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Added ptHard to the information in the AliAODMCHeader, filled in the AODHandler
[u/mrichter/AliRoot.git] / PWG4 / PartCorrDep / AliAnaPi0.cxx
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1c5acb87 1/**************************************************************************
2 * Copyright(c) 1998-1999, 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/* $Id: $ */
16
17//_________________________________________________________________________
18// Class to collect two-photon invariant mass distributions for
19// extractin raw pi0 yield.
20//
21//-- Author: Dmitri Peressounko (RRC "KI")
22//-- Adapted to PartCorr frame by Lamia Benhabib (SUBATECH)
23//-- and Gustavo Conesa (INFN-Frascati)
24//_________________________________________________________________________
25
26
27// --- ROOT system ---
28#include "TH3.h"
29//#include "Riostream.h"
6639984f 30#include "TCanvas.h"
31#include "TPad.h"
32#include "TROOT.h"
477d6cee 33#include "TClonesArray.h"
34#include "TObjString.h"
1c5acb87 35
36//---- AliRoot system ----
37#include "AliAnaPi0.h"
38#include "AliCaloTrackReader.h"
39#include "AliCaloPID.h"
6639984f 40#include "AliStack.h"
477d6cee 41#include "AliFidutialCut.h"
42#include "TParticle.h"
43#include "AliAODCaloCluster.h"
44#include "AliVEvent.h"
1c5acb87 45
46#ifdef __PHOSGEO__
47 #include "AliPHOSGeoUtils.h"
48#endif
49
50ClassImp(AliAnaPi0)
51
52//________________________________________________________________________________________________________________________________________________
53AliAnaPi0::AliAnaPi0() : AliAnaPartCorrBaseClass(),
54fNCentrBin(0),fNZvertBin(0),fNrpBin(0),
55fNPID(0),fNmaxMixEv(0), fZvtxCut(0.),fCalorimeter(""),
56fEventsList(0x0), fhEtalon(0x0),
57fhRe1(0x0),fhMi1(0x0),fhRe2(0x0),fhMi2(0x0),fhRe3(0x0),fhMi3(0x0),fhEvents(0x0),
58fhPrimPt(0x0), fhPrimAccPt(0x0), fhPrimY(0x0), fhPrimAccY(0x0), fhPrimPhi(0x0), fhPrimAccPhi(0x0)
59{
60//Default Ctor
61 InitParameters();
62
63}
64
65//________________________________________________________________________________________________________________________________________________
66AliAnaPi0::AliAnaPi0(const AliAnaPi0 & ex) : AliAnaPartCorrBaseClass(ex),
67fNCentrBin(ex.fNCentrBin),fNZvertBin(ex.fNZvertBin),fNrpBin(ex.fNrpBin),
68fNPID(ex.fNPID),fNmaxMixEv(ex.fNmaxMixEv),fZvtxCut(ex.fZvtxCut), fCalorimeter(ex.fCalorimeter),
69fEventsList(ex.fEventsList), fhEtalon(ex.fhEtalon),
70fhRe1(ex.fhRe1),fhMi1(ex.fhMi1),fhRe2(ex.fhRe2),fhMi2(ex.fhMi2),fhRe3(ex.fhRe3),fhMi3(ex.fhMi3),fhEvents(ex.fhEvents),
71fhPrimPt(ex.fhPrimPt), fhPrimAccPt(ex.fhPrimAccPt), fhPrimY(ex.fhPrimY),
72fhPrimAccY(ex.fhPrimAccY), fhPrimPhi(ex.fhPrimPhi), fhPrimAccPhi(ex.fhPrimAccPhi)
73{
477d6cee 74 // cpy ctor
75 //Do not need it
1c5acb87 76}
77
78//________________________________________________________________________________________________________________________________________________
79AliAnaPi0 & AliAnaPi0::operator = (const AliAnaPi0 & ex)
80{
477d6cee 81 // assignment operator
82
83 if(this == &ex)return *this;
84 ((AliAnaPartCorrBaseClass *)this)->operator=(ex);
