdxTRD);
1158 }
1159 else{ // standard calculation
1160 Int_t mombin1 = 0, mombin2 = 0; // lower and upper momentum bin
1161 if(p < pBins[mombin]) {mombin1 = mombin -1; mombin2 = mombin;}
1162 if(p >= pBins[mombin]) {mombin1 = mombin; mombin2 = mombin+1;}
1163 probloc1 = fNet[mombin1]->Evaluate(is, ddEdxTRD);
1164 probloc2 = fNet[mombin2]->Evaluate(is, ddEdxTRD);
1165 // weighting of the probability with regard to the track momentum
1166 prob[is] = probloc1 + (probloc2-probloc1)*(p-pBins[mombin1])/(pBins[mombin2]-pBins[mombin1]);
1167 }
1168 likelihood[is] = prob[is];
1169 sum += likelihood[is];
1170 }
1171
1172 return sum;
1173}
1174//__________________________________________________________________________
6555e2ad 1175Int_t AliHFEpidQA::TRDmomBin(Double_t p) const {
faee3b18 1176 //
1177 // compute the momentum bin position
1178 //
1179
1180 const Float_t pBins[11] ={0.6, 0.8, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0}; // momentum bins
1181
1182 Int_t pBin1 = -1; // check bin1
1183 Int_t pBin2 = -1; // check bin2
1184
1185 if(p < 0) return -1; // return -1 if momentum < 0
1186 if(p < pBins[0]) return 0; // smallest momentum bin
1187 if(p >= pBins[10]) return 10; // largest momentum bin
1188
1189
1190 // calculate momentum bin for non extremal momenta
1191 for(Int_t iMomBin = 1; iMomBin < 11; iMomBin++){
1192 if(p < pBins[iMomBin]){
1193 pBin1 = iMomBin - 1;
1194 pBin2 = iMomBin;
1195 }
1196 else
1197 continue;
1198
1199 if(p - pBins[pBin1] >= pBins[pBin2] - p){
1200 return pBin2;
1201 }
1202 else{
1203 return pBin1;
1204 }
1205 }
1206
1207 return -1;
1208
1209
1210}
1211//__________________________________________________________________________
1212
1213