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 *
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12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
16 // Class AliHFEtrdPIDqaV1
17 // Monitoring TRD PID in the HFE PID montioring framework. The following
18 // quantities are monitored:
19 // TRD electron likelihood
20 // TRD dE/dx (Absolute values)
21 // TPC dE/dx (Number of sigmas, control histogram)
22 // (Always as function of momentum, particle species and centrality
23 // before and after cut)
24 // More information about the PID monitoring framework can be found in
25 // AliHFEpidQAmanager.cxx and AliHFEdetPIDqa.cxx
28 // Markus Fasel <M.Fasel@gsi.de>
34 #include <THnSparse.h>
37 #include "AliESDtrack.h"
40 #include "AliPIDResponse.h"
42 #include "AliHFEcollection.h"
43 #include "AliHFEpidBase.h"
44 #include "AliHFEpidQAmanager.h"
45 #include "AliHFEpidTPC.h"
46 #include "AliHFEpidTRD.h"
47 #include "AliHFEtrdPIDqaV1.h"
49 ClassImp(AliHFEtrdPIDqaV1)
51 //____________________________________________________________
52 AliHFEtrdPIDqaV1::AliHFEtrdPIDqaV1():
61 //____________________________________________________________
62 AliHFEtrdPIDqaV1::AliHFEtrdPIDqaV1(const Char_t *name):
63 AliHFEdetPIDqa(name, "QA for TRD"),
67 // Default constructor
71 //____________________________________________________________
72 AliHFEtrdPIDqaV1::AliHFEtrdPIDqaV1(const AliHFEtrdPIDqaV1 &o):
81 //____________________________________________________________
82 AliHFEtrdPIDqaV1 &AliHFEtrdPIDqaV1::operator=(const AliHFEtrdPIDqaV1 &o){
86 if(this == &o) return *this;
87 AliHFEdetPIDqa::operator=(o);
93 //_________________________________________________________
94 Long64_t AliHFEtrdPIDqaV1::Merge(TCollection *coll){
96 // Merge with other objects
99 if(coll->IsEmpty()) return 1;
102 AliHFEtrdPIDqaV1 *refQA = NULL;
107 refQA = dynamic_cast<AliHFEtrdPIDqaV1 *>(o);
110 listHistos.Add(refQA->fHistos);
113 fHistos->Merge(&listHistos);
117 //_________________________________________________________
118 void AliHFEtrdPIDqaV1::Browse(TBrowser *b){
124 b->Add(fHistos, fHistos->GetName());
126 // Make Projections of the dE/dx Spectra and add them to a new Folder
127 TString specnames[4] = {"All", "Electrons", "Pions", "Protons"};
128 Int_t specind[4] = {-1, AliPID::kElectron, AliPID::kPion, AliPID::kProton};
129 TList *listTM = new TList;
131 TList *listLike = new TList;
132 listLike->SetOwner();
133 TList *listCharge = new TList;
134 listCharge->SetOwner();
135 TList *listTPCnsigma = new TList;
136 listTPCnsigma->SetOwner();
139 TList *lctm, *lclike, *lccharge, *lcTPCsig;
140 for(Int_t icent = -1; icent < 11; icent++){
142 lctm->SetName(icent < 0 ? "MinBias" : Form("Centrality%d", icent));
146 lclike->SetName(icent < 0 ? "MinBias" : Form("Centrality%d", icent));
148 listLike->Add(lclike);
149 lccharge = new TList;
150 lccharge->SetName(icent < 0 ? "MinBias" : Form("Centrality%d", icent));
151 lccharge->SetOwner();
152 listCharge->Add(lccharge);
153 lcTPCsig = new TList;
154 lcTPCsig->SetName(icent < 0 ? "MinBias" : Form("Centrality%d", icent));
155 lcTPCsig->SetOwner();
156 listTPCnsigma->Add(lcTPCsig);
157 for(Int_t ispec = 0; ispec < 4; ispec++){
158 for(Int_t istep = 0; istep < 2; istep++){
159 hptr = MakeTRDspectrumTM(static_cast<AliHFEdetPIDqa::EStep_t>(istep), specind[ispec], icent);
161 hptr->SetName(Form("hTRDtm%s%s", specnames[ispec].Data(), istep == 0 ? "Before" : "After"));
