PWGDQ/dielectron/AliAnalysisTaskMultiDielectron.cxx

   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 //                        Basic Analysis Task                            //
  19 //                                                                       //
  20 ///////////////////////////////////////////////////////////////////////////
  21
  22 #include <TChain.h>
  23 #include <TH1D.h>
  24
  25 #include <AliCFContainer.h>
  26 #include <AliInputEventHandler.h>
  27 #include <AliESDInputHandler.h>
  28 #include <AliAODInputHandler.h>
  29 #include <AliAnalysisManager.h>
  30 #include <AliVEvent.h>
  31 #include <AliTriggerAnalysis.h>
  32 #include <AliPIDResponse.h>
  33 #include <AliTPCPIDResponse.h>
  34
  35 #include "AliDielectron.h"
  36 #include "AliDielectronHistos.h"
  37 #include "AliDielectronCF.h"
  38 #include "AliDielectronMC.h"
  39 #include "AliDielectronMixingHandler.h"
  40 #include "AliAnalysisTaskMultiDielectron.h"
  41
  42 ClassImp(AliAnalysisTaskMultiDielectron)
  43
  44 //_________________________________________________________________________________
  45 AliAnalysisTaskMultiDielectron::AliAnalysisTaskMultiDielectron() :
  46   AliAnalysisTaskSE(),
  47         fPairArray(0x0),
  48   fListDielectron(),
  49   fListHistos(),
  50   fListCF(),
  51   fSelectPhysics(kFALSE),
  52   fTriggerMask(AliVEvent::kMB),
  53   fExcludeTriggerMask(0),
  54   fTriggerOnV0AND(kFALSE),
  55   fFiredTrigger(""),
  56   fFiredExclude(kFALSE),
  57   fRejectPileup(kFALSE),
  58   fBeamEnergy(-1.),
  59   fTriggerLogic(kAny),
  60   fTriggerAnalysis(0x0),
  61   fEventFilter(0x0),
  62   fEventStat(0x0)
  63 {
  64   //
  65   // Constructor
  66   //
  67 }
  68
  69 //_________________________________________________________________________________
  70 AliAnalysisTaskMultiDielectron::AliAnalysisTaskMultiDielectron(const char *name) :
  71   AliAnalysisTaskSE(name),
  72   fPairArray(0x0),
  73   fListDielectron(),
  74   fListHistos(),
  75   fListCF(),
  76   fSelectPhysics(kFALSE),
  77   fTriggerMask(AliVEvent::kMB),
  78   fExcludeTriggerMask(0),
  79   fTriggerOnV0AND(kFALSE),
  80   fFiredTrigger(""),
  81   fFiredExclude(kFALSE),
  82   fRejectPileup(kFALSE),
  83   fBeamEnergy(-1.),
  84   fTriggerLogic(kAny),
  85   fTriggerAnalysis(0x0),
  86   fEventFilter(0x0),
  87   fEventStat(0x0)
  88 {
  89   //
  90   // Constructor
  91   //
  92   DefineInput(0,TChain::Class());
  93   DefineOutput(1, TList::Class());
  94   DefineOutput(2, TList::Class());
  95   DefineOutput(3, TH1D::Class());
  96   fListHistos.SetName("Dielectron_Histos_Multi");
  97   fListCF.SetName("Dielectron_CF_Multi");
  98   fListDielectron.SetOwner();
  99   fListHistos.SetOwner();
 100   fListCF.SetOwner();
 101 }
 102
 103 //_________________________________________________________________________________
 104 AliAnalysisTaskMultiDielectron::~AliAnalysisTaskMultiDielectron()
 105 {
 106   //
 107   // Destructor
 108   //
 109
 110   //histograms and CF are owned by the dielectron framework.
 111   //however they are streamed to file, so in the first place the
 112   //lists need to be owner...
 113   fListHistos.SetOwner(kFALSE);
 114   fListCF.SetOwner(kFALSE);
 115
 116   //  if(fPairArray)       { delete fPairArray;       fPairArray=0; }
 117   // try to reduce memory issues
 118   if(fEventStat)       { delete fEventStat;       fEventStat=0; }
 119   if(fTriggerAnalysis) { delete fTriggerAnalysis; fTriggerAnalysis=0; }
 120 }
 121 //_________________________________________________________________________________
 122 void AliAnalysisTaskMultiDielectron::UserCreateOutputObjects()
 123 {
 124   //
 125   // Add all histogram manager histogram lists to the output TList
 126   //
 127
 128   if (!fListHistos.IsEmpty()||!fListCF.IsEmpty()) return; //already initialised
 129
 130 //   AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
 131 //   Bool_t isESD=man->GetInputEventHandler()->IsA()==AliESDInputHandler::Class();
 132 //   Bool_t isAOD=man->GetInputEventHandler()->IsA()==AliAODInputHandler::Class();
 133
 134   TIter nextDie(&fListDielectron);
 135   AliDielectron *die=0;
 136   while ( (die=static_cast<AliDielectron*>(nextDie())) ){
 137     die->Init();
 138     if (die->GetHistogramList())    fListHistos.Add(const_cast<THashList*>(die->GetHistogramList()));
 139     if (die->GetHistogramArray())   fListHistos.Add(const_cast<TObjArray*>(die->GetHistogramArray()));
 140     if (die->GetQAHistArray())      fListHistos.Add(const_cast<TObjArray*>(die->GetQAHistArray()));
 141     if (die->GetCFManagerPair())    fListCF.Add(const_cast<AliCFContainer*>(die->GetCFManagerPair()->GetContainer()));
 142   }
 143
 144   Int_t cuts=fListDielectron.GetEntries();
 145   Int_t nbins=kNbinsEvent+2*cuts;
 146   if (!fEventStat){
 147     fEventStat=new TH1D("hEventStat","Event statistics",nbins,0,nbins);
 148     fEventStat->GetXaxis()->SetBinLabel(1,"Before Phys. Sel.");
 149     fEventStat->GetXaxis()->SetBinLabel(2,"After Phys. Sel.");
 150
 151     //default names
 152     fEventStat->GetXaxis()->SetBinLabel(3,"Bin3 not used");
 153     fEventStat->GetXaxis()->SetBinLabel(4,"Bin4 not used");
 154     fEventStat->GetXaxis()->SetBinLabel(5,"Bin5 not used");
 155
 156     if(fTriggerOnV0AND) fEventStat->GetXaxis()->SetBinLabel(3,"V0and triggers");
 157     if (fEventFilter) fEventStat->GetXaxis()->SetBinLabel(4,"After Event Filter");
 158     if (fRejectPileup) fEventStat->GetXaxis()->SetBinLabel(5,"After Pileup rejection");
 159
 160     for (Int_t i=0; i<cuts; ++i){
 161       fEventStat->GetXaxis()->SetBinLabel((kNbinsEvent+1)+2*i,Form("#splitline{1 candidate}{%s}",fListDielectron.At(i)->GetName()));
 162       fEventStat->GetXaxis()->SetBinLabel((kNbinsEvent+2)+2*i,Form("#splitline{With >1 candidate}{%s}",fListDielectron.At(i)->GetName()));
 163     }
 164   }
 165
 166   if (!fTriggerAnalysis) fTriggerAnalysis=new AliTriggerAnalysis;
 167   fTriggerAnalysis->EnableHistograms();
 168   fTriggerAnalysis->SetAnalyzeMC(AliDielectronMC::Instance()->HasMC());
 169
 170   PostData(1, &fListHistos);
 171   PostData(2, &fListCF);
 172   PostData(3, fEventStat);
 173 }
 174
 175 //_________________________________________________________________________________
 176 void AliAnalysisTaskMultiDielectron::UserExec(Option_t *)
 177 {
 178   //
 179   // Main loop. Called for every event
 180   //
 181
 182   if (fListHistos.IsEmpty()&&fListCF.IsEmpty()) return;
 183
 184   AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
 185   Bool_t isESD=man->GetInputEventHandler()->IsA()==AliESDInputHandler::Class();
 186   Bool_t isAOD=man->GetInputEventHandler()->IsA()==AliAODInputHandler::Class();
 187
 188   AliInputEventHandler* inputHandler = (AliInputEventHandler*) (man->GetInputEventHandler());
 189   if (!inputHandler) return;
 190
 191 //   AliPIDResponse *pidRes=inputHandler->GetPIDResponse();
 192   if ( inputHandler->GetPIDResponse() ){
 193     // for the 2.76 pass2 MC private train. Together with a sigma shift of -0.169
 194 //    pidRes->GetTPCResponse().SetSigma(4.637e-3,2.41332105409873257e+04);
 195     AliDielectronVarManager::SetPIDResponse( inputHandler->GetPIDResponse() );
 196   } else {
 197     AliFatal("This task needs the PID response attached to the input event handler!");
 198   }
 199
 200   // Was event selected ?