85
86 fNCentrBin = ex.fNCentrBin ; fNZvertBin = ex.fNZvertBin ; fNrpBin = ex.fNrpBin ;
87 fNPID = ex.fNPID ; fNmaxMixEv = ex.fNmaxMixEv ; fZvtxCut = ex.fZvtxCut ; fCalorimeter = ex.fCalorimeter ;
88 fEventsList = ex.fEventsList ; fhEtalon = ex.fhEtalon ;
89 fhRe1 = ex.fhRe1 ; fhMi1 = ex.fhMi1 ; fhRe2 = ex.fhRe2 ; fhMi2 = ex.fhMi2 ;
90 fhRe3 = ex.fhRe3 ; fhMi3 = ex.fhMi3 ; fhEvents = ex.fhEvents ;
91 fhPrimPt = ex.fhPrimPt ; fhPrimAccPt = ex.fhPrimAccPt ; fhPrimY = ex.fhPrimY ;
92 fhPrimAccY = ex.fhPrimAccY ; fhPrimPhi = ex.fhPrimPhi ; fhPrimAccPhi = ex.fhPrimAccPhi ;
93
94 return *this;
95
1c5acb87 96}
97
98//________________________________________________________________________________________________________________________________________________
99AliAnaPi0::~AliAnaPi0() {
477d6cee 100 // Remove event containers
101 if(fEventsList){
102 for(Int_t ic=0; ic<fNCentrBin; ic++){
103 for(Int_t iz=0; iz<fNZvertBin; iz++){
104 for(Int_t irp=0; irp<fNrpBin; irp++){
105 fEventsList[ic*fNZvertBin*fNrpBin+iz*fNrpBin+irp]->Delete() ;
106 delete fEventsList[ic*fNZvertBin*fNrpBin+iz*fNrpBin+irp] ;
1c5acb87 107 }
477d6cee 108 }
109 }
110 delete[] fEventsList;
111 fEventsList=0 ;
112 }
113
1c5acb87 114#ifdef __PHOSGEO__
477d6cee 115 if(fPHOSGeo) delete fPHOSGeo ;
1c5acb87 116#endif
117}
118
119//________________________________________________________________________________________________________________________________________________
120void AliAnaPi0::InitParameters()
121{
122//Init parameters when first called the analysis
123//Set default parameters
a3aebfff 124 SetInputAODName("PWG4Particle");
125
126 AddToHistogramsName("AnaPi0_");
127
477d6cee 128 fNCentrBin = 1;
129 fNZvertBin = 1;
130 fNrpBin = 1;
131 fNPID = 9;
132 fNmaxMixEv = 10;
133 fZvtxCut = 40;
134 fCalorimeter = "PHOS";
1c5acb87 135}
136//________________________________________________________________________________________________________________________________________________
137void AliAnaPi0::Init()
138{
477d6cee 139 //Init some data members needed in analysis
140
141 //Histograms binning and range
142 if(!fhEtalon){ // p_T alpha d m_gg
143 fhEtalon = new TH3D("hEtalon","Histo with binning parameters",50,0.,25.,10,0.,1.,200,0.,1.) ;
144 fhEtalon->SetXTitle("P_{T} (GeV)") ;
145 fhEtalon->SetYTitle("#alpha") ;
146 fhEtalon->SetZTitle("m_{#gamma#gamma} (GeV)") ;
147 }
148
2e557d1c 149}
1c5acb87 150
2e557d1c 151//________________________________________________________________________________________________________________________________________________
152TList * AliAnaPi0::GetCreateOutputObjects()
153{
477d6cee 154 // Create histograms to be saved in output file and
155 // store them in fOutputContainer
156
157 //create event containers
158 fEventsList = new TList*[fNCentrBin*fNZvertBin*fNrpBin] ;
1c5acb87 159
477d6cee 160 for(Int_t ic=0; ic<fNCentrBin; ic++){
161 for(Int_t iz=0; iz<fNZvertBin; iz++){
162 for(Int_t irp=0; irp<fNrpBin; irp++){
163 fEventsList[ic*fNZvertBin*fNrpBin+iz*fNrpBin+irp] = new TList() ;
164 }
165 }
166 }
167
168 //If Geometry library loaded, do geometry selection during analysis.
