3 #include <TCollection.h>
4 #include <TDirectory.h>
12 #include "AliESDtrack.h"
13 #include "AliESDEvent.h"
15 #include "AliESDpid.h"
17 #include "AliESDpidCuts.h"
19 ClassImp(AliESDpidCuts)
21 const Int_t AliESDpidCuts::kNcuts = 3;
23 //_____________________________________________________________________
24 AliESDpidCuts::AliESDpidCuts(const Char_t *name, const Char_t *title):
25 AliAnalysisCuts(name, title)
27 , fTPCsigmaCutRequired(0)
28 , fTOFsigmaCutRequired(0)
29 , fCutTPCclusterRatio(0.)
30 , fMinMomentumTOF(0.5)
31 , fHcutStatistics(NULL)
32 , fHcutCorrelation(NULL)
35 // Default constructor
38 fESDpid = new AliESDpid;
39 memset(fCutTPCnSigma, 0, sizeof(Float_t) * 2);
40 memset(fCutTOFnSigma, 0, sizeof(Float_t) * 2);
42 memset(fHclusterRatio, 0, sizeof(TH1F *) * 2);
43 memset(fHnSigmaTPC, 0, sizeof(TH1F *) * AliPID::kSPECIES * 2);
44 memset(fHnSigmaTOF, 0, sizeof(TH1F *) * AliPID::kSPECIES * 2);
47 //_____________________________________________________________________
48 AliESDpidCuts::AliESDpidCuts(const AliESDpidCuts &ref):
51 , fTPCsigmaCutRequired(ref.fTPCsigmaCutRequired)
52 , fTOFsigmaCutRequired(ref.fTOFsigmaCutRequired)
53 , fCutTPCclusterRatio(ref.fCutTPCclusterRatio)
54 , fMinMomentumTOF(ref.fMinMomentumTOF)
55 , fHcutStatistics(NULL)
56 , fHcutCorrelation(NULL)
61 fESDpid = new AliESDpid(*ref.fESDpid);
62 memcpy(fCutTPCnSigma, ref.fCutTPCnSigma, sizeof(Float_t) * AliPID::kSPECIES * 2);
63 memcpy(fCutTOFnSigma, ref.fCutTOFnSigma, sizeof(Float_t) * AliPID::kSPECIES * 2);
65 if(ref.fHcutStatistics) fHcutStatistics = dynamic_cast<TH1I *>(ref.fHcutStatistics->Clone());
66 if(ref.fHcutCorrelation) fHcutCorrelation = dynamic_cast<TH2I *>(ref.fHcutCorrelation->Clone());
67 for(Int_t imode = 0; imode < 2; imode++){
68 if(ref.fHclusterRatio[imode]) fHclusterRatio[imode] = dynamic_cast<TH1F *>(ref.fHclusterRatio[imode]->Clone());
69 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
70 if(fHnSigmaTPC[ispec][imode]) fHnSigmaTPC[ispec][imode] = dynamic_cast<TH1F *>(fHnSigmaTPC[ispec][imode]->Clone());
71 if(fHnSigmaTOF[ispec][imode]) fHnSigmaTOF[ispec][imode] = dynamic_cast<TH1F *>(fHnSigmaTPC[ispec][imode]->Clone());
76 //_____________________________________________________________________
77 AliESDpidCuts &AliESDpidCuts::operator=(const AliESDpidCuts &ref){
79 // Assignment operator
86 //_____________________________________________________________________
87 AliESDpidCuts::~AliESDpidCuts(){
93 delete fHcutStatistics;
94 delete fHcutCorrelation;
95 for(Int_t imode = 0; imode < 2; imode++){
96 delete fHclusterRatio[imode];
97 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
98 delete fHnSigmaTPC[ispec][imode];
99 delete fHnSigmaTOF[ispec][imode];
104 //_____________________________________________________________________
105 Bool_t AliESDpidCuts::IsSelected(TObject *track, TObject *event){
109 if(TString(track->IsA()->GetName()).CompareTo("AliESDtrack")){
110 Char_t errormessage[256];
111 sprintf(errormessage, "Provided object not an AliESDtrack: Type %s", track->IsA()->GetName());
112 AliError(errormessage);
115 return AcceptTrack(const_cast<const AliESDtrack *>(dynamic_cast<AliESDtrack *>(track)),dynamic_cast<AliESDEvent *>(event));
118 //_____________________________________________________________________
