1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
20 // Several studies done on clean samples of electrons, pions and kaons
22 // Compatible with both ESDs and AODs
25 // Matus Kalisky <matus.kalisky@cern.ch>
26 // Markus Heide <mheide@uni-muenster.de>
27 // Markus Fasel <M.Fasel@gsi.de>
32 #include <TObjArray.h>
35 #include <TMultiLayerPerceptron.h>
38 #include "AliAODMCParticle.h"
39 #include "AliAODEvent.h"
40 #include "AliAODTrack.h"
41 #include "AliESDtrack.h"
42 #include "AliESDEvent.h"
43 #include "AliMCEvent.h"
44 #include "AliMCParticle.h"
46 #include "AliESDpid.h"
47 #include "AliVParticle.h"
50 #include "AliHFEcollection.h"
51 #include "AliHFEpidQA.h"
52 #include "AliHFEV0info.h"
53 #include "AliHFEV0pid.h"
54 #include "AliHFEV0pidMC.h"
55 #include "AliHFEV0cuts.h"
56 #include "AliHFEtrdPIDqa.h"
61 //__________________________________________
62 AliHFEpidQA::AliHFEpidQA():
73 // Default constructor
75 for(Int_t mom = 0; mom < 11; mom++){
80 //__________________________________________
81 AliHFEpidQA::AliHFEpidQA(const AliHFEpidQA &ref):
95 for(Int_t mom = 0; mom < 11; mom++){
101 //__________________________________________
102 AliHFEpidQA &AliHFEpidQA::operator=(const AliHFEpidQA &ref){
104 // Assignment operator
111 //__________________________________________
112 AliHFEpidQA::~AliHFEpidQA(){
116 if(fV0pid) delete fV0pid;
117 if(fV0pidMC) delete fV0pidMC;
118 if(fTRDpidQA) delete fTRDpidQA;
119 if(fOutput) delete fOutput;
120 // if(fTRDpidResponse) delete fTRDpidResponse;
123 //__________________________________________
124 void AliHFEpidQA::Copy(TObject &o) const {
131 AliHFEpidQA &target = dynamic_cast<AliHFEpidQA &>(o);
134 if(target.fESDpid) delete target.fESDpid;
135 target.fESDpid = new AliESDpid;
136 if(target.fV0pid) delete target.fV0pid;
138 target.fV0pid = dynamic_cast<AliHFEV0pid *>(fV0pid->Clone());
140 target.fV0pid = NULL;
141 if(target.fV0pidMC) delete target.fV0pidMC;
143 target.fV0pidMC = dynamic_cast<AliHFEV0pidMC *>(fV0pidMC->Clone());
145 target.fV0pidMC = NULL;
146 if(target.fTRDpidQA) delete target.fTRDpidQA;
148 target.fTRDpidQA = dynamic_cast<AliHFEtrdPIDqa *>(fTRDpidQA->Clone());
150 target.fTRDpidQA = NULL;
151 if(target.fOutput) delete target.fOutput;
153 target.fOutput = dynamic_cast<AliHFEcollection *>(fOutput->Clone());
156 //__________________________________________
157 void AliHFEpidQA::Init(){
159 // Prepare task output
164 for(Int_t mom = 0; mom < 11; mom++){
165 fNet[mom] = (TMultiLayerPerceptron*) fNNref->Get(Form("NN_Mom%d", mom));
167 AliError(Form("No reference network for momentum bin %d!", mom));
172 fV0pid = new AliHFEV0pid();
173 if(HasV0pidQA()) fV0pid->InitQA();
174 fV0pidMC = new AliHFEV0pidMC();
177 fTRDpidQA = new AliHFEtrdPIDqa;
180 fOutput = new AliHFEcollection("pidQA", "PID QA output");
182 const char *name[4] = {"Electron", "PionK0", "PionL", "Proton"};
183 const char *title[4] = {"Electron", "K0 Pion", "Lambda Pion", "Proton"};
184 const char *det[4] = {"ITS", "TPC", "TRD", "TOF"};
185 for(Int_t i = 0; i < 4; i++){
186 fOutput->CreateTH2F(Form("purity%s", name[i]), Form("%s Purity", title[i]), 2, -0.5, 1.5, 20, 0.1, 10, 1);
188 for(Int_t idet = 0; idet < 4; idet++){
189 // create all the histograms which all the detectors have in common
190 if(idet != 2){ // no nSigma histogram for TRD
191 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);
193 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);
194 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);
195 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);
201 fOutput->CreateTH2F(Form("hITS_Signal_%s", name[i]), Form("ITS Signal org. for %ss", title[i]), 40, 0.1, 10, 400, 0, 1000, 0);
202 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);
207 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);
212 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);
213 // number of the non 0 slices per tracklet
214 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);
215 // location of the slices > 0 - where are the emtpy slices located ?