1c5acb87 169#ifdef __PHOSGEO__
a3aebfff 170 printf("AliAnaPi0::GetCreateOutputObjects() - PHOS geometry initialized!\n");
477d6cee 171 fPHOSGeo = new AliPHOSGeoUtils("PHOSgeo") ;
1c5acb87 172#endif
477d6cee 173
174 TList * outputContainer = new TList() ;
175 outputContainer->SetName(GetName());
176
50305ae9 177 fhRe1 = new TH3D*[fNCentrBin*fNPID] ;
178 fhRe2 = new TH3D*[fNCentrBin*fNPID] ;
179 fhRe3 = new TH3D*[fNCentrBin*fNPID] ;
180 fhMi1 = new TH3D*[fNCentrBin*fNPID] ;
181 fhMi2 = new TH3D*[fNCentrBin*fNPID] ;
182 fhMi3 = new TH3D*[fNCentrBin*fNPID] ;
477d6cee 183
184 char key[255] ;
185 char title[255] ;
186
187 for(Int_t ic=0; ic<fNCentrBin; ic++){
188 for(Int_t ipid=0; ipid<fNPID; ipid++){
189
190 //Distance to bad module 1
191 sprintf(key,"hRe_cen%d_pid%d_dist1",ic,ipid) ;
192 sprintf(title,"Real m_{#gamma#gamma} distr. for centrality=%d and PID=%d",ic,ipid) ;
193
194 fhEtalon->Clone(key);
195 fhRe1[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ;
196 fhRe1[ic*fNPID+ipid]->SetName(key) ;
197 fhRe1[ic*fNPID+ipid]->SetTitle(title) ;
198 outputContainer->Add(fhRe1[ic*fNPID+ipid]) ;
199
200 sprintf(key,"hMi_cen%d_pid%d_dist1",ic,ipid) ;
201 sprintf(title,"Mixed m_{#gamma#gamma} distr. for centrality=%d and PID=%d",ic,ipid) ;
202 fhMi1[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ;
203 fhMi1[ic*fNPID+ipid]->SetName(key) ;
204 fhMi1[ic*fNPID+ipid]->SetTitle(title) ;
205 outputContainer->Add(fhMi1[ic*fNPID+ipid]) ;
206
207 //Distance to bad module 2
208 sprintf(key,"hRe_cen%d_pid%d_dist2",ic,ipid) ;
209 sprintf(title,"Real m_{#gamma#gamma} distr. for centrality=%d and PID=%d",ic,ipid) ;
210 fhRe2[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ;
211 fhRe2[ic*fNPID+ipid]->SetName(key) ;
212 fhRe2[ic*fNPID+ipid]->SetTitle(title) ;
213 outputContainer->Add(fhRe2[ic*fNPID+ipid]) ;
214
215 sprintf(key,"hMi_cen%d_pid%d_dist2",ic,ipid) ;
216 sprintf(title,"Mixed m_{#gamma#gamma} distr. for centrality=%d and PID=%d",ic,ipid) ;
217 fhMi2[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ;
218 fhMi2[ic*fNPID+ipid]->SetName(key) ;
219 fhMi2[ic*fNPID+ipid]->SetTitle(title) ;
220 outputContainer->Add(fhMi2[ic*fNPID+ipid]) ;
221
222 //Distance to bad module 3
223 sprintf(key,"hRe_cen%d_pid%d_dist3",ic,ipid) ;
224 sprintf(title,"Real m_{#gamma#gamma} distr. for centrality=%d and PID=%d",ic,ipid) ;
225 fhRe3[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ;
226 fhRe3[ic*fNPID+ipid]->SetName(key) ;
227 fhRe3[ic*fNPID+ipid]->SetTitle(title) ;
228 outputContainer->Add(fhRe3[ic*fNPID+ipid]) ;
229
230 sprintf(key,"hMi_cen%d_pid%d_dist3",ic,ipid) ;
231 sprintf(title,"Mixed m_{#gamma#gamma} distr. for centrality=%d and PID=%d",ic,ipid) ;
232 fhMi3[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ;
233 fhMi3[ic*fNPID+ipid]->SetName(key) ;
234 fhMi3[ic*fNPID+ipid]->SetTitle(title) ;
235 outputContainer->Add(fhMi3[ic*fNPID+ipid]) ;
1c5acb87 236 }
477d6cee 237 }
238
239
240 fhEvents=new TH3D("hEvents","Number of events",fNCentrBin,0.,1.*fNCentrBin,
241 fNZvertBin,0.,1.*fNZvertBin,fNrpBin,0.,1.*fNrpBin) ;
242 outputContainer->Add(fhEvents) ;
243
244 //Histograms filled only if MC data is requested
245 if(IsDataMC() || (GetReader()->GetDataType() == AliCaloTrackReader::kMC) ){
246 if(fhEtalon->GetXaxis()->GetXbins() && fhEtalon->GetXaxis()->GetXbins()->GetSize()){ //Variable bin size
247 fhPrimPt = new TH1D("hPrimPt","Primary pi0 pt",fhEtalon->GetXaxis()->GetNbins(),fhEtalon->GetXaxis()->GetXbins()->GetArray()) ;
248 fhPrimAccPt = new TH1D("hPrimAccPt","Primary pi0 pt with both photons in acceptance",fhEtalon->GetXaxis()->GetNbins(),
249 fhEtalon->GetXaxis()->GetXbins()->GetArray()) ;
250 }
251 else{