119 void AliESDpidCuts::Copy(TObject &c) const {
123 AliESDpidCuts &target = dynamic_cast<AliESDpidCuts &>(c);
125 target.fESDpid = new AliESDpid(*fESDpid);
127 target.fCutTPCclusterRatio = fCutTPCclusterRatio;
128 target.fMinMomentumTOF = fMinMomentumTOF;
130 target.fTPCsigmaCutRequired = fTPCsigmaCutRequired;
131 target.fTOFsigmaCutRequired = fTOFsigmaCutRequired;
133 if(fHcutStatistics) target.fHcutStatistics = dynamic_cast<TH1I *>(fHcutStatistics->Clone());
134 if(fHcutCorrelation) target.fHcutCorrelation = dynamic_cast<TH2I *>(fHcutCorrelation->Clone());
135 for(Int_t imode = 0; imode < 2; imode++){
136 if(fHclusterRatio[imode]) target.fHclusterRatio[imode] = dynamic_cast<TH1F *>(fHclusterRatio[imode]->Clone());
137 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
138 if(fHnSigmaTPC[ispec][imode]) target.fHnSigmaTPC[ispec][imode] = dynamic_cast<TH1F *>(fHnSigmaTPC[ispec][imode]->Clone());
139 if(fHnSigmaTOF[ispec][imode]) target.fHnSigmaTOF[ispec][imode] = dynamic_cast<TH1F *>(fHnSigmaTOF[ispec][imode]->Clone());
143 memcpy(target.fCutTPCnSigma, fCutTPCnSigma, sizeof(Float_t) * AliPID::kSPECIES * 2);
144 memcpy(target.fCutTOFnSigma, fCutTOFnSigma, sizeof(Float_t) * AliPID::kSPECIES);
146 AliESDpidCuts::Copy(c);
149 //_____________________________________________________________________
150 Long64_t AliESDpidCuts::Merge(TCollection *coll){
155 if(coll->IsEmpty()) return 1;
156 if(!HasHistograms()) return 0;
158 TIterator *iter = coll->MakeIterator();
160 AliESDpidCuts *ref = NULL;
162 while((o = iter->Next())){
163 ref = dynamic_cast<AliESDpidCuts *>(o);
165 if(!ref->HasHistograms()) continue;
167 fHcutStatistics->Add(ref->fHcutStatistics);
168 fHcutCorrelation->Add(ref->fHcutCorrelation);
169 for(Int_t imode = 0; imode < 2; imode++){
170 fHclusterRatio[imode]->Add(ref->fHclusterRatio[imode]);
171 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
172 fHnSigmaTPC[ispec][imode]->Add(ref->fHnSigmaTPC[ispec][imode]);
173 fHnSigmaTOF[ispec][imode]->Add(ref->fHnSigmaTOF[ispec][imode]);
181 //_____________________________________________________________________
182 void AliESDpidCuts::DefineHistograms(Color_t color){
184 // Swich on QA and create the histograms
186 SetBit(kHasHistograms, kTRUE);
187 fHcutStatistics = new TH1I("fHcutStatistics", "Cut Statistics", kNcuts, 0, kNcuts);
188 fHcutStatistics->SetLineColor(color);
189 fHcutCorrelation = new TH2I("fHcutCorrelation", "Cut Correlation", kNcuts, 0, kNcuts, kNcuts, 0, kNcuts);
190 TString cutname[kNcuts] = {"TPCclusterRatio", "TPC sigma", "TOF sigma"};
191 for(Int_t icut = 0; icut < kNcuts; icut++){
192 fHcutStatistics->GetXaxis()->SetBinLabel(fHcutStatistics->GetXaxis()->GetFirst() + icut, cutname[icut].Data());
193 fHcutCorrelation->GetXaxis()->SetBinLabel(fHcutCorrelation->GetXaxis()->GetFirst() + icut, cutname[icut].Data());
194 fHcutCorrelation->GetYaxis()->SetBinLabel(fHcutCorrelation->GetYaxis()->GetFirst() + icut, cutname[icut].Data());
196 Char_t hname[256], htitle[256];
197 for(Int_t imode = 0; imode < 2; imode++){
198 sprintf(hname, "fHclusterRatio%s", imode ? "After" : "Before");
199 sprintf(htitle, "TPC cluster Ratio %s cuts;Ratio;Entries", imode ? "after" : "before");
200 fHclusterRatio[imode] = new TH1F(hname, htitle, 20, 0., 1.);
