PWGLF/SPECTRA/PiKaPr/TestAOD/AliAnalysisTaskSpectraAllChAOD.cxx

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  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   fDoDoubleCounting(0),
  61   fFillOnlyEvents(0),
  62   fCharge(0),
  63   fVZEROside(0),
  64   fOutput(0x0),
  65   fnCentBins(20),
  66   fnQvecBins(40),
  67   fnNchBins(200)
  68 {
  69   // Default constructor
  70   DefineInput(0, TChain::Class());
  71   DefineOutput(1, TList::Class());
  72   DefineOutput(2, AliSpectraAODEventCuts::Class());
  73   DefineOutput(3, AliSpectraAODTrackCuts::Class());
  74   DefineOutput(4, AliHelperPID::Class());
  75 }
  76
  77 //________________________________________________________________________
  78 void AliAnalysisTaskSpectraAllChAOD::UserCreateOutputObjects()
  79 {
  80   // create output objects
  81   fOutput=new TList();
  82   fOutput->SetOwner();
  83   fOutput->SetName("fOutput");
  84
  85   if (!fTrackCuts) AliFatal("Track Cuts should be set in the steering macro");
  86   if (!fEventCuts) AliFatal("Event Cuts should be set in the steering macro");
  87   if (!fHelperPID)  AliFatal("HelperPID should be set in the steering macro");
  88
  89   // binning common to all the THn
  90   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.};
  91   const Int_t nptBins=26;
  92
  93   //dimensions of THnSparse for tracks
  94   const Int_t nvartrk=8;
  95   //                                             pt          cent        Q vec     IDrec     IDgen       isph           iswd      y
  96   Int_t    binsHistRealTrk[nvartrk] = {      nptBins, fnCentBins,   fnQvecBins,        4,        3,         2,          2,       2};
  97   Double_t xminHistRealTrk[nvartrk] = {         0.,          0.,            0.,      -.5,      -0.5,      -0.5,        -0.5,   -0.5};
  98   Double_t xmaxHistRealTrk[nvartrk] = {       10.,       100.,            100.,      3.5,      2.5,       1.5,         1.5,     0.5};
  99   THnSparseF* NSparseHistTrk = new THnSparseF("NSparseHistTrk","NSparseHistTrk",nvartrk,binsHistRealTrk,xminHistRealTrk,xmaxHistRealTrk);
 100   NSparseHistTrk->GetAxis(0)->SetTitle("#it{p}_{T,rec}");
 101   NSparseHistTrk->GetAxis(0)->SetName("pT_rec");
 102   NSparseHistTrk->SetBinEdges(0,ptBins);
 103   NSparseHistTrk->GetAxis(1)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
 104   NSparseHistTrk->GetAxis(1)->SetName(Form("%s_cent",fEventCuts->GetCentralityMethod().Data()));
 105   NSparseHistTrk->GetAxis(2)->SetTitle("Q vec");
 106   NSparseHistTrk->GetAxis(2)->SetName("Q_vec");
 107   NSparseHistTrk->GetAxis(3)->SetTitle("ID rec");
 108   NSparseHistTrk->GetAxis(3)->SetName("ID_rec");
 109   NSparseHistTrk->GetAxis(4)->SetTitle("ID gen");
 110   NSparseHistTrk->GetAxis(4)->SetName("ID_gen");
 111   NSparseHistTrk->GetAxis(5)->SetTitle("isph");
 112   NSparseHistTrk->GetAxis(5)->SetName("isph");
 113   NSparseHistTrk->GetAxis(6)->SetTitle("iswd");
 114   NSparseHistTrk->GetAxis(6)->SetName("iswd");
 115   NSparseHistTrk->GetAxis(7)->SetTitle("y");
 116   NSparseHistTrk->GetAxis(7)->SetName("y");
 117   fOutput->Add(NSparseHistTrk);
 118
 119   //dimensions of THnSparse for stack
 120   const Int_t nvarst=5;
 121   //                                             pt          cent    IDgen        isph        y
 122   Int_t    binsHistRealSt[nvarst] = {      nptBins,  fnCentBins,        3,         2,        2};
 123   Double_t xminHistRealSt[nvarst] = {         0.,           0.,      -0.5,      -0.5,    -0.5};
 124   Double_t xmaxHistRealSt[nvarst] = {       10.,        100.,      2.5,       1.5,      0.5};
 125   THnSparseF* NSparseHistSt = new THnSparseF("NSparseHistSt","NSparseHistSt",nvarst,binsHistRealSt,xminHistRealSt,xmaxHistRealSt);
 126   NSparseHistSt->GetAxis(0)->SetTitle("#it{p}_{T,gen}");