 201   ULong64_t isSelected = AliVEvent::kAny;
 202   Bool_t isRejected = kFALSE;
 203   if( fSelectPhysics && inputHandler){
 204     if((isESD && inputHandler->GetEventSelection()) || isAOD){
 205       isSelected = inputHandler->IsEventSelected();
 206       if (fExcludeTriggerMask && (isSelected&fExcludeTriggerMask)) isRejected=kTRUE;
 207       if (fTriggerLogic==kAny) isSelected&=fTriggerMask;
 208       else if (fTriggerLogic==kExact) isSelected=((isSelected&fTriggerMask)==fTriggerMask);
 209
 210       TString firedTriggerClasses=InputEvent()->GetFiredTriggerClasses();
 211       if(!fFiredTrigger.IsNull()) isSelected=(firedTriggerClasses.Contains(fFiredTrigger))^fFiredExclude;
 212     }
 213    }
 214
 215
 216   //Before physics selection
 217   fEventStat->Fill(kAllEvents);
 218   if (isSelected==0||isRejected) {
 219     PostData(3,fEventStat);
 220     return;
 221   }
 222   //after physics selection
 223   fEventStat->Fill(kSelectedEvents);
 224
 225   //V0and
 226   if(fTriggerOnV0AND){
 227   if(isESD){if (!fTriggerAnalysis->IsOfflineTriggerFired(static_cast<AliESDEvent*>(InputEvent()), AliTriggerAnalysis::kV0AND))
 228             return;}
 229   if(isAOD){if(!((static_cast<AliAODEvent*>(InputEvent()))->GetVZEROData()->GetV0ADecision() == AliVVZERO::kV0BB &&
 230             (static_cast<AliAODEvent*>(InputEvent()))->GetVZEROData()->GetV0CDecision() == AliVVZERO::kV0BB) )
 231             return;}
 232    }
 233
 234
 235   fEventStat->Fill(kV0andEvents);
 236
 237   //Fill Event histograms before the event filter
 238   TIter nextDie(&fListDielectron);
 239   AliDielectron *die=0;
 240   Bool_t hasMC=AliDielectronMC::Instance()->HasMC();
 241   while ( (die=static_cast<AliDielectron*>(nextDie())) ){
 242     AliDielectronHistos *h=die->GetHistoManager();
 243     if (h){
 244       if (hasMC && AliDielectronMC::Instance()->ConnectMCEvent() && h->GetHistogramList()->FindObject("MCEvent_noCuts")) {
 245         AliDielectronVarManager::SetEvent(AliDielectronMC::Instance()->GetMCEvent());
 246         h->FillClass("MCEvent_noCuts",AliDielectronVarManager::kNMaxValues,AliDielectronVarManager::GetData());
 247       }
 248       if (h->GetHistogramList()->FindObject("Event_noCuts")) {
 249         AliDielectronVarManager::SetEvent(InputEvent());
 250         h->FillClass("Event_noCuts",AliDielectronVarManager::kNMaxValues,AliDielectronVarManager::GetData());
 251       }
 252     }
 253   }
 254   nextDie.Reset();
 255
 256   //event filter
 257   if (fEventFilter) {
 258     if (!fEventFilter->IsSelected(InputEvent())) return;
 259   }
 260   fEventStat->Fill(kFilteredEvents);
 261
 262   //pileup
 263   if (fRejectPileup){
 264     if (InputEvent()->IsPileupFromSPD(3,0.8,3.,2.,5.)) return;
 265   }
 266   fEventStat->Fill(kPileupEvents);
 267
 268   //bz for AliKF
 269   Double_t bz = InputEvent()->GetMagneticField();
 270   AliKFParticle::SetField( bz );
 271
