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0de9de87 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2008, 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 | // AliAnalysisTaskSE for the selection of heavy flavor | |
19 | // decay candidates and creation a stand-alone AOD. | |
20 | // | |
21 | // Author: A.Dainese, andrea.dainese@lnl.infn.it | |
22 | ///////////////////////////////////////////////////////////// | |
23 | ||
24 | #include <TClonesArray.h> | |
25 | ||
26 | #include "AliAODEvent.h" | |
27 | #include "AliAODVertex.h" | |
28 | #include "AliAODTrack.h" | |
29 | #include "AliAODRecoDecayHF2Prong.h" | |
12bfc069 | 30 | #include "AliAnalysisVertexingHF.h" |
0de9de87 | 31 | #include "AliAnalysisTaskSE.h" |
32 | #include "AliAnalysisTaskSESelectHF.h" | |
33 | ||
34 | ClassImp(AliAnalysisTaskSESelectHF) | |
35 | ||
36 | ||
37 | //________________________________________________________________________ | |
38 | AliAnalysisTaskSESelectHF::AliAnalysisTaskSESelectHF(): | |
39 | AliAnalysisTaskSE(), | |
40 | fVerticesHFTClArr(0), | |
12bfc069 | 41 | fD0toKpiTClArr(0), |
42 | fVHF(0) | |
0de9de87 | 43 | { |
44 | // Default constructor | |
0de9de87 | 45 | } |
46 | ||
47 | //________________________________________________________________________ | |
48 | AliAnalysisTaskSESelectHF::AliAnalysisTaskSESelectHF(const char *name): | |
49 | AliAnalysisTaskSE(name), | |
50 | fVerticesHFTClArr(0), | |
12bfc069 | 51 | fD0toKpiTClArr(0), |
52 | fVHF(0) | |
0de9de87 | 53 | { |
54 | // Default constructor | |
0de9de87 | 55 | } |
56 | ||
57 | //________________________________________________________________________ | |
58 | AliAnalysisTaskSESelectHF::~AliAnalysisTaskSESelectHF() | |
59 | { | |
60 | // Destructor | |
12bfc069 | 61 | |
62 | if (fVHF) { | |
63 | delete fVHF; | |
64 | fVHF = 0; | |
65 | } | |
66 | ||
0de9de87 | 67 | } |
68 | ||
69 | //________________________________________________________________________ | |
70 | void AliAnalysisTaskSESelectHF::Init() | |
71 | { | |
72 | // Initialization | |
73 | ||
74 | if(fDebug > 1) printf("AnalysisTaskSESelectHF::Init() \n"); | |
75 | ||
12bfc069 | 76 | gROOT->LoadMacro("ConfigVertexingHF.C"); |
77 | ||
78 | fVHF = (AliAnalysisVertexingHF*)gROOT->ProcessLine("ConfigVertexingHF()"); | |
79 | fVHF->PrintStatus(); | |
80 | ||
0de9de87 | 81 | return; |
82 | } | |
83 | ||
84 | //________________________________________________________________________ | |
85 | void AliAnalysisTaskSESelectHF::UserCreateOutputObjects() | |
86 | { | |
87 | // Create the output container | |
88 | // | |
89 | if(fDebug > 1) printf("AnalysisTaskSESelectHF::UserCreateOutputObjects() \n"); | |
90 | ||
91 | fVerticesHFTClArr = new TClonesArray("AliAODVertex", 0); | |
92 | fVerticesHFTClArr->SetName("VerticesHF"); | |
080ac6fd | 93 | AddAODBranch("TClonesArray", &fVerticesHFTClArr); |
0de9de87 | 94 | |
95 | fD0toKpiTClArr = new TClonesArray("AliAODRecoDecayHF2Prong", 0); | |
96 | fD0toKpiTClArr->SetName("D0toKpi"); | |
080ac6fd | 97 | AddAODBranch("TClonesArray", &fD0toKpiTClArr); |
0de9de87 | 98 | |
99 | return; | |
100 | } | |
101 | ||
102 | //________________________________________________________________________ | |
103 | void AliAnalysisTaskSESelectHF::UserExec(Option_t */*option*/) | |
104 | { | |
105 | // Execute analysis for current event: | |
106 | // heavy flavor candidates selection and histograms | |
107 | ||
108 | AliAODEvent *aodIn = dynamic_cast<AliAODEvent*> (InputEvent()); | |