 127   NSparseHistSt->SetBinEdges(0,ptBins);
 128   NSparseHistSt->GetAxis(0)->SetName("pT_rec");
 129   NSparseHistSt->GetAxis(1)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
 130   NSparseHistSt->GetAxis(1)->SetName(Form("%s_cent",fEventCuts->GetCentralityMethod().Data()));
 131   NSparseHistSt->GetAxis(2)->SetTitle("ID gen");
 132   NSparseHistSt->GetAxis(2)->SetName("ID_gen");
 133   NSparseHistSt->GetAxis(3)->SetTitle("isph");
 134   NSparseHistSt->GetAxis(3)->SetName("isph");
 135   NSparseHistSt->GetAxis(4)->SetTitle("y");
 136   NSparseHistSt->GetAxis(4)->SetName("y");
 137   fOutput->Add(NSparseHistSt);
 138
 139   //dimensions of THnSparse for the normalization
 140   const Int_t nvarev=3;
 141   //                                             cent             Q vec                Nch
 142   Int_t    binsHistRealEv[nvarev] = {    fnCentBins,      fnQvecBins,           fnNchBins};
 143   Double_t xminHistRealEv[nvarev] = {           0.,               0.,                   0.};
 144   Double_t xmaxHistRealEv[nvarev] = {       100.,               100.,               2000.};
 145   THnSparseF* NSparseHistEv = new THnSparseF("NSparseHistEv","NSparseHistEv",nvarev,binsHistRealEv,xminHistRealEv,xmaxHistRealEv);
 146   NSparseHistEv->GetAxis(0)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
 147   NSparseHistEv->GetAxis(0)->SetName(Form("%s_cent",fEventCuts->GetCentralityMethod().Data()));
 148   NSparseHistEv->GetAxis(1)->SetTitle("Q vec");
 149   NSparseHistEv->GetAxis(1)->SetName("Q_vec");
 150   NSparseHistEv->GetAxis(2)->SetTitle("N charged");
 151   NSparseHistEv->GetAxis(2)->SetName("N_ch");
 152   fOutput->Add(NSparseHistEv);
 153
 154   PostData(1, fOutput  );
 155   PostData(2, fEventCuts);
 156   PostData(3, fTrackCuts);
 157   PostData(4, fHelperPID);
 158 }
 159
 160 //________________________________________________________________________
 161
 162 void AliAnalysisTaskSpectraAllChAOD::UserExec(Option_t *)
 163 {
 164   //Printf("An event");
 165   // main event loop
 166   fAOD = dynamic_cast<AliAODEvent*>(fInputEvent);
 167   if (!fAOD) {
 168     AliWarning("ERROR: AliAODEvent not available \n");
 169     return;
 170   }
 171
 172   if (strcmp(fAOD->ClassName(), "AliAODEvent"))
 173     {
 174       AliFatal("Not processing AODs");
 175     }
 176
 177   if(!fEventCuts->IsSelected(fAOD,fTrackCuts))return;//event selection
 178
 179   //Default TPC priors
 180   if(fHelperPID->GetPIDType()==kBayes)fHelperPID->GetPIDCombined()->SetDefaultTPCPriors();//FIXME maybe this can go in the UserCreateOutputObject?
 181
 182   Double_t Qvec=0.;//in case of MC we save space in the memory
 183   if(!fIsMC){
 184     //     if(fVZEROside==0)Qvec=fEventCuts->GetqV0A();
 185     //     else if (fVZEROside==1)Qvec=fEventCuts->GetqV0C();
 186     Qvec=fEventCuts->GetQvecPercentile(fVZEROside);
 187   }
 188
 189   Double_t Cent=fEventCuts->GetCent();
 190
 191   // First do MC to fill up the MC particle array
 192   TClonesArray *arrayMC = 0;
 193   if (fIsMC)
 194     {
 195       arrayMC = (TClonesArray*) fAOD->GetList()->FindObject(AliAODMCParticle::StdBranchName());
 196       if (!arrayMC) {
 197         AliFatal("Error: MC particles branch not found!\n");
 198       }
 199       Int_t nMC = arrayMC->GetEntries();
 200       for (Int_t iMC = 0; iMC < nMC; iMC++)
 201         {
 202           AliAODMCParticle *partMC = (AliAODMCParticle*) arrayMC->At(iMC);
 203           if(!partMC->Charge()) continue;//Skip neutrals
 204           if(fCharge != 0 && partMC->Charge()*fCharge < 0.) continue;//if fCharge != 0 only select fCharge
 205
 206           //if(partMC->Eta() < fTrackCuts->GetEtaMin() || partMC->Eta() > fTrackCuts->GetEtaMax())continue;//ETA CUT ON GENERATED!!!!!!!!!!!!!!!!!!!!!!!!!!