252 fhPrimPt = new TH1D("hPrimPt","Primary pi0 pt",fhEtalon->GetXaxis()->GetNbins(),fhEtalon->GetXaxis()->GetXmin(),fhEtalon->GetXaxis()->GetXmax()) ;
253 fhPrimAccPt = new TH1D("hPrimAccPt","Primary pi0 pt with both photons in acceptance",
254 fhEtalon->GetXaxis()->GetNbins(),fhEtalon->GetXaxis()->GetXmin(),fhEtalon->GetXaxis()->GetXmax()) ;
255 }
256 outputContainer->Add(fhPrimPt) ;
257 outputContainer->Add(fhPrimAccPt) ;
258
259 fhPrimY = new TH1D("hPrimaryRapidity","Rapidity of primary pi0",100,-5.,5.) ;
260 outputContainer->Add(fhPrimY) ;
261
262 fhPrimAccY = new TH1D("hPrimAccRapidity","Rapidity of primary pi0",100,-5.,5.) ;
263 outputContainer->Add(fhPrimAccY) ;
264
265 fhPrimPhi = new TH1D("hPrimaryPhi","Azimithal of primary pi0",180,0.,360.) ;
266 outputContainer->Add(fhPrimPhi) ;
267
268 fhPrimAccPhi = new TH1D("hPrimAccPhi","Azimithal of primary pi0 with accepted daughters",180,-0.,360.) ;
269 outputContainer->Add(fhPrimAccPhi) ;
270 }
a3aebfff 271
477d6cee 272 //Save parameters used for analysis
273 TString parList ; //this will be list of parameters used for this analysis.
274 char onePar[255] ;
275 sprintf(onePar,"--- AliAnaPi0 ---\n") ;
276 parList+=onePar ;
277 sprintf(onePar,"Number of bins in Centrality: %d \n",fNCentrBin) ;
278 parList+=onePar ;
279 sprintf(onePar,"Number of bins in Z vert. pos: %d \n",fNZvertBin) ;
280 parList+=onePar ;
281 sprintf(onePar,"Number of bins in Reac. Plain: %d \n",fNrpBin) ;
282 parList+=onePar ;
283 sprintf(onePar,"Depth of event buffer: %d \n",fNmaxMixEv) ;
284 parList+=onePar ;
285 sprintf(onePar,"Number of different PID used: %d \n",fNPID) ;
286 parList+=onePar ;
287 sprintf(onePar,"Cuts: \n") ;
288 parList+=onePar ;
289 sprintf(onePar,"Z vertex position: -%f < z < %f \n",fZvtxCut,fZvtxCut) ;
290 parList+=onePar ;
291 sprintf(onePar,"Calorimeter: %s \n",fCalorimeter.Data()) ;
292 parList+=onePar ;
293
294 TObjString *oString= new TObjString(parList) ;
295 outputContainer->Add(oString);
296
297 return outputContainer;
1c5acb87 298}
299
300//_________________________________________________________________________________________________________________________________________________
301void AliAnaPi0::Print(const Option_t * /*opt*/) const
302{
477d6cee 303 //Print some relevant parameters set for the analysis
a3aebfff 304 printf("**** Print %s %s ****\n", GetName(), GetTitle() ) ;
477d6cee 305 AliAnaPartCorrBaseClass::Print(" ");
a3aebfff 306
477d6cee 307 printf("Number of bins in Centrality: %d \n",fNCentrBin) ;
308 printf("Number of bins in Z vert. pos: %d \n",fNZvertBin) ;
309 printf("Number of bins in Reac. Plain: %d \n",fNrpBin) ;
310 printf("Depth of event buffer: %d \n",fNmaxMixEv) ;
311 printf("Number of different PID used: %d \n",fNPID) ;
312 printf("Cuts: \n") ;
313 printf("Z vertex position: -%2.3f < z < %2.3f \n",fZvtxCut,fZvtxCut) ;
314 printf("------------------------------------------------------\n") ;
1c5acb87 315}
316
317
318//____________________________________________________________________________________________________________________________________________________
6639984f 319void AliAnaPi0::MakeAnalysisFillHistograms()
1c5acb87 320{
477d6cee 321 //Process one event and extract photons from AOD branch
322 // filled with AliAnaPhoton and fill histos with invariant mass
323
324 //Apply some cuts on event: vertex position and centrality range
325 Int_t iRun=(GetReader()->GetInputEvent())->GetRunNumber() ;
326 if(IsBadRun(iRun)) return ;
327
328 Double_t vert[]={0,0,0} ; //vertex ;
329 GetReader()->GetVertex(vert);
330 if(vert[2]<-fZvtxCut || vert[2]> fZvtxCut) return ; //Event can not be used (vertex, centrality,... cuts not fulfilled)
331
332 //Get Centrality and calculate centrality bin
333 //Does not exist in ESD yet???????
