PWG2/SPECTRA/AliAnalysisTaskCentral.cxx

   1 /*************************************************************************
   2 * Copyright(c) 1998-2008, 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 //  analysis task for azimuthal isotropic
  18 //  expansion in highly central collisions
  19 //  author: Cristian Andrei
  20 //          acristian@niham.nipne.ro
  21 //  ------------------------------------------
  22
  23 #include "TChain.h"
  24 #include "TTree.h"
  25 #include "TH1D.h"
  26 #include "TList.h"
  27 #include "TObjArray.h"
  28 #include "TString.h"
  29 #include "TFile.h"
  30 #include "TCanvas.h"
  31 #include "TLegend.h"
  32
  33 #include "AliAnalysisManager.h"
  34 #include "AliMCEvent.h"
  35 #include "AliMCEventHandler.h"
  36 #include "AliESDEvent.h"
  37 #include "AliESDInputHandler.h"
  38 #include "AliESDtrackCuts.h"
  39 #include "AliCFContainer.h"
  40 #include "AliAnalysisDataContainer.h"
  41 #include "AliAnalysisDataSlot.h"
  42
  43 #include "AliAnalysisCentralCutMC.h"
  44 #include "AliAnalysisCentralCutESD.h"
  45 #include "AliAnalysisCentralCutEvtMC.h"
  46 #include "AliAnalysisCentralCutEvtESD.h"
  47 #include "AliAnalysisCentralExtrapolate.h"
  48 #include "AliAnalysisTaskCentral.h"
  49
  50
  51 ClassImp(AliAnalysisTaskCentral)
  52
  53
  54 //________________________________________________________________________
  55 AliAnalysisTaskCentral::AliAnalysisTaskCentral(const char *name)
  56   : AliAnalysisTask(name, "")
  57   ,fESD(0), fMC(0)
  58   ,fNoEvt(0)
  59   ,fCFContainerPi(0)
  60   ,fCFContainerK(0)
  61   ,fCFContainerP(0)
  62   ,fSim(kFALSE)
  63   ,fOutList(NULL)
  64
  65 {
  66   // Constructor
  67         printf("AliAnalysisTaskCentral::AliAnalysisTaskCentral(const char *name)\n");
  68
  69   // Define input and output slots here
  70         DefineInput(0, TChain::Class());
  71
  72         DefineOutput(0, TList::Class());
  73
  74
  75         for(Int_t i=0; i<10; i++){
  76                 fCutsList[i] = 0;
  77     }
  78
  79         InitCuts(); //initialize the analysis specific cuts
  80
  81 }
  82
  83
  84 //________________________________________________________________________
  85 AliAnalysisTaskCentral::~AliAnalysisTaskCentral()
  86 {
  87 // Destructor
  88 // Delete the created objects
  89
  90         if(fESD) delete fESD;
  91         if(fMC) delete fMC;
  92
  93         for (Int_t i=0; i<10; i++)
  94           delete fCutsList[i];
  95
  96
  97         if(fNoEvt) delete fNoEvt;
  98
  99         if(fCFContainerPi) delete fCFContainerPi;
 100         if(fCFContainerPi) delete fCFContainerK;
 101         if(fCFContainerPi) delete fCFContainerP;
 102
 103         if(fOutList) delete fOutList;
 104
 105
 106 }
 107
 108 //________________________________________________________________________
 109 void AliAnalysisTaskCentral::ConnectInputData(Option_t *) {
 110 // get the event from the input chain
 111
 112     TTree* tree = dynamic_cast<TTree*> (GetInputData(0));
 113         printf("tree(%p)\n", (void*)tree);
 114
 115     if (!tree) {
 116         Printf("ERROR: Could not read chain from input slot 0");
 117     } else {
 118         AliESDInputHandler *esdH = dynamic_cast<AliESDInputHandler*> (AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler());
 119         if (!esdH) {
 120             Printf("ERROR: Could not get ESDInputHandler");
 121         }
 122         else fESD = esdH->GetEvent();
 123
 124         AliMCEventHandler *mcH = (AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler());
 125         if (!mcH) {
 126             Printf("ERROR: Could not get MCInputHandler");
 127             fSim = kFALSE;
 128         }
 129         else{
 130             fMC = mcH->MCEvent();
 131             fSim = kTRUE;
 132         }
 133     }
 134 }
 135
 136 //________________________________________________________________________
 137 void AliAnalysisTaskCentral::CreateOutputObjects(){
 138 //Creates the output list
 139
 140 //      fNoEvt = new TH1F(Form("%s_NoEvt",GetName()), "Number of processed events", 1, 0.0, 1.0);
 141
 142         fNoEvt = new TH1D("TaskCentral_NoEvt", "Number of processed events", 1, 0.0, 1.0);
 143 //set here the min and max variable values (to do: move these to a separate cuts class)
 144     const Double_t ptmin  = 0.0 ; //bins in pt
 145     const Double_t ptmax  = 5.0 ; //bins in y
 146     const Double_t etamin  = -0.9 ; //bins in pt
 147     const Double_t etamax  = 0.9 ; //bins in y
 148     //apropiate number of bins for histos and CF Container
 149     const Int_t nbinpt  = 25 ; //bins in pt
 150     const Int_t nbineta  = 25 ; //bins in y
 151
 152 //Correction Framework CONTAINER DEFINITION
 153     //the sensitive variables, their indices
 154         UInt_t ipt = 0;
 155         UInt_t ieta  = 1;
 156     //Setting up the container grid...