216 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);
217 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);
218 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);
223 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);
224 }//.. loop over identified particle species
227 fOutput->CreateTH1F("hITS_dEdx_nSamples", "ITS - number of non 0 dEdx samples", 4, 0.5, 4.5);
228 fOutput->CreateTH2F("hTPC_PID", "TPC pid all tracks; tpc pid probability; species",100, 0, 1, 5, -0.5, 4.5 );
229 fOutput->CreateTH2F("hTOF_PID", "TOF pid all tracks; tof pid probability; species",100, 0, 1,5, -0.5, 4.5 );
230 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);
231 fOutput->CreateTH2F("hTOF_qa_TmT0mT", "TOF (t - t0 - t[pion]) qa verus run", 10000, 114000, 124000, 200, -200, 200);
232 fOutput->CreateTH2F("hTOF_qa_length", "TOF track length verus run", 10000, 114000, 112400, 200, 0, 1000);
237 fOutput->CreateTH2F("hITS_kFlags", "ITS flags; flag; V0 candidates", 5, 0.5, 5.5, 5, -0.5, 4.5);
238 fOutput->CreateTH2F("hTPC_kFlags", "TPC flags; flag; V0 candidates", 5, 0.5, 5.5, 5, -0.5, 4.5);
239 fOutput->CreateTH2F("hTRD_kFlags", "TRD flags; flag; V0 candidates", 5, 0.5, 5.5, 5, -0.5, 4.5);
240 fOutput->CreateTH2F("hTOF_kFlags", "TOF flags; flag; V0 candidates", 5, 0.5, 5.5, 5, -0.5, 4.5);
244 // event based histograms
246 Int_t nT0[2] = {10000, 100};
247 Double_t minT0[2] = {114500, -1000};
248 Double_t maxT0[2] = {124500, 1000};
249 fOutput->CreateTHnSparse("hEvent_T0", "T0 as a function of run number; run number; T0 (ns)", 2, nT0, minT0, maxT0);
252 // test the tender V0 supply
254 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);
255 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);
262 // Create Illumination Plot
263 // bins: species, pt, eta, phi, TPC status, TRD status
265 Int_t nbins[6] = {4, 40, 16, 72, 2, 2};
266 Double_t min[6] = { 0, 0.1, -0.8, 0., 0., 0.};
267 Double_t max[6] = { 4., 20., 0.8, 2*TMath::Pi(), 2., 2.};
268 fOutput->CreateTHnSparse("hIllumination", "Illumination", 6, nbins, min, max);
269 fOutput->BinLogAxis("hIllumination", 1);
273 // bins: species, pt, n TPC clusters., TPC electron likelihood, TPC n sigmas, TPC signal
275 Int_t nbins[6] = { 5, 40, 20, 100, 100, 200};
276 Double_t min[6] = { -0.5, 0.1, 0., 0., -5., 0.};
277 Double_t max[6] = { 4.5, 20., 200, 1., 5., 120.};
278 TString htitle = "TPC info sparse; VO identified species; p (GeV/c); n TPC clusters; TPC N sigma; TPC signal";
279 fOutput->CreateTHnSparse("hTPCclusters",htitle,6, nbins, min, max);
280 fOutput->BinLogAxis("hTPCclusters", 1);
282 // TRD THnSparse - entries per tracklet
283 // species, p, tracklet position, number of PID tracklets, number of slices (non 0), number of clusters, electron likelihood,
286 Int_t nbins[7] = {5, 20, 6, 7, 9, 45, 100};
287 Double_t min[7] = {-0.5, 0.5, -0.5, -0.5, -0.5, -0.5, 0.};
288 Double_t max[7] = {4.5, 10, 5.5, 6.5, 8.5, 179.5, 1.};
289 TString htitle = "TRD tracklets; VO identified species; p (GeV/c); tracklet position; No. PID tacklets; No. slices; No. clusters; El. likelihood";
290 fOutput->CreateTHnSparse("hTRDtracklets",htitle,7, nbins, min, max);
291 fOutput->BinLogAxis("hTRDtracklets", 1);
296 //__________________________________________
297 void AliHFEpidQA::Process(){
303 AliError("V0pid not available! Forgotten to initialize?");
307 AliError("fESDpid not initialized, I am leaving this!");
311 // to be udpated to AOD save mdoe
313 AliError("AliVEvent not available, returning");
317 if(fMC) fV0pidMC->SetMCEvent(fMC);
318 if(fMC) fV0pid->SetMCEvent(fMC);
320 fV0pid->Process(fEvent);
321 TObjArray *hfeelectrons = fV0pid->GetListOfElectrons();
322 TObjArray *hfepionsK0 = fV0pid->GetListOfPionsK0();
323 TObjArray *hfepionsL = fV0pid->GetListOfPionsL();
324 TObjArray *hfeprotons = fV0pid->GetListOfProtons();
326 // Get Track list for normal purpose
327 TObjArray *electrons = MakeTrackList(hfeelectrons);
328 TObjArray *pionsK0 = MakeTrackList(hfepionsK0);
329 TObjArray *pionsL = MakeTrackList(hfepionsL);
330 TObjArray *protons = MakeTrackList(hfeprotons);
331 TObjArray *cleanElectrons = MakeCleanListElectrons(hfeelectrons);
