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 **************************************************************************/
16 /* $Id: AliAnalysisTaskPIDqa.cxx 43811 2010-09-23 14:13:31Z wiechula $ */
19 #include <TObjArray.h>
27 #include <AliAnalysisManager.h>
28 #include <AliInputEventHandler.h>
29 #include <AliVEventHandler.h>
30 #include <AliVEvent.h>
31 #include <AliVParticle.h>
32 #include <AliVTrack.h>
35 #include <AliPIDResponse.h>
36 #include <AliITSPIDResponse.h>
37 #include <AliTPCPIDResponse.h>
38 #include <AliTRDPIDResponse.h>
39 #include <AliTOFPIDResponse.h>
41 #include "AliAnalysisTaskPIDqa.h"
44 ClassImp(AliAnalysisTaskPIDqa)
46 //______________________________________________________________________________
47 AliAnalysisTaskPIDqa::AliAnalysisTaskPIDqa():
61 //______________________________________________________________________________
62 AliAnalysisTaskPIDqa::AliAnalysisTaskPIDqa(const char* name):
63 AliAnalysisTaskSE(name),
72 // Default constructor
74 DefineInput(0,TChain::Class());
75 DefineOutput(1,TList::Class());
78 //______________________________________________________________________________
79 AliAnalysisTaskPIDqa::~AliAnalysisTaskPIDqa()
87 //______________________________________________________________________________
88 void AliAnalysisTaskPIDqa::UserCreateOutputObjects()
91 // Create the output QA objects
94 AliLog::SetClassDebugLevel("AliAnalysisTaskPIDqa",10);
97 AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
98 AliInputEventHandler *inputHandler=dynamic_cast<AliInputEventHandler*>(man->GetInputEventHandler());
99 if (!inputHandler) AliFatal("Input handler needed");
101 //pid response object
102 fPIDResponse=inputHandler->GetPIDResponse();
103 if (!fPIDResponse) AliFatal("PIDResponse object was not created");
109 fListQAits=new TList;
110 fListQAits->SetOwner();
111 fListQAits->SetName("ITS");
113 fListQAtpc=new TList;
114 fListQAtpc->SetOwner();
115 fListQAtpc->SetName("TPC");
117 fListQAtrd=new TList;
118 fListQAtrd->SetOwner();
119 fListQAtrd->SetName("TRD");
121 fListQAtof=new TList;
122 fListQAtof->SetOwner();
123 fListQAtof->SetName("TOF");
125 fListQA->Add(fListQAits);
126 fListQA->Add(fListQAtpc);
127 fListQA->Add(fListQAtrd);
128 fListQA->Add(fListQAtof);
139 //______________________________________________________________________________
140 void AliAnalysisTaskPIDqa::UserExec(Option_t */*option*/)
143 // Setup the PID response functions and fill the QA histograms
146 AliVEvent *event=InputEvent();
147 if (!event||!fPIDResponse) return;
157 //______________________________________________________________________________
158 void AliAnalysisTaskPIDqa::FillITSqa()
160 AliVEvent *event=InputEvent();
162 Int_t ntracks=event->GetNumberOfTracks();
163 for(Int_t itrack = 0; itrack < ntracks; itrack++){
164 AliVTrack *track=(AliVTrack*)event->GetTrack(itrack);
165 ULong_t status=track->GetStatus();
166 // not that nice. status bits not in virtual interface
167 // ITS refit + ITS pid
168 if (!( ( (status&0x0004)==0x0004 ) && ( (status&0x0008)==0x0008 ) )) return;
169 Double_t mom=track->P();
171 for (Int_t ispecie=0; ispecie<AliPID::kSPECIES; ++ispecie){
172 TH2 *h=(TH2*)fListQAits->At(ispecie);
174 Double_t nSigma=fPIDResponse->NumberOfSigmasITS(track, (AliPID::EParticleType)ispecie);
