3 #include <TCollection.h>
4 #include <TDirectory.h>
13 #include "AliESDtrack.h"
14 #include "AliESDEvent.h"
16 #include "AliESDpid.h"
18 #include "AliESDpidCuts.h"
20 ClassImp(AliESDpidCuts)
22 const Int_t AliESDpidCuts::kNcuts = 3;
24 //_____________________________________________________________________
25 AliESDpidCuts::AliESDpidCuts(const Char_t *name, const Char_t *title):
26 AliAnalysisCuts(name, title)
28 , fTPCsigmaCutRequired(0)
29 , fTOFsigmaCutRequired(0)
30 , fCutTPCclusterRatio(0.)
31 , fMinMomentumTOF(0.5)
32 , fHcutStatistics(NULL)
33 , fHcutCorrelation(NULL)
36 // Default constructor
39 fESDpid = new AliESDpid;
40 memset(fCutTPCnSigma, 0, sizeof(Float_t) * 2);
41 memset(fCutTOFnSigma, 0, sizeof(Float_t) * 2);
43 memset(fHclusterRatio, 0, sizeof(TH1F *) * 2);
44 memset(fHnSigmaTPC, 0, sizeof(TH1F *) * AliPID::kSPECIES * 2);
45 memset(fHnSigmaTOF, 0, sizeof(TH1F *) * AliPID::kSPECIES * 2);
48 //_____________________________________________________________________
49 AliESDpidCuts::AliESDpidCuts(const AliESDpidCuts &ref):
52 , fTPCsigmaCutRequired(ref.fTPCsigmaCutRequired)
53 , fTOFsigmaCutRequired(ref.fTOFsigmaCutRequired)
54 , fCutTPCclusterRatio(ref.fCutTPCclusterRatio)
55 , fMinMomentumTOF(ref.fMinMomentumTOF)
56 , fHcutStatistics(NULL)
57 , fHcutCorrelation(NULL)
62 fESDpid = new AliESDpid(*ref.fESDpid);
63 memcpy(fCutTPCnSigma, ref.fCutTPCnSigma, sizeof(Float_t) * AliPID::kSPECIES * 2);
64 memcpy(fCutTOFnSigma, ref.fCutTOFnSigma, sizeof(Float_t) * AliPID::kSPECIES * 2);
66 if(ref.fHcutStatistics) fHcutStatistics = dynamic_cast<TH1I *>(ref.fHcutStatistics->Clone());
67 if(ref.fHcutCorrelation) fHcutCorrelation = dynamic_cast<TH2I *>(ref.fHcutCorrelation->Clone());
68 for(Int_t imode = 0; imode < 2; imode++){
69 if(ref.fHclusterRatio[imode]) fHclusterRatio[imode] = dynamic_cast<TH1F *>(ref.fHclusterRatio[imode]->Clone());
70 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
71 if(fHnSigmaTPC[ispec][imode]) fHnSigmaTPC[ispec][imode] = dynamic_cast<TH1F *>(fHnSigmaTPC[ispec][imode]->Clone());
72 if(fHnSigmaTOF[ispec][imode]) fHnSigmaTOF[ispec][imode] = dynamic_cast<TH1F *>(fHnSigmaTPC[ispec][imode]->Clone());
77 //_____________________________________________________________________
78 AliESDpidCuts &AliESDpidCuts::operator=(const AliESDpidCuts &ref){
80 // Assignment operator
87 //_____________________________________________________________________
88 AliESDpidCuts::~AliESDpidCuts(){
94 delete fHcutStatistics;
95 delete fHcutCorrelation;
96 for(Int_t imode = 0; imode < 2; imode++){
97 delete fHclusterRatio[imode];
98 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
99 delete fHnSigmaTPC[ispec][imode];
100 delete fHnSigmaTOF[ispec][imode];
105 //_____________________________________________________________________
106 Bool_t AliESDpidCuts::IsSelected(TObject *obj){
110 AliESDtrack * trk = dynamic_cast<AliESDtrack*>(obj);
112 AliError("Provided object is not AliESDtrack!");
115 AliESDEvent* evt = trk->GetESDEvent();
117 AliError("No AliESDEvent!");
120 return AcceptTrack(trk, evt);
123 //_____________________________________________________________________
124 void AliESDpidCuts::Copy(TObject &c) const {
128 AliESDpidCuts &target = dynamic_cast<AliESDpidCuts &>(c);