334 Int_t curCentrBin=0 ;
335
336 //Get Reaction Plain position and calculate RP bin
337 //does not exist in ESD yet????
338 Int_t curRPBin=0 ;
339
340 Int_t curZvertBin=(Int_t)(0.5*fNZvertBin*(vert[2]+fZvtxCut)/fZvtxCut) ;
341
342 fhEvents->Fill(curCentrBin+0.5,curZvertBin+0.5,curRPBin+0.5) ;
343
344 Int_t nPhot = GetInputAODBranch()->GetEntriesFast() ;
a3aebfff 345 if(GetDebug() > 1) printf("AliAnaPi0::MakeAnalysisFillHistograms() - Photon entries %d\n", nPhot);
477d6cee 346
347 for(Int_t i1=0; i1<nPhot-1; i1++){
348 AliAODPWG4Particle * p1 = (AliAODPWG4Particle*) (GetInputAODBranch()->At(i1)) ;
349 TLorentzVector photon1(p1->Px(),p1->Py(),p1->Pz(),p1->E());
350 for(Int_t i2=i1+1; i2<nPhot; i2++){
351 AliAODPWG4Particle * p2 = (AliAODPWG4Particle*) (GetInputAODBranch()->At(i2)) ;
352 TLorentzVector photon2(p2->Px(),p2->Py(),p2->Pz(),p2->E());
353 Double_t m = (photon1 + photon2).M() ;
354 Double_t pt = (photon1 + photon2).Pt();
355 Double_t a = TMath::Abs(p1->E()-p2->E())/(p1->E()+p2->E()) ;
356 if(GetDebug() > 2)
a3aebfff 357 printf("AliAnaPi0::MakeAnalysisFillHistograms() - Current Event: pT: photon1 %2.2f, photon2 %2.2f; Pair: pT %2.2f, mass %2.3f, a %f2.3\n",
477d6cee 358 p1->Pt(), p2->Pt(), pt,m,a);
359 for(Int_t ipid=0; ipid<fNPID; ipid++)
360 {
361 if((p1->IsPIDOK(ipid,AliCaloPID::kPhoton)) && (p2->IsPIDOK(ipid,AliCaloPID::kPhoton))){
362 fhRe1[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ;
363 if(p1->DistToBad()>0 && p2->DistToBad()>0){
364 fhRe2[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ;
365 if(p1->DistToBad()>1 && p2->DistToBad()>1){
366 fhRe3[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ;
367 }
368 }
369 }
370 }
371 }
372 }
373
374 //Fill mixed
375
376 TList * evMixList=fEventsList[curCentrBin*fNZvertBin*fNrpBin+curZvertBin*fNrpBin+curRPBin] ;
377 Int_t nMixed = evMixList->GetSize() ;
378 for(Int_t ii=0; ii<nMixed; ii++){
379 TClonesArray* ev2= (TClonesArray*) (evMixList->At(ii));
380 Int_t nPhot2=ev2->GetEntriesFast() ;
381 Double_t m = -999;
a3aebfff 382 if(GetDebug() > 1) printf("AliAnaPi0::MakeAnalysisFillHistograms() - Mixed event %d photon entries %d\n", ii, nPhot);
477d6cee 383
384 for(Int_t i1=0; i1<nPhot; i1++){
385 AliAODPWG4Particle * p1 = (AliAODPWG4Particle*) (GetInputAODBranch()->At(i1)) ;
386 TLorentzVector photon1(p1->Px(),p1->Py(),p1->Pz(),p1->E());
387 for(Int_t i2=0; i2<nPhot2; i2++){
388 AliAODPWG4Particle * p2 = (AliAODPWG4Particle*) (ev2->At(i2)) ;
1c5acb87 389
477d6cee 390 TLorentzVector photon2(p2->Px(),p2->Py(),p2->Pz(),p2->E());
391 m = (photon1+photon2).M() ;
392 Double_t pt = (photon1 + photon2).Pt();
393 Double_t a = TMath::Abs(p1->E()-p2->E())/(p1->E()+p2->E()) ;
394 if(GetDebug() > 2)
a3aebfff 395 printf("AliAnaPi0::MakeAnalysisFillHistograms() - Mixed Event: pT: photon1 %2.2f, photon2 %2.2f; Pair: pT %2.2f, mass %2.3f, a %f2.3\n",
477d6cee 396 p1->Pt(), p2->Pt(), pt,m,a);
397 for(Int_t ipid=0; ipid<fNPID; ipid++){
398 if((p1->IsPIDOK(ipid,AliCaloPID::kPhoton)) && (p2->IsPIDOK(ipid,AliCaloPID::kPhoton))){
399 fhMi1[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ;
400 if(p1->DistToBad()>0 && p2->DistToBad()>0){
401 fhMi2[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ;
402 if(p1->DistToBad()>1 && p2->DistToBad()>1){
403 fhMi3[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ;
