PWGLF/SPECTRA/PiKaPr/TestAOD/AliAnalysisTaskSpectraAllChAOD.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 //         AliAnalysisTaskSpectraAllChAOD class
  18 //-----------------------------------------------------------------
  19
  20 #include "TChain.h"
  21 #include "TTree.h"
  22 #include "TLegend.h"
  23 #include "TH1F.h"
  24 #include "TH2F.h"
  25 #include "THnSparse.h"
  26 #include "TCanvas.h"
  27 #include "AliAnalysisTask.h"
  28 #include "AliAODTrack.h"
  29 #include "AliAODMCParticle.h"
  30 #include "AliVParticle.h"
  31 #include "AliAODEvent.h"
  32 #include "AliAODInputHandler.h"
  33 #include "AliAnalysisTaskSpectraAllChAOD.h"
  34 #include "AliAnalysisTaskESDfilter.h"
  35 #include "AliAnalysisDataContainer.h"
  36 #include "AliSpectraAODTrackCuts.h"
  37 #include "AliSpectraAODEventCuts.h"
  38 #include "AliHelperPID.h"
  39 #include "AliPIDCombined.h"
  40 #include "AliCentrality.h"
  41 #include "TProof.h"
  42 #include "AliVEvent.h"
  43 #include "AliStack.h"
  44 #include <TMCProcess.h>
  45
  46 #include <iostream>
  47
  48 using namespace AliHelperPIDNameSpace;
  49 using namespace std;
  50
  51 ClassImp(AliAnalysisTaskSpectraAllChAOD)
  52
  53 //________________________________________________________________________
  54 AliAnalysisTaskSpectraAllChAOD::AliAnalysisTaskSpectraAllChAOD(const char *name) : AliAnalysisTaskSE(name),
  55   fAOD(0x0),
  56   fTrackCuts(0x0),
  57   fEventCuts(0x0),
  58   fHelperPID(0x0),
  59   fIsMC(0),
  60   fCharge(0),
  61   fVZEROside(0),
  62   fOutput(0x0),
  63   fnCentBins(20),
  64   fnQvecBins(40)
  65 {
  66   // Default constructor
  67   DefineInput(0, TChain::Class());
  68   DefineOutput(1, TList::Class());
  69   DefineOutput(2, AliSpectraAODEventCuts::Class());
  70   DefineOutput(3, AliSpectraAODTrackCuts::Class());
  71   DefineOutput(4, AliHelperPID::Class());
  72 }
  73
  74 //________________________________________________________________________
  75 void AliAnalysisTaskSpectraAllChAOD::UserCreateOutputObjects()
  76 {
  77   // create output objects
  78   fOutput=new TList();
  79   fOutput->SetOwner();
  80   fOutput->SetName("fOutput");
  81
  82   if (!fTrackCuts) AliFatal("Track Cuts should be set in the steering macro");
  83   if (!fEventCuts) AliFatal("Event Cuts should be set in the steering macro");
  84   if (!fHelperPID)  AliFatal("HelperPID should be set in the steering macro");
  85
  86   // binning common to all the THn
  87   const Double_t ptBins[] = {0.20,0.30,0.4,0.5,0.6,0.7,0.8,0.9,1.0,1.2,1.4,1.6,1.8,2.0,2.4,2.8,3.2,3.6,4.0,5.0,6.0,7.0,8.0,9.0,10.,12.,15.};
  88   const Int_t nptBins=26;
  89
  90   //dimensions of THnSparse for tracks
  91   const Int_t nvartrk=8;
  92   //                                             pt          cent        Q vec     IDrec     IDgen       isph           iswd      y
  93   Int_t    binsHistRealTrk[nvartrk] = {      nptBins, fnCentBins,   fnQvecBins,        4,        3,         2,          2,       2};
  94   Double_t xminHistRealTrk[nvartrk] = {         0.,          0.,            0.,      -.5,      -0.5,      -0.5,        -0.5,   -0.5};
  95   Double_t xmaxHistRealTrk[nvartrk] = {       10.,       100.,            8.,      3.5,      2.5,       1.5,         1.5,     0.5};
  96   THnSparseF* NSparseHistTrk = new THnSparseF("NSparseHistTrk","NSparseHistTrk",nvartrk,binsHistRealTrk,xminHistRealTrk,xmaxHistRealTrk);
  97   NSparseHistTrk->GetAxis(0)->SetTitle("#it{p}_{T,rec}");
  98   NSparseHistTrk->GetAxis(0)->SetName("pT_rec");
  99   NSparseHistTrk->SetBinEdges(0,ptBins);
 100   NSparseHistTrk->GetAxis(1)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
 101   NSparseHistTrk->GetAxis(1)->SetName(Form("%s_cent",fEventCuts->GetCentralityMethod().Data()));