164 hptr = MakeTRDlikelihoodDistribution(static_cast<AliHFEdetPIDqa::EStep_t>(istep), specind[ispec], icent);
165 hptr->SetName(Form("hTRDlike%s%s", specnames[ispec].Data(), istep == 0 ? "Before" : "After"));
167 hptr = MakeTRDchargeDistribution(static_cast<AliHFEdetPIDqa::EStep_t>(istep), specind[ispec], icent);
168 hptr->SetName(Form("hTRDcharge%s%s", specnames[ispec].Data(), istep == 0 ? "Before" : "After"));
170 hptr = MakeTPCspectrumNsigma(static_cast<AliHFEdetPIDqa::EStep_t>(istep), specind[ispec], icent);
171 hptr->SetName(Form("hTPCspectrum%s%s", specnames[ispec].Data(), istep == 0 ? "Before" : "After"));
177 b->Add(listTM, "Projections Truncated Mean");
178 b->Add(listLike, "Projections Likelihood distribution");
179 b->Add(listCharge, "Projections Tracklet Charge");
180 b->Add(listTPCnsigma, "Projections TPC spectra");
185 //____________________________________________________________
186 void AliHFEtrdPIDqaV1::Initialize(){
188 // Initialize QA histos for TRD PID
191 AliDebug(1, "Initializing PID QA for TRD");
192 // Make common binning
193 const Int_t kPIDbins = AliPID::kSPECIES + 1;
194 const Int_t kSteps = 2;
195 const Double_t kMinPID = -1;
196 const Double_t kMinP = 0.;
197 const Double_t kMaxPID = (Double_t)AliPID::kSPECIES;
198 const Double_t kMaxP = 20.;
199 const Int_t kCentralityBins = 11;
201 // Define number of bins
202 Int_t kPbins = fQAmanager->HasHighResolutionHistos() ? 1000 : 100;
203 Int_t tpcSigmaBins = fQAmanager->HasHighResolutionHistos() ? 1400 : 140;
204 Int_t trdLikelihoodBins = fQAmanager->HasHighResolutionHistos() ? 200 : 100;
206 fHistos = new AliHFEcollection("trdqahistos", "Collection of TRD QA histograms");
208 // Create Control Histogram monitoring the TPC sigma between the selection steps
209 Int_t nBinsTPCSigma[5] = {kPIDbins, kPbins, tpcSigmaBins, kSteps, kCentralityBins};
210 Double_t minTPCSigma[5] = {kMinPID, kMinP, -12., 0., 0.};
211 Double_t maxTPCSigma[5] = {kMaxPID, kMaxP, 12., 2., 11.};
212 fHistos->CreateTHnSparse("hTPCsigma", "TPC sigma; species p [GeV/c]; TPC dEdx - <dE/dx>|_{el} [#sigma]; selection step", 5, nBinsTPCSigma, minTPCSigma, maxTPCSigma);
213 fHistos->Sumw2("hTPCsigma");
214 // Create Monitoring histogram for the Likelihood distribution
215 Int_t nBinsTRDlike[5] = {kPIDbins, kPbins, trdLikelihoodBins, kSteps, kCentralityBins};
216 Double_t minTRDlike[5] = {kMinPID, kMinP, 0., 0., 0.};
217 Double_t maxTRDlike[5] = {kMaxPID, kMaxP, 1., 2., 11.};
218 fHistos->CreateTHnSparse("hTRDlikelihood", "TRD Likelihood Distribution; species; p [GeV/c]; TRD electron Likelihood; selection step", 5, nBinsTRDlike, minTRDlike, maxTRDlike);
219 fHistos->Sumw2("hTRDlikelihood");
220 // Create Monitoring histogram for the TRD total charge
221 const Int_t kTRDchargeBins = 1000;
222 Int_t nBinsTRDcharge[5] = {kPIDbins, kPbins, kTRDchargeBins, kSteps, kCentralityBins};
223 Double_t minTRDcharge[5] = {kMinPID, kMinP, 0., 0., 0.};
224 Double_t maxTRDcharge[5] = {kMaxPID, kMaxP, 100000., 2., 11.};
225 fHistos->CreateTHnSparse("hTRDcharge", "Total TRD charge; species; p [GeV/c]; TRD charge [a.u.]; selection step", 5, nBinsTRDcharge, minTRDcharge, maxTRDcharge);
226 fHistos->Sumw2("hTRDcharge");
227 // Monitoring of the TRD truncated mean according to version 1
228 const Int_t kTRDtmBins = 1000;
229 Int_t nBinsTRDtm[5] = {kPIDbins, kPbins, kTRDtmBins, kSteps, kCentralityBins};
230 Double_t minTRDtm[5] = {kMinPID, kMinP, 0., 0., 0.};
231 Double_t maxTRDtm[5] = {kMaxPID, kMaxP, 20000., 2., 11.};