178 TH2 *h=(TH2*)fListQAits->At(AliPID::kSPECIES);
180 Double_t sig=track->GetITSsignal();
187 //______________________________________________________________________________
188 void AliAnalysisTaskPIDqa::FillTPCqa()
190 AliVEvent *event=InputEvent();
192 Int_t ntracks=event->GetNumberOfTracks();
193 for(Int_t itrack = 0; itrack < ntracks; itrack++){
194 AliVTrack *track=(AliVTrack*)event->GetTrack(itrack);
199 ULong_t status=track->GetStatus();
200 // not that nice. status bits not in virtual interface
201 // TPC refit + ITS refit + TPC pid
202 if (!( (status&0x0040)==0x0040) || !( (status&0x0004)==0x0004) || !((status&0x0080)==0x0080) ) return;
204 Float_t nCrossedRowsTPC = track->GetTPCClusterInfo(2,1);
205 Float_t ratioCrossedRowsOverFindableClustersTPC = 1.0;
206 if (track->GetTPCNclsF()>0) {
207 ratioCrossedRowsOverFindableClustersTPC = nCrossedRowsTPC/track->GetTPCNclsF();
210 if ( nCrossedRowsTPC<70 || ratioCrossedRowsOverFindableClustersTPC<.8 ) continue;
212 Double_t mom=track->GetTPCmomentum();
214 for (Int_t ispecie=0; ispecie<AliPID::kSPECIES; ++ispecie){
215 TH2 *h=(TH2*)fListQAtpc->At(ispecie);
217 Double_t nSigma=fPIDResponse->NumberOfSigmasTPC(track, (AliPID::EParticleType)ispecie);
221 TH2 *h=(TH2*)fListQAtpc->At(AliPID::kSPECIES);
223 Double_t sig=track->GetTPCsignal();
229 //______________________________________________________________________________
230 void AliAnalysisTaskPIDqa::FillTOFqa()
232 AliVEvent *event=InputEvent();
234 Int_t ntracks=event->GetNumberOfTracks();
235 for(Int_t itrack = 0; itrack < ntracks; itrack++){
236 AliVTrack *track=(AliVTrack*)event->GetTrack(itrack);
241 ULong_t status=track->GetStatus();
242 // not that nice. status bits not in virtual interface
243 // TPC refit + ITS refit +
244 // TOF out + TOFpid +
246 if (!((status&0x0040)==0x0040) || !((status&0x0004)==0x0004)
247 || !((status&0x2000)==0x2000) || !((status&0x8000)==0x8000)
248 || !((status&0x80000000)==0x80000000) ) return;
250 Float_t nCrossedRowsTPC = track->GetTPCClusterInfo(2,1);
251 Float_t ratioCrossedRowsOverFindableClustersTPC = 1.0;
252 if (track->GetTPCNclsF()>0) {
253 ratioCrossedRowsOverFindableClustersTPC = nCrossedRowsTPC/track->GetTPCNclsF();
256 if ( nCrossedRowsTPC<70 || ratioCrossedRowsOverFindableClustersTPC<.8 ) continue;
259 Double_t mom=track->P();
261 for (Int_t ispecie=0; ispecie<AliPID::kSPECIES; ++ispecie){
262 TH2 *h=(TH2*)fListQAtof->At(ispecie);
264 Double_t nSigma=fPIDResponse->NumberOfSigmasTOF(track, (AliPID::EParticleType)ispecie);
268 TH2 *h=(TH2*)fListQAtof->At(AliPID::kSPECIES);
270 Double_t sig=track->GetTOFsignal();
277 //______________________________________________________________________________
278 void AliAnalysisTaskPIDqa::SetupITSqa()
281 // Create the ITS qa objects
284 TVectorD *vX=MakeLogBinning(200,.1,30);
286 for (Int_t ispecie=0; ispecie<AliPID::kSPECIES; ++ispecie){
287 TH2F *hNsigmaP = new TH2F(Form("hNsigmaP_ITS_%s",AliPID::ParticleName(ispecie)),
288 Form("ITS n#sigma %s vs. p;p [GeV]; n#sigma",AliPID::ParticleName(ispecie)),
289 vX->GetNrows()-1,vX->GetMatrixArray(),
291 fListQAits->Add(hNsigmaP);
295 TH2F *hSig = new TH2F("hSigP_ITS",
296 "ITS signal vs. p;p [GeV]; ITS signal [arb. units]",
297 vX->GetNrows()-1,vX->GetMatrixArray(),