334 fV0pidMC->Process(electrons, AliHFEV0cuts::kRecoElectron);
335 fV0pidMC->Process(pionsK0, AliHFEV0cuts::kRecoPionK0);
336 fV0pidMC->Process(pionsL, AliHFEV0cuts::kRecoPionL);
337 fV0pidMC->Process(protons, AliHFEV0cuts::kRecoProton);
340 AliDebug(2, Form("Number of Electrons : %d", electrons->GetEntries()));
341 AliDebug(2, Form("Number of K0 Pions : %d", pionsK0->GetEntries()));
342 AliDebug(2, Form("Number of Lambda Pions : %d", pionsL->GetEntries()));
343 AliDebug(2, Form("Number of Protons : %d", protons->GetEntries()));
345 AliDebug(2, "MC Information available. Doing Purity checks...");
346 // Calculate the purity of the clean samples using MC
347 MakePurity(electrons, AliHFEV0cuts::kRecoElectron);
348 MakePurity(pionsK0, AliHFEV0cuts::kRecoPionK0);
349 MakePurity(pionsL, AliHFEV0cuts::kRecoPionL);
350 MakePurity(protons, AliHFEV0cuts::kRecoProton);
353 // some event wise checks
356 // Make Illumination Plot
357 FillIllumination(electrons, AliHFEV0cuts::kRecoElectron);
358 FillIllumination(pionsK0, AliHFEV0cuts::kRecoPionK0);
359 FillIllumination(pionsL, AliHFEV0cuts::kRecoPionL);
360 FillIllumination(protons, AliHFEV0cuts::kRecoProton);
362 // Now we can do studies on the PID itself
363 // For TRD use the TRD PID QA object
364 fTRDpidQA->ProcessTracks(cleanElectrons, AliPID::kElectron);
365 fTRDpidQA->ProcessTracks(pionsK0, AliPID::kPion);
366 fTRDpidQA->ProcessTracks(pionsL, AliPID::kPion);
367 fTRDpidQA->ProcessTracks(protons, AliPID::kProton);
369 FillElectronLikelihoods(electrons, AliHFEV0cuts::kRecoElectron);
370 FillElectronLikelihoods(pionsK0, AliHFEV0cuts::kRecoPionK0);
371 FillElectronLikelihoods(pionsL, AliHFEV0cuts::kRecoPionL);
372 FillElectronLikelihoods(protons, AliHFEV0cuts::kRecoProton);
374 FillPIDresponse(electrons, AliHFEV0cuts::kRecoElectron);
375 FillPIDresponse(pionsK0, AliHFEV0cuts::kRecoPionK0);
376 FillPIDresponse(pionsL, AliHFEV0cuts::kRecoPionL);
377 FillPIDresponse(protons, AliHFEV0cuts::kRecoProton);
379 // check the tender V0s
380 CheckTenderV0pid(electrons, AliHFEV0cuts::kRecoElectron);
381 CheckTenderV0pid(pionsK0, AliHFEV0cuts::kRecoPionK0);
382 CheckTenderV0pid(pionsL, AliHFEV0cuts::kRecoPionL);
383 CheckTenderV0pid(protons, AliHFEV0cuts::kRecoProton);
385 // Analysis done, flush the containers
392 delete cleanElectrons;
395 //__________________________________________
396 void AliHFEpidQA::FillIllumination(const TObjArray * const tracks, Int_t species){
398 // Fill Illumination Plot
400 THnSparseF *hIllumination = dynamic_cast<THnSparseF *>(fOutput->Get("hIllumination"));
401 if(!hIllumination) return;
403 Double_t quantities[6]; memset(quantities, 0, sizeof(Double_t) *6);
404 TIter trackIter(tracks);
406 quantities[0] = species;
407 TObject *o = NULL; AliESDtrack *esdtrack = NULL;
408 while((o = trackIter())){
409 if(!TString(o->IsA()->GetName()).CompareTo("AliESDtrack")){
410 // work on local copy in order to not spoil others
411 esdtrack = new AliESDtrack(*(static_cast<AliESDtrack *>(o)));
412 if(!esdtrack) continue;
413 } else if(!TString(o->IsA()->GetName()).CompareTo("AliAODrack")){
414 // Bad hack: Fill ESD track with AOD information
415 esdtrack = new AliESDtrack(dynamic_cast<AliAODTrack *>(o));
416 if(!esdtrack) continue;
422 // Propagate to the entrance of the TRD
423 esdtrack->PropagateTo(300, fEvent->GetMagneticField());
424 quantities[1] = esdtrack->Pt();
425 quantities[2] = esdtrack->Eta();
426 quantities[3] = esdtrack->Phi();
427 quantities[4] = (esdtrack->GetStatus() & AliESDtrack::kTPCrefit) ? 1 : 0;
428 quantities[5] = (esdtrack->GetStatus() & AliESDtrack::kTRDout) ? 1. : 0.;
429 hIllumination->Fill(quantities);
434 //__________________________________________
435 void AliHFEpidQA::FillTPCinfo(AliESDtrack *const esdtrack, Int_t species){
437 // Fill TPC Cluster Plots
439 THnSparseF *hTPCclusters = dynamic_cast<THnSparseF *>(fOutput->Get("hTPCclusters"));
440 if(!hTPCclusters) return;
442 Double_t quantities[6]; memset(quantities, 0, sizeof(Double_t) *6);
444 Double_t pidProbs[5];
445 const Int_t typePID[5] = {0, 2, 2, 3, 4};
448 quantities[0] = species;
451 esdtrack->GetTPCpid(pidProbs);
453 quantities[1] = esdtrack->P();
