1 /**************************************************************************
2 * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 //-----------------------------------------------------------------
17 // AliAnalysisTaskSpectraAOD class
18 //-----------------------------------------------------------------
26 #include "AliAnalysisTask.h"
27 #include "AliAnalysisManager.h"
28 #include "AliAODTrack.h"
29 #include "AliAODMCParticle.h"
30 #include "AliVParticle.h"
31 #include "AliAODEvent.h"
32 #include "AliAODInputHandler.h"
33 #include "AliAnalysisTaskSpectraAOD.h"
34 #include "AliAnalysisTaskESDfilter.h"
35 #include "AliAnalysisDataContainer.h"
36 #include "AliSpectraAODHistoManager.h"
37 #include "AliSpectraAODTrackCuts.h"
38 #include "AliSpectraAODEventCuts.h"
39 #include "AliCentrality.h"
42 #include "AliVEvent.h"
43 #include "AliPIDResponse.h"
45 #include "AliSpectraAODPID.h"
46 #include <TMCProcess.h>
53 using namespace AliSpectraNameSpace;
56 ClassImp(AliAnalysisTaskSpectraAOD) // EX1 This stuff tells root to implement the streamer, inspector methods etc (we discussed about it today)
58 //________________________________________________________________________
59 AliAnalysisTaskSpectraAOD::AliAnalysisTaskSpectraAOD(const char *name) : AliAnalysisTaskSE(name), fAOD(0), fHistMan(0), fTrackCuts(0), fEventCuts(0), fPID(0), fIsMC(0), fNRebin(0)
61 // Default constructor
63 DefineInput(0, TChain::Class());
64 DefineOutput(1, AliSpectraAODHistoManager::Class());
65 DefineOutput(2, AliSpectraAODEventCuts::Class());
66 DefineOutput(3, AliSpectraAODTrackCuts::Class());
67 DefineOutput(4, AliSpectraAODPID::Class());
71 //________________________________________________________________________
72 //________________________________________________________________________
73 void AliAnalysisTaskSpectraAOD::UserCreateOutputObjects()
75 // create output objects
76 fHistMan = new AliSpectraAODHistoManager("SpectraHistos",fNRebin);
78 if (!fTrackCuts) AliFatal("Track Cuts should be set in the steering macro");
79 if (!fEventCuts) AliFatal("Event Cuts should be set in the steering macro");
80 if (!fPID) AliFatal("PID object should be set in the steering macro");
82 PostData(1, fHistMan );
83 PostData(2, fEventCuts);
84 PostData(3, fTrackCuts);
88 //________________________________________________________________________
89 void AliAnalysisTaskSpectraAOD::UserExec(Option_t *)
93 fAOD = dynamic_cast<AliAODEvent*>(fInputEvent);
95 AliWarning("ERROR: AliAODEvent not available \n");
99 if (strcmp(fAOD->ClassName(), "AliAODEvent"))
101 AliFatal("Not processing AODs");
104 if(!fEventCuts->IsSelected(fAOD,fTrackCuts))return;//event selection
106 //AliCentrality fAliCentral*;
107 // if ((fAOD->GetCentrality())->GetCentralityPercentile("V0M") > 5.) return;
109 // First do MC to fill up the MC particle array, such that we can use it later
110 TClonesArray *arrayMC = 0;
113 arrayMC = (TClonesArray*) fAOD->GetList()->FindObject(AliAODMCParticle::StdBranchName());
115 AliFatal("Error: MC particles branch not found!\n");
117 Int_t nMC = arrayMC->GetEntries();
118 for (Int_t iMC = 0; iMC < nMC; iMC++)
120 AliAODMCParticle *partMC = (AliAODMCParticle*) arrayMC->At(iMC);
121 if(!partMC->Charge()) continue;//Skip neutrals
122 //if(partMC->Eta() > fTrackCuts->GetEtaMin() && partMC->Eta() < fTrackCuts->GetEtaMax()){//charged hadron are filled inside the eta acceptance
123 //Printf("%f %f-%f",partMC->Eta(),fTrackCuts->GetEtaMin(),fTrackCuts->GetEtaMax());
124 if(partMC->Eta() < fTrackCuts->GetEtaMin() || partMC->Eta() > fTrackCuts->GetEtaMax())continue;//ETA CUT ON GENERATED!!!!!!!!!!!!!!!!!!!!!!!!!!
