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bd24e6dc | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, 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 | /* $Id$ */ | |
17 | ||
18 | #include "AliAnalysisTaskDiJets.h" | |
19 | #include "AliAODEvent.h" | |
20 | #include "AliAODJet.h" | |
21 | #include "AliAODDiJet.h" | |
22 | #include <TClonesArray.h> | |
23 | #include <TLorentzVector.h> | |
4f49cbd0 | 24 | #include <TStyle.h> |
bd24e6dc | 25 | |
26 | ||
27 | ClassImp(AliAnalysisTaskDiJets) | |
28 | ||
29 | //////////////////////////////////////////////////////////////////////// | |
30 | ||
31 | AliAnalysisTaskDiJets::AliAnalysisTaskDiJets(): | |
32 | AliAnalysisTaskSE(), | |
33 | fDiJets(0), | |
4f49cbd0 | 34 | fDiJetsIn(0), |
7bb870ca | 35 | fUseAODInput(kFALSE), |
863dbf3b | 36 | fFillAOD(kFALSE), |
7bb870ca | 37 | fJetBranch("jets"), |
38 | fAOD(0), | |
4f49cbd0 | 39 | fHistList(0), |
40 | fH1DeltaPt(0), | |
41 | fH1DeltaPhi(0), | |
42 | fH1PhiImbal(0), | |
43 | fH1Asym(0), | |
44 | fH2Pt2vsPt1(0), | |
45 | fH2DifvsSum(0) | |
bd24e6dc | 46 | { |
47 | // Default constructor | |
48 | } | |
49 | ||
4f49cbd0 | 50 | //---------------------------------------------------------------------- |
bd24e6dc | 51 | AliAnalysisTaskDiJets::AliAnalysisTaskDiJets(const char* name): |
52 | AliAnalysisTaskSE(name), | |
53 | fDiJets(0), | |
4f49cbd0 | 54 | fDiJetsIn(0), |
7bb870ca | 55 | fUseAODInput(kFALSE), |
863dbf3b | 56 | fFillAOD(kFALSE), |
7bb870ca | 57 | fJetBranch("jets"), |
58 | fAOD(0), | |
4f49cbd0 | 59 | fHistList(0), |
60 | fH1DeltaPt(0), | |
61 | fH1DeltaPhi(0), | |
62 | fH1PhiImbal(0), | |
63 | fH1Asym(0), | |
64 | fH2Pt2vsPt1(0), | |
65 | fH2DifvsSum(0) | |
bd24e6dc | 66 | { |
67 | // Default constructor | |
4f49cbd0 | 68 | DefineOutput(1, TList::Class()); |
bd24e6dc | 69 | } |
70 | ||
4f49cbd0 | 71 | //---------------------------------------------------------------------- |
bd24e6dc | 72 | void AliAnalysisTaskDiJets::UserCreateOutputObjects() |
73 | { | |
74 | // Create the output container | |
75 | // | |
7bb870ca | 76 | if (fDebug) printf("AnalysisTaskDiJets::CreateOutPutData() \n"); |
bd24e6dc | 77 | fDiJets = new TClonesArray("AliAODDiJet", 0); |
863dbf3b | 78 | if (fFillAOD){ |
7bb870ca | 79 | fDiJets->SetName(Form("dijets_%s",fJetBranch.Data())); |
863dbf3b | 80 | AddAODBranch("TClonesArray", &fDiJets); |
81 | } | |
4f49cbd0 | 82 | |
83 | if (!fHistList) fHistList = new TList(); | |
84 | Float_t pi=TMath::Pi(); | |
85 | gStyle->SetPalette(1); | |
86 | ||
87 | fH1DeltaPt = new TH1F("DeltaPt","Difference between the jets' Pt;#Deltap_{T} (GeV/c);Entries",150,0.,150.); | |
88 | fH1DeltaPt->SetMarkerSize(0.6); | |
89 | fH1DeltaPt->SetMarkerColor(4); | |
90 | fH1DeltaPt->SetMarkerStyle(21); | |
91 | fH1DeltaPt->SetOption("E"); | |
92 | ||
93 | fH1DeltaPhi = new TH1F("DeltaPhi","Difference in the azimuthal angle;#Delta#phi;Entries",100,0.,pi); | |
94 | fH1DeltaPhi->SetMarkerSize(0.6); | |
95 | fH1DeltaPhi->SetMarkerColor(4); | |
96 | fH1DeltaPhi->SetMarkerStyle(21); | |
97 | fH1DeltaPhi->SetOption("E"); | |
98 | ||
99 | fH1PhiImbal = new TH1F("PhiImb","Phi imbalance;#phi;Entries",100,-pi,pi); | |
100 | fH1PhiImbal->SetMarkerSize(0.6); | |
101 | fH1PhiImbal->SetMarkerColor(4); | |
102 | fH1PhiImbal->SetMarkerStyle(21); | |
103 | fH1PhiImbal->SetOption("E"); | |
104 | ||
105 | fH1Asym = new TH1F("Asym","Pt asymmetry;#Deltap_{T}/(p_{T,1}+p_{T,2});Entries",50,0.,1.); | |
106 | fH1Asym->SetMarkerSize(0.6); | |
107 | fH1Asym->SetMarkerColor(4); | |
108 | fH1Asym->SetMarkerStyle(21); | |
109 | fH1Asym->SetOption("E"); | |
110 | ||
111 | fH2Pt2vsPt1 = new TH2F("Pt2vsPt1","Pt2 versus Pt1;p_{T,1} (GeV/c);p_{T,2} (GeV/c)",250,0.,250.,250,0.,250.); | |
112 | fH2Pt2vsPt1->SetOption("cont0"); | |
113 | ||
114 | fH2DifvsSum = new TH2F("DifvsSum","Pt difference vs Pt sum;p_{T,1}+p_{T,2} (GeV/c);#Deltap_{T} (GeV/c)",400,0.,400.,150,0.,150.); | |