232 fHistos->CreateTHnSparse("hTRDtruncatedMean", "TRD truncated Mean; species; p [GeV/c]; TRD signal [a.u.]; selection step", 5, nBinsTRDtm, minTRDtm, maxTRDtm);
233 fHistos->Sumw2("hTRDtruncatedMean");
236 //____________________________________________________________
237 void AliHFEtrdPIDqaV1::ProcessTrack(const AliHFEpidObject *track, AliHFEdetPIDqa::EStep_t step){
239 // Process the track, fill the containers
241 AliDebug(1, Form("QA started for TRD PID for step %d", (Int_t)step));
242 Int_t species = track->GetAbInitioPID();
243 if(species >= AliPID::kSPECIES) species = -1;
244 AliHFEpidObject::AnalysisType_t anatype = track->IsESDanalysis() ? AliHFEpidObject::kESDanalysis : AliHFEpidObject::kAODanalysis;
246 AliHFEpidTRD *trdpid = dynamic_cast<AliHFEpidTRD *>(fQAmanager->GetDetectorPID(AliHFEpid::kTRDpid));
247 const AliPIDResponse *pidResponse = trdpid ? trdpid->GetPIDResponse() : NULL;
249 Double_t container[5];
250 container[0] = species;
251 container[1] = trdpid ? trdpid->GetP(track->GetRecTrack(), anatype) : 0.;
252 container[2] = pidResponse ? pidResponse->NumberOfSigmasTPC(track->GetRecTrack(), AliPID::kElectron) : 0.;
254 container[4] = track->GetCentrality();
255 fHistos->Fill("hTPCsigma", container);
257 container[2] = trdpid ? trdpid->GetElectronLikelihood(static_cast<const AliVTrack*>(track->GetRecTrack()), anatype) : 0;
258 fHistos->Fill("hTRDlikelihood", container);
260 if(track->IsESDanalysis()){
261 const AliESDtrack *esdtrack = dynamic_cast<const AliESDtrack *>(track->GetRecTrack());
263 container[2] = trdpid ? trdpid->GetTRDSignalV1(esdtrack) : 0;
264 fHistos->Fill("hTRDtruncatedMean", container);
267 for(UInt_t ily = 0; ily < 6; ily++){
268 container[2] = trdpid ? trdpid->GetChargeLayer(track->GetRecTrack(), ily, anatype) : 0;
269 if(container[2] < 1e-3) continue; // Filter out 0 entries
270 fHistos->Fill("hTRDcharge", container);
274 //_________________________________________________________
275 TH2 *AliHFEtrdPIDqaV1::MakeTPCspectrumNsigma(AliHFEdetPIDqa::EStep_t step, Int_t species, Int_t centralityClass){
277 // Get the TPC control histogram for the TRD selection step (either before or after PID)
279 THnSparseF *histo = dynamic_cast<THnSparseF *>(fHistos->Get("hTPCsigma"));
281 AliError("QA histogram monitoring TPC nSigma not available");
284 if(species > -1 && species < AliPID::kSPECIES){
285 // cut on species (if available)
286 histo->GetAxis(0)->SetRange(species + 2, species + 2); // undef + underflow
288 TString centname, centtitle;
289 Bool_t hasCentralityInfo = kTRUE;
290 if(centralityClass > -1){
291 if(histo->GetNdimensions() < 5){
292 AliError("Centrality Information not available");
293 centname = centtitle = "MinBias";
294 hasCentralityInfo = kFALSE;
296 // Project centrality classes
298 histo->GetAxis(4)->SetRange(centralityClass+1, centralityClass+1);
299 centname = Form("Cent%d", centralityClass);
300 centtitle = Form("Centrality %d", centralityClass);
303 histo->GetAxis(4)->SetRange(1, histo->GetAxis(4)->GetNbins()-1);
304 centname = centtitle = "MinBias";
305 hasCentralityInfo = kTRUE;
307 histo->GetAxis(3)->SetRange(step + 1, step + 1);
309 TH2 *hSpec = histo->Projection(2, 1);
310 // construct title and name
311 TString stepname = step == AliHFEdetPIDqa::kBeforePID ? "before" : "after";
312 TString speciesname = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "all Particles";
313 TString specID = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "unid";
314 TString histname = Form("hSigmaTPC%s%s%s", specID.Data(), stepname.Data(), centname.Data());
315 TString histtitle = Form("TPC Sigma for %s %s PID %s", speciesname.Data(), stepname.Data(), centtitle.Data());
316 hSpec->SetName(histname.Data());
317 hSpec->SetTitle(histtitle.Data());
319 // Unset range on the original histogram
320 histo->GetAxis(0)->SetRange(0, histo->GetAxis(0)->GetNbins());
321 histo->GetAxis(3)->SetRange(0, histo->GetAxis(3)->GetNbins());
322 if(hasCentralityInfo)histo->GetAxis(4)->SetRange(0, histo->GetAxis(4)->GetNbins());
326 //_________________________________________________________
327 TH2 *AliHFEtrdPIDqaV1::MakeTRDspectrumTM(AliHFEdetPIDqa::EStep_t step, Int_t species, Int_t centralityClass){
329 // Get the TPC control histogram for the TRD selection step (either before or after PID)
331 THnSparseF *histo = dynamic_cast<THnSparseF *>(fHistos->Get("hTRDtruncatedMean"));
333 AliError("QA histogram monitoring TPC nSigma not available");
336 if(species > -1 && species < AliPID::kSPECIES){
337 // cut on species (if available)
338 histo->GetAxis(0)->SetRange(species + 2, species + 2); // undef + underflow
340 TString centname, centtitle;
341 Bool_t hasCentralityInfo = kTRUE;
342 if(centralityClass > -1){
343 if(histo->GetNdimensions() < 5){
344 AliError("Centrality Information not available");
345 centname = centtitle = "MinBias";
346 hasCentralityInfo= kFALSE;
348 // Project centrality classes
350 histo->GetAxis(4)->SetRange(centralityClass+1, centralityClass+1);
351 centname = Form("Cent%d", centralityClass);
352 centtitle = Form("Centrality %d", centralityClass);
355 histo->GetAxis(4)->SetRange(1, histo->GetAxis(4)->GetNbins()-1);
356 centname = centtitle = "MinBias";
357 hasCentralityInfo= kFALSE;
359 histo->GetAxis(3)->SetRange(step + 1, step + 1);
361 TH2 *hSpec = histo->Projection(2, 1);
362 // construct title and name
363 TString stepname = step == AliHFEdetPIDqa::kBeforePID ? "before" : "after";
364 TString speciesname = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "all Particles";
365 TString specID = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "unid";
366 TString histname = Form("hTMTRD%s%s%s", specID.Data(), stepname.Data(), centname.Data());
367 TString histtitle = Form("TRD Truncated Mean for %s %s PID %s", speciesname.Data(), stepname.Data(), centtitle.Data());
368 hSpec->SetName(histname.Data());
369 hSpec->SetTitle(histtitle.Data());
371 // Unset range on the original histogram
372 histo->GetAxis(0)->SetRange(0, histo->GetAxis(0)->GetNbins());
373 histo->GetAxis(2)->SetRange(0, histo->GetAxis(2)->GetNbins());
374 if(hasCentralityInfo)histo->GetAxis(4)->SetRange(0, histo->GetAxis(4)->GetNbins());
378 //_________________________________________________________
379 TH2 *AliHFEtrdPIDqaV1::MakeTRDlikelihoodDistribution(AliHFEdetPIDqa::EStep_t step, Int_t species, Int_t centralityClass){
381 // Make Histogram for TRD Likelihood distribution
383 THnSparseF *histo = dynamic_cast<THnSparseF *>(fHistos->Get("hTRDlikelihood"));
385 AliError("QA histogram monitoring TRD Electron Likelihood not available");
388 if(species > -1 && species < AliPID::kSPECIES){
389 // cut on species (if available)
390 histo->GetAxis(0)->SetRange(species + 2, species + 2); // undef + underflow
392 TString centname, centtitle;
393 Bool_t hasCentralityInfo = kTRUE;
394 if(centralityClass > -1){
395 if(histo->GetNdimensions() < 5){
396 AliError("Centrality Information not available");
397 centname = centtitle = "MinBias";
398 hasCentralityInfo= kFALSE;
400 // Project centrality classes
402 histo->GetAxis(4)->SetRange(centralityClass+1, centralityClass+1);
403 centname = Form("Cent%d", centralityClass);
404 centtitle = Form("Centrality %d", centralityClass);
407 histo->GetAxis(4)->SetRange(1, histo->GetAxis(4)->GetNbins()-1);
408 centname = centtitle = "MinBias";
409 hasCentralityInfo= kTRUE;
411 histo->GetAxis(3)->SetRange(step + 1, step + 1);
413 TH2 *hSpec = histo->Projection(2, 1);
414 // construct title and name
415 TString stepname = step == AliHFEdetPIDqa::kBeforePID ? "before" : "after";
416 TString speciesname = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "all Particles";
417 TString specID = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "unid";
418 TString histname = Form("hLikeElTRD%s%s%s", specID.Data(), stepname.Data(),centname.Data());
419 TString histtitle = Form("TRD electron Likelihood for %s %s PID %s", speciesname.Data(), stepname.Data(),centtitle.Data());
420 hSpec->SetName(histname.Data());
421 hSpec->SetTitle(histtitle.Data());
423 // Unset range on the original histogram
424 histo->GetAxis(0)->SetRange(0, histo->GetAxis(0)->GetNbins());
425 histo->GetAxis(2)->SetRange(0, histo->GetAxis(2)->GetNbins());
426 if(hasCentralityInfo)histo->GetAxis(4)->SetRange(0, histo->GetAxis(4)->GetNbins());
430 //_________________________________________________________
431 TH2 *AliHFEtrdPIDqaV1::MakeTRDchargeDistribution(AliHFEdetPIDqa::EStep_t step, Int_t species, Int_t centralityClass){
433 // Make Histogram for TRD Likelihood distribution
435 THnSparseF *histo = dynamic_cast<THnSparseF *>(fHistos->Get("hTRDcharge"));
437 AliError("QA histogram monitoring TRD total charge not available");
440 if(species > -1 && species < AliPID::kSPECIES){
441 // cut on species (if available)
442 histo->GetAxis(0)->SetRange(species + 2, species + 2); // undef + underflow
444 TString centname, centtitle;
445 Bool_t hasCentralityInfo = kTRUE;
446 if(centralityClass > -1){
447 if(histo->GetNdimensions() < 5){
448 AliError("Centrality Information not available");
449 centname = centtitle = "MinBias";
450 hasCentralityInfo= kFALSE;
452 // Project centrality classes
454 histo->GetAxis(4)->SetRange(centralityClass+1, centralityClass+1);
455 centname = Form("Cent%d", centralityClass);
456 centtitle = Form("Centrality %d", centralityClass);
459 histo->GetAxis(4)->SetRange(1, histo->GetAxis(4)->GetNbins()-1);
460 centname = centtitle = "MinBias";
461 hasCentralityInfo= kTRUE;
463 histo->GetAxis(3)->SetRange(step + 1, step + 1);
465 TH2 *hSpec = histo->Projection(2, 1);
466 // construct title and name
467 TString stepname = step == AliHFEdetPIDqa::kBeforePID ? "before" : "after";
468 TString speciesname = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "all Particles";
469 TString specID = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "unid";
470 TString histname = Form("hChargeTRD%s%s%s", specID.Data(), stepname.Data(), centname.Data());
471 TString histtitle = Form("TRD total charge for %s %s PID %s", speciesname.Data(), stepname.Data(), centtitle.Data());
472 hSpec->SetName(histname.Data());
473 hSpec->SetTitle(histtitle.Data());
475 // Unset range on the original histogram
476 histo->GetAxis(0)->SetRange(0, histo->GetAxis(0)->GetNbins());
477 histo->GetAxis(2)->SetRange(0, histo->GetAxis(2)->GetNbins());
478 if(hasCentralityInfo)histo->GetAxis(4)->SetRange(0, histo->GetAxis(4)->GetNbins());