 157     const UInt_t nstep = 2 ; //number of selection steps MC & ESD
 158     const Int_t nvar = 2 ; //number of variables on the grid:pt,eta
 159
 160     //arrays for the number of bins in each dimension
 161     //nbin is defined above
 162     Int_t iBin[nvar];
 163     iBin[0]=nbinpt;
 164     iBin[1]=nbineta;
 165
 166     //arrays for lower bounds :
 167     Double_t *binLim1=new Double_t[nbinpt+1];
 168     Double_t *binLim2=new Double_t[nbineta+1];
 169
 170     //values for bin lower bounds
 171     for(Int_t i=0; i<=nbinpt; i++) binLim1[i]=(Double_t)ptmin + (ptmax-ptmin)/nbinpt*(Double_t)i ;
 172     for(Int_t i=0; i<=nbineta; i++) binLim2[i]=(Double_t)etamin  + (etamax-etamin)  /nbineta*(Double_t)i ;
 173
 174         //container creation
 175         fCFContainerPi = new AliCFContainer("TaskCentral_CFCont_Pi","container for tracks",nstep,nvar,iBin);
 176         fCFContainerK = new AliCFContainer("TaskCentral_CFCont_K","container for tracks",nstep,nvar,iBin);
 177         fCFContainerP = new AliCFContainer("TaskCentral_CFCont_P","container for tracks",nstep,nvar,iBin);
 178
 179     //setting the bin limits
 180     fCFContainerPi -> SetBinLimits(ipt,binLim1);
 181     fCFContainerPi -> SetBinLimits(ieta,binLim2);
 182
 183         fCFContainerK -> SetBinLimits(ipt,binLim1);
 184         fCFContainerK -> SetBinLimits(ieta,binLim2);
 185
 186         fCFContainerP -> SetBinLimits(ipt,binLim1);
 187         fCFContainerP -> SetBinLimits(ieta,binLim2);
 188
 189 //outout list creation
 190         fOutList = new TList();
 191         fOutList->Add(fNoEvt);
 192         fOutList->Add(fCFContainerPi);
 193         fOutList->Add(fCFContainerK);
 194         fOutList->Add(fCFContainerP);
 195 }
 196
 197
 198 //________________________________________________________________
 199 void AliAnalysisTaskCentral::InitCuts(){
 200
 201 //Create and set cuts
 202
 203 //------------------EVENT LEVEL CUTS--------------------
 204 //-----------------------MC-----------------------------
 205         AliAnalysisCentralCutEvtMC *evMCCuts = new AliAnalysisCentralCutEvtMC();
 206         evMCCuts->SetMultiplicityRange(1,100);
 207         evMCCuts->SetDirectivityRange(0.0, 1.0);
 208     evMCCuts->SetDirUnitRange(0.0, 1.0);
 209
 210 //-----------------------ESD----------------------------
 211         AliAnalysisCentralCutEvtESD *evESDCuts = new AliAnalysisCentralCutEvtESD();
 212         evESDCuts->SetMultiplicityRange(1,100);
 213         evESDCuts->SetDirectivityRange(0.0, 1.0);
 214     evESDCuts->SetSPDMultiplicityRange(1,20000);
 215     evESDCuts->SetSPDDirectivityRange(0.0, 1.0);
 216
 217         TObjArray* mcEventCuts = new TObjArray();
 218         mcEventCuts->AddLast(evMCCuts);
 219
 220         TObjArray* esdEventCuts = new TObjArray();
 221         esdEventCuts->AddLast(evESDCuts);
 222
 223
 224 //------------------PARTICLE LEVEL CUTS-----------------
 225 //-------------------General MC Cuts--------------------
 226         AliAnalysisCentralCutMC *mcCutsGen = new AliAnalysisCentralCutMC();
 227         mcCutsGen->SetOnlyPrimaries(kTRUE);
 228         mcCutsGen->SetPtRange(0.2,4.0);
 229         mcCutsGen->SetEtaRange(-0.2,0.2);
 230
 231 //-------------------Specific MC Cuts-------------------
 232         AliAnalysisCentralCutMC *mcCutsPi = new AliAnalysisCentralCutMC();
 233         mcCutsPi->SetPDGCode(211); //211 pion;  321 kaon; 2212 proton
 234
 235         AliAnalysisCentralCutMC *mcCutsK = new AliAnalysisCentralCutMC();
 236         mcCutsK->SetPDGCode(321); //211 pion;  321 kaon; 2212 proton
 237
 238         AliAnalysisCentralCutMC *mcCutsP = new AliAnalysisCentralCutMC();
