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b2a297fa 1/*************************************************************************
2* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
3* *
4* Author: The ALICE Off-line Project. *
5* Contributors are mentioned in the code where appropriate. *
6* *
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**************************************************************************/
15
16//#####################################################
17//# #
18//# Simple efficiency study for dielectrons #
19//# Author: Jens Wiechula Jens.Wiechula@cern.ch #
20//# #
21//#####################################################
22
23#include <TParticle.h>
24#include <TParticlePDG.h>
25#include <TDatabasePDG.h>
26#include <TROOT.h>
27#include "TChain.h"
28#include <TCanvas.h>
29// #include "TTree.h"
30#include <TH1.h>
31#include <TH2F.h>
32#include <THashList.h>
33
34#include "AliAnalysisManager.h"
35
36#include "AliESDInputHandler.h"
37#include "AliMCEventHandler.h"
38#include "AliMCEvent.h"
39#include "AliVEvent.h"
40#include "AliESDEvent.h"
41#include "AliESDtrack.h"
42#include "AliStack.h"
43#include "AliKFParticle.h"
44#include "AliESDtrackCuts.h"
45#include "AliKineTrackCuts.h"
46#include "AliLog.h"
47
48#include "AliDielectronHistos.h"
49#include "AliAnalysisTaskDielectronEfficiency.h"
50
51ClassImp(AliAnalysisTaskDielectronEfficiency)
52
53
54//=================================================================================
55AliAnalysisTaskDielectronEfficiency::AliAnalysisTaskDielectronEfficiency() :
56 AliAnalysisTask(),
57 fInputEvent(0),
58 fHist(0),
59 fESDtrackCuts(0),
60 fKineCutsLegs(0),
61 fKineCutsMother(0),
62 fIdMCMother(443),
63 fIdMCDaughterP(-11),
64 fIdMCDaughterN(11),
65 fPDG(TDatabasePDG::Instance())
66{
67}
68
69//=================================================================================
70AliAnalysisTaskDielectronEfficiency::AliAnalysisTaskDielectronEfficiency(const char *name) :
71 AliAnalysisTask(name,name),
72 fInputEvent(0),
73 fHist(0),
74 fESDtrackCuts(new AliESDtrackCuts),
75 fKineCutsLegs(new AliKineTrackCuts),
76 fKineCutsMother(new AliKineTrackCuts),
77 fIdMCMother(443),
78 fIdMCDaughterP(-11),
79 fIdMCDaughterN(11),
80 fPDG(TDatabasePDG::Instance())
81{
82 //
83 // named constructor. This is the one that should be used by the user, oterwise the
84 // essential objects are not created!
85 //
86 DefineInput(0,TChain::Class());
87 DefineOutput(0, THashList::Class());
88}
89
90//=================================================================================
91AliAnalysisTaskDielectronEfficiency::~AliAnalysisTaskDielectronEfficiency()
92{
93 //
94 // dtor
95 //
96 if (fESDtrackCuts) delete fESDtrackCuts;
97 if (fKineCutsLegs) delete fKineCutsLegs;
98 if (fKineCutsMother) delete fKineCutsMother;
99}
100//=================================================================================
101void AliAnalysisTaskDielectronEfficiency::CreateOutputObjects() {
102 //
103 // Create histograms
104 // Called once