130 target.fESDpid = new AliESDpid(*fESDpid);
132 target.fCutTPCclusterRatio = fCutTPCclusterRatio;
133 target.fMinMomentumTOF = fMinMomentumTOF;
135 target.fTPCsigmaCutRequired = fTPCsigmaCutRequired;
136 target.fTOFsigmaCutRequired = fTOFsigmaCutRequired;
138 if(fHcutStatistics) target.fHcutStatistics = dynamic_cast<TH1I *>(fHcutStatistics->Clone());
139 if(fHcutCorrelation) target.fHcutCorrelation = dynamic_cast<TH2I *>(fHcutCorrelation->Clone());
140 for(Int_t imode = 0; imode < 2; imode++){
141 if(fHclusterRatio[imode]) target.fHclusterRatio[imode] = dynamic_cast<TH1F *>(fHclusterRatio[imode]->Clone());
142 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
143 if(fHnSigmaTPC[ispec][imode]) target.fHnSigmaTPC[ispec][imode] = dynamic_cast<TH1F *>(fHnSigmaTPC[ispec][imode]->Clone());
144 if(fHnSigmaTOF[ispec][imode]) target.fHnSigmaTOF[ispec][imode] = dynamic_cast<TH1F *>(fHnSigmaTOF[ispec][imode]->Clone());
148 memcpy(target.fCutTPCnSigma, fCutTPCnSigma, sizeof(Float_t) * AliPID::kSPECIES * 2);
149 memcpy(target.fCutTOFnSigma, fCutTOFnSigma, sizeof(Float_t) * AliPID::kSPECIES);
151 AliESDpidCuts::Copy(c);
154 //_____________________________________________________________________
155 Long64_t AliESDpidCuts::Merge(TCollection *coll){
160 if(coll->IsEmpty()) return 1;
161 if(!HasHistograms()) return 0;
163 TIterator *iter = coll->MakeIterator();
165 AliESDpidCuts *ref = NULL;
167 while((o = iter->Next())){
168 ref = dynamic_cast<AliESDpidCuts *>(o);
170 if(!ref->HasHistograms()) continue;
172 fHcutStatistics->Add(ref->fHcutStatistics);
173 fHcutCorrelation->Add(ref->fHcutCorrelation);
174 for(Int_t imode = 0; imode < 2; imode++){
175 fHclusterRatio[imode]->Add(ref->fHclusterRatio[imode]);
176 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
177 fHnSigmaTPC[ispec][imode]->Add(ref->fHnSigmaTPC[ispec][imode]);
178 fHnSigmaTOF[ispec][imode]->Add(ref->fHnSigmaTOF[ispec][imode]);
186 //_____________________________________________________________________
187 void AliESDpidCuts::DefineHistograms(Color_t color){
189 // Swich on QA and create the histograms
191 SetBit(kHasHistograms, kTRUE);
192 fHcutStatistics = new TH1I("fHcutStatistics", "Cut Statistics", kNcuts, 0, kNcuts);
193 fHcutStatistics->SetLineColor(color);
194 fHcutCorrelation = new TH2I("fHcutCorrelation", "Cut Correlation", kNcuts, 0, kNcuts, kNcuts, 0, kNcuts);
195 TString cutname[kNcuts] = {"TPCclusterRatio", "TPC sigma", "TOF sigma"};
196 for(Int_t icut = 0; icut < kNcuts; icut++){
197 fHcutStatistics->GetXaxis()->SetBinLabel(fHcutStatistics->GetXaxis()->GetFirst() + icut, cutname[icut].Data());
198 fHcutCorrelation->GetXaxis()->SetBinLabel(fHcutCorrelation->GetXaxis()->GetFirst() + icut, cutname[icut].Data());
199 fHcutCorrelation->GetYaxis()->SetBinLabel(fHcutCorrelation->GetYaxis()->GetFirst() + icut, cutname[icut].Data());
201 Char_t hname[256], htitle[256];
202 for(Int_t imode = 0; imode < 2; imode++){
203 sprintf(hname, "fHclusterRatio%s", imode ? "After" : "Before");
204 sprintf(htitle, "TPC cluster Ratio %s cuts;Ratio;Entries", imode ? "after" : "before");
205 fHclusterRatio[imode] = new TH1F(hname, htitle, 20, 0., 1.);
206 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