 239         mcCutsP->SetPDGCode(2212); //211 pion;  321 kaon; 2212 proton
 240
 241 //--------each task has its own mcList of cuts----------
 242         TObjArray *mcListGen = new TObjArray(); //general MC cuts
 243         mcListGen->AddLast(mcCutsGen);
 244
 245         TObjArray *mcListPi = new TObjArray(); //task pt pions
 246         mcListPi->AddLast(mcCutsPi);
 247
 248         TObjArray *mcListK = new TObjArray(); //task pt kaons
 249         mcListK->AddLast(mcCutsK);
 250
 251         TObjArray *mcListP = new TObjArray(); //task pt protons
 252         mcListP->AddLast(mcCutsP);
 253
 254
 255 //-------------------General ESD Cuts-------------------
 256         AliESDtrackCuts *esdCutsGen = new AliESDtrackCuts("AliESDtrackCuts", "Loose");
 257         esdCutsGen->SetMinNClustersTPC(50);
 258         esdCutsGen->SetMaxChi2PerClusterTPC(2.2);
 259         esdCutsGen->SetMaxCovDiagonalElements(0.5,0.5,0.5,0.5,0.5);
 260         esdCutsGen->SetRequireTPCRefit(kTRUE);
 261         esdCutsGen->SetAcceptKinkDaughters(kFALSE);
 262         esdCutsGen->SetMaxNsigmaToVertex(2.0);
 263         esdCutsGen->SetRequireSigmaToVertex(kTRUE);
 264         esdCutsGen->SetPtRange(0.2,4.0);
 265         esdCutsGen->SetEtaRange(-0.2,0.2);
 266
 267 //-------------------Specific ESD Cuts------------------
 268         AliAnalysisCentralCutESD *esdCutsPi = new AliAnalysisCentralCutESD("AliAnalysisCentralCutESD","NIHAM");
 269         esdCutsPi->SetPIDtype("Custom");
 270         esdCutsPi->SetPriorFunctions(kFALSE);
 271         esdCutsPi->SetPartType(kPiPlus);
 272
 273         AliAnalysisCentralCutESD *esdCutsK = new AliAnalysisCentralCutESD("AliAnalysisCentralCutESD","NIHAM");
 274         esdCutsK->SetPIDtype("Custom");
 275         esdCutsK->SetPriorFunctions(kFALSE);
 276         esdCutsK->SetPartType(kKPlus);
 277
 278         AliAnalysisCentralCutESD *esdCutsP = new AliAnalysisCentralCutESD("AliAnalysisCentralCutESD","NIHAM");
 279         esdCutsP->SetPIDtype("Custom");
 280         esdCutsP->SetPriorFunctions(kFALSE);
 281         esdCutsP->SetPartType(kProton);
 282
 283 //--------each task has its own esdList of cuts---------
 284         TObjArray* esdListGen = new TObjArray(); //general ESD track cuts
 285         esdListGen->AddLast(esdCutsGen);
 286
 287         TObjArray* esdListPi = new TObjArray();
 288         esdListPi->AddLast(esdCutsPi);
 289
 290         TObjArray* esdListK = new TObjArray();
 291         esdListK->AddLast(esdCutsK);
 292
 293         TObjArray* esdListP = new TObjArray();
 294         esdListP->AddLast(esdCutsP);
 295
 296 //------set the cuts to the RIGHT! fCutsList slots-------
 297 // event level cuts
 298         SetCuts(0, mcEventCuts);
 299         SetCuts(1, esdEventCuts);
 300
 301 // particle level cuts
 302         SetCuts(2, mcListGen);
 303         SetCuts(3, mcListPi);
 304         SetCuts(4, mcListK);
 305         SetCuts(5, mcListP);
 306
 307         SetCuts(6, esdListGen);
 308         SetCuts(7, esdListPi);
 309         SetCuts(8, esdListK);
 310         SetCuts(9, esdListP);
 311
 312 }
 313
 314
 315 //_______________________________________________________________________
 316 void AliAnalysisTaskCentral::SendEvent(TObject *obj) const{
 317
 318 // Some cuts (ie MC IsPrimary) need the MC Event info
 319
 320                 for(Int_t isel=0;isel< 10; isel++){
 321                         if(!fCutsList[isel]) continue;
 322                         TObjArrayIter iter(fCutsList[isel]);
 323                         AliAnalysisCuts *cut = 0;
 324
 325                         while ((cut = (AliAnalysisCuts*)iter.Next())) {
