eta selection fixed
[u/mrichter/AliRoot.git] / 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(100),
67   fnNchBins(200),
68   fIsQvecCalibMode(0),
69   fQvecUpperLim(100)
70 {
71   // Default constructor
72   DefineInput(0, TChain::Class());
73   DefineOutput(1, TList::Class());
74   DefineOutput(2, AliSpectraAODEventCuts::Class());
75   DefineOutput(3, AliSpectraAODTrackCuts::Class());
76   DefineOutput(4, AliHelperPID::Class());
77 }
78
79 //________________________________________________________________________
80 void AliAnalysisTaskSpectraAllChAOD::UserCreateOutputObjects()
81 {
82   // create output objects
83   fOutput=new TList();
84   fOutput->SetOwner();
85   fOutput->SetName("fOutput");
86   
87   if (!fTrackCuts) AliFatal("Track Cuts should be set in the steering macro");
88   if (!fEventCuts) AliFatal("Event Cuts should be set in the steering macro");
89   if (!fHelperPID)  AliFatal("HelperPID should be set in the steering macro");
90   
91   // binning common to all the THn
92   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.};
93   const Int_t nptBins=26;
94   
95   //dimensions of THnSparse for tracks
96   const Int_t nvartrk=7;
97   //                                             pt          cent          Q vec     IDrec      IDgen       isph         y
98   Int_t    binsHistRealTrk[nvartrk] = {      nptBins, fnCentBins,     fnQvecBins,        4,        3,         2,        2};
99   Double_t xminHistRealTrk[nvartrk] = {         0.,          0.,              0.,       -.5,      -0.5,      -0.5,    -0.5};
100   Double_t xmaxHistRealTrk[nvartrk] = {       10.,       100., fQvecUpperLim,      3.5,      2.5,       1.5,     0.5};    
101   THnSparseF* NSparseHistTrk = new THnSparseF("NSparseHistTrk","NSparseHistTrk",nvartrk,binsHistRealTrk,xminHistRealTrk,xmaxHistRealTrk);
102   NSparseHistTrk->GetAxis(0)->SetTitle("#it{p}_{T,rec}");
103   NSparseHistTrk->GetAxis(0)->SetName("pT_rec");
104   NSparseHistTrk->SetBinEdges(0,ptBins);
105   NSparseHistTrk->GetAxis(1)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
106   NSparseHistTrk->GetAxis(1)->SetName(Form("%s_cent",fEventCuts->GetCentralityMethod().Data()));
107   NSparseHistTrk->GetAxis(2)->SetTitle("Q vec");
108   NSparseHistTrk->GetAxis(2)->SetName("Q_vec");
109   NSparseHistTrk->GetAxis(3)->SetTitle("ID rec");
110   NSparseHistTrk->GetAxis(3)->SetName("ID_rec");
111   NSparseHistTrk->GetAxis(4)->SetTitle("ID gen");
112   NSparseHistTrk->GetAxis(4)->SetName("ID_gen");
113   NSparseHistTrk->GetAxis(5)->SetTitle("isph");
114   NSparseHistTrk->GetAxis(5)->SetName("isph");
115   NSparseHistTrk->GetAxis(6)->SetTitle("y");
116   NSparseHistTrk->GetAxis(6)->SetName("y");
117   fOutput->Add(NSparseHistTrk);
118   
119   //dimensions of THnSparse for stack
120   const Int_t nvarst=6;
121   //                                             pt          cent    IDgen        isph        y    etaselected
122   Int_t    binsHistRealSt[nvarst] = {      nptBins,  fnCentBins,        3,         2,        2,             1};
123   Double_t xminHistRealSt[nvarst] = {         0.,           0.,      -0.5,      -0.5,    -0.5,            0.5};
124   Double_t xmaxHistRealSt[nvarst] = {       10.,        100.,      2.5,       1.5,      0.5,           1.5};
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   NSparseHistSt->GetAxis(5)->SetTitle("etaselected");
138   NSparseHistSt->GetAxis(5)->SetName("etaselected");