105 //
106
107 //-------------------
108 // MC truth produced
109 fHist=new AliDielectronHistos;
110 fHist->AddClass("MC;MCcut;DataSameMother;Event;DataCuts;DataTRDCuts");
111
112 fHist->UserHistogram("MC", "JpsiMCPt" ,"MC Jpsi;Pt [GeV]" ,100,0,10);
113 fHist->UserHistogram("MC", "mass" ,"MC Jpsi; Inv.Mass [GeV]" ,100,0,4);
114 fHist->UserHistogram("MC", "e+Pt" ,"MC e+ from JPsi;Pt [GeV]" ,100,0,10);
115 fHist->UserHistogram("MC", "e-Pt" ,"MC e- from JPsi;Pt [GeV]" ,100,0,10);
116 fHist->UserHistogram("MC", "dndyPt" ,"MC Jpsi procution; Rapidity;Pt",100,-4,4,100,0,10);
117 fHist->UserHistogram("MC","dndy" ,"MC dNdy Jpsi;Rapidity;Entries/event" ,100,-4,4);
118 fHist->GetHistogram("MC","dndy")->Sumw2();
119
120 //-------------------
121 //MC truth after cuts
122 fHist->UserHistogram("MCcut", "JpsiMCPt" ,"MC Jpsi;Pt [GeV]" ,100,0,10);
123 fHist->UserHistogram("MCcut", "mass" ,"MC Jpsi; Inv.Mass [GeV]" ,100,0,4);
124 fHist->UserHistogram("MCcut", "e+Pt" ,"MC e+ from JPsi;Pt [GeV]" ,100,0,10);
125 fHist->UserHistogram("MCcut", "e-Pt" ,"MC e- from JPsi;Pt [GeV]" ,100,0,10);
126 fHist->UserHistogram("MCcut", "dndyPt" ,"MC Jpsi procution; Rapidity;Pt",100,-4,4,100,0,10);
127 fHist->UserHistogram("MCcut","dndy" ,"MC dNdy Jpsi;Rapidity;Entries/event" ,100,-4,4);
128 fHist->GetHistogram("MCcut","dndy")->Sumw2();
129
130 //-----------------
131 //reconstructed data with cuts on MC truth
132 fHist->UserHistogram("DataSameMother","JpsiMCPt","Rec Jpsi; MC Pt [GeV]", 100,0,10);
133 fHist->UserHistogram("DataSameMother","dndyPtMC" ,"Rec Jpsi procution; Rapidity;Pt",100,-4,4,100,0,10);
134 fHist->UserHistogram("DataSameMother", "e+Pt" ,"Rec e+ from JPsi;MC Pt [GeV]" ,100,0,10);
135 fHist->UserHistogram("DataSameMother", "e-Pt" ,"Rec e- from JPsi;MC Pt [GeV]" ,100,0,10);
136 fHist->UserHistogram("DataSameMother","dndy" ,"Rec Jpsi;Rapidity;Entries/event" ,100,-4,4);
137 fHist->GetHistogram("DataSameMother","dndy")->Sumw2();
138
139 fHist->UserHistogram("DataSameMother","mass" ,"Rec Jpsi (KF); Inv.Mass [GeV]" ,100,0,4);
140 fHist->UserHistogram("DataSameMother","JpsiPt" ,"Rec Jpsi (KF); Pt [GeV]" ,100,0,10);
141 fHist->UserHistogram("DataSameMother","Chi2" ,"Rec Jpsi (KF); #Chi^{2}" ,100,0,50);
142 fHist->UserHistogram("DataSameMother","dndyPt" ,"Rec Jpsi procution (KF); Rapidity;Pt",100,-4,4,100,0,10);
143 //------------------
144 // reconstructed data after ESD track cuts and cuts on MC truth
145 //------------------
146 fHist->UserHistogram("DataCuts","JpsiMCPt","Rec Jpsi; MC Pt [GeV]", 100,0,10);
147 fHist->UserHistogram("DataCuts","dndyPtMC" ,"Rec Jpsi procution; Rapidity;Pt",100,-4,4,100,0,10);
148 fHist->UserHistogram("DataCuts", "e+Pt" ,"Rec e+ from JPsi;MC Pt [GeV]" ,100,0,10);
149 fHist->UserHistogram("DataCuts", "e-Pt" ,"Rec e- from JPsi;MC Pt [GeV]" ,100,0,10);
150 fHist->UserHistogram("DataCuts","dndy" ,"Rec Jpsi;Rapidity;Entries/event" ,100,-4,4);
151 fHist->GetHistogram("DataCuts","dndy")->Sumw2();
152
153 fHist->UserHistogram("DataCuts","mass" ,"Rec Jpsi (KF); Inv.Mass [GeV]" ,100,0,4);