 326
 327                                 TString cutName=cut->GetName();
 328                                 if(!cutName){
 329                                         printf("No cutname!\n");
 330                                         return;
 331                                 }
 332
 333                                 Bool_t checkCut=cutName.Contains("AliAnalysisCentralCutMC");
 334
 335                                 if(checkCut){
 336                                         AliAnalysisCentralCutMC *newcut = dynamic_cast<AliAnalysisCentralCutMC *>(cut);
 337                                         if (newcut) newcut->ReceiveEvt(obj);
 338                                 }
 339                         }
 340                 }
 341
 342 }
 343
 344
 345 //________________________________________________________________________
 346 Bool_t AliAnalysisTaskCentral::CheckCuts(Int_t no, TObject *obj) const{
 347
 348 // For each cut run IsSelected();
 349 //      printf("AliAnalysisTaskCentral::CheckCuts IN\n");
 350
 351     if(no > 9){
 352                 printf("\nAliAnalysisTaskCentral::CheckCuts -> Cut number is not ok! \n");
 353                 return kFALSE;
 354     }
 355
 356     if(!fCutsList[no]){
 357                 printf("AliAnalysisTaskCentral::CheckCuts -> cuts list problem! \n");
 358                 return kFALSE;
 359     }
 360
 361     TObjArrayIter iter(fCutsList[no]);
 362     AliAnalysisCuts *cut = 0;
 363
 364     while((cut = (AliAnalysisCuts*)iter.Next())){
 365                 if(!cut->IsSelected(obj)){
 366 //                      printf("AliAnalysisTaskCentral::CheckCuts OUT\n");
 367                         return kFALSE;
 368                 }
 369     }
 370
 371 //      printf("AliAnalysisTaskCentral::CheckCuts OUT\n");
 372     return kTRUE;
 373 }
 374
 375
 376 //________________________________________________________________________
 377 void AliAnalysisTaskCentral::Exec(Option_t *) {
 378
 379 // Main loop
 380 // Called for each event
 381
 382         Double_t pt, eta;
 383         Double_t w = 1.0;
 384         const Int_t nvar=2; //number of variables on the grid:pt,vtx
 385         Double_t value[nvar];//used to fill the CF container
 386
 387         if(fSim){  // if running on simulations -> look at MC Truth
 388
 389                 if (!fMC) {
 390                         Printf("ERROR: fMC not available");
 391                         return;
 392                 }
 393
 394                 if(CheckCuts(0, fMC)){ //check event level cuts
 395
 396                         SendEvent(fMC);
 397
 398                         // MC loop
 399                         for (Int_t ipart=0; ipart<fMC->GetNumberOfTracks(); ipart++) {
 400
 401                                 AliMCParticle *particle  = dynamic_cast<AliMCParticle*>(fMC->GetTrack(ipart));
 402
 403                                 if(!particle){
 404                                                 printf("\nMCParticle pointer is null!!!\n");
 405                                                 continue;
 406                                 }
 407
 408                                 if (!CheckCuts(2, particle)) continue; //check the MC general particle cuts
 409
 410                                 pt = particle->Pt();
 411                                 eta = particle->Eta();
 412
 413                                 if(pt>0) w = 1.0/pt; //invariant distribution
 414
 415                                 value[0]=pt;
 416                                 value[1]=eta;
 417
 418                                 if(CheckCuts(3, particle)){  //fill the right container for each particle