300 fListQAits->Add(hSig);
304 //______________________________________________________________________________
305 void AliAnalysisTaskPIDqa::SetupTPCqa()
308 // Create the TPC qa objects
311 TVectorD *vX=MakeLogBinning(200,.1,30);
313 for (Int_t ispecie=0; ispecie<AliPID::kSPECIES; ++ispecie){
314 TH2F *hNsigmaP = new TH2F(Form("hNsigmaP_TPC_%s",AliPID::ParticleName(ispecie)),
315 Form("TPC n#sigma %s vs. p;p [GeV]; n#sigma",AliPID::ParticleName(ispecie)),
316 vX->GetNrows()-1,vX->GetMatrixArray(),
318 fListQAtpc->Add(hNsigmaP);
322 TH2F *hSig = new TH2F("hSigP_TPC",
323 "TPC signal vs. p;p [GeV]; TPC signal [arb. units]",
324 vX->GetNrows()-1,vX->GetMatrixArray(),
327 fListQAtpc->Add(hSig);
331 //______________________________________________________________________________
332 void AliAnalysisTaskPIDqa::SetupTRDqa()
335 // Create the TRD qa objects
340 //______________________________________________________________________________
341 void AliAnalysisTaskPIDqa::SetupTOFqa()
344 // Create the TOF qa objects
347 TVectorD *vX=MakeLogBinning(200,.1,30);
349 for (Int_t ispecie=0; ispecie<AliPID::kSPECIES; ++ispecie){
350 TH2F *hNsigmaP = new TH2F(Form("hNsigmaP_TOF_%s",AliPID::ParticleName(ispecie)),
351 Form("TOF n#sigma %s vs. p;p [GeV]; n#sigma",AliPID::ParticleName(ispecie)),
352 vX->GetNrows()-1,vX->GetMatrixArray(),
354 fListQAtof->Add(hNsigmaP);
358 TH2F *hSig = new TH2F("hSigP_TOF",
359 "TOF signal vs. p;p [GeV]; TOF signal [arb. units]",
360 vX->GetNrows()-1,vX->GetMatrixArray(),
363 fListQAtof->Add(hSig);
367 //______________________________________________________________________________
368 TVectorD* AliAnalysisTaskPIDqa::MakeLogBinning(Int_t nbinsX, Double_t xmin, Double_t xmax)
371 // Make logarithmic binning
372 // the user has to delete the array afterwards!!!
376 if (xmin<1e-20 || xmax<1e-20){
377 AliError("For Log binning xmin and xmax must be > 1e-20. Using linear binning instead!");
378 return MakeLinBinning(nbinsX, xmin, xmax);
385 TVectorD *binLim=new TVectorD(nbinsX+1);
388 Double_t expMax=TMath::Log(last/first);
389 for (Int_t i=0; i<nbinsX+1; ++i){
390 (*binLim)[i]=first*TMath::Exp(expMax/nbinsX*(Double_t)i);
395 //______________________________________________________________________________
396 TVectorD* AliAnalysisTaskPIDqa::MakeLinBinning(Int_t nbinsX, Double_t xmin, Double_t xmax)
399 // Make linear binning
400 // the user has to delete the array afterwards!!!
407 TVectorD *binLim=new TVectorD(nbinsX+1);
410 Double_t binWidth=(last-first)/nbinsX;
411 for (Int_t i=0; i<nbinsX+1; ++i){
412 (*binLim)[i]=first+binWidth*(Double_t)i;
417 //_____________________________________________________________________________
418 TVectorD* AliAnalysisTaskPIDqa::MakeArbitraryBinning(const char* bins)
421 // Make arbitrary binning, bins separated by a ','
423 TString limits(bins);
424 if (limits.IsNull()){
425 AliError("Bin Limit string is empty, cannot add the variable");
429 TObjArray *arr=limits.Tokenize(",");
430 Int_t nLimits=arr->GetEntries();
432 AliError("Need at leas 2 bin limits, cannot add the variable");
437 TVectorD *binLimits=new TVectorD(nLimits);
438 for (Int_t iLim=0; iLim<nLimits; ++iLim){
439 (*binLimits)[iLim]=(static_cast<TObjString*>(arr->At(iLim)))->GetString().Atof();