207 sprintf(hname, "fHnSigma%sTPC%s", AliPID::ParticleName(ispec), imode ? "after" : "before");
208 sprintf(htitle, "TPC sigma for %s %s cuts;sigma;Entries", AliPID::ParticleName(ispec), imode ? "after" : "before");
209 fHnSigmaTPC[ispec][imode] = new TH1F(hname, htitle, 200, -10., 10.);
210 sprintf(hname, "fHnSigma%sTOF%s", AliPID::ParticleName(ispec), imode ? "after" : "before");
211 sprintf(htitle, "TOF sigma for %s %s cuts;sigma;Entries", AliPID::ParticleName(ispec), imode ? "after" : "before");
212 fHnSigmaTOF[ispec][imode] = new TH1F(hname, htitle, 200, -10., 10.);
217 //_____________________________________________________________________
218 Bool_t AliESDpidCuts::AcceptTrack(const AliESDtrack *track, const AliESDEvent *event){
220 // Check whether the tracks survived the cuts
227 Long64_t cutRequired=0, cutFullfiled = 0;
228 if(fTOFsigmaCutRequired && event == 0)
229 AliError("No event pointer. Need event pointer for T0 for TOF cut");
230 Double_t clusterRatio = track->GetTPCNclsF() ? static_cast<Float_t>(track->GetTPCNcls())/static_cast<Float_t>(track->GetTPCNclsF()) : 1.;
231 if(fCutTPCclusterRatio > 0.){
232 SETBIT(cutRequired, kCutClusterRatioTPC);
233 if(clusterRatio >= fCutTPCclusterRatio)
234 SETBIT(cutFullfiled, kCutClusterRatioTPC);
236 // check TPC nSigma cut
237 Float_t nsigmaTPC[AliPID::kSPECIES], nsigma; // need all sigmas for QA plotting
238 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
239 nsigmaTPC[ispec] = nsigma = fESDpid->NumberOfSigmasTPC(track,(AliPID::EParticleType)ispec);
240 if(!(fTPCsigmaCutRequired & 1 << ispec)) continue;
241 SETBIT(cutRequired, kCutNsigmaTPC); // We found at least one species where the n-Sigma Cut is required
242 if(nsigma >= fCutTPCnSigma[2*ispec] && nsigma <= fCutTPCnSigma[2*ispec+1]) SETBIT(cutFullfiled, kCutNsigmaTPC); // Fullfiled for at least one species
244 // check TOF nSigma cut
245 Float_t nsigmaTOF[AliPID::kSPECIES]; // see above
246 Bool_t hasTOFpid = track->GetStatus() & AliESDtrack::kTOFpid; // only apply TOF n-sigma cut when PID Status Bit is set
247 Double_t times[AliPID::kSPECIES];
248 track->GetIntegratedTimes(times);
249 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
251 if(hasTOFpid) nsigmaTOF[ispec] = nsigma = fESDpid->NumberOfSigmasTOF(track,(AliPID::EParticleType)ispec, event->GetT0());
252 if(!(fTOFsigmaCutRequired && 1 << ispec)) continue;
253 SETBIT(cutRequired, kCutNsigmaTOF);
254 if(track->GetOuterParam()->P() >= fMinMomentumTOF){
255 if(hasTOFpid && nsigma <= fCutTOFnSigma[2*ispec] && nsigma >= fCutTOFnSigma[2*ispec+1]) SETBIT(cutFullfiled, kCutNsigmaTOF);
259 // Fill Histograms before cuts
261 fHclusterRatio[0]->Fill(clusterRatio);
262 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
263 fHnSigmaTPC[ispec][0]->Fill(nsigmaTPC[ispec]);
264 if(hasTOFpid) fHnSigmaTOF[ispec][0]->Fill(nsigmaTOF[ispec]);
267 if(cutRequired != cutFullfiled){
268 // Fill cut statistics
270 for(Int_t icut = 0; icut < kNcuts; icut++){
271 if(TESTBIT(cutRequired, icut) && !TESTBIT(cutFullfiled, icut)){
273 fHcutStatistics->Fill(icut);
274 for(Int_t jcut = 0; jcut <= icut; jcut++)
275 if(TESTBIT(cutRequired, jcut) && !TESTBIT(cutFullfiled, jcut)) fHcutCorrelation->Fill(jcut, icut);