 419                                         fCFContainerPi->Fill(value,0,w);
 420                                 }
 421                                 else if(CheckCuts(4, particle)){
 422                                         fCFContainerK->Fill(value,0,w);
 423                                 }
 424                                 else if(CheckCuts(5, particle)){
 425                                         fCFContainerP->Fill(value,0,w);
 426                                 }
 427                         } //end MC particle loop
 428                 }
 429         }
 430         else{  // if we DONT run in simulated data we fill the MC step of the CFCont with 0
 431                 value[0]=0;
 432                 value[1]=0;
 433
 434                 fCFContainerPi->Fill(value,0);
 435                 fCFContainerK->Fill(value,0);
 436                 fCFContainerP->Fill(value,0);
 437         }
 438
 439
 440     if (!fESD) {
 441         Printf("ERROR: fESD not available");
 442         return;
 443     }
 444
 445     if(CheckCuts(1, fESD)){
 446
 447                 Printf("There are %d ESD tracks in this event\n", fESD->GetNumberOfTracks());
 448
 449                 // ESD loop
 450                 for (Int_t iTracks = 0; iTracks < fESD->GetNumberOfTracks(); iTracks++) {
 451
 452                         AliESDtrack* track = fESD->GetTrack(iTracks);
 453
 454                         if (!track) {
 455                                         Printf("ERROR: Could not receive track %d", iTracks);
 456                                 continue;
 457                         }
 458
 459                         if(!CheckCuts(6, track)) continue; //check general ESD track cuts
 460
 461                         pt = track->Pt();
 462                         eta = track->Eta();
 463
 464                         if(pt>0) w = 1.0/pt; // invariant
 465
 466                         value[0]=pt;
 467                         value[1]=eta;
 468
 469                         if(CheckCuts(7, track)){
 470                                 fCFContainerPi->Fill(value,1,w);
 471                         }
 472                         else if(CheckCuts(8, track)){
 473                                 fCFContainerK->Fill(value,1,w);
 474                         }
 475                         else if(CheckCuts(9, track)){
 476                                 fCFContainerP->Fill(value,1,w);
 477                         }
 478
 479                 } //end ESD track loop
 480
 481                 fNoEvt->Fill(0); //get the number of analyzed events
 482         }
 483
 484   // Post output data.
 485         PostData(0, fOutList);
 486
 487 }
 488
 489 //________________________________________________________________________
 490 void AliAnalysisTaskCentral::Terminate(Option_t *) {
 491
 492 // Called once at the end of the query
 493         printf("\n\n****************************************\n");
 494     printf("\tAliAnalysisCentralExtrapolate Terminate... \n");
 495
 496         TList *outList = dynamic_cast<TList*>(GetOutputData(0));
 497         if(!outList){
 498                 printf("Unable to get output list! \n");
 499                 return;
 500         }
 501
 502         AliAnalysisCentralExtrapolate *extPi = new AliAnalysisCentralExtrapolate("extrapolationpi");
 503         extPi->SetInputList(outList);  //send the outlist to the extrapolation class
 504         extPi->SetParticle("kPiPlus"); //set the particle type
 505         extPi->ApplyEff();             //correct the pt distribution !!HAS TO RUN BEFORE extrapolation!!