201 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
202 sprintf(hname, "fHnSigma%sTPC%s", AliPID::ParticleName(ispec), imode ? "after" : "before");
203 sprintf(htitle, "TPC sigma for %s %s cuts;sigma;Entries", AliPID::ParticleName(ispec), imode ? "after" : "before");
204 fHnSigmaTPC[ispec][imode] = new TH1F(hname, htitle, 200, -10., 10.);
205 sprintf(hname, "fHnSigma%sTOF%s", AliPID::ParticleName(ispec), imode ? "after" : "before");
206 sprintf(htitle, "TOF sigma for %s %s cuts;sigma;Entries", AliPID::ParticleName(ispec), imode ? "after" : "before");
207 fHnSigmaTOF[ispec][imode] = new TH1F(hname, htitle, 200, -10., 10.);
212 //_____________________________________________________________________
213 Bool_t AliESDpidCuts::AcceptTrack(const AliESDtrack *track, const AliESDEvent *event){
215 // Check whether the tracks survived the cuts
222 Long64_t cutRequired=0, cutFullfiled = 0;
223 if(fTOFsigmaCutRequired && event == 0)
224 AliError("No event pointer. Need event pointer for T0 for TOF cut");
225 Double_t clusterRatio = track->GetTPCNclsF() ? static_cast<Float_t>(track->GetTPCNcls())/static_cast<Float_t>(track->GetTPCNclsF()) : 1.;
226 if(fCutTPCclusterRatio > 0.){
227 SETBIT(cutRequired, kCutClusterRatioTPC);
228 if(clusterRatio >= fCutTPCclusterRatio)
229 SETBIT(cutFullfiled, kCutClusterRatioTPC);
231 // check TPC nSigma cut
232 Float_t nsigmaTPC[AliPID::kSPECIES], nsigma; // need all sigmas for QA plotting
233 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
234 nsigmaTPC[ispec] = nsigma = fESDpid->NumberOfSigmasTPC(track,(AliPID::EParticleType)ispec);
235 if(!(fTPCsigmaCutRequired & 1 << ispec)) continue;
236 SETBIT(cutRequired, kCutNsigmaTPC); // We found at least one species where the n-Sigma Cut is required
237 if(nsigma >= fCutTPCnSigma[2*ispec] && nsigma <= fCutTPCnSigma[2*ispec+1]) SETBIT(cutFullfiled, kCutNsigmaTPC); // Fullfiled for at least one species
239 // check TOF nSigma cut
240 Float_t nsigmaTOF[AliPID::kSPECIES]; // see above
241 Bool_t hasTOFpid = track->GetStatus() & AliESDtrack::kTOFpid; // only apply TOF n-sigma cut when PID Status Bit is set
242 Double_t times[AliPID::kSPECIES];
243 track->GetIntegratedTimes(times);
244 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
246 if(hasTOFpid) nsigmaTOF[ispec] = nsigma = fESDpid->NumberOfSigmasTOF(track,(AliPID::EParticleType)ispec, event->GetT0());
247 if(!(fTOFsigmaCutRequired && 1 << ispec)) continue;
248 SETBIT(cutRequired, kCutNsigmaTOF);
249 if(track->GetOuterParam()->P() >= fMinMomentumTOF){
250 if(hasTOFpid && nsigma <= fCutTOFnSigma[2*ispec] && nsigma >= fCutTOFnSigma[2*ispec+1]) SETBIT(cutFullfiled, kCutNsigmaTOF);
254 // Fill Histograms before cuts
256 fHclusterRatio[0]->Fill(clusterRatio);
257 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
258 fHnSigmaTPC[ispec][0]->Fill(nsigmaTPC[ispec]);
259 if(hasTOFpid) fHnSigmaTOF[ispec][0]->Fill(nsigmaTOF[ispec]);
262 if(cutRequired != cutFullfiled){
263 // Fill cut statistics
265 for(Int_t icut = 0; icut < kNcuts; icut++){
266 if(TESTBIT(cutRequired, icut) && !TESTBIT(cutFullfiled, icut)){
268 fHcutStatistics->Fill(icut);
269 for(Int_t jcut = 0; jcut <= icut; jcut++)
270 if(TESTBIT(cutRequired, jcut) && !TESTBIT(cutFullfiled, jcut)) fHcutCorrelation->Fill(jcut, icut);