 207
 208           //pt     cent    IDgen        isph        y
 209           Double_t varSt[5];
 210           varSt[0]=partMC->Pt();
 211           varSt[1]=Cent;
 212           varSt[2]=(Double_t)fHelperPID->GetParticleSpecies(partMC);
 213           varSt[3]=(Double_t)partMC->IsPhysicalPrimary();
 214           varSt[4]=partMC->Y();
 215           ((THnSparseF*)fOutput->FindObject("NSparseHistSt"))->Fill(varSt);//stack loop
 216
 217           //Printf("a particle");
 218
 219         }
 220     }
 221
 222   //main loop on tracks
 223
 224   Int_t Nch = 0.;
 225
 226   for (Int_t iTracks = 0; iTracks < fAOD->GetNumberOfTracks(); iTracks++) {
 227     AliAODTrack* track = fAOD->GetTrack(iTracks);
 228     if(fCharge != 0 && track->Charge() != fCharge) continue;//if fCharge != 0 only select fCharge
 229     if (!fTrackCuts->IsSelected(track,kTRUE)) continue; //track selection (rapidity selection NOT in the standard cuts)
 230     if(!fFillOnlyEvents){
 231       Int_t IDrec=fHelperPID->GetParticleSpecies(track,kTRUE);//id from detector
 232       Double_t y= track->Y(fHelperPID->GetMass((AliHelperParticleSpecies_t)IDrec));
 233       Int_t IDgen=kSpUndefined;//set if MC
 234       Int_t isph=-999;
 235       Int_t iswd=-999;
 236
 237       if (arrayMC) {
 238         AliAODMCParticle *partMC = (AliAODMCParticle*) arrayMC->At(TMath::Abs(track->GetLabel()));
 239         if (!partMC) {
 240           AliError("Cannot get MC particle");
 241           continue;
 242         }
 243         IDgen=fHelperPID->GetParticleSpecies(partMC);
 244         isph=partMC->IsPhysicalPrimary();
 245         iswd=partMC->IsSecondaryFromWeakDecay();//FIXME not working on old productions
 246       }
 247
 248     //pt     cent    Q vec     IDrec     IDgen       isph           iswd      y
 249       Double_t varTrk[8];
 250       varTrk[0]=track->Pt();
 251       varTrk[1]=Cent;
 252       varTrk[2]=Qvec;
 253       varTrk[3]=(Double_t)IDrec;
 254       varTrk[4]=(Double_t)IDgen;
 255       varTrk[5]=(Double_t)isph;
 256       varTrk[6]=(Double_t)iswd;
 257       varTrk[7]=y;
 258       ((THnSparseF*)fOutput->FindObject("NSparseHistTrk"))->Fill(varTrk);//track loop
 259
 260       //for nsigma PID fill double counting of ID
 261       if(fHelperPID->GetPIDType()<kBayes && fDoDoubleCounting){//only nsigma
 262         Bool_t *HasDC;
 263         HasDC=fHelperPID->GetDoubleCounting(track,kTRUE);//get the array with double counting
 264         for(Int_t ipart=0;ipart<kNSpecies;ipart++){
 265           if(HasDC[ipart]==kTRUE){
 266             varTrk[3]=(Double_t)ipart;
 267             ((THnSparseF*)fOutput->FindObject("NSparseHistTrk"))->Fill(varTrk);//track loop
 268           }
 269         }
 270       }
 271
 272       //fill all charged (3)
 273       varTrk[3]=3.;
 274       varTrk[4]=3.;
 275       ((THnSparseF*)fOutput->FindObject("NSparseHistTrk"))->Fill(varTrk);//track loop
 276     }//end if fFillOnlyEvents
 277
 278     //Printf("a track");
 279
 280     Nch++;
 281   } // end loop on tracks
 282
 283   Double_t varEv[3];
 284   varEv[0]=Cent;
 285   varEv[1]=Qvec;
 286   varEv[2]=Nch;
 287   ((THnSparseF*)fOutput->FindObject("NSparseHistEv"))->Fill(varEv);//event loop
 288
 289   PostData(1, fOutput  );
 290   PostData(2, fEventCuts);
 291   PostData(3, fTrackCuts);
 292   PostData(4, fHelperPID);
 293 }
 294
 295 //_________________________________________________________________
 296 void   AliAnalysisTaskSpectraAllChAOD::Terminate(Option_t *)
 297 {
 298   // Terminate
 299 }