139   fOutput->Add(NSparseHistSt);
140   
141   //dimensions of THnSparse for the normalization
142   const Int_t nvarev=3;
143   //                                             cent             Q vec                Nch
144   Int_t    binsHistRealEv[nvarev] = {    fnCentBins,      fnQvecBins,           fnNchBins};
145   Double_t xminHistRealEv[nvarev] = {           0.,               0.,                   0.};
146   Double_t xmaxHistRealEv[nvarev] = {       100.,  fQvecUpperLim,               2000.};
147   THnSparseF* NSparseHistEv = new THnSparseF("NSparseHistEv","NSparseHistEv",nvarev,binsHistRealEv,xminHistRealEv,xmaxHistRealEv);
148   NSparseHistEv->GetAxis(0)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
149   NSparseHistEv->GetAxis(0)->SetName(Form("%s_cent",fEventCuts->GetCentralityMethod().Data()));
150   NSparseHistEv->GetAxis(1)->SetTitle("Q vec");
151   NSparseHistEv->GetAxis(1)->SetName("Q_vec");
152   NSparseHistEv->GetAxis(2)->SetTitle("N charged");
153   NSparseHistEv->GetAxis(2)->SetName("N_ch");
154   fOutput->Add(NSparseHistEv);
155   
156   PostData(1, fOutput  );
157   PostData(2, fEventCuts);
158   PostData(3, fTrackCuts);
159   PostData(4, fHelperPID);
160 }
161
162 //________________________________________________________________________
163
164 void AliAnalysisTaskSpectraAllChAOD::UserExec(Option_t *)
165 {
166   //Printf("An event");
167   // main event loop
168   fAOD = dynamic_cast<AliAODEvent*>(fInputEvent);
169   if (!fAOD) {
170     AliWarning("ERROR: AliAODEvent not available \n");
171     return;
172   }
173   
174   if (strcmp(fAOD->ClassName(), "AliAODEvent"))
175     {
176       AliFatal("Not processing AODs");
177     }
178   
179   if(!fEventCuts->IsSelected(fAOD,fTrackCuts))return;//event selection
180
181   //Default TPC priors
182   if(fHelperPID->GetPIDType()==kBayes)fHelperPID->GetPIDCombined()->SetDefaultTPCPriors();//FIXME maybe this can go in the UserCreateOutputObject?
183   
184   Double_t Qvec=0.;//in case of MC we save space in the memory
185   if(!fIsMC){
186     if(fIsQvecCalibMode){
187       if(fVZEROside==0)Qvec=fEventCuts->GetqV0A();
188       else if (fVZEROside==1)Qvec=fEventCuts->GetqV0C();
189     }
190     else Qvec=fEventCuts->GetQvecPercentile(fVZEROside);
191   }
192   
193   Double_t Cent=fEventCuts->GetCent();
194   
195   // First do MC to fill up the MC particle array
196   TClonesArray *arrayMC = 0;
197   if (fIsMC)
198     {
199       arrayMC = (TClonesArray*) fAOD->GetList()->FindObject(AliAODMCParticle::StdBranchName());
200       if (!arrayMC) {
201         AliFatal("Error: MC particles branch not found!\n");
202       }
203       Int_t nMC = arrayMC->GetEntries();
204       for (Int_t iMC = 0; iMC < nMC; iMC++)
205         {
206           AliAODMCParticle *partMC = (AliAODMCParticle*) arrayMC->At(iMC);
207           if(!partMC->Charge()) continue;//Skip neutrals
208           if(fCharge != 0 && partMC->Charge()*fCharge < 0.) continue;//if fCharge != 0 only select fCharge
209           
210           //flag to select particle in the same ETA acceptance of the tracks (to be used for the comparison with AllCh)
211           Double_t etaselected=-1.;
212           if(partMC->Eta()>=fTrackCuts->GetEtaMin() && partMC->Eta()<=fTrackCuts->GetEtaMax())etaselected=1.;
213           
214           //pt     cent    IDgen        isph        y
215           Double_t varSt[6];