154 fHist->UserHistogram("DataCuts","JpsiPt" ,"Rec Jpsi (KF); Pt [GeV]" ,100,0,10);
155 fHist->UserHistogram("DataCuts","Chi2" ,"Rec Jpsi (KF); #Chi^{2}" ,100,0,50);
156 fHist->UserHistogram("DataCuts","dndyPt" ,"Rec Jpsi procution (KF); Rapidity;Pt",100,-4,4,100,0,10);
157 //------------------
158 // after ESD track cuts + TRD cuts + MC cuts
159 //------------------
160 fHist->UserHistogram("DataTRDCuts","JpsiMCPt","Rec Jpsi; MC Pt [GeV]", 100,0,10);
161 fHist->UserHistogram("DataTRDCuts","dndyPtMC" ,"Rec Jpsi procution; Rapidity;Pt",100,-4,4,100,0,10);
162 fHist->UserHistogram("DataTRDCuts", "e+Pt" ,"Rec e+ from JPsi;MC Pt [GeV]" ,100,0,10);
163 fHist->UserHistogram("DataTRDCuts", "e-Pt" ,"Rec e- from JPsi;MC Pt [GeV]" ,100,0,10);
164 fHist->UserHistogram("DataTRDCuts","dndy" ,"Rec Jpsi;Rapidity;Entries/event" ,100,-4,4);
165 fHist->GetHistogram("DataTRDCuts","dndy")->Sumw2();
166
167 fHist->UserHistogram("DataTRDCuts","mass" ,"Rec Jpsi (KF); Inv.Mass [GeV]" ,100,0,4);
168 fHist->UserHistogram("DataTRDCuts","JpsiPt" ,"Rec Jpsi (KF); Pt [GeV]" ,100,0,10);
169 fHist->UserHistogram("DataTRDCuts","Chi2" ,"Rec Jpsi (KF); #Chi^{2}" ,100,0,50);
170 fHist->UserHistogram("DataTRDCuts","dndyPt" ,"Rec Jpsi procution (KF); Rapidity;Pt",100,-4,4,100,0,10);
171
172 //-----------------
173 //Event information
174 //-----------------
175 fHist->UserHistogram("Event","NEvents","Number of events",1,0,1);
176
177}
178
179// //____________________________________________________________
180void AliAnalysisTaskDielectronEfficiency::ConnectInputData(Option_t *) {
181 //
182 // connect the input data
183 //
184 fInputEvent=0;
185 TTree* tree=dynamic_cast<TTree*>(GetInputData(0));
186 if (!tree) {
187 printf("ERROR: Could not read chain from input slot 0\n");
188 } else {
189 AliInputEventHandler *eventH = dynamic_cast<AliInputEventHandler*> (AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler());
190 if (!eventH) {
191 AliError("Could not get ESDInputHandler");
192 } else {
193 fInputEvent = eventH->GetEvent();
194 AliInfo("*** CONNECTED NEW EVENT ****");
195 }
196 }
197}
198
199//=================================================================================
200void AliAnalysisTaskDielectronEfficiency::Exec(Option_t *) {
201 //
202 // Main loop. Called for every event
203 // Process the event in FillPlots and post the data afterwards
204 //
205 if (!fInputEvent) {
206 Printf("ERROR: Could not get input event\n");
207 return;
208 }
209
210 FillPlots(fInputEvent);
211
212 PostData(0, const_cast<THashList*>(fHist->GetHistogramList()));
213}
214
215
216//====================================================================================
217void AliAnalysisTaskDielectronEfficiency::FillPlots(AliVEvent *event)
218{
219 //
220 // Fill histograms
221 //
222 AliESDEvent *esd=dynamic_cast<AliESDEvent*>(event);
45b2b1b8 223 if (!esd) return;
b2a297fa 224 Int_t ntrack=esd->GetNumberOfTracks();
225
226 // Fetch Stack
227 AliMCEventHandler *mcH = (AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler());