454 quantities[2] = esdtrack->GetTPCNcls();
455 quantities[3] = pidProbs[0];
456 quantities[4] = fESDpid->NumberOfSigmasTPC(esdtrack,(AliPID::EParticleType)typePID[species]);
457 quantities[5] = esdtrack->GetTPCsignal();
458 hTPCclusters->Fill(quantities);
462 //__________________________________________
463 void AliHFEpidQA::MakePurity(const TObjArray *tracks, Int_t species){
465 // Fill the QA histos for a given species
468 AliDebug(3, Form("Doing Purity checks for species %d", species));
469 Int_t pdg = GetPDG(species);
473 case AliHFEV0cuts::kRecoElectron:
474 hname = "purityElectron";
476 case AliHFEV0cuts::kRecoPionK0:
477 hname = "purityPionK0";
479 case AliHFEV0cuts::kRecoPionL:
480 hname = "purityPionL";
482 case AliHFEV0cuts::kRecoProton:
483 hname = "purityProton";
485 default: // non investigated species
486 AliDebug(3, "Species not investigated");
490 AliDebug(3, Form("Number of tracks: %d", tracks->GetEntries()));
491 TIter trackIter(tracks);
492 AliVParticle *recTrack = NULL, *mcTrack = NULL;
493 while((recTrack = dynamic_cast<AliVParticle *>(trackIter()))){
494 Int_t label = recTrack->GetLabel();
495 AliDebug(4, Form("MC Label %d", label));
496 mcTrack =fMC->GetTrack(TMath::Abs(label));
498 AliDebug(4, "MC track not available");
499 continue; // we don't know
504 if(!TString(mcTrack->IsA()->GetName()).CompareTo("AliMCParticle")){
506 AliMCParticle *mcp = dynamic_cast<AliMCParticle *>(mcTrack);
508 trackPdg = TMath::Abs(mcp->Particle()->GetPdgCode());
511 AliAODMCParticle *aodmcp = dynamic_cast<AliAODMCParticle *>(mcTrack);
512 if(!aodmcp) continue;
513 trackPdg = TMath::Abs(aodmcp->GetPdgCode());
515 if(trackPdg == pdg) // Correct identification
517 fOutput->Fill(hname, 0., recTrack->Pt());
519 else // Wrong identification
520 fOutput->Fill(hname, 1., recTrack->Pt());
524 //__________________________________________
525 void AliHFEpidQA::FillElectronLikelihoods(const TObjArray * const particles, Int_t species){
527 // Fill electron Likelihoods for the ITS, TPC and TOF
528 // Required for the calculation of the electron efficiency,
529 // pion and proton efficiency and the thresholds
532 const TString detname[4] = {"ITS", "TPC", "TRD", "TOF"};
536 case AliHFEV0cuts::kRecoElectron:
537 specname = "Electron";
539 case AliHFEV0cuts::kRecoPionK0:
542 case AliHFEV0cuts::kRecoPionL:
545 case AliHFEV0cuts::kRecoProton:
549 AliDebug(2, Form("Species %d not investigated", species));
552 AliVParticle *recTrack = NULL;
553 // mcTrack =fMC->GetTrack(TMath::Abs(label));
555 // AliDebug(4, "MC track not available");
556 // continue; // we don't know
559 TIter trackIter(particles);
561 Double_t quantities[2];
562 Double_t pidProbs[5];
564 while((recTrack = dynamic_cast<AliVParticle *>(trackIter()))){
565 if(!TString(recTrack->IsA()->GetName()).CompareTo("AliESDtrack")){
567 AliESDtrack *esdTrack = dynamic_cast<AliESDtrack *>(recTrack);
568 if(!esdTrack) continue;
569 status = esdTrack->GetStatus();
571 //TPC momentum and likelihoods
573 pTPC = esdTrack->GetInnerParam() ? esdTrack->GetInnerParam()->P() : esdTrack->P();
574 Bool_t mcFound = kFALSE;
576 Int_t label = esdTrack->GetLabel();
577 AliMCParticle *mcTrack = dynamic_cast<AliMCParticle *>(fMC->GetTrack(label));
578 Int_t pdg = GetPDG(species);
581 trackPdg = TMath::Abs(mcTrack->Particle()->GetPdgCode());
583 if(pdg == trackPdg) mcFound = kTRUE;
585 quantities[0] = pTPC;
586 Bool_t detFlagSet = kFALSE;
587 for(Int_t idet = 0; idet < 4; idet++){
588 TString histname, histnameMC;
589 histname = "h" + detname[idet] + "_El_like_" + specname;
590 histnameMC = "h" + detname[idet] + "_El_like_MC_" + specname;
593 case kITS: esdTrack->GetITSpid(pidProbs);
594 detFlagSet = status & AliESDtrack::kITSpid;
596 case kTPC: esdTrack->GetTPCpid(pidProbs);
597 detFlagSet = status & AliESDtrack::kTPCpid;
599 case kTRD: esdTrack->GetTRDpid(pidProbs);
600 detFlagSet = status & AliESDtrack::kTRDpid;
602 case kTOF: esdTrack->GetTOFpid(pidProbs);
603 detFlagSet = status & AliESDtrack::kTOFpid;
606 quantities[1] = pidProbs[AliPID::kElectron];
607 // in case of TRD require 6 PID tracklets
608 if(kTRD == idet && esdTrack->GetTRDntrackletsPID() != 6) continue;
610 fOutput->Fill(histname, quantities[0], quantities[1]);
612 fOutput->Fill(histnameMC, quantities[0], quantities[1]);
621 //__________________________________________
622 void AliHFEpidQA::FillPIDresponse(const TObjArray * const particles, Int_t species){
624 // Fill the PID response of different detectors to V0 daughter particles
626 TString hname, hname2, hname3;
628 const TString typeName[5] = {"Electron", "PionK0", "PionL", "Kaon", "Proton"};
629 const Int_t typePID[5] = {0, 2, 2, 3, 4};
633 // 0) species, 1) momentum, 2) DCA xy, 3) DCA z
635 // 5) TPC Ncls 6) TPC signal 7) TPC nSigma,
636 // 8) TRD Ntrk, 9) TRD Ncls, 10) TRD dEdx,
641 Int_t run = fEvent->GetRunNumber();
643 AliVParticle *recTrack = NULL;
644 TIter trackIter(particles);
645 while((recTrack = dynamic_cast<AliVParticle *>(trackIter()))){
646 for(Int_t i=0; i<12; ++i) data[i] = -99.;
648 if(!TString(recTrack->IsA()->GetName()).CompareTo("AliESDtrack")){
650 AliESDtrack *esdTrack = dynamic_cast<AliESDtrack *>(recTrack);
651 if(!esdTrack) continue;
653 // for the PID THnSparse
655 data[1] = esdTrack->P();
656 Float_t impactR = -1.;
657 Float_t impactZ = -1.;
658 esdTrack->GetImpactParameters(impactR, impactZ);
661 data[11] = 0; // initialize the TOF pid cut on elecgrons to false
662 // use ONLY tracks with PID flag TRUE
664 status = esdTrack->GetStatus();
670 fOutput->Fill("hITS_kFlags", 5., species);
671 if(status & AliESDtrack::kITSin) fOutput->Fill("hITS_kFlags", 1., species);
672 if(status & AliESDtrack::kITSout) fOutput->Fill("hITS_kFlags", 2., species);
673 if(status & AliESDtrack::kITSrefit) fOutput->Fill("hITS_kFlags", 3., species);
674 if(status & AliESDtrack::kITSpid) fOutput->Fill("hITS_kFlags", 4., species);
676 fOutput->Fill("hTPC_kFlags", 5., species);
677 if(status & AliESDtrack::kTPCin) fOutput->Fill("hTPC_kFlags", 1., species);
678 if(status & AliESDtrack::kTPCout) fOutput->Fill("hTPC_kFlags", 2., species);
679 if(status & AliESDtrack::kTPCrefit) fOutput->Fill("hTPC_kFlags", 3., species);
680 if(status & AliESDtrack::kTPCpid) fOutput->Fill("hTPC_kFlags", 4., species);
682 fOutput->Fill("hTRD_kFlags", 5., species);
683 if(status & AliESDtrack::kTRDin) fOutput->Fill("hTRD_kFlags", 1., species);
684 if(status & AliESDtrack::kTRDout) fOutput->Fill("hTRD_kFlags", 2., species);
685 if(status & AliESDtrack::kTRDrefit) fOutput->Fill("hTRD_kFlags", 3., species);
686 if(status & AliESDtrack::kTRDpid) fOutput->Fill("hTRD_kFlags", 4., species);
688 fOutput->Fill("hTOF_kFlags", 5., species);
689 if(status & AliESDtrack::kTOFin) fOutput->Fill("hTOF_kFlags", 1., species);
690 if(status & AliESDtrack::kTOFout) fOutput->Fill("hTOF_kFlags", 2., species);
691 if(status & AliESDtrack::kTOFrefit) fOutput->Fill("hTOF_kFlags", 3., species);
692 if(status & AliESDtrack::kTOFpid) fOutput->Fill("hTOF_kFlags", 4., species);
698 if(status & AliESDtrack::kITSpid){
699 Double_t p = esdTrack->P();
702 //Double_t itsSignal = esdTrack->GetITSsignal();
705 Double_t dEdxSamples[4];
706 esdTrack->GetITSdEdxSamples(dEdxSamples);
708 Double_t dEdxSum = 0.;
709 hname = "hITS_dEdx_" + typeName[species];
710 for(Int_t i=0; i<4; ++i){
711 if(dEdxSamples[i] > 0){
713 fOutput->Fill(hname, i+1, p, dEdxSamples[i]);
714 dEdxSum += dEdxSamples[i];
717 if(4 == nSamples)fOutput->Fill(hname, 0, p, dEdxSum);
718 fOutput->Fill("hITS_dEdx_nSamples", nSamples);
720 Double_t signal = esdTrack->GetITSsignal();
721 hname = "hITS_Signal_" + typeName[species];
722 fOutput->Fill(hname, p, signal);
725 // ITS number of signas
726 Double_t nsigma = fESDpid->NumberOfSigmasITS(esdTrack,(AliPID::EParticleType)typePID[species]);
727 hname = "hITS_nSigma_" + typeName[species];
728 fOutput->Fill(hname, p, nsigma);
730 Double_t itsPID[5] = {-1, -1, -1, -1, -1};
731 esdTrack->GetITSpid(itsPID);
732 Int_t ix = GetMaxPID(itsPID);
733 hname = "hITS_PID_p_" + typeName[species];
734 fOutput->Fill(hname, p, ix);
740 if(status & AliESDtrack::kTPCpid){
741 // Make TPC clusters Plot
742 data[5] = esdTrack->GetTPCNcls();
743 FillTPCinfo(esdTrack, species);
745 Double_t p = esdTrack->GetInnerParam() ? esdTrack->GetInnerParam()->P() : esdTrack->P();
747 Double_t dEdx = esdTrack->GetTPCsignal();