216           varSt[0]=partMC->Pt();
217           varSt[1]=Cent;
218           varSt[2]=(Double_t)fHelperPID->GetParticleSpecies(partMC);
219           varSt[3]=(Double_t)partMC->IsPhysicalPrimary();
220           varSt[4]=partMC->Y();
221           varSt[5]=etaselected;
222           ((THnSparseF*)fOutput->FindObject("NSparseHistSt"))->Fill(varSt);//stack loop
223           
224           //Printf("a particle");
225           
226         }
227     }
228   
229   //main loop on tracks
230   
231   Int_t Nch = 0.;
232   
233   for (Int_t iTracks = 0; iTracks < fAOD->GetNumberOfTracks(); iTracks++) {
234     AliAODTrack* track = fAOD->GetTrack(iTracks);
235     if(fCharge != 0 && track->Charge() != fCharge) continue;//if fCharge != 0 only select fCharge 
236     if (!fTrackCuts->IsSelected(track,kTRUE)) continue; //track selection (rapidity selection NOT in the standard cuts)
237     if(!fFillOnlyEvents){
238       Int_t IDrec=fHelperPID->GetParticleSpecies(track,kTRUE);//id from detector
239       Double_t y= track->Y(fHelperPID->GetMass((AliHelperParticleSpecies_t)IDrec));
240       Int_t IDgen=kSpUndefined;//set if MC
241       Int_t isph=-999;
242       //Int_t iswd=-999;
243       
244       if (arrayMC) {
245         AliAODMCParticle *partMC = (AliAODMCParticle*) arrayMC->At(TMath::Abs(track->GetLabel()));
246         if (!partMC) { 
247           AliError("Cannot get MC particle");
248           continue; 
249         }
250         IDgen=fHelperPID->GetParticleSpecies(partMC);
251         isph=partMC->IsPhysicalPrimary();
252         //iswd=partMC->IsSecondaryFromWeakDecay();//FIXME not working on old productions - removed Apr 8th 2014
253       }
254       
255     //pt     cent    Q vec     IDrec     IDgen       isph      y
256       Double_t varTrk[7];
257       varTrk[0]=track->Pt();
258       varTrk[1]=Cent;
259       varTrk[2]=Qvec;
260       varTrk[3]=(Double_t)IDrec;
261       varTrk[4]=(Double_t)IDgen;
262       varTrk[5]=(Double_t)isph;
263       varTrk[6]=y;
264       ((THnSparseF*)fOutput->FindObject("NSparseHistTrk"))->Fill(varTrk);//track loop
265       
266       //for nsigma PID fill double counting of ID
267       if(fHelperPID->GetPIDType()<kBayes && fDoDoubleCounting){//only nsigma
268         Bool_t *HasDC;
269         HasDC=fHelperPID->GetDoubleCounting(track,kTRUE);//get the array with double counting
270         for(Int_t ipart=0;ipart<kNSpecies;ipart++){
271           if(HasDC[ipart]==kTRUE){
272             varTrk[3]=(Double_t)ipart;
273             ((THnSparseF*)fOutput->FindObject("NSparseHistTrk"))->Fill(varTrk);//track loop
274           }
275         }
276       }
277       
278       //fill all charged (3)
279       varTrk[3]=3.;
280       varTrk[4]=3.;
281       ((THnSparseF*)fOutput->FindObject("NSparseHistTrk"))->Fill(varTrk);//track loop
282     }//end if fFillOnlyEvents
283     
284     //Printf("a track");
285       
286     Nch++;
287   } // end loop on tracks
288   
289   Double_t varEv[3];
290   varEv[0]=Cent;
291   varEv[1]=Qvec;
292   varEv[2]=Nch;
293   ((THnSparseF*)fOutput->FindObject("NSparseHistEv"))->Fill(varEv);//event loop
294   
295   PostData(1, fOutput  );
296   PostData(2, fEventCuts);
297   PostData(3, fTrackCuts);
298   PostData(4, fHelperPID);
299 }
300
301 //_________________________________________________________________
302 void   AliAnalysisTaskSpectraAllChAOD::Terminate(Option_t *)
303 {
304   // Terminate
305 }