 272   AliDielectronPID::SetCorrVal((Double_t)InputEvent()->GetRunNumber());
 273   AliDielectronPair::SetBeamEnergy(InputEvent(), fBeamEnergy);
 274
 275   //Process event in all AliDielectron instances
 276   //   TIter nextDie(&fListDielectron);
 277   //   AliDielectron *die=0;
 278   Bool_t sel=kFALSE;
 279   Int_t idie=0;
 280   while ( (die=static_cast<AliDielectron*>(nextDie())) ){
 281     if(die->DoEventProcess()) {
 282       sel= die->Process(InputEvent());
 283       // input for internal train
 284       if(die->DontClearArrays()) {
 285         fPairArray = (*(die->GetPairArraysPointer()));
 286
 287       }
 288     }
 289     else {
 290       // internal train
 291       if(sel) die->Process(fPairArray);
 292     }
 293
 294     if (die->HasCandidates()){
 295       Int_t ncandidates=die->GetPairArray(1)->GetEntriesFast();
 296       if (ncandidates==1) fEventStat->Fill((kNbinsEvent)+2*idie);
 297       else if (ncandidates>1) fEventStat->Fill((kNbinsEvent+1)+2*idie);
 298     }
 299     ++idie;
 300   }
 301
 302   PostData(1, &fListHistos);
 303   PostData(2, &fListCF);
 304   PostData(3,fEventStat);
 305 }
 306
 307 //_________________________________________________________________________________
 308 void AliAnalysisTaskMultiDielectron::FinishTaskOutput()
 309 {
 310   //
 311   // Write debug tree
 312   //
 313   TIter nextDie(&fListDielectron);
 314   Int_t ic=0;
 315   AliDielectron *die=0;
 316   AliDielectron *die2=0;
 317
 318   // main loop
 319   while ( (die=static_cast<AliDielectron*>(nextDie())) ){
 320     ic++;
 321
 322     // debug tree
 323     die->SaveDebugTree();
 324
 325     // skip internal train tasks in main loop
 326     if(!die->DoEventProcess()) continue;
 327
 328     // mix remaining
 329     AliDielectronMixingHandler *mix=die->GetMixingHandler();
 330     if (!mix || !mix->GetMixUncomplete()) continue;
 331
 332     // loop over all pools
 333     for (Int_t ipool=0; ipool<mix->GetNumberOfBins(); ++ipool){
 334       //      printf("mix remaining %04d/%04d \n",ipool,mix->GetNumberOfBins());
 335       mix->MixRemaining(die, ipool);
 336       fPairArray = (*(die->GetPairArraysPointer()));
 337       if(!fPairArray) continue;
 338
 339       // loop over internal train task candidates
 340       for(Int_t i=ic; i<fListDielectron.GetEntries(); i++) {
 341         die2 = static_cast<AliDielectron*>(fListDielectron.At(i));
 342         if(die2->DoEventProcess()) continue;
 343         // fill internal train output
 344         die2->SetPairArraysPointer(fPairArray);
 345         //      printf(" --> fill internal train output %s \n",die2->GetName());
 346         die2->FillHistogramsFromPairArray(kTRUE);
 347       }
 348       // printf("\n\n\n===============\ncall mix in Terminate: %p (%p)\n=================\n\n",mix,die);
 349
 350     }
 351
 352   }
 353
 354   PostData(1, &fListHistos);
 355   PostData(2, &fListCF);
 356 }
 357