 506         extPi->BoltzmannFit();         //fit and extrapolate using Boltzmann-Gibbs Blast wave model
 507         extPi->TsallisFit();           //fit and extrapolate using Tsallis Blast wave model
 508         TList *extOutListPi = extPi->GetOutputList();
 509
 510         AliAnalysisCentralExtrapolate *extK = new AliAnalysisCentralExtrapolate("extrapolationK");
 511         extK->SetInputList(outList);
 512         extK->SetParticle("kKPlus");
 513         extK->ApplyEff();
 514         extK->BoltzmannFit();
 515         extK->TsallisFit();
 516         TList *extOutListK = extK->GetOutputList();
 517
 518         AliAnalysisCentralExtrapolate *extP = new AliAnalysisCentralExtrapolate("extrapolationP");
 519         extP->SetInputList(outList);
 520         extP->SetParticle("kProton");
 521         extP->ApplyEff();
 522         extP->BoltzmannFit();
 523         extP->TsallisFit();
 524         TList *extOutListP = extP->GetOutputList();
 525
 526
 527 //----------- Plot the extrapolated spectra -----------------
 528         TCanvas *ccorrdata = new TCanvas();
 529         ccorrdata->Divide(3,2);
 530
 531         ccorrdata->cd(1);
 532         ccorrdata->cd(1)->SetLogy();
 533         TH1D *extBoltzPi = dynamic_cast<TH1D*>(extOutListPi->FindObject("PtExtBoltzmann"));
 534         if(extBoltzPi){
 535                 extBoltzPi->Draw("p e1");
 536         }
 537
 538         ccorrdata->cd(4);
 539         ccorrdata->cd(4)->SetLogy();
 540         TH1D *extTsallisPi = dynamic_cast<TH1D*>(extOutListPi->FindObject("PtExtTsallis"));
 541         if(extTsallisPi){
 542                 extTsallisPi->Draw("p e1");
 543         }
 544
 545
 546         ccorrdata->cd(2);
 547         ccorrdata->cd(2)->SetLogy();
 548         TH1D *extBoltzK = dynamic_cast<TH1D*>(extOutListK->FindObject("PtExtBoltzmann"));
 549         if(extBoltzK){
 550                 extBoltzK->Draw("p e1");
 551         }
 552
 553         ccorrdata->cd(5);
 554         ccorrdata->cd(5)->SetLogy();
 555         TH1D *extTsallisK = dynamic_cast<TH1D*>(extOutListK->FindObject("PtExtTsallis"));
 556         if(extTsallisK){
 557                 extTsallisK->Draw("p e1");
 558         }
 559
 560
 561         ccorrdata->cd(3);
 562         ccorrdata->cd(3)->SetLogy();
 563         TH1D *extBoltzP = dynamic_cast<TH1D*>(extOutListP->FindObject("PtExtBoltzmann"));
 564         if(extBoltzP){
 565                 extBoltzP->Draw("p e1");
 566         }
 567
 568         ccorrdata->cd(6);
 569         ccorrdata->cd(6)->SetLogy();
 570         TH1D *extTsallisP = dynamic_cast<TH1D*>(extOutListP->FindObject("PtExtTsallis"));
 571         if(extTsallisP){
 572                 extTsallisP->Draw("p e1");
 573         }
 574
 575 // ------------------ Save the results -----------------------
 576     AliAnalysisManager *mgr = AliAnalysisManager::GetAnalysisManager();
 577         if(!mgr){
 578                 printf("Unable to get AnalysisManager! \n");
 579         return;
 580         }
 581
 582         TString anaType;
 583         mgr->GetAnalysisTypeString(anaType);
 584
 585         if(anaType.Contains("local")){
 586                 fOutList->Add(extOutListPi);
 587                 fOutList->Add(extOutListK);
 588                 fOutList->Add(extOutListP);
 589         }
 590         else{
 591                 AliAnalysisDataContainer *cont = GetOutputSlot(0)->GetContainer();
 592                 if(!cont){
 593                         printf("Unable to get DataContainer! \n");
 594                         return;
 595                 }
 596
 597                 printf("file name = %s\n", cont->GetFileName());
 598                 TFile file(cont->GetFileName(),"update");
 599
 600                 file.cd("PWG2Central");
 601
 602                 gFile->WriteObject(extOutListPi,"pion_list","SingleKey");
 603                 gFile->WriteObject(extOutListK,"kaon_list","SingleKey");
 604                 gFile->WriteObject(extOutListP,"proton_list","SingleKey");
 605                 file.Close();
 606         }
 607
 608 }