228 if(!mcH) {
13242232 229 AliError("No MC handler found\n");
b2a297fa 230 return;
231 }
232
233 AliMCEvent *mcev=mcH->MCEvent();
234 if (!mcev){
13242232 235 AliError("No MC event found\n");
b2a297fa 236 return;
237 }
238 AliStack* pStack = mcev->Stack();
239
240 if (!pStack) return;
241
242 //fill event info
243 fHist->Fill("Event","NEvents",0);
244
245 //fill MC histograms
246 FillMCInfo(pStack);
247
248 //
249 Float_t massMother=0;
250 if (fIdMCMother>-1) fPDG->GetParticle(fIdMCMother)->Mass();
251
252 TLorentzVector v;
253 //loop over all tracks
254 for (Int_t itrack=0; itrack<ntrack; ++itrack){
255 //negative particles only in this loop
256 AliESDtrack *trackN=esd->GetTrack(itrack);
257 if (trackN->Charge()!=-1) continue;
258
259 //MC truth
260 Int_t labelN=TMath::Abs(trackN->GetLabel());
261 if (labelN<0) continue;
262 TParticle *pN=pStack->Particle(labelN);
263 Int_t pdgN=pN->GetPdgCode();
264
265 //MC mother
266 Int_t idMotherN=pN->GetFirstMother();
267 TParticle *motherN=0;
268 Int_t pdgMotherN=-1;
269 if (fIdMCMother>-1&&idMotherN>-1){
270 motherN=pStack->Particle(idMotherN);
271 pdgMotherN=motherN->GetPdgCode();
272 }
273
274 for (Int_t itrack2=0; itrack2<ntrack; ++itrack2){
275 //positive particles only in this loop
276 AliESDtrack *trackP=esd->GetTrack(itrack2);
277 if (trackP->Charge()!=1) continue;
278
279 //MC truth
280 Int_t labelP=TMath::Abs(trackP->GetLabel());
281 if (labelP<0) continue;
282 TParticle *pP=pStack->Particle(labelP);
283 // Int_t pdgP=pP->GetPdgCode();
284
285 //MC mother
286 Int_t idMotherP=pP->GetFirstMother();
45b2b1b8 287// TParticle *motherP=0;
b2a297fa 288 // Int_t pdgMotherP=0;
289 if (idMotherP>-1){
45b2b1b8 290// motherP=pStack->Particle(idMotherP);
b2a297fa 291 // pdgMotherP=motherP->GetPdgCode();
292 }
293 //===============
294 //Fill histograms
295 //===============
296 Bool_t motherOK=kFALSE;
297 if (fIdMCMother==-1) motherOK=kTRUE;
298 else if (pdgMotherN==fIdMCMother) motherOK=kTRUE;
299
300 if (pdgN==fIdMCDaughterN && motherOK){ //electron and mother is fIdMCMother
301 AliKFParticle electron(*trackN,11);
302 AliKFParticle positron(*trackP,-11);
303 AliKFParticle jpsi(electron);
304 jpsi+=positron;
305
306 Bool_t sameMother=kFALSE;
307 Bool_t motherCutOK=kFALSE;
308
309 if (fIdMCMother==-1) {
310 //accept as same mother if we don't requite
311 sameMother=kTRUE;
312 motherCutOK=kTRUE;
313 }
314 else
315 {
316 if (idMotherN==idMotherP) sameMother=kTRUE;
317 if (fKineCutsMother->IsSelected(motherN)) motherCutOK=kTRUE;
318 }
319
320 if ( sameMother && // same mother
321 motherCutOK && //cuts mother MC truth
322 fKineCutsLegs->IsSelected(pN) && fKineCutsLegs->IsSelected(pP)){ //cuts legs MC truth
323
324 //MC only data
325 if (motherN){
326 fHist->Fill("DataSameMother","JpsiMCPt",motherN->Pt());
327 fHist->Fill("DataSameMother","e+Pt",pP->Pt());
328 fHist->Fill("DataSameMother","e-Pt",pN->Pt());
329 v.SetPxPyPzE(motherN->Px(),motherN->Py(),motherN->Pz(),motherN->Energy());
330 fHist->Fill("DataSameMother","dndy",v.Rapidity());