404 }
405
406 }
407 }
1c5acb87 408 }
477d6cee 409 }
410 }
411 }
412
413 TClonesArray *currentEvent = new TClonesArray(*GetInputAODBranch());
414 //Add current event to buffer and Remove redandant events
415 if(currentEvent->GetEntriesFast()>0){
416 evMixList->AddFirst(currentEvent) ;
417 currentEvent=0 ; //Now list of particles belongs to buffer and it will be deleted with buffer
418 if(evMixList->GetSize()>=fNmaxMixEv)
419 {
420 TClonesArray * tmp = (TClonesArray*) (evMixList->Last()) ;
421 evMixList->RemoveLast() ;
422 delete tmp ;
423 }
424 }
425 else{ //empty event
426 delete currentEvent ;
427 currentEvent=0 ;
428 }
429
430 //Acceptance
431 AliStack * stack = GetMCStack();
432 if(stack && (IsDataMC() || (GetReader()->GetDataType() == AliCaloTrackReader::kMC)) ){
433 for(Int_t i=0 ; i<stack->GetNprimary(); i++){
434 TParticle * prim = stack->Particle(i) ;
435 if(prim->GetPdgCode() == 111){
436 Double_t pi0Pt = prim->Pt() ;
437 //printf("pi0, pt %2.2f\n",pi0Pt);
438 if(prim->Energy() == TMath::Abs(prim->Pz())) continue ; //Protection against floating point exception
439 Double_t pi0Y = 0.5*TMath::Log((prim->Energy()-prim->Pz())/(prim->Energy()+prim->Pz())) ;
440 Double_t phi = TMath::RadToDeg()*prim->Phi() ;
441 if(TMath::Abs(pi0Y) < 0.5){
442 fhPrimPt->Fill(pi0Pt) ;
1c5acb87 443 }
477d6cee 444 fhPrimY ->Fill(pi0Y) ;
445 fhPrimPhi->Fill(phi) ;
1c5acb87 446
477d6cee 447 //Check if both photons hit Calorimeter
448 Int_t iphot1=prim->GetFirstDaughter() ;
449 Int_t iphot2=prim->GetLastDaughter() ;
450 if(iphot1>-1 && iphot1<stack->GetNtrack() && iphot2>-1 && iphot2<stack->GetNtrack()){
451 TParticle * phot1 = stack->Particle(iphot1) ;
452 TParticle * phot2 = stack->Particle(iphot2) ;
453 if(phot1 && phot2 && phot1->GetPdgCode()==22 && phot2->GetPdgCode()==22){
454 //printf("2 photons: photon 1: pt %2.2f, phi %3.2f, eta %1.2f; photon 2: pt %2.2f, phi %3.2f, eta %1.2f\n",
455 // phot1->Pt(), phot1->Phi()*180./3.1415, phot1->Eta(), phot2->Pt(), phot2->Phi()*180./3.1415, phot2->Eta());
456 Bool_t inacceptance = kFALSE;
1c5acb87 457#ifdef __PHOSGEO__
477d6cee 458 Int_t mod ;
459 Double_t x,z ;
460 if(fCalorimeter == "PHOS" && fPHOSGeo->ImpactOnEmc(phot1,mod,z,x) && fPHOSGeo->ImpactOnEmc(phot1,mod,z,x))
461 inacceptance = kTRUE;
462 //printf("In REAL PHOS acceptance? %d\n",inacceptance);
1c5acb87 463#else
477d6cee 464 TLorentzVector lv1, lv2;
465 phot1->Momentum(lv1);
466 phot2->Momentum(lv2);
467 if(GetFidutialCut()->IsInFidutialCut(lv1,fCalorimeter) && GetFidutialCut()->IsInFidutialCut(lv2,fCalorimeter))
468 inacceptance = kTRUE ;
469 //printf("In %s fidutial cut acceptance? %d\n",fCalorimeter.Data(),inacceptance);
1c5acb87 470#endif
477d6cee 471 if(inacceptance){
472 fhPrimAccPt->Fill(pi0Pt) ;
473 fhPrimAccPhi->Fill(phi) ;
474 fhPrimAccY->Fill(pi0Y) ;
475 }//Accepted
476 }// 2 photons
477 }//Check daughters exist
478 }// Primary pi0
479 }//loop on primaries
480 }//stack exists and data is MC
481
1c5acb87 482}
483
a5cc4f03 484//________________________________________________________________________
485void AliAnaPi0::ReadHistograms(TList* outputList)
486{
487 // Needed when Terminate is executed in distributed environment
488 // Refill analysis histograms of this class with corresponding histograms in output list.
