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ffbede40 | 1 | /************************************************************************* |
2 | * Copyright(c) 1998-2009, 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 | /////////////////////////////////////////////////////////////////////////// | |
17 | // // | |
18 | // Basic Analysis Task // | |
19 | // // | |
20 | /////////////////////////////////////////////////////////////////////////// | |
21 | ||
22 | #include <TChain.h> | |
23 | #include <TH1D.h> | |
24 | ||
25 | #include <AliCFContainer.h> | |
26 | #include <AliInputEventHandler.h> | |
ffbede40 | 27 | #include <AliAnalysisManager.h> |
28 | #include <AliVEvent.h> | |
29 | ||
30 | #include "AliDielectron.h" | |
31 | #include "AliDielectronHistos.h" | |
32 | #include "AliDielectronCF.h" | |
33 | #include "AliDielectronMC.h" | |
34 | #include "AliAnalysisTaskDielectronME.h" | |
35 | ||
36 | ClassImp(AliAnalysisTaskDielectronME) | |
37 | ||
38 | //_________________________________________________________________________________ | |
39 | AliAnalysisTaskDielectronME::AliAnalysisTaskDielectronME() : | |
40 | AliAnalysisTaskME(), | |
41 | fListDielectron(), | |
42 | fListHistos(), | |
43 | fListCF(), | |
44 | fPoolDepth(2), | |
45 | fSelectPhysics(kFALSE), | |
46 | fTriggerMask(AliVEvent::kMB), | |
47 | fEventStat(0x0) | |
48 | { | |
49 | // | |
50 | // Constructor | |
51 | // | |
52 | } | |
53 | ||
54 | //_________________________________________________________________________________ | |
55 | AliAnalysisTaskDielectronME::AliAnalysisTaskDielectronME(const char *name) : | |
56 | AliAnalysisTaskME(name), | |
57 | fListDielectron(), | |
58 | fListHistos(), | |
59 | fListCF(), | |
60 | fPoolDepth(2), | |
61 | fSelectPhysics(kFALSE), | |
62 | fTriggerMask(AliVEvent::kMB), | |
63 | fEventStat(0x0) | |
64 | { | |
65 | // | |
66 | // Constructor | |
67 | // | |
68 | DefineInput(0,TChain::Class()); | |
69 | DefineOutput(1, TList::Class()); | |
70 | DefineOutput(2, TList::Class()); | |
71 | DefineOutput(3, TH1D::Class()); | |
72 | fListHistos.SetName("Dielectron_Histos_Multi"); | |
73 | fListCF.SetName("Dielectron_CF_Multi"); | |
74 | } | |
75 | ||
76 | ||
77 | //_________________________________________________________________________________ | |
78 | void AliAnalysisTaskDielectronME::UserCreateOutputObjects() | |
79 | { | |
80 | // | |
81 | // Add all histogram manager histogram lists to the output TList | |
82 | // | |
83 | ||
84 | if (!fListHistos.IsEmpty()||!fListCF.IsEmpty()) return; //already initialised | |
85 | ||
86 | TIter nextDie(&fListDielectron); | |
87 | AliDielectron *die=0; | |
88 | while ( (die=static_cast<AliDielectron*>(nextDie())) ){ | |
89 | die->Init(); | |
90 | if (die->GetHistogramList()) fListHistos.Add(const_cast<THashList*>(die->GetHistogramList())); | |
91 | if (die->GetCFManagerPair()) fListCF.Add(const_cast<AliCFContainer*>(die->GetCFManagerPair()->GetContainer())); | |
92 | } | |
93 | ||
94 | Int_t cuts=fListDielectron.GetEntries(); | |
95 | Int_t nbins=2+2*cuts; | |
96 | if (!fEventStat){ | |
97 | fEventStat=new TH1D("hEventStat","Event statistics",nbins,0,nbins); | |
98 | fEventStat->GetXaxis()->SetBinLabel(1,"Before Phys. Sel."); | |
99 | fEventStat->GetXaxis()->SetBinLabel(2,"After Phys. Sel."); | |
