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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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 **************************************************************************/
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 AliHFEdetPIDqa::operator=(o);
92 //_________________________________________________________
93 Long64_t AliHFEtrdPIDqaV1::Merge(TCollection *coll){
95 // Merge with other objects
98 if(coll->IsEmpty()) return 1;
101 AliHFEtrdPIDqaV1 *refQA = NULL;
106 refQA = dynamic_cast<AliHFEtrdPIDqaV1 *>(o);
109 listHistos.Add(refQA->fHistos);
112 fHistos->Merge(&listHistos);
116 //_________________________________________________________
117 void AliHFEtrdPIDqaV1::Browse(TBrowser *b){
123 b->Add(fHistos, fHistos->GetName());
125 // Make Projections of the dE/dx Spectra and add them to a new Folder
126 TString specnames[4] = {"All", "Electrons", "Pions", "Protons"};
127 Int_t specind[4] = {-1, AliPID::kElectron, AliPID::kPion, AliPID::kProton};
128 TList *listTM = new TList;
130 TList *listLike = new TList;
131 listLike->SetOwner();
132 TList *listCharge = new TList;
133 listCharge->SetOwner();
134 TList *listTPCnsigma = new TList;
135 listTPCnsigma->SetOwner();
138 TList *lctm, *lclike, *lccharge, *lcTPCsig;
139 for(Int_t icent = -1; icent < 11; icent++){
141 lctm->SetName(icent < 0 ? "MinBias" : Form("Centrality%d", icent));
145 lclike->SetName(icent < 0 ? "MinBias" : Form("Centrality%d", icent));
147 listLike->Add(lclike);
148 lccharge = new TList;
149 lccharge->SetName(icent < 0 ? "MinBias" : Form("Centrality%d", icent));
150 lccharge->SetOwner();
151 listCharge->Add(lccharge);
152 lcTPCsig = new TList;
153 lcTPCsig->SetName(icent < 0 ? "MinBias" : Form("Centrality%d", icent));
154 lcTPCsig->SetOwner();
155 listTPCnsigma->Add(lcTPCsig);
156 for(Int_t ispec = 0; ispec < 4; ispec++){
157 for(Int_t istep = 0; istep < 2; istep++){
158 hptr = MakeTRDspectrumTM(static_cast<AliHFEdetPIDqa::EStep_t>(istep), specind[ispec], icent);
160 hptr->SetName(Form("hTRDtm%s%s", specnames[ispec].Data(), istep == 0 ? "Before" : "After"));
163 hptr = MakeTRDlikelihoodDistribution(static_cast<AliHFEdetPIDqa::EStep_t>(istep), specind[ispec], icent);
164 hptr->SetName(Form("hTRDlike%s%s", specnames[ispec].Data(), istep == 0 ? "Before" : "After"));
166 hptr = MakeTRDchargeDistribution(static_cast<AliHFEdetPIDqa::EStep_t>(istep), specind[ispec], icent);
167 hptr->SetName(Form("hTRDcharge%s%s", specnames[ispec].Data(), istep == 0 ? "Before" : "After"));
169 hptr = MakeTPCspectrumNsigma(static_cast<AliHFEdetPIDqa::EStep_t>(istep), specind[ispec], icent);
170 hptr->SetName(Form("hTPCspectrum%s%s", specnames[ispec].Data(), istep == 0 ? "Before" : "After"));
176 b->Add(listTM, "Projections Truncated Mean");
177 b->Add(listLike, "Projections Likelihood distribution");
178 b->Add(listCharge, "Projections Tracklet Charge");
179 b->Add(listTPCnsigma, "Projections TPC spectra");
184 //____________________________________________________________
185 void AliHFEtrdPIDqaV1::Initialize(){
187 // Initialize QA histos for TRD PID
190 AliDebug(1, "Initializing PID QA for TRD");
191 // Make common binning
192 const Int_t kPIDbins = AliPID::kSPECIES + 1;
193 const Int_t kSteps = 2;
194 const Double_t kMinPID = -1;
195 const Double_t kMinP = 0.;
196 const Double_t kMaxPID = (Double_t)AliPID::kSPECIES;
197 const Double_t kMaxP = 20.;
198 const Int_t kCentralityBins = 11;
200 // Define number of bins
201 Int_t kPbins = fQAmanager->HasHighResolutionHistos() ? 1000 : 100;
202 Int_t tpcSigmaBins = fQAmanager->HasHighResolutionHistos() ? 1400 : 140;
203 Int_t trdLikelihoodBins = fQAmanager->HasHighResolutionHistos() ? 200 : 100;
205 fHistos = new AliHFEcollection("trdqahistos", "Collection of TRD QA histograms");
207 // Create Control Histogram monitoring the TPC sigma between the selection steps
208 Int_t nBinsTPCSigma[5] = {kPIDbins, kPbins, tpcSigmaBins, kSteps, kCentralityBins};
209 Double_t minTPCSigma[5] = {kMinPID, kMinP, -12., 0., 0.};
210 Double_t maxTPCSigma[5] = {kMaxPID, kMaxP, 12., 2., 11.};
211 fHistos->CreateTHnSparse("hTPCsigma", "TPC sigma; species p [GeV/c]; TPC dEdx - <dE/dx>|_{el} [#sigma]; selection step", 5, nBinsTPCSigma, minTPCSigma, maxTPCSigma);
212 fHistos->Sumw2("hTPCsigma");
213 // Create Monitoring histogram for the Likelihood distribution
214 Int_t nBinsTRDlike[5] = {kPIDbins, kPbins, trdLikelihoodBins, kSteps, kCentralityBins};
215 Double_t minTRDlike[5] = {kMinPID, kMinP, 0., 0., 0.};
216 Double_t maxTRDlike[5] = {kMaxPID, kMaxP, 1., 2., 11.};
217 fHistos->CreateTHnSparse("hTRDlikelihood", "TRD Likelihood Distribution; species; p [GeV/c]; TRD electron Likelihood; selection step", 5, nBinsTRDlike, minTRDlike, maxTRDlike);
218 fHistos->Sumw2("hTRDlikelihood");
219 // Create Monitoring histogram for the TRD total charge
220 const Int_t kTRDchargeBins = 1000;
221 Int_t nBinsTRDcharge[5] = {kPIDbins, kPbins, kTRDchargeBins, kSteps, kCentralityBins};
222 Double_t minTRDcharge[5] = {kMinPID, kMinP, 0., 0., 0.};
223 Double_t maxTRDcharge[5] = {kMaxPID, kMaxP, 100000., 2., 11.};
224 fHistos->CreateTHnSparse("hTRDcharge", "Total TRD charge; species; p [GeV/c]; TRD charge [a.u.]; selection step", 5, nBinsTRDcharge, minTRDcharge, maxTRDcharge);
225 fHistos->Sumw2("hTRDcharge");
226 // Monitoring of the TRD truncated mean according to version 1
227 const Int_t kTRDtmBins = 1000;
228 Int_t nBinsTRDtm[5] = {kPIDbins, kPbins, kTRDtmBins, kSteps, kCentralityBins};
229 Double_t minTRDtm[5] = {kMinPID, kMinP, 0., 0., 0.};
230 Double_t maxTRDtm[5] = {kMaxPID, kMaxP, 20000., 2., 11.};
231 fHistos->CreateTHnSparse("hTRDtruncatedMean", "TRD truncated Mean; species; p [GeV/c]; TRD signal [a.u.]; selection step", 5, nBinsTRDtm, minTRDtm, maxTRDtm);
232 fHistos->Sumw2("hTRDtruncatedMean");
235 //____________________________________________________________
236 void AliHFEtrdPIDqaV1::ProcessTrack(const AliHFEpidObject *track, AliHFEdetPIDqa::EStep_t step){
238 // Process the track, fill the containers
240 AliDebug(1, Form("QA started for TRD PID for step %d", (Int_t)step));
241 Int_t species = track->GetAbInitioPID();
242 if(species >= AliPID::kSPECIES) species = -1;
243 AliHFEpidObject::AnalysisType_t anatype = track->IsESDanalysis() ? AliHFEpidObject::kESDanalysis : AliHFEpidObject::kAODanalysis;
245 AliHFEpidTRD *trdpid = dynamic_cast<AliHFEpidTRD *>(fQAmanager->GetDetectorPID(AliHFEpid::kTRDpid));