 102   NSparseHistTrk->GetAxis(2)->SetTitle("Q vec");
 103   NSparseHistTrk->GetAxis(2)->SetName("Q_vec");
 104   NSparseHistTrk->GetAxis(3)->SetTitle("ID rec");
 105   NSparseHistTrk->GetAxis(3)->SetName("ID_rec");
 106   NSparseHistTrk->GetAxis(4)->SetTitle("ID gen");
 107   NSparseHistTrk->GetAxis(4)->SetName("ID_gen");
 108   NSparseHistTrk->GetAxis(5)->SetTitle("isph");
 109   NSparseHistTrk->GetAxis(5)->SetName("isph");
 110   NSparseHistTrk->GetAxis(6)->SetTitle("iswd");
 111   NSparseHistTrk->GetAxis(6)->SetName("iswd");
 112   NSparseHistTrk->GetAxis(7)->SetTitle("y");
 113   NSparseHistTrk->GetAxis(7)->SetName("y");
 114   fOutput->Add(NSparseHistTrk);
 115
 116   //dimensions of THnSparse for stack
 117   const Int_t nvarst=5;
 118   //                                             pt          cent    IDgen        isph        y
 119   Int_t    binsHistRealSt[nvarst] = {      nptBins,  fnCentBins,        3,         2,        2};
 120   Double_t xminHistRealSt[nvarst] = {         0.,           0.,      -0.5,      -0.5,    -0.5};
 121   Double_t xmaxHistRealSt[nvarst] = {       10.,        100.,      2.5,       1.5,      0.5};
 122   THnSparseF* NSparseHistSt = new THnSparseF("NSparseHistSt","NSparseHistSt",nvarst,binsHistRealSt,xminHistRealSt,xmaxHistRealSt);
 123   NSparseHistSt->GetAxis(0)->SetTitle("#it{p}_{T,gen}");
 124   NSparseHistSt->SetBinEdges(0,ptBins);
 125   NSparseHistSt->GetAxis(0)->SetName("pT_rec");
 126   NSparseHistSt->GetAxis(1)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
 127   NSparseHistSt->GetAxis(1)->SetName(Form("%s_cent",fEventCuts->GetCentralityMethod().Data()));
 128   NSparseHistSt->GetAxis(2)->SetTitle("ID gen");
 129   NSparseHistSt->GetAxis(2)->SetName("ID_gen");
 130   NSparseHistSt->GetAxis(3)->SetTitle("isph");
 131   NSparseHistSt->GetAxis(3)->SetName("isph");
 132   NSparseHistSt->GetAxis(4)->SetTitle("y");
 133   NSparseHistSt->GetAxis(4)->SetName("y");
 134   fOutput->Add(NSparseHistSt);
 135
 136   //dimensions of THnSparse for the normalization
 137   const Int_t nvarev=2;
 138   //                                             cent             Q vec
 139   Int_t    binsHistRealEv[nvarev] = {    fnCentBins,      fnQvecBins};
 140   Double_t xminHistRealEv[nvarev] = {           0.,               0.};
 141   Double_t xmaxHistRealEv[nvarev] = {       100.,              10.};
 142   THnSparseF* NSparseHistEv = new THnSparseF("NSparseHistEv","NSparseHistEv",nvarev,binsHistRealEv,xminHistRealEv,xmaxHistRealEv);
 143   NSparseHistEv->GetAxis(0)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
 144   NSparseHistEv->GetAxis(0)->SetName(Form("%s_cent",fEventCuts->GetCentralityMethod().Data()));
 145   NSparseHistEv->GetAxis(1)->SetTitle("Q vec");
 146   NSparseHistEv->GetAxis(1)->SetName("Q_vec");
 147   fOutput->Add(NSparseHistEv);
 148
 149   PostData(1, fOutput  );
 150   PostData(2, fEventCuts);
 151   PostData(3, fTrackCuts);
 152   PostData(4, fHelperPID);
 153 }
 154
 155 //________________________________________________________________________
 156
 157 void AliAnalysisTaskSpectraAllChAOD::UserExec(Option_t *)
 158 {
 159   //Printf("An event");
 160   // main event loop
 161   fAOD = dynamic_cast<AliAODEvent*>(fInputEvent);
 162   if (!fAOD) {
 163     AliWarning("ERROR: AliAODEvent not available \n");
 164     return;
 165   }
 166
 167   if (strcmp(fAOD->ClassName(), "AliAODEvent"))
 168     {
 169       AliFatal("Not processing AODs");
 170     }
 171
 172   if(!fEventCuts->IsSelected(fAOD,fTrackCuts))return;//event selection
 173
 174   //Default TPC priors
 175   if(fHelperPID->GetPIDType()==kBayes)fHelperPID->GetPIDCombined()->SetDefaultTPCPriors();//FIXME maybe this can go in the UserCreateOutputObject?