331 fHist->Fill("DataSameMother","dndyPtMC",v.Rapidity(),motherN->Pt());
332 }
333
334 //reconstructed data
335 v.SetPtEtaPhiM(jpsi.GetPt(),jpsi.GetEta(),jpsi.GetPhi(),massMother);
336// printf("Jpsi: %f,%f,%f,%f\n",jpsi.GetPt(),jpsi.GetEta(),jpsi.GetPhi(),massMother);
337 fHist->Fill("DataSameMother","JpsiPt",jpsi.GetPt());
338 fHist->Fill("DataSameMother","Chi2",jpsi.GetChi2()/jpsi.GetNDF());
339 fHist->Fill("DataSameMother","mass",jpsi.GetMass());
340 fHist->Fill("DataSameMother","dndyPt",v.Rapidity(),jpsi.GetPt());
341
342 //histograms after ESD cuts
343 if (fESDtrackCuts->IsSelected(trackN)&&fESDtrackCuts->IsSelected(trackP)){
344 //MC only
345 if (motherN) {
346 fHist->Fill("DataCuts","JpsiMCPt",motherN->Pt());
347 fHist->Fill("DataCuts","e+Pt",pP->Pt());
348 fHist->Fill("DataCuts","e-Pt",pN->Pt());
349 v.SetPxPyPzE(motherN->Px(),motherN->Py(),motherN->Pz(),motherN->Energy());
350 fHist->Fill("DataCuts","dndy",v.Rapidity());
351 fHist->Fill("DataCuts","dndyPtMC",motherN->Eta(),motherN->Pt());
352 }
353
354 //reconstructed data
355 v.SetPtEtaPhiM(jpsi.GetPt(),jpsi.GetEta(),jpsi.GetPhi(),massMother);
356 fHist->Fill("DataCuts","JpsiPt",jpsi.GetPt());
357 fHist->Fill("DataCuts","Chi2",jpsi.GetChi2()/jpsi.GetNDF());
358 fHist->Fill("DataCuts","mass",jpsi.GetMass());
359 fHist->Fill("DataCuts","dndyPt",v.Rapidity(),jpsi.GetPt());
360
361 //Additional TRD cuts
37e9382d 362 if ( ((trackN->GetStatus()&AliESDtrack::kTRDrefit)!=0) && trackN->GetTRDntrackletsPID()>4 ){
363 if ( ((trackP->GetStatus()&AliESDtrack::kTRDrefit)!=0) && trackP->GetTRDntrackletsPID()>4 ){
b2a297fa 364 if (motherN){
365 fHist->Fill("DataTRDCuts","JpsiMCPt",motherN->Pt());
366 fHist->Fill("DataTRDCuts","e+Pt",pP->Pt());
367 fHist->Fill("DataTRDCuts","e-Pt",pN->Pt());
368 v.SetPxPyPzE(motherN->Px(),motherN->Py(),motherN->Pz(),motherN->Energy());
369 fHist->Fill("DataTRDCuts","dndy",v.Rapidity());
370 fHist->Fill("DataTRDCuts","dndyPtMC",v.Rapidity(),motherN->Pt());
371 }
372
373 //reconstructed data
374 v.SetPtEtaPhiM(jpsi.GetPt(),jpsi.GetEta(),jpsi.GetPhi(),massMother);
375 fHist->Fill("DataTRDCuts","JpsiPt",jpsi.GetPt());
376 fHist->Fill("DataTRDCuts","Chi2",jpsi.GetChi2()/jpsi.GetNDF());
377 fHist->Fill("DataTRDCuts","mass",jpsi.GetMass());
378 fHist->Fill("DataTRDCuts","dndyPt",v.Rapidity(),jpsi.GetPt());
379 }
380 }
381 }
382 }
383 }
384 }
385 }
386}
387
388//____________________________________________________________
389// Int_t AliAnalysisTaskDielectronEfficiency::Merge(TList *list)
390// {
391// //
392// // Merge function
393// //
394// if (!list) return 0;
395// if (list->IsEmpty()) return 1;
396//
397// TIter next(list);
398// while ( (TObject *o=next()) ){
399// AliAnalysisTaskDielectronEfficiency *task=dynamic_cast<AliAnalysisTaskDielectronEfficiency*>o;
400// if (!o) continue;
401// fNev+=task->fNev;
402// }
403// }
404
405
e123f993 406void AliAnalysisTaskDielectronEfficiency::FillMCInfo(AliStack * const pStack)
b2a297fa 407{
408 //
409 // fill pure MC histograms
410 //
411
412 TLorentzVector v;