125 fHistMan->GetPtHistogram(kHistPtGen)->Fill(partMC->Pt(),partMC->IsPhysicalPrimary());
128 if(TMath::Abs(partMC->Y()) > fTrackCuts->GetY() ) continue;
129 // check for true PID + and fill P_t histos
130 Int_t charge = partMC->Charge() > 0 ? kChPos : kChNeg ;
131 Int_t id = fPID->GetParticleSpecie(partMC);
132 if(id != kSpUndefined) {
133 fHistMan->GetHistogram2D(kHistPtGenTruePrimary,id,charge)->Fill(partMC->Pt(),partMC->IsPhysicalPrimary());
138 Double_t mass[3]={1.39570000000000000e-01,4.93676999999999977e-01,9.38271999999999995e-01};//FIXME masses to be taken from AliHelperPID
139 //main loop on tracks
140 for (Int_t iTracks = 0; iTracks < fAOD->GetNumberOfTracks(); iTracks++) {
141 AliAODTrack* track = fAOD->GetTrack(iTracks);
142 if (!fTrackCuts->IsSelected(track,kTRUE)) continue;
144 fPID->FillQAHistos(fHistMan, track, fTrackCuts);
146 //calculate DCA for AOD track
147 Double_t dca=track->DCA();
148 if(dca==-999.){// track->DCA() does not work in old AOD production
149 Double_t d[2], covd[3];
150 AliAODTrack* track_clone=(AliAODTrack*)track->Clone("track_clone"); // need to clone because PropagateToDCA updates the track parameters
151 Bool_t isDCA = track_clone->PropagateToDCA(fAOD->GetPrimaryVertex(),fAOD->GetMagneticField(),9999.,d,covd);
153 if(!isDCA)d[0]=-999.;
156 fHistMan->GetPtHistogram(kHistPtRec)->Fill(track->Pt(),dca); // PT histo
158 // get identity and charge
159 Int_t idRec = fPID->GetParticleSpecie(fHistMan,track, fTrackCuts);
161 Int_t charge = track->Charge() > 0 ? kChPos : kChNeg;
163 // Fill histograms, only if inside y and nsigma acceptance
164 if(idRec != kSpUndefined){
165 if(fTrackCuts->CheckYCut (mass[idRec]))fHistMan->GetHistogram2D(kHistPtRecSigma,idRec,charge)->Fill(track->Pt(),dca);
166 }//can't put a continue because we still have to fill allcharged primaries, done later
170 AliAODMCParticle *partMC = (AliAODMCParticle*) arrayMC->At(TMath::Abs(track->GetLabel()));
172 AliError("Cannot get MC particle");
175 // Check if it is primary, secondary from material or secondary from weak decay
176 Bool_t isPrimary = partMC->IsPhysicalPrimary();
177 Bool_t isSecondaryMaterial = kFALSE;
178 Bool_t isSecondaryWeak = kFALSE;
180 Int_t mfl=-999,codemoth=-999;
181 Int_t indexMoth=partMC->GetMother(); // FIXME ignore fakes? TO BE CHECKED, on ESD is GetFirstMother()
182 if(indexMoth>=0){//is not fake
183 AliAODMCParticle* moth = (AliAODMCParticle*) arrayMC->At(indexMoth);
184 codemoth = TMath::Abs(moth->GetPdgCode());
185 mfl = Int_t (codemoth/ TMath::Power(10, Int_t(TMath::Log10(codemoth))));
187 //Int_t uniqueID = partMC->GetUniqueID();
188 //cout<<"uniqueID: "<<partMC->GetUniqueID()<<" "<<kPDecay<<endl;
189 //cout<<"status: "<<partMC->GetStatus()<<" "<<kPDecay<<endl;
190 // if(uniqueID == kPDecay)Printf("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
191 if(mfl==3) isSecondaryWeak = kTRUE; // add if(partMC->GetStatus() & kPDecay)? FIXME
192 else isSecondaryMaterial = kTRUE;
195 if (isPrimary)fHistMan->GetPtHistogram(kHistPtRecPrimary)->Fill(track->Pt(),dca); // PT histo of primaries
197 //nsigma cut (reconstructed nsigma)
198 if(idRec == kSpUndefined) continue;
200 // rapidity cut (reconstructed pt and identity)
201 if(!fTrackCuts->CheckYCut (mass[idRec])) continue;
204 Int_t idGen = fPID->GetParticleSpecie(partMC);
205 //if(TMath::Abs(partMC->Y()) > fTrackCuts->GetY() ) continue; // FIXME: do we need a rapidity cut on the generated?
206 // Fill histograms for primaries
208 if (idRec == idGen) fHistMan->GetHistogram2D(kHistPtRecTrue, idGen, charge)->Fill(track->Pt(),dca);
211 fHistMan ->GetHistogram2D(kHistPtRecSigmaPrimary, idRec, charge)->Fill(track->Pt(),dca);
212 if(idGen != kSpUndefined) {
213 fHistMan ->GetHistogram2D(kHistPtRecPrimary, idGen, charge)->Fill(track->Pt(),dca);
214 if (idRec == idGen) fHistMan->GetHistogram2D(kHistPtRecTruePrimary, idGen, charge)->Fill(track->Pt(),dca);
217 //25th Apr - Muons are added to Pions -- FIXME
218 if ( partMC->PdgCode() == 13 && idRec == kSpPion) {
219 fHistMan->GetPtHistogram(kHistPtRecTrueMuonPlus)->Fill(track->Pt(),dca);
221 fHistMan->GetPtHistogram(kHistPtRecTruePrimaryMuonPlus)->Fill(track->Pt(),dca);
223 if ( partMC->PdgCode() == -13 && idRec == kSpPion) {
224 fHistMan->GetPtHistogram(kHistPtRecTrueMuonMinus)->Fill(track->Pt(),dca);
226 fHistMan->GetPtHistogram(kHistPtRecTruePrimaryMuonMinus)->Fill(track->Pt(),dca);
233 if(isSecondaryWeak ) fHistMan->GetHistogram2D(kHistPtRecSigmaSecondaryWeakDecay, idRec, charge)->Fill(track->Pt(),dca);
234 if(isSecondaryMaterial) fHistMan->GetHistogram2D(kHistPtRecSigmaSecondaryMaterial , idRec, charge)->Fill(track->Pt(),dca);
237 } // end loop on tracks
239 PostData(1, fHistMan );
240 PostData(2, fEventCuts);
241 PostData(3, fTrackCuts);
245 //_________________________________________________________________
246 void AliAnalysisTaskSpectraAOD::Terminate(Option_t *)