100 | for (Int_t i=0; i<cuts; ++i){ | |
101 | fEventStat->GetXaxis()->SetBinLabel(3+2*i,Form("#splitline{1 candidate}{%s}",fListDielectron.At(i)->GetName())); | |
102 | fEventStat->GetXaxis()->SetBinLabel(4+2*i,Form("#splitline{With >1 candidate}{%s}",fListDielectron.At(i)->GetName())); | |
103 | } | |
104 | } | |
105 | ||
106 | PostData(1, &fListHistos); | |
107 | PostData(2, &fListCF); | |
108 | PostData(3, fEventStat); | |
109 | } | |
110 | ||
111 | //_________________________________________________________________________________ | |
112 | void AliAnalysisTaskDielectronME::UserExec(Option_t *) | |
113 | { | |
114 | // | |
115 | // Main loop. Called for every event | |
116 | // | |
117 | ||
118 | if (fListHistos.IsEmpty()&&fListCF.IsEmpty()) return; | |
119 | ||
120 | AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager(); | |
5720c765 | 121 | AliInputEventHandler* inputHandler = (AliInputEventHandler*) (man->GetInputEventHandler()); |
122 | if (!inputHandler) return; | |
123 | ||
124 | if ( inputHandler->GetPIDResponse() ){ | |
125 | AliDielectronVarManager::SetPIDResponse( inputHandler->GetPIDResponse() ); | |
ffbede40 | 126 | } else { |
5720c765 | 127 | AliFatal("This task needs the PID response attached to the input event handler!"); |
128 | } | |
129 | ||
ffbede40 | 130 | // Was event selected ? |
ffbede40 | 131 | UInt_t isSelected = AliVEvent::kAny; |
132 | if( fSelectPhysics && inputHandler && inputHandler->GetEventSelection() ) { | |
133 | isSelected = inputHandler->IsEventSelected(); | |
134 | isSelected&=fTriggerMask; | |
135 | } | |
136 | ||
137 | //Before physics selection | |
138 | fEventStat->Fill(0.); | |
139 | if (isSelected==0) { | |
140 | PostData(3,fEventStat); | |
141 | return; | |
142 | } | |
143 | //after physics selection | |
144 | fEventStat->Fill(1.); | |
145 | ||
146 | //bz for AliKF | |
147 | Double_t bz = GetEvent(0)->GetMagneticField(); | |
148 | AliKFParticle::SetField( bz ); | |
149 | ||
150 | //Process event in all AliDielectron instances | |
151 | TIter nextDie(&fListDielectron); | |
152 | AliDielectron *die=0; | |
153 | Int_t idie=0; | |
154 | while ( (die=static_cast<AliDielectron*>(nextDie())) ){ | |
155 | for (Int_t evt1=0; evt1<fPoolDepth-1; evt1++){ | |
156 | for (Int_t evt2=evt1+1; evt2<fPoolDepth; evt2++){ | |
157 | die->Process((AliESDEvent*)GetEvent(evt1),(AliESDEvent*)GetEvent(evt2)); | |
158 | if (die->HasCandidates()){ | |
159 | Int_t ncandidates=die->GetPairArray(1)->GetEntriesFast(); | |
160 | if (ncandidates==1) fEventStat->Fill(3+2*idie); | |
161 | else if (ncandidates>1) fEventStat->Fill(4+2*idie); | |
162 | } | |
163 | } | |
164 | } | |
165 | ++idie; | |
166 | } | |
167 | ||
168 | PostData(1, &fListHistos); | |
169 | PostData(2, &fListCF); | |
170 | PostData(3,fEventStat); | |
171 | } | |
172 | ||
173 | //_________________________________________________________________________________ | |
174 | void AliAnalysisTaskDielectronME::FinishTaskOutput() | |
175 | { | |
176 | // | |
177 | // Write debug tree | |
178 | // | |
179 | TIter nextDie(&fListDielectron); | |
180 | AliDielectron *die=0; | |
181 | while ( (die=static_cast<AliDielectron*>(nextDie())) ){ | |
182 | die->SaveDebugTree(); | |
183 | } | |
184 | } | |
185 |