115 | fH2DifvsSum->SetOption("cont0"); | |
116 | ||
117 | fHistList->Add(fH1DeltaPt); | |
118 | fHistList->Add(fH1DeltaPhi); | |
119 | fHistList->Add(fH1PhiImbal); | |
120 | fHistList->Add(fH1Asym); | |
121 | fHistList->Add(fH2Pt2vsPt1); | |
122 | fHistList->Add(fH2DifvsSum); | |
bd24e6dc | 123 | } |
124 | ||
4f49cbd0 | 125 | //---------------------------------------------------------------------- |
bd24e6dc | 126 | void AliAnalysisTaskDiJets::Init() |
127 | { | |
128 | // Initialization | |
7bb870ca | 129 | if (fDebug) printf("AnalysisTaskDiJets::Init() \n"); |
bd24e6dc | 130 | } |
131 | ||
4f49cbd0 | 132 | //---------------------------------------------------------------------- |
bd24e6dc | 133 | void AliAnalysisTaskDiJets::UserExec(Option_t */*option*/) |
134 | { | |
135 | // Execute analysis for current event | |
136 | // | |
7bb870ca | 137 | if (fDiJets) fDiJets->Delete(); |
138 | ||
139 | if(fUseAODInput){ | |
01c15c67 | 140 | fAOD = dynamic_cast<AliAODEvent*> (InputEvent()); |
ec365e4a | 141 | if(!fAOD){ |
7bb870ca | 142 | // We do not have an input AOD, look in the output |
ec365e4a | 143 | if (fDebug) printf("%s:%d No AOD event in the input\n",(char*)__FILE__,__LINE__); |
7bb870ca | 144 | return; |
145 | } | |
146 | } else { | |
147 | fAOD = AODEvent(); | |
ec365e4a | 148 | if(!fAOD){ |
149 | if (fDebug) printf("%s:%d AODEvent not found in the Output",(char*)__FILE__,__LINE__); | |
4f49cbd0 | 150 | return; |
151 | } | |
6c3180e0 | 152 | } |
ec365e4a | 153 | |
7bb870ca | 154 | TClonesArray* jets = (TClonesArray*) fAOD->FindListObject(fJetBranch.Data()); |
6c3180e0 | 155 | // N.B. if we take the aod from the output this is always |
156 | // empty and since it is the same as fDiJets | |
7bb870ca | 157 | fDiJetsIn = (TClonesArray*) (fAOD->GetList()->FindObject("dijets")); |
4f49cbd0 | 158 | |
bd24e6dc | 159 | if (fDiJetsIn) { |
7bb870ca | 160 | if (fDebug) printf("Found %d dijets in old list \n", fDiJetsIn->GetEntries()); |
4f49cbd0 | 161 | AliAODJet* jj1, *jj2; |
162 | AliAODDiJet* testJ; | |
163 | ||
164 | if (fDiJetsIn->GetEntries() > 0) { | |
165 | testJ = (AliAODDiJet*) (fDiJetsIn->At(0)); | |
166 | jj1 = testJ->Jet(0); | |
167 | jj1->Print(""); | |
168 | jj2 = testJ->Jet(1); | |
169 | jj2->Print(""); | |
170 | } | |
bd24e6dc | 171 | } |
4f49cbd0 | 172 | |
bd24e6dc | 173 | Int_t nj = jets->GetEntriesFast(); |
7bb870ca | 174 | if (fDebug) printf("There are %5d jets in the event \n", nj); |
4f49cbd0 | 175 | |
b3818fc4 | 176 | if (nj < 2){ |
177 | PostData(1, fHistList); | |
178 | return; | |
179 | } | |
4f49cbd0 | 180 | AliAODJet* jet1 = (AliAODJet*) (jets->At(0)); |
181 | TLorentzVector v1 = *(jet1->MomentumVector()); | |
182 | AliAODJet* jet2 = (AliAODJet*) (jets->At(1)); | |
183 | TLorentzVector v2 = *(jet2->MomentumVector()); | |
184 | TLorentzVector v = v1 + v2; | |
185 | Int_t ndi = fDiJets->GetEntriesFast(); | |
186 | TClonesArray &lref = *fDiJets; | |
187 | new(lref[ndi]) AliAODDiJet(v); | |
188 | AliAODDiJet* dijet = (AliAODDiJet*) (fDiJets->At(ndi)); | |
189 | dijet->SetJetRefs(jet1, jet2); | |
190 | ||
191 | fH1DeltaPt->Fill(jet1->Pt()-jet2->Pt()); | |
192 | fH1DeltaPhi->Fill(dijet->DeltaPhi()); | |
193 | fH1PhiImbal->Fill(dijet->PhiImbalance()); | |
194 | fH1Asym->Fill((jet1->Pt()-jet2->Pt())/(jet1->Pt()+jet2->Pt())); | |
195 | fH2Pt2vsPt1->Fill(jet1->Pt(),jet2->Pt()); | |
196 | fH2DifvsSum->Fill(jet1->Pt()+jet2->Pt(),jet1->Pt()-jet2->Pt()); | |
197 | ||
198 | PostData(1, fHistList); | |
199 | return; | |
bd24e6dc | 200 | } |
201 | ||
4f49cbd0 | 202 | //---------------------------------------------------------------------- |
bd24e6dc | 203 | void AliAnalysisTaskDiJets::Terminate(Option_t */*option*/) |
204 | { | |
205 | // Terminate analysis | |
206 | // | |
7bb870ca | 207 | if (fDebug) printf("AnalysisDiJets: Terminate() \n"); |
bd24e6dc | 208 | } |
209 |