246 const AliPIDResponse *pidResponse = trdpid ? trdpid->GetPIDResponse() : NULL;
248 Double_t container[5];
249 container[0] = species;
250 container[1] = trdpid ? trdpid->GetP(track->GetRecTrack(), anatype) : 0.;
251 container[2] = pidResponse ? pidResponse->NumberOfSigmasTPC(track->GetRecTrack(), AliPID::kElectron) : 0.;
253 container[4] = track->GetCentrality();
254 fHistos->Fill("hTPCsigma", container);
256 container[2] = trdpid ? trdpid->GetElectronLikelihood(static_cast<const AliVTrack*>(track->GetRecTrack()), anatype) : 0;
257 fHistos->Fill("hTRDlikelihood", container);
259 if(track->IsESDanalysis()){
260 const AliESDtrack *esdtrack = dynamic_cast<const AliESDtrack *>(track->GetRecTrack());
262 container[2] = trdpid ? trdpid->GetTRDSignalV1(esdtrack) : 0;
263 fHistos->Fill("hTRDtruncatedMean", container);
266 for(UInt_t ily = 0; ily < 6; ily++){
267 container[2] = trdpid ? trdpid->GetChargeLayer(track->GetRecTrack(), ily, anatype) : 0;
268 if(container[2] < 1e-3) continue; // Filter out 0 entries
269 fHistos->Fill("hTRDcharge", container);
273 //_________________________________________________________
274 TH2 *AliHFEtrdPIDqaV1::MakeTPCspectrumNsigma(AliHFEdetPIDqa::EStep_t step, Int_t species, Int_t centralityClass){
276 // Get the TPC control histogram for the TRD selection step (either before or after PID)
278 THnSparseF *histo = dynamic_cast<THnSparseF *>(fHistos->Get("hTPCsigma"));
280 AliError("QA histogram monitoring TPC nSigma not available");
283 if(species > -1 && species < AliPID::kSPECIES){
284 // cut on species (if available)
285 histo->GetAxis(0)->SetRange(species + 2, species + 2); // undef + underflow
287 TString centname, centtitle;
288 Bool_t hasCentralityInfo = kTRUE;
289 if(centralityClass > -1){
290 if(histo->GetNdimensions() < 5){
291 AliError("Centrality Information not available");
292 centname = centtitle = "MinBias";
293 hasCentralityInfo = kFALSE;
295 // Project centrality classes
297 histo->GetAxis(4)->SetRange(centralityClass+1, centralityClass+1);
298 centname = Form("Cent%d", centralityClass);
299 centtitle = Form("Centrality %d", centralityClass);
302 histo->GetAxis(4)->SetRange(1, histo->GetAxis(4)->GetNbins()-1);
303 centname = centtitle = "MinBias";
304 hasCentralityInfo = kTRUE;
306 histo->GetAxis(3)->SetRange(step + 1, step + 1);
308 TH2 *hSpec = histo->Projection(2, 1);
309 // construct title and name
310 TString stepname = step == AliHFEdetPIDqa::kBeforePID ? "before" : "after";
311 TString speciesname = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "all Particles";
312 TString specID = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "unid";
313 TString histname = Form("hSigmaTPC%s%s%s", specID.Data(), stepname.Data(), centname.Data());
314 TString histtitle = Form("TPC Sigma for %s %s PID %s", speciesname.Data(), stepname.Data(), centtitle.Data());
315 hSpec->SetName(histname.Data());
316 hSpec->SetTitle(histtitle.Data());
318 // Unset range on the original histogram
319 histo->GetAxis(0)->SetRange(0, histo->GetAxis(0)->GetNbins());
320 histo->GetAxis(3)->SetRange(0, histo->GetAxis(3)->GetNbins());
321 if(hasCentralityInfo)histo->GetAxis(4)->SetRange(0, histo->GetAxis(4)->GetNbins());