279 return kFALSE; // At least one cut is not fullfiled
282 // Fill Histograms after cuts
284 fHclusterRatio[1]->Fill(clusterRatio);
285 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
286 fHnSigmaTPC[ispec][1]->Fill(nsigmaTPC[ispec]);
287 if(hasTOFpid) fHnSigmaTOF[ispec][1]->Fill(nsigmaTOF[ispec]);
294 //_____________________________________________________________________
295 void AliESDpidCuts::SaveHistograms(const Char_t * location){
297 // Save the histograms to a file
299 if(!HasHistograms()){
300 AliError("Histograms not on - Exiting");
303 if(!location) location = GetName();
304 gDirectory->mkdir(location);
305 gDirectory->cd(location);
306 fHcutStatistics->Write();
307 fHcutCorrelation->Write();
309 gDirectory->mkdir("before_cuts");
310 gDirectory->mkdir("after_cuts");
312 gDirectory->cd("before_cuts");
313 fHclusterRatio[0]->Write();
314 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
315 fHnSigmaTPC[ispec][0]->Write();
316 fHnSigmaTOF[ispec][0]->Write();
319 gDirectory->cd("../after_cuts");
320 fHclusterRatio[1]->Write();
321 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
322 fHnSigmaTPC[ispec][1]->Write();
323 fHnSigmaTOF[ispec][1]->Write();
326 gDirectory->cd("..");
329 //_____________________________________________________________________
330 void AliESDpidCuts::DrawHistograms(){
332 // Draw the Histograms
334 TCanvas *stat = new TCanvas("cutStat", "Cut Statistics", 640, 480);
336 fHcutStatistics->SetStats(kFALSE);
337 fHcutStatistics->Draw();
338 stat->SaveAs(Form("%s_%s.gif", GetName(), stat->GetName()));
340 TCanvas *correl = new TCanvas("cutCorrelation", "Cut Correlation", 640, 480);
342 fHcutCorrelation->SetStats(kFALSE);
343 fHcutCorrelation->Draw("colz");
344 correl->SaveAs(Form("%s_%s.gif", GetName(), correl->GetName()));
346 TCanvas *cRatio = new TCanvas("ClusterRatioTPC", "TPC cluster Ratio", 640, 480);
348 fHclusterRatio[0]->SetLineColor(kRed);
349 fHclusterRatio[0]->SetStats(kFALSE);
350 fHclusterRatio[0]->Draw();
351 fHclusterRatio[1]->SetLineColor(kBlue);
352 fHclusterRatio[1]->SetStats(kFALSE);
353 fHclusterRatio[1]->Draw("same");
354 cRatio->SaveAs(Form("%s_%s.gif", GetName(), cRatio->GetName()));
356 TCanvas *cNsigTPC = new TCanvas("NsigmaTPC", "TPC n-sigma", 640, 480);
357 cNsigTPC->Divide(3,2);
358 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
359 cNsigTPC->cd(ispec + 1);
360 fHnSigmaTPC[ispec][0]->SetLineColor(kRed);
361 fHnSigmaTPC[ispec][0]->SetStats(kFALSE);
362 fHnSigmaTPC[ispec][0]->Draw();
363 fHnSigmaTPC[ispec][1]->SetLineColor(kBlue);
364 fHnSigmaTPC[ispec][1]->SetStats(kFALSE);
365 fHnSigmaTPC[ispec][1]->Draw("same");
367 cNsigTPC->SaveAs(Form("%s_%s.gif", GetName(), cNsigTPC->GetName()));
369 TCanvas *cNsigTOF = new TCanvas("NsigmaTOF", "TOF n-sigma", 640, 480);
370 cNsigTOF->Divide(3,2);
371 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
372 cNsigTOF->cd(ispec + 1);
373 fHnSigmaTOF[ispec][0]->SetLineColor(kRed);
374 fHnSigmaTOF[ispec][0]->SetStats(kFALSE);
375 fHnSigmaTOF[ispec][0]->Draw();
376 fHnSigmaTOF[ispec][1]->SetLineColor(kBlue);
377 fHnSigmaTOF[ispec][1]->SetStats(kFALSE);
378 fHnSigmaTOF[ispec][1]->Draw("same");
380 cNsigTOF->SaveAs(Form("%s_%s.gif", GetName(), cNsigTOF->GetName()));