 176
 177   Double_t Qvec=0.;//in case of MC we save space in the memory
 178   if(!fIsMC){
 179     if(fVZEROside==0)Qvec=fEventCuts->GetqV0A();
 180     else if (fVZEROside==1)Qvec=fEventCuts->GetqV0C();
 181   }
 182
 183   Double_t Cent=fEventCuts->GetCent();
 184
 185   // First do MC to fill up the MC particle array
 186   TClonesArray *arrayMC = 0;
 187   if (fIsMC)
 188     {
 189       arrayMC = (TClonesArray*) fAOD->GetList()->FindObject(AliAODMCParticle::StdBranchName());
 190       if (!arrayMC) {
 191         AliFatal("Error: MC particles branch not found!\n");
 192       }
 193       Int_t nMC = arrayMC->GetEntries();
 194       for (Int_t iMC = 0; iMC < nMC; iMC++)
 195         {
 196           AliAODMCParticle *partMC = (AliAODMCParticle*) arrayMC->At(iMC);
 197           if(!partMC->Charge()) continue;//Skip neutrals
 198           if(fCharge != 0 && partMC->Charge() != fCharge) continue;//if fCharge != 0 only select fCharge
 199
 200           if(partMC->Eta() < fTrackCuts->GetEtaMin() || partMC->Eta() > fTrackCuts->GetEtaMax())continue;//ETA CUT ON GENERATED!!!!!!!!!!!!!!!!!!!!!!!!!!
 201
 202           //pt     cent    IDgen        isph        y
 203           Double_t varSt[5];
 204           varSt[0]=partMC->Pt();
 205           varSt[1]=Cent;
 206           varSt[2]=(Double_t)fHelperPID->GetParticleSpecies(partMC);
 207           varSt[3]=(Double_t)partMC->IsPhysicalPrimary();
 208           varSt[4]=partMC->Y();
 209           ((THnSparseF*)fOutput->FindObject("NSparseHistSt"))->Fill(varSt);//stack loop
 210
 211           //Printf("a particle");
 212
 213         }
 214     }
 215
 216   //main loop on tracks
 217   for (Int_t iTracks = 0; iTracks < fAOD->GetNumberOfTracks(); iTracks++) {
 218     AliAODTrack* track = fAOD->GetTrack(iTracks);
 219     if(fCharge != 0 && track->Charge() != fCharge) continue;//if fCharge != 0 only select fCharge
 220     if (!fTrackCuts->IsSelected(track,kTRUE)) continue; //track selection (rapidity selection NOT in the standard cuts)
 221     Int_t IDrec=fHelperPID->GetParticleSpecies(track,kTRUE);//id from detector
 222     Double_t y= track->Y(fHelperPID->GetMass((AliHelperParticleSpecies_t)IDrec));
 223     Int_t IDgen=kSpUndefined;//set if MC
 224     Int_t isph=-999;
 225     Int_t iswd=-999;
 226
 227     if (arrayMC) {
 228       AliAODMCParticle *partMC = (AliAODMCParticle*) arrayMC->At(TMath::Abs(track->GetLabel()));
 229       if (!partMC) {
 230         AliError("Cannot get MC particle");
 231         continue;
 232       }
 233       IDgen=fHelperPID->GetParticleSpecies(partMC);
 234       isph=partMC->IsPhysicalPrimary();
 235       iswd=partMC->IsSecondaryFromWeakDecay();//FIXME not working on old productions
 236     }
 237
 238     //pt     cent    Q vec     IDrec     IDgen       isph           iswd      y
 239     Double_t varTrk[8];
 240     varTrk[0]=track->Pt();
 241     varTrk[1]=Cent;
 242     varTrk[2]=Qvec;
 243     varTrk[3]=(Double_t)IDrec;
 244     varTrk[4]=(Double_t)IDgen;
 245     varTrk[5]=(Double_t)isph;
 246     varTrk[6]=(Double_t)iswd;
 247     varTrk[7]=y;
 248     ((THnSparseF*)fOutput->FindObject("NSparseHistTrk"))->Fill(varTrk);//track loop
 249
 250     //for nsigma PID fill double counting of ID
 251     if(fHelperPID->GetPIDType()<kBayes){//only nsigma
 252       Bool_t *HasDC;
 253       HasDC=fHelperPID->GetDoubleCounting(track,kTRUE);//get the array with double counting
 254       for(Int_t ipart=0;ipart<kNSpecies;ipart++){
 255         if(HasDC[ipart]==kTRUE){
 256           varTrk[3]=(Double_t)ipart;
 257           ((THnSparseF*)fOutput->FindObject("NSparseHistTrk"))->Fill(varTrk);//track loop
 258         }
 259       }
 260     }
 261
 262     //fill all charged (4)
 263     varTrk[3]=4.;
 264     ((THnSparseF*)fOutput->FindObject("NSparseHistTrk"))->Fill(varTrk);//track loop
 265
 266     //Printf("a track");
 267
 268   } // end loop on tracks
 269
 270   Double_t varEv[2];
 271   varEv[0]=Cent;
 272   varEv[1]=Qvec;
 273   ((THnSparseF*)fOutput->FindObject("NSparseHistEv"))->Fill(varEv);//event loop
 274
 275   PostData(1, fOutput  );
 276   PostData(2, fEventCuts);
 277   PostData(3, fTrackCuts);
 278   PostData(4, fHelperPID);
 279 }
 280
 281 //_________________________________________________________________
 282 void   AliAnalysisTaskSpectraAllChAOD::Terminate(Option_t *)
 283 {
 284   // Terminate
 285 }