325 //_________________________________________________________
326 TH2 *AliHFEtrdPIDqaV1::MakeTRDspectrumTM(AliHFEdetPIDqa::EStep_t step, Int_t species, Int_t centralityClass){
328 // Get the TPC control histogram for the TRD selection step (either before or after PID)
330 THnSparseF *histo = dynamic_cast<THnSparseF *>(fHistos->Get("hTRDtruncatedMean"));
332 AliError("QA histogram monitoring TPC nSigma not available");
335 if(species > -1 && species < AliPID::kSPECIES){
336 // cut on species (if available)
337 histo->GetAxis(0)->SetRange(species + 2, species + 2); // undef + underflow
339 TString centname, centtitle;
340 Bool_t hasCentralityInfo = kTRUE;
341 if(centralityClass > -1){
342 if(histo->GetNdimensions() < 5){
343 AliError("Centrality Information not available");
344 centname = centtitle = "MinBias";
345 hasCentralityInfo= kFALSE;
347 // Project centrality classes
349 histo->GetAxis(4)->SetRange(centralityClass+1, centralityClass+1);
350 centname = Form("Cent%d", centralityClass);
351 centtitle = Form("Centrality %d", centralityClass);
354 histo->GetAxis(4)->SetRange(1, histo->GetAxis(4)->GetNbins()-1);
355 centname = centtitle = "MinBias";
356 hasCentralityInfo= kFALSE;
358 histo->GetAxis(3)->SetRange(step + 1, step + 1);
360 TH2 *hSpec = histo->Projection(2, 1);
361 // construct title and name
362 TString stepname = step == AliHFEdetPIDqa::kBeforePID ? "before" : "after";
363 TString speciesname = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "all Particles";
364 TString specID = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "unid";
365 TString histname = Form("hTMTRD%s%s%s", specID.Data(), stepname.Data(), centname.Data());
366 TString histtitle = Form("TRD Truncated Mean for %s %s PID %s", speciesname.Data(), stepname.Data(), centtitle.Data());
367 hSpec->SetName(histname.Data());
368 hSpec->SetTitle(histtitle.Data());
370 // Unset range on the original histogram
371 histo->GetAxis(0)->SetRange(0, histo->GetAxis(0)->GetNbins());
372 histo->GetAxis(2)->SetRange(0, histo->GetAxis(2)->GetNbins());
373 if(hasCentralityInfo)histo->GetAxis(4)->SetRange(0, histo->GetAxis(4)->GetNbins());
377 //_________________________________________________________
378 TH2 *AliHFEtrdPIDqaV1::MakeTRDlikelihoodDistribution(AliHFEdetPIDqa::EStep_t step, Int_t species, Int_t centralityClass){
380 // Make Histogram for TRD Likelihood distribution
382 THnSparseF *histo = dynamic_cast<THnSparseF *>(fHistos->Get("hTRDlikelihood"));
384 AliError("QA histogram monitoring TRD Electron Likelihood not available");
387 if(species > -1 && species < AliPID::kSPECIES){
388 // cut on species (if available)
389 histo->GetAxis(0)->SetRange(species + 2, species + 2); // undef + underflow
391 TString centname, centtitle;
392 Bool_t hasCentralityInfo = kTRUE;
393 if(centralityClass > -1){
394 if(histo->GetNdimensions() < 5){
395 AliError("Centrality Information not available");
396 centname = centtitle = "MinBias";
397 hasCentralityInfo= kFALSE;
399 // Project centrality classes
401 histo->GetAxis(4)->SetRange(centralityClass+1, centralityClass+1);
402 centname = Form("Cent%d", centralityClass);
403 centtitle = Form("Centrality %d", centralityClass);