489
490 // Histograms of this analsys are kept in the same list as other analysis, recover the position of
50305ae9 491 // the first one and then add the next.
a5cc4f03 492 Int_t index = outputList->IndexOf(outputList->FindObject(GetAddedHistogramsStringToName()+"hRe_cen0_pid0_dist1"));
493
50305ae9 494 if(!fhRe1) fhRe1 = new TH3D*[fNCentrBin*fNPID] ;
495 if(!fhRe2) fhRe2 = new TH3D*[fNCentrBin*fNPID] ;
496 if(!fhRe3) fhRe3 = new TH3D*[fNCentrBin*fNPID] ;
497 if(!fhMi1) fhMi1 = new TH3D*[fNCentrBin*fNPID] ;
498 if(!fhMi2) fhMi2 = new TH3D*[fNCentrBin*fNPID] ;
499 if(!fhMi3) fhMi3 = new TH3D*[fNCentrBin*fNPID] ;
500
a5cc4f03 501 for(Int_t ic=0; ic<fNCentrBin; ic++){
502 for(Int_t ipid=0; ipid<fNPID; ipid++){
503 fhRe1[ic*fNPID+ipid] = (TH3D*) outputList->At(index++);
504 fhMi1[ic*fNPID+ipid] = (TH3D*) outputList->At(index++);
505 fhRe2[ic*fNPID+ipid] = (TH3D*) outputList->At(index++);
506 fhMi2[ic*fNPID+ipid] = (TH3D*) outputList->At(index++);
507 fhRe3[ic*fNPID+ipid] = (TH3D*) outputList->At(index++);
508 fhMi3[ic*fNPID+ipid] = (TH3D*) outputList->At(index++);
509 }
510 }
511
512 fhEvents = (TH3D *) outputList->At(index++);
513
514 //Histograms filled only if MC data is requested
515 if(IsDataMC() || (GetReader()->GetDataType() == AliCaloTrackReader::kMC) ){
516 fhPrimPt = (TH1D*) outputList->At(index++);
517 fhPrimAccPt = (TH1D*) outputList->At(index++);
518 fhPrimY = (TH1D*) outputList->At(index++);
519 fhPrimAccY = (TH1D*) outputList->At(index++);
520 fhPrimPhi = (TH1D*) outputList->At(index++);
521 fhPrimAccPhi = (TH1D*) outputList->At(index);
522 }
523
524}
525
526
6639984f 527//____________________________________________________________________________________________________________________________________________________
a5cc4f03 528void AliAnaPi0::Terminate(TList* outputList)
6639984f 529{
530 //Do some calculations and plots from the final histograms.
477d6cee 531
fbeaf916 532 printf(" *** %s Terminate:\n", GetName()) ;
a5cc4f03 533
534 //Recover histograms from output histograms list, needed for distributed analysis.
535 ReadHistograms(outputList);
536
2e557d1c 537 if (!fhRe1) {
a3aebfff 538 printf("AliAnaPi0::Terminate() - Error: Remote output histograms not imported in AliAnaPi0 object");
2e557d1c 539 return;
540 }
a5cc4f03 541
a3aebfff 542 printf("AliAnaPi0::Terminate() Mgg Real : %5.3f , RMS : %5.3f \n", fhRe1[0]->GetMean(), fhRe1[0]->GetRMS() ) ;
6639984f 543
71dd883b 544 char nameIM[128];
545 sprintf(nameIM,"AliAnaPi0_%s_cPt",fCalorimeter.Data());
546 TCanvas * cIM = new TCanvas(nameIM, "", 400, 10, 600, 700) ;
6639984f 547 cIM->Divide(2, 2);
548
549 cIM->cd(1) ;
550 //gPad->SetLogy();
551 TH1D * hIMAllPt = (TH1D*) fhRe1[0]->ProjectionZ();
552 hIMAllPt->SetLineColor(2);
553 hIMAllPt->SetTitle("No cut on p_{T, #gamma#gamma} ");
554 hIMAllPt->Draw();
555
556 cIM->cd(2) ;