748 hname = "hTPC_dEdx_" + typeName[species];
749 fOutput->Fill(hname, p, dEdx);
752 //TPC number of sigmas
753 Double_t nsigma = fESDpid->NumberOfSigmasTPC(esdTrack,(AliPID::EParticleType)typePID[species]);
754 hname = "hTPC_nSigma_" + typeName[species];
755 fOutput->Fill(hname, p, nsigma);
759 hname = "hTPC_PID_p_" + typeName[species];
760 Double_t tpcPID[5] = {-1, -1, -1, -1, -1};
761 esdTrack->GetTPCpid(tpcPID);
762 Int_t ix = GetMaxPID(tpcPID);
763 fOutput->Fill(hname, p, ix);
770 if(status & AliESDtrack::kTRDpid){
771 Double_t p = esdTrack->GetOuterParam() ? esdTrack->GetOuterParam()->P() : esdTrack->P();
773 // TRD number of tracklets
774 Int_t ntrk = esdTrack->GetTRDntrackletsPID();
775 hname = "hTRD_trk_" + typeName[species];
776 fOutput->Fill(hname, p, ntrk);
780 hname = "hTRD_PID_p_" + typeName[species];
781 Double_t trdPID[5] = {-1., -1., -1., -1., -1};
782 esdTrack->GetTRDpid(trdPID);
783 Int_t ix = GetMaxPID(trdPID);
784 fOutput->Fill(hname, p, ix);
786 Int_t ncls = esdTrack->GetTRDncls();
787 hname = "hTRD_cls_" + typeName[species];
788 fOutput->Fill(hname, p, ncls);
791 // TRD - per tracklet - dEdx per, likelihood
792 hname = "hTRD_Nslc_" + typeName[species];
793 hname2 = "hTRD_slc_" + typeName[species];
794 hname3 = "hTRD_dEdx_" + typeName[species];
795 Int_t nSlices = esdTrack->GetNumberOfTRDslices();
796 Double_t sumTot = 0.;
798 for(Int_t l=0; l< 6; ++l){
799 Double_t trkData[7] = {-1.,-1, -1, -1, -1, -1, -1};
800 trkData[0] = species;
807 for(Int_t s=0; s<nSlices; ++s){
808 Double_t slice = esdTrack->GetTRDslice(l, s);
812 fOutput->Fill(hname2, p, s);
817 fOutput->Fill(hname, p, not0);
818 fOutput->Fill(hname3, p, sum);
823 // lkelihoods per layer
824 if(not0Tot > 0 && fNNref){
825 Double_t likelihoods[5] = {-1., -1., -1., -1., -1};
826 TRDlikeTracklet(l, esdTrack, likelihoods);
827 trkData[6] = likelihoods[0];
828 //printf(" -D: species: %i, P; %f : %f, s: %f\n", species, p, likelihoods[0], s);
830 if(not0Tot) fOutput->Fill("hTRDtracklets", trkData);
832 // average dEx per number of tracklets
834 data[10] = sumTot / not0Tot;
841 if(status & AliESDtrack::kTOFpid){
842 Double_t p = esdTrack->GetOuterParam() ? esdTrack->GetOuterParam()->P() : esdTrack->P();
843 Double_t t0 = fESDpid->GetTOFResponse().GetStartTime(esdTrack->P());
846 hname = "hTOF_beta_" + typeName[species];
847 Float_t beta = TOFbeta(esdTrack);
848 fOutput->Fill(hname, p, beta);
849 fOutput->Fill("hTOF_beta_all", p, beta);
851 Double_t nsigma = fESDpid->NumberOfSigmasTOF(esdTrack,(AliPID::EParticleType)typePID[species], 0.);
852 hname = "hTOF_nSigma_" + typeName[species];
853 fOutput->Fill(hname, p, nsigma);
854 if(beta > 0.97 && beta < 1.03){
859 hname = "hTOF_PID_p_" + typeName[species];
860 Double_t tofPID[5] = {-1., -1., -1., -1., -1};
861 esdTrack->GetTOFpid(tofPID);
862 Int_t ix = GetMaxPID(tofPID);
863 fOutput->Fill(hname, p, ix);
866 // - distribution of (time - t0 - pion_time)
868 esdTrack->GetIntegratedTimes(times);
869 Double_t tItrackL = esdTrack->GetIntegratedLength();
870 Double_t tTOFsignal = esdTrack->GetTOFsignal();
871 Double_t dT = tTOFsignal - t0 - times[2];
872 fOutput->Fill("hTOF_qa_TmT0mT", run*1.0, dT);
873 fOutput->Fill("hTOF_qa_length", run*1.0, tItrackL);
877 // temporary - the PIDsparse needs rebuilding
878 //fOutput->Fill("PIDsparse", data);
880 // AOD - comming soon
884 }// .. tracks in TObjArray
888 //__________________________________________
889 void AliHFEpidQA:: CheckEvent(){
891 // check some event variables
894 // check the T0 as a function of run number (less than one bin per number
895 Double_t t0 = fESDpid->GetTOFResponse().GetTimeZero();
896 Int_t run = fEvent->GetRunNumber();
897 Double_t data[2] = {run*1.0, t0*1000.};
898 fOutput->Fill("hEvent_T0", data);
902 //__________________________________________
903 TList *AliHFEpidQA::GetOutput(){
905 // Getter for Output histograms
907 return fOutput->GetList();
910 //__________________________________________
911 TList *AliHFEpidQA::GetV0pidQA(){
913 // Getter for V0 PID QA histograms
915 return fV0pid->GetListOfQAhistograms();
918 //__________________________________________