413 //Fill MC info
37e9382d 414 for (Int_t ipart=0; ipart<pStack->GetNtrack(); ++ipart){
415 TParticle *part=pStack->Particle(ipart);
b2a297fa 416// printf("Particle %d\n",part->GetPdgCode());
417 if (part->GetPdgCode()!=fIdMCMother || part->GetNDaughters()!=2) continue;
418 TParticle *d1=pStack->Particle(part->GetFirstDaughter());
419 TParticle *d2=pStack->Particle(part->GetLastDaughter());
420 TParticle *dP=0;
421 TParticle *dN=0;
422 if (fPDG->GetParticle(d1->GetPdgCode())->Charge()>0){
423 dP=d1;
424 dN=d2;
425 }else{
426 dP=d2;
427 dN=d1;
428 }
429 if ( dP->GetPdgCode()!=fIdMCDaughterP || dN->GetPdgCode()!=fIdMCDaughterN ) continue;
430 v.SetPxPyPzE(part->Px(),part->Py(),part->Pz(),part->Energy());
431 fHist->Fill("MC","JpsiMCPt",part->Pt());
432 fHist->Fill("MC","dndy",v.Rapidity());
433 fHist->Fill("MC","dndyPt",v.Rapidity(),part->Pt());
434 fHist->Fill("MC","e-Pt",dN->Pt());
435 fHist->Fill("MC","e+Pt",dP->Pt());
436 //e+ e- inv mass
437 TLorentzVector vE;
438 vE.SetPxPyPzE(dN->Px(),dN->Py(),dN->Pz(),dN->Energy());
439 TLorentzVector vP;
440 vP.SetPxPyPzE(dP->Px(),dP->Py(),dP->Pz(),dP->Energy());
441 fHist->Fill("MC","mass",(vE+vP).M());
442
443
444 //cuts
445 if (!fKineCutsMother->IsSelected(part)) continue;
446 if (!fKineCutsLegs->IsSelected(d1) || !fKineCutsLegs->IsSelected(d2) ) continue;
447
448 v.SetPxPyPzE(part->Px(),part->Py(),part->Pz(),part->Energy());
449 fHist->Fill("MCcut","JpsiMCPt",part->Pt());
450 fHist->Fill("MCcut","dndy",v.Rapidity());
451 fHist->Fill("MCcut","dndyPt",v.Rapidity(),part->Pt());
452 fHist->Fill("MCcut","e-Pt",dN->Pt());
453 fHist->Fill("MCcut","e+Pt",dP->Pt());
454 }
455}
456void AliAnalysisTaskDielectronEfficiency::SetupDefaultCuts(Int_t type)
457{
458 //
459 // setup standard ESD track cuts
460 //
461
462 if (type==0){
463 //ESD cuts
464 fESDtrackCuts->SetMaxDCAToVertexZ(3.0);
465 fESDtrackCuts->SetMaxDCAToVertexXY(3.0);
466 fESDtrackCuts->SetRequireTPCRefit(kTRUE);
467 fESDtrackCuts->SetRequireITSRefit(kTRUE);
468 fESDtrackCuts->SetAcceptKinkDaughters(kFALSE);
469 fESDtrackCuts->SetClusterRequirementITS(AliESDtrackCuts::kSPD,AliESDtrackCuts::kAny);
470
471 fESDtrackCuts->SetMinNClustersTPC(50);
472 fESDtrackCuts->SetMaxChi2PerClusterTPC(4);
473
474 //MC cuts
475 fKineCutsLegs->SetEtaRange(-0.9,0.9);
476 fKineCutsMother->SetRapRange(-0.9,0.9);
477 } else if (type==1) {
478// fESDtrackCuts->SetMaxCovDiagonalElements(2, 2, .5, .5, 2);
479 fESDtrackCuts->SetMaxDCAToVertexZ(3.0);
480 fESDtrackCuts->SetMaxDCAToVertexXY(3.0);
481 fESDtrackCuts->SetRequireTPCRefit(kTRUE);
482 fESDtrackCuts->SetRequireITSRefit(kTRUE);
483 fESDtrackCuts->SetAcceptKinkDaughters(kFALSE);
484 fESDtrackCuts->SetClusterRequirementITS(AliESDtrackCuts::kSPD,AliESDtrackCuts::kAny);
485
486 fESDtrackCuts->SetMinNClustersTPC(50);
487 fESDtrackCuts->SetMaxChi2PerClusterTPC(4);
488
489 //MC cuts
490// fKineCutsLegs->SetEtaRange(-0.9,0.9);
491// fKineCutsMother->SetRapRange(-0.9,0.9);
492
493 }
494}
495
496//===================================================================================