557 TH3F * hRe1Pt5 = (TH3F*)fhRe1[0]->Clone("IMPt5");
558 hRe1Pt5->GetXaxis()->SetRangeUser(0,5);
559 TH1D * hIMPt5 = (TH1D*) hRe1Pt5->Project3D("z");
560 hIMPt5->SetLineColor(2);
561 hIMPt5->SetTitle("0 < p_{T, #gamma#gamma} < 5 GeV/c");
562 hIMPt5->Draw();
563
564 cIM->cd(3) ;
565 TH3F * hRe1Pt10 = (TH3F*)fhRe1[0]->Clone("IMPt10");
566 hRe1Pt10->GetXaxis()->SetRangeUser(5,10);
567 TH1D * hIMPt10 = (TH1D*) hRe1Pt10->Project3D("z");
568 hIMPt10->SetLineColor(2);
569 hIMPt10->SetTitle("5 < p_{T, #gamma#gamma} < 10 GeV/c");
570 hIMPt10->Draw();
571
572 cIM->cd(4) ;
573 TH3F * hRe1Pt20 = (TH3F*)fhRe1[0]->Clone("IMPt20");
574 hRe1Pt20->GetXaxis()->SetRangeUser(10,20);
575 TH1D * hIMPt20 = (TH1D*) hRe1Pt20->Project3D("z");
576 hIMPt20->SetLineColor(2);
577 hIMPt20->SetTitle("10 < p_{T, #gamma#gamma} < 20 GeV/c");
578 hIMPt20->Draw();
579
71dd883b 580 char nameIMF[128];
581 sprintf(nameIMF,"AliAnaPi0_%s_Mgg.eps",fCalorimeter.Data());
582 cIM->Print(nameIMF);
6639984f 583
71dd883b 584 char namePt[128];
585 sprintf(namePt,"AliAnaPi0_%s_cPt",fCalorimeter.Data());
586 TCanvas * cPt = new TCanvas(namePt, "", 400, 10, 600, 700) ;
6639984f 587 cPt->Divide(2, 2);
588
589 cPt->cd(1) ;
590 //gPad->SetLogy();
591 TH1D * hPt = (TH1D*) fhRe1[0]->Project3D("x");
592 hPt->SetLineColor(2);
593 hPt->SetTitle("No cut on M_{#gamma#gamma} ");
594 hPt->Draw();
595
596 cPt->cd(2) ;
597 TH3F * hRe1IM1 = (TH3F*)fhRe1[0]->Clone("PtIM1");
598 hRe1IM1->GetZaxis()->SetRangeUser(0.05,0.21);
599 TH1D * hPtIM1 = (TH1D*) hRe1IM1->Project3D("x");
600 hPtIM1->SetLineColor(2);
601 hPtIM1->SetTitle("0.05 < M_{#gamma#gamma} < 0.21 GeV/c^{2}");
602 hPtIM1->Draw();
603
604 cPt->cd(3) ;
605 TH3F * hRe1IM2 = (TH3F*)fhRe1[0]->Clone("PtIM2");
606 hRe1IM2->GetZaxis()->SetRangeUser(0.09,0.17);
607 TH1D * hPtIM2 = (TH1D*) hRe1IM2->Project3D("x");
608 hPtIM2->SetLineColor(2);
609 hPtIM2->SetTitle("0.09 < M_{#gamma#gamma} < 0.17 GeV/c^{2}");
610 hPtIM2->Draw();
611
612 cPt->cd(4) ;
613 TH3F * hRe1IM3 = (TH3F*)fhRe1[0]->Clone("PtIM3");
614 hRe1IM3->GetZaxis()->SetRangeUser(0.11,0.15);
615 TH1D * hPtIM3 = (TH1D*) hRe1IM1->Project3D("x");
616 hPtIM3->SetLineColor(2);
617 hPtIM3->SetTitle("0.11 < M_{#gamma#gamma} < 0.15 GeV/c^{2}");
618 hPtIM3->Draw();
619
71dd883b 620 char namePtF[128];
621 sprintf(namePtF,"AliAnaPi0_%s_Pt.eps",fCalorimeter.Data());
622 cPt->Print(namePtF);
1c5acb87 623
6639984f 624
625 char line[1024] ;
71dd883b 626 sprintf(line, ".!tar -zcf %s_%s.tar.gz *.eps", GetName(),fCalorimeter.Data()) ;
6639984f 627 gROOT->ProcessLine(line);
71dd883b 628 sprintf(line, ".!rm -fR AliAnaPi0_%s*.eps",fCalorimeter.Data());
6639984f 629 gROOT->ProcessLine(line);
630
71dd883b 631 printf(" AliAnaPi0::Terminate() - !! All the eps files are in %s_%s.tar.gz !!!\n", GetName(), fCalorimeter.Data());
1c5acb87 632
6639984f 633}
1c5acb87 634
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