919 TList *AliHFEpidQA::GetV0pidMC(){
921 // Getter for V0 PID QA histograms
924 return fV0pidMC->GetListOfQAhistograms();
928 //__________________________________________
929 void AliHFEpidQA::RecalculateTRDpid(AliESDtrack * /*track*/, Double_t * /*pidProbs*/) const{
930 // fTRDpidResponse->MakePID(track);
931 // track->GetTRDpid(pidProbs);
934 //__________________________________________
935 void AliHFEpidQA::RecalculateTRDpid(AliAODTrack * /*track*/, Double_t * /*pidProbs*/) const{
936 // fTRDpidResponse->MakePID(track, pidProbs);
938 //___________________________________________________________________
939 Float_t AliHFEpidQA::TOFbeta(AliESDtrack * const track) const {
940 // computes the TOF beta
941 Double_t l = track->GetIntegratedLength(); // cm
942 Double_t t = track->GetTOFsignal();
943 Double_t t0 = fESDpid->GetTOFResponse().GetTimeZero(); // ps
945 //printf("-D: l: %f, t: %f, t0: %f\n", l, t, t0);
947 if(l < 360. || l > 800.) return 0.;
948 if(t <= 0.) return 0.;
949 if(t0 >999990.0) return 0.;
952 t -= t0; // subtract the T0
955 t *= 1e-12; //ps -> s
959 Float_t beta = v / TMath::C();
963 //____________________________________________
964 Int_t AliHFEpidQA::GetMaxPID(const Double_t *pidProbs) const {
966 // return the index of maximal PID probability
970 for(Int_t i=0; i<5; ++i){
971 if(pidProbs[i] > tmp){
978 //_____________________________________________
979 Int_t AliHFEpidQA::GetPDG(Int_t species){
981 // return the PDG particle code
987 case AliHFEV0cuts::kRecoElectron:
988 pdg = TMath::Abs(kElectron);
990 case AliHFEV0cuts::kRecoPionK0:
991 pdg = TMath::Abs(kPiPlus);
993 case AliHFEV0cuts::kRecoPionL:
994 pdg = TMath::Abs(kPiPlus);
996 case AliHFEV0cuts::kRecoProton:
997 pdg = TMath::Abs(kProton);
999 default: // non investigated species
1000 AliDebug(3, "Species not recognised");
1008 //_____________________________________________
1009 TObjArray * AliHFEpidQA::MakeTrackList(const TObjArray *tracks) const {
1011 // convert list of AliHFEV0Info into a list of AliVParticle
1013 TObjArray *output = new TObjArray;
1014 TIter trackInfos(tracks);
1015 AliHFEV0info *trackInfo = NULL;
1016 while((trackInfo = dynamic_cast<AliHFEV0info *>(trackInfos())))
1017 output->Add(trackInfo->GetTrack());
1022 //_____________________________________________
1023 TObjArray * AliHFEpidQA::MakeCleanListElectrons(const TObjArray *electrons) const {
1025 // Cleanup electron sample using TPC PID
1026 // PID requirement will allways be implemented to the pair
1029 TObjArray *tracks = new TObjArray;
1030 TIter candidates(electrons);
1031 AliESDEvent *esd; AliAODEvent *aod;
1032 AliHFEV0info *hfetrack;
1033 // const Double_t kSigmaTight = 1.;
1034 // const Double_t kSigmaLoose = 4.;
1035 const Double_t kSigmaTight = 2.;
1036 const Double_t kSigmaLoose = 2.;
1037 const Double_t shift = 0.57;
1038 if((esd = dynamic_cast<AliESDEvent *>(fEvent))){
1039 AliESDtrack *track = NULL, *partnerTrack = NULL;
1040 while((hfetrack = dynamic_cast<AliHFEV0info *>(candidates()))){
1041 track = dynamic_cast<AliESDtrack *>(hfetrack->GetTrack());
1042 if(!track) continue;
1043 partnerTrack = esd->GetTrack(hfetrack->GetPartnerID());
1044 Double_t nSigmaTrack = TMath::Abs(fESDpid->NumberOfSigmasTPC(track, AliPID::kElectron) - shift);
1045 Double_t nSigmaPartner = TMath::Abs(fESDpid->NumberOfSigmasTPC(partnerTrack, AliPID::kElectron) - shift);
1046 if((nSigmaTrack < kSigmaTight && nSigmaPartner < kSigmaLoose) || (nSigmaTrack < kSigmaLoose && nSigmaPartner < kSigmaTight))
1050 aod = dynamic_cast<AliAODEvent *>(fEvent);
1051 if(!aod) return NULL;
1052 //AliAODTrack *track = NULL, *partnerTrack = NULL;
1053 while((hfetrack = dynamic_cast<AliHFEV0info *>(candidates()))){
1054 if(!hfetrack) continue;
1055 //track = dynamic_cast<AliAODTrack *>(hfetrack->GetTrack());
1056 //partnerTrack = aod->GetTrack(hfetrack->GetPartnerID());
1057 // will be coming soon
1062 //___________________________________________________________
1063 void AliHFEpidQA::CheckTenderV0pid(const TObjArray * const particles, Int_t species){
1066 // retrieve the status bits from the TObject used to flag
1067 // the V0 daughter tracks and return the found PID