497void AliAnalysisTaskDielectronEfficiency::Terminate(Option_t *) {
498 //
499 // Called once at the end of the query
500 //
501
502
503 AliDielectronHistos *hist=new AliDielectronHistos;
504 hist->SetHistogramList(*(THashList*)GetOutputData(0));
505
506 if (hist->GetHistogram("Event","NEvents")){
507 //get number of events
508 Double_t nev=hist->GetHistogram("Event","NEvents")->GetBinContent(1);
509 //
510 //normalise dndy histograms
511 //
512 hist->GetHistogram("DataSameMother","dndy")->Scale(1./nev);
513 hist->GetHistogram("MC","dndy")->Scale(1./nev);
514 hist->GetHistogram("DataCuts","dndy")->Scale(1./nev);
515 hist->GetHistogram("DataTRDCuts","dndy")->Scale(1./nev);
516
517 //
518 // create the efficiency histograms
519 //
520 // hEffTracking/2D only tracking effects, no esd cuts
521 // hEffESDCuts tracking plus ESD cuts
522 // hEffTRDCuts tracking plus ESD plus TRD cuts
523 //
524 TH1F *hEffTracking=(TH1F*)hist->GetHistogram("DataSameMother","JpsiMCPt")->Clone("Efficiency");
525 hEffTracking->Divide(hist->GetHistogram("MCcut","JpsiMCPt"));
526 hEffTracking->SetTitle("Efficiencies");
527 hist->UserHistogram("DataSameMother",hEffTracking);
528
529 TH1F *hEffESDCuts=(TH1F*)hist->GetHistogram("DataCuts","JpsiMCPt")->Clone("Efficiency");
530 hEffESDCuts->Divide(hist->GetHistogram("MCcut","JpsiMCPt"));
531 hEffTracking->SetTitle("Efficiencies");
532 hist->UserHistogram("DataCuts",hEffESDCuts);
533
534 TH1F *hEffTRDCuts=(TH1F*)hist->GetHistogram("DataTRDCuts","JpsiMCPt")->Clone("Efficiency");
535 hEffTRDCuts->Divide(hist->GetHistogram("MCcut","JpsiMCPt"));
536 hEffTRDCuts->SetTitle("Efficiencies");
537 hist->UserHistogram("DataTRDCuts",hEffTRDCuts);
538
539 hist->DrawSame("Efficiency");
540
541 //2D efficiencies
542 TH2F *hEffTracking2D=(TH2F*)hist->GetHistogram("DataSameMother","dndyPtMC")->Clone("2DEfficiency");
543 hEffTracking2D->Divide(hist->GetHistogram("MCcut","dndyPt"));
544 hEffTracking2D->SetTitle("2D Efficiency - tracking");
545 hist->UserHistogram("DataSameMother",hEffTracking2D);
546
547 TH2F *hEffESDCuts2D=(TH2F*)hist->GetHistogram("DataCuts","dndyPtMC")->Clone("2DEfficiency");
548 hEffESDCuts2D->Divide(hist->GetHistogram("MCcut","dndyPt"));
549 hEffESDCuts2D->SetTitle("2D Efficiency - quality cuts");
550 hist->UserHistogram("DataCuts",hEffESDCuts2D);
551
552 TH2F *hEffTRDCuts2D=(TH2F*)hist->GetHistogram("DataTRDCuts","dndyPtMC")->Clone("2DEfficiency");
553 hEffTRDCuts2D->Divide(hist->GetHistogram("MCcut","dndyPt"));
554 hEffTRDCuts2D->SetTitle("2D Efficiency - quality+TRD cuts");
555 hist->UserHistogram("DataTRDCuts",hEffTRDCuts2D);
556
557//
558 // Draw all histograms of all histogram classes
559 // Use the Draw functionality of AliDielectronHistos
560 //
561 hist->Draw();
562
563 //
564 // Draw all histograms with the same name of all classes into one canvas
565 // Use the Draw functionality of AliDielectronHistos
566 //
567 hist->DrawSame("JpsiMCPt");
568 }
569
570 PostData(0, const_cast<THashList*>(hist->GetHistogramList()));
571}
572