274 return kFALSE; // At least one cut is not fullfiled
277 // Fill Histograms after cuts
279 fHclusterRatio[1]->Fill(clusterRatio);
280 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
281 fHnSigmaTPC[ispec][1]->Fill(nsigmaTPC[ispec]);
282 if(hasTOFpid) fHnSigmaTOF[ispec][1]->Fill(nsigmaTOF[ispec]);
289 //_____________________________________________________________________
290 void AliESDpidCuts::SaveHistograms(const Char_t * location){
292 // Save the histograms to a file
294 if(!HasHistograms()){
295 AliError("Histograms not on - Exiting");
298 if(!location) location = GetName();
299 gDirectory->mkdir(location);
300 gDirectory->cd(location);
301 fHcutStatistics->Write();
302 fHcutCorrelation->Write();
304 gDirectory->mkdir("before_cuts");
305 gDirectory->mkdir("after_cuts");
307 gDirectory->cd("before_cuts");
308 fHclusterRatio[0]->Write();
309 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
310 fHnSigmaTPC[ispec][0]->Write();
311 fHnSigmaTOF[ispec][0]->Write();
314 gDirectory->cd("../after_cuts");
315 fHclusterRatio[1]->Write();
316 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
317 fHnSigmaTPC[ispec][1]->Write();
318 fHnSigmaTOF[ispec][1]->Write();
321 gDirectory->cd("..");
324 //_____________________________________________________________________
325 void AliESDpidCuts::DrawHistograms(){
327 // Draw the Histograms
329 TCanvas *stat = new TCanvas("cutStat", "Cut Statistics", 640, 480);
331 fHcutStatistics->SetStats(kFALSE);
332 fHcutStatistics->Draw();
333 stat->SaveAs(Form("%s_%s.gif", GetName(), stat->GetName()));
335 TCanvas *correl = new TCanvas("cutCorrelation", "Cut Correlation", 640, 480);
337 fHcutCorrelation->SetStats(kFALSE);
338 fHcutCorrelation->Draw("colz");
339 correl->SaveAs(Form("%s_%s.gif", GetName(), correl->GetName()));
341 TCanvas *cRatio = new TCanvas("ClusterRatioTPC", "TPC cluster Ratio", 640, 480);
343 fHclusterRatio[0]->SetLineColor(kRed);
344 fHclusterRatio[0]->SetStats(kFALSE);
345 fHclusterRatio[0]->Draw();
346 fHclusterRatio[1]->SetLineColor(kBlue);
347 fHclusterRatio[1]->SetStats(kFALSE);
348 fHclusterRatio[1]->Draw("same");
349 cRatio->SaveAs(Form("%s_%s.gif", GetName(), cRatio->GetName()));
351 TCanvas *cNsigTPC = new TCanvas("NsigmaTPC", "TPC n-sigma", 640, 480);
352 cNsigTPC->Divide(3,2);
353 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
354 cNsigTPC->cd(ispec + 1);
355 fHnSigmaTPC[ispec][0]->SetLineColor(kRed);
356 fHnSigmaTPC[ispec][0]->SetStats(kFALSE);
357 fHnSigmaTPC[ispec][0]->Draw();
358 fHnSigmaTPC[ispec][1]->SetLineColor(kBlue);
359 fHnSigmaTPC[ispec][1]->SetStats(kFALSE);
360 fHnSigmaTPC[ispec][1]->Draw("same");
362 cNsigTPC->SaveAs(Form("%s_%s.gif", GetName(), cNsigTPC->GetName()));
364 TCanvas *cNsigTOF = new TCanvas("NsigmaTOF", "TOF n-sigma", 640, 480);
365 cNsigTOF->Divide(3,2);
366 for(Int_t ispec = 0; ispec < AliPID::kSPECIES; ispec++){
367 cNsigTOF->cd(ispec + 1);
368 fHnSigmaTOF[ispec][0]->SetLineColor(kRed);
369 fHnSigmaTOF[ispec][0]->SetStats(kFALSE);
370 fHnSigmaTOF[ispec][0]->Draw();
371 fHnSigmaTOF[ispec][1]->SetLineColor(kBlue);
372 fHnSigmaTOF[ispec][1]->SetStats(kFALSE);
373 fHnSigmaTOF[ispec][1]->Draw("same");
375 cNsigTOF->SaveAs(Form("%s_%s.gif", GetName(), cNsigTOF->GetName()));