406 histo->GetAxis(4)->SetRange(1, histo->GetAxis(4)->GetNbins()-1);
407 centname = centtitle = "MinBias";
408 hasCentralityInfo= kTRUE;
410 histo->GetAxis(3)->SetRange(step + 1, step + 1);
412 TH2 *hSpec = histo->Projection(2, 1);
413 // construct title and name
414 TString stepname = step == AliHFEdetPIDqa::kBeforePID ? "before" : "after";
415 TString speciesname = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "all Particles";
416 TString specID = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "unid";
417 TString histname = Form("hLikeElTRD%s%s%s", specID.Data(), stepname.Data(),centname.Data());
418 TString histtitle = Form("TRD electron Likelihood for %s %s PID %s", speciesname.Data(), stepname.Data(),centtitle.Data());
419 hSpec->SetName(histname.Data());
420 hSpec->SetTitle(histtitle.Data());
422 // Unset range on the original histogram
423 histo->GetAxis(0)->SetRange(0, histo->GetAxis(0)->GetNbins());
424 histo->GetAxis(2)->SetRange(0, histo->GetAxis(2)->GetNbins());
425 if(hasCentralityInfo)histo->GetAxis(4)->SetRange(0, histo->GetAxis(4)->GetNbins());
429 //_________________________________________________________
430 TH2 *AliHFEtrdPIDqaV1::MakeTRDchargeDistribution(AliHFEdetPIDqa::EStep_t step, Int_t species, Int_t centralityClass){
432 // Make Histogram for TRD Likelihood distribution
434 THnSparseF *histo = dynamic_cast<THnSparseF *>(fHistos->Get("hTRDcharge"));
436 AliError("QA histogram monitoring TRD total charge not available");
439 if(species > -1 && species < AliPID::kSPECIES){
440 // cut on species (if available)
441 histo->GetAxis(0)->SetRange(species + 2, species + 2); // undef + underflow
443 TString centname, centtitle;
444 Bool_t hasCentralityInfo = kTRUE;
445 if(centralityClass > -1){
446 if(histo->GetNdimensions() < 5){
447 AliError("Centrality Information not available");
448 centname = centtitle = "MinBias";
449 hasCentralityInfo= kFALSE;
451 // Project centrality classes
453 histo->GetAxis(4)->SetRange(centralityClass+1, centralityClass+1);
454 centname = Form("Cent%d", centralityClass);
455 centtitle = Form("Centrality %d", centralityClass);
458 histo->GetAxis(4)->SetRange(1, histo->GetAxis(4)->GetNbins()-1);
459 centname = centtitle = "MinBias";
460 hasCentralityInfo= kTRUE;
462 histo->GetAxis(3)->SetRange(step + 1, step + 1);
464 TH2 *hSpec = histo->Projection(2, 1);
465 // construct title and name
466 TString stepname = step == AliHFEdetPIDqa::kBeforePID ? "before" : "after";
467 TString speciesname = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "all Particles";
468 TString specID = species > -1 && species < AliPID::kSPECIES ? AliPID::ParticleName(species) : "unid";
469 TString histname = Form("hChargeTRD%s%s%s", specID.Data(), stepname.Data(), centname.Data());
470 TString histtitle = Form("TRD total charge for %s %s PID %s", speciesname.Data(), stepname.Data(), centtitle.Data());
471 hSpec->SetName(histname.Data());
472 hSpec->SetTitle(histtitle.Data());
474 // Unset range on the original histogram
475 histo->GetAxis(0)->SetRange(0, histo->GetAxis(0)->GetNbins());
476 histo->GetAxis(2)->SetRange(0, histo->GetAxis(2)->GetNbins());
477 if(hasCentralityInfo)histo->GetAxis(4)->SetRange(0, histo->GetAxis(4)->GetNbins());