1068 // 0 - electron, 1 - pion, 2 - proton
1071 const Int_t id[5] = {0, 1, 1, -1, 2}; // convert AliHFEpid to simple 0, 1, 2
1073 AliVParticle *recTrack = NULL;
1074 TIter trackIter(particles);
1075 while((recTrack = dynamic_cast<AliVParticle *>(trackIter()))){
1076 if(!TString(recTrack->IsA()->GetName()).CompareTo("AliESDtrack")){
1078 AliESDtrack *track = dynamic_cast<AliESDtrack *>(recTrack);
1079 if(!track) continue;
1080 Int_t tPID = GetTenderV0pid(track);
1081 fOutput->Fill("h_tender_check_01", id[species]*1.0, tPID);
1082 fOutput->Fill("h_tender_check_02", id[species], id[species]*1.0, tPID);
1086 }//.. iterate of tracks
1088 //___________________________________________________________
1089 Int_t AliHFEpidQA::GetTenderV0pid(AliESDtrack * const track){
1091 // retrieve the PID nformation stored in the status flags by the train tender
1102 if(track->TestBit(2<<14)){
1106 if(track->TestBit(2<<15)){
1110 if(track->TestBit(2<<16)){
1116 AliWarning("V0 track labeled multiple times by the V0 tender");
1123 //___________________________________________________________
1124 Double_t AliHFEpidQA::TRDlikeTracklet(Int_t layer, AliESDtrack * const track, Double_t *likelihood){
1126 // compute the TRD electron likelihoods for 1 tracklet
1127 // based on teh AliTRDpidRecalculator in train/until/tender
1128 // returns sum of the likelihoods (which should be 1)
1131 const Double_t cScaleGain = 1./ 16000.;
1132 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
1134 if(!track) return kFALSE;
1135 Float_t p = track->GetTRDmomentum(layer); // momentum for a tracklet in the ESDtrack
1136 if(p < 0) return kFALSE;
1138 Int_t mombin = TRDmomBin(p); // momentum bin
1139 if(mombin < 0) return -1.;
1140 Float_t dEdxTRDsum = 0; // dEdxTRDsum for checking if tracklet is available
1141 Float_t dEdxTRD[8]; // dEdx for a tracklet in the ESD slices
1142 Double_t ddEdxTRD[8]; // dEdx as Double_t for TMultiLayerPerceptron::Evaluate()
1144 Double_t prob[AliPID::kSPECIES]; // probabilities for all species in all layers
1146 for(Int_t is = 0; is < AliPID::kSPECIES; is++){
1147 likelihood[is] = 0.2; // init probabilities
1153 for(Int_t islice = 0; islice<8; islice++){
1154 dEdxTRD[islice]=0.; // init dE/dx
1155 ddEdxTRD[islice]=0.; // init dE/dx
1156 dEdxTRD[islice]=track->GetTRDslice(layer,islice); // get the dE/dx values
1157 dEdxTRDsum += dEdxTRD[islice];
1158 ddEdxTRD[islice]=(Double_t)dEdxTRD[islice]*cScaleGain; // rescale dE/dx
1161 for(Int_t is = 0; is < AliPID::kSPECIES; is++){
1162 Double_t probloc1, probloc2;
1163 if(mombin == 0 && mombin < pBins[0]){ // calculate PID for p > 0.6 GeV/c
1164 prob[is] = fNet[mombin]->Evaluate(is, ddEdxTRD);
1166 else if(mombin == 10 && mombin >= pBins[10]){ // calculate PID for p >= 10.0 GeV/c
1167 prob[is] = fNet[mombin]->Evaluate(is, ddEdxTRD);
1169 else{ // standard calculation
1170 Int_t mombin1 = 0, mombin2 = 0; // lower and upper momentum bin
1171 if(p < pBins[mombin]) {mombin1 = mombin -1; mombin2 = mombin;}
1172 if(p >= pBins[mombin]) {mombin1 = mombin; mombin2 = mombin+1;}
1173 probloc1 = fNet[mombin1]->Evaluate(is, ddEdxTRD);
1174 probloc2 = fNet[mombin2]->Evaluate(is, ddEdxTRD);
1175 // weighting of the probability with regard to the track momentum
1176 prob[is] = probloc1 + (probloc2-probloc1)*(p-pBins[mombin1])/(pBins[mombin2]-pBins[mombin1]);
1178 likelihood[is] = prob[is];
1179 sum += likelihood[is];
1184 //__________________________________________________________________________
1185 Int_t AliHFEpidQA::TRDmomBin(Double_t p) const {
1187 // compute the momentum bin position
1190 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
1192 Int_t pBin1 = -1; // check bin1
1193 Int_t pBin2 = -1; // check bin2
1195 if(p < 0) return -1; // return -1 if momentum < 0
1196 if(p < pBins[0]) return 0; // smallest momentum bin
1197 if(p >= pBins[10]) return 10; // largest momentum bin
1200 // calculate momentum bin for non extremal momenta
1201 for(Int_t iMomBin = 1; iMomBin < 11; iMomBin++){
1202 if(p < pBins[iMomBin]){
1203 pBin1 = iMomBin - 1;
1209 if(p - pBins[pBin1] >= pBins[pBin2] - p){
1221 //__________________________________________________________________________