109 | ||
110 | // load D0->Kpi candidates | |
111 | TClonesArray *inputArrayD0toKpi = | |
112 | (TClonesArray*)aodIn->GetList()->FindObject("D0toKpi"); | |
0bd2832b | 113 | if(!inputArrayD0toKpi) { |
114 | printf("AliAnalysisTaskSESelectHF::UserExec: D0toKpi branch not found!\n"); | |
115 | return; | |
116 | } | |
0de9de87 | 117 | |
118 | //print event info | |
0bd2832b | 119 | //aodIn->GetHeader()->Print(); |
0de9de87 | 120 | |
121 | // primary vertex | |
122 | AliAODVertex *vtx1 = (AliAODVertex*)aodIn->GetPrimaryVertex(); | |
0bd2832b | 123 | //vtx1->Print(); |
0de9de87 | 124 | |
125 | // make trkIDtoEntry register (temporary) | |
126 | Int_t trkIDtoEntry[100000]; | |
127 | for(Int_t it=0;it<aodIn->GetNumberOfTracks();it++) { | |
128 | AliAODTrack *track = aodIn->GetTrack(it); | |
129 | trkIDtoEntry[track->GetID()]=it; | |
130 | } | |
131 | ||
132 | Int_t iOutVerticesHF=0,iOutD0toKpi=0; | |
133 | fVerticesHFTClArr->Delete(); | |
134 | iOutVerticesHF = fVerticesHFTClArr->GetEntriesFast(); | |
135 | TClonesArray &verticesHFRef = *fVerticesHFTClArr; | |
136 | fD0toKpiTClArr->Delete(); | |
137 | iOutD0toKpi = fD0toKpiTClArr->GetEntriesFast(); | |
138 | TClonesArray &aodD0toKpiRef = *fD0toKpiTClArr; | |
139 | ||
140 | ||
141 | // loop over D0->Kpi candidates | |
142 | Int_t nInD0toKpi = inputArrayD0toKpi->GetEntriesFast(); | |
143 | printf("Number of D0->Kpi: %d\n",nInD0toKpi); | |
144 | ||
145 | for (Int_t iD0toKpi = 0; iD0toKpi < nInD0toKpi; iD0toKpi++) { | |
146 | AliAODRecoDecayHF2Prong *dIn = (AliAODRecoDecayHF2Prong*)inputArrayD0toKpi->UncheckedAt(iD0toKpi); | |
147 | Bool_t unsetvtx=kFALSE; | |
148 | if(!dIn->GetOwnPrimaryVtx()) { | |
149 | dIn->SetOwnPrimaryVtx(vtx1); // needed to compute all variables | |
150 | unsetvtx=kTRUE; | |
151 | } | |
152 | Int_t okD0=0,okD0bar=0; | |
12bfc069 | 153 | if(dIn->SelectD0(fVHF->GetD0toKpiCuts(),okD0,okD0bar)) { |
0de9de87 | 154 | // get daughter AOD tracks |
2a57ff58 | 155 | AliAODTrack *trk0 = (AliAODTrack*)dIn->GetDaughter(0); |
156 | AliAODTrack *trk1 = (AliAODTrack*)dIn->GetDaughter(1); | |
157 | if(!trk0 || !trk1) { | |
158 | trk0=aodIn->GetTrack(trkIDtoEntry[dIn->GetProngID(0)]); | |
159 | trk1=aodIn->GetTrack(trkIDtoEntry[dIn->GetProngID(1)]); | |
160 | } | |
0de9de87 | 161 | printf("pt of positive track: %f\n",trk0->Pt()); |
162 | printf("pt of negative track: %f\n",trk1->Pt()); | |
0bd2832b | 163 | // HERE ONE COULD RECALCULATE THE VERTEX USING THE KF PACKAGE |
0de9de87 | 164 | |
165 | // clone candidate for output AOD | |
166 | AliAODVertex *v = new(verticesHFRef[iOutVerticesHF++]) | |
167 | AliAODVertex(*(dIn->GetSecondaryVtx())); | |
0de9de87 | 168 | AliAODRecoDecayHF2Prong *dOut=new(aodD0toKpiRef[iOutD0toKpi++]) |
2a57ff58 | 169 | AliAODRecoDecayHF2Prong(*dIn); |
170 | dOut->SetSecondaryVtx(v); | |
0bd2832b | 171 | dOut->SetOwnPrimaryVtx((AliAODVertex*)((dIn->GetOwnPrimaryVtx())->Clone())); |
b0ebe389 | 172 | v->SetParent(dOut); |
0de9de87 | 173 | } |
174 | if(unsetvtx) dIn->UnsetOwnPrimaryVtx(); | |
175 | } // end loop on D0->Kpi | |
176 | ||
0bd2832b | 177 | printf("Number of selected D0->Kpi: %d\n",iOutD0toKpi); |
178 | ||
0de9de87 | 179 | |
180 | return; | |
181 | } | |
182 | ||
183 | //________________________________________________________________________ | |
184 | void AliAnalysisTaskSESelectHF::Terminate(Option_t */*option*/) | |
185 | { | |
186 | // Terminate analysis | |
187 | // | |
188 | if(fDebug > 1) printf("AnalysisTaