1 // $Id: AliAnalysisTaskEmcalJet.cxx 56756 2012-05-30 05:03:02Z loizides $
3 // Emcal jet analysis base task.
7 #include "AliAnalysisTaskEmcalJet.h"
10 #include <TClonesArray.h>
14 #include "AliAnalysisManager.h"
15 #include "AliCentrality.h"
16 #include "AliEMCALGeometry.h"
17 #include "AliESDEvent.h"
18 #include "AliEmcalJet.h"
20 #include "AliRhoParameter.h"
21 #include "AliVCluster.h"
22 #include "AliVEventHandler.h"
23 #include "AliVParticle.h"
25 ClassImp(AliAnalysisTaskEmcalJet)
27 //________________________________________________________________________
28 AliAnalysisTaskEmcalJet::AliAnalysisTaskEmcalJet() :
29 AliAnalysisTaskEmcal("AliAnalysisTaskEmcalJet"),
45 // Default constructor.
48 //________________________________________________________________________
49 AliAnalysisTaskEmcalJet::AliAnalysisTaskEmcalJet(const char *name, Bool_t histo) :
50 AliAnalysisTaskEmcal(name, histo),
66 // Standard constructor.
69 //________________________________________________________________________
70 AliAnalysisTaskEmcalJet::~AliAnalysisTaskEmcalJet()
75 //________________________________________________________________________
76 Bool_t AliAnalysisTaskEmcalJet::AcceptBiasJet(AliEmcalJet *jet) const
78 // Accept jet with a bias.
80 if (jet->MaxTrackPt() < fPtBiasJetTrack && (fAnaType == kTPC || jet->MaxClusterPt() < fPtBiasJetClus))
86 //________________________________________________________________________
87 Bool_t AliAnalysisTaskEmcalJet::AcceptJet(AliEmcalJet *jet, Bool_t bias, Bool_t upCut) const
89 // Return true if jet is accepted.
91 if (jet->Pt() <= fJetPtCut)
93 if (jet->Area() <= fJetAreaCut)
95 if (bias && !AcceptBiasJet(jet))
97 if (upCut && (jet->MaxTrackPt() > fMaxTrackPt || jet->MaxClusterPt() > fMaxClusterPt))
100 return (Bool_t)(jet->Eta() > fMinEta && jet->Eta() < fMaxEta && jet->Phi() > fMinPhi && jet->Phi() < fMaxPhi);
103 //________________________________________________________________________
104 AliRhoParameter *AliAnalysisTaskEmcalJet::GetRhoFromEvent(const char *name)
106 // Get rho from event.
108 AliRhoParameter *rho = 0;
110 if (!sname.IsNull()) {
111 rho = dynamic_cast<AliRhoParameter*>(InputEvent()->FindListObject(sname));
113 AliWarning(Form("%s: Could not retrieve rho with name %s!", GetName(), name));
120 //________________________________________________________________________
121 void AliAnalysisTaskEmcalJet::ExecOnce()
123 // Init the analysis.
125 if (fPercAreaCut >= 0) {
126 if (fJetAreaCut >= 0)
127 AliInfo(Form("%s: jet area cut will be calculated as a percentage of the average area, given value will be overwritten", GetName()));
128 fJetAreaCut = fPercAreaCut * fJetRadius * fJetRadius * TMath::Pi();
131 if (fAnaType == kTPC) {
132 SetEtaLimits(-0.9 + fJetRadius, 0.9 - fJetRadius);
133 SetPhiLimits(-10, 10);
134 } else if (fAnaType == kEMCAL || fAnaType == kTPCSmall || fAnaType == kEMCALOnly) {
135 AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance();
137 SetEtaLimits(geom->GetArm1EtaMin() + fJetRadius, geom->GetArm1EtaMax() - fJetRadius);
138 SetPhiLimits(geom->GetArm1PhiMin() * TMath::DegToRad() + fJetRadius, geom->GetArm1PhiMax() * TMath::DegToRad() - fJetRadius);
141 AliWarning(Form("%s: Can not create geometry", GetName()));
144 AliWarning(Form("%s: Analysis type not recognized! Assuming kTPC!", GetName()));
150 if (fAnaType == kTPCSmall)
153 AliAnalysisTaskEmcal::ExecOnce();
156 //________________________________________________________________________
157 Bool_t AliAnalysisTaskEmcalJet::IsJetCluster(AliEmcalJet* jet, Int_t iclus, Bool_t sorted) const
159 // Return true if cluster is in jet.
161 for (Int_t i = 0; i < jet->GetNumberOfClusters(); ++i) {
162 Int_t ijetclus = jet->ClusterAt(i);
163 if (sorted && ijetclus > iclus)
165 if (ijetclus == iclus)
171 //________________________________________________________________________
172 Bool_t AliAnalysisTaskEmcalJet::IsJetTrack(AliEmcalJet* jet, Int_t itrack, Bool_t sorted) const
174 // Return true if track is in jet.
176 for (Int_t i = 0; i < jet->GetNumberOfTracks(); ++i) {
177 Int_t ijettrack = jet->TrackAt(i);
178 if (sorted && ijettrack > itrack)
180 if (ijettrack == itrack)
186 //________________________________________________________________________
187 Bool_t AliAnalysisTaskEmcalJet::RetrieveEventObjects()
189 // Retrieve objects from event.
191 if (!AliAnalysisTaskEmcal::RetrieveEventObjects())
194 if (!fJetsName.IsNull() && !fJets) {
195 fJets = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(fJetsName));
197 AliError(Form("%s: Could not retrieve jets %s!", GetName(), fJetsName.Data()));
200 else if (!fJets->GetClass()->GetBaseClass("AliEmcalJet")) {
201 AliError(Form("%s: Collection %s does not contain AliEmcalJet objects!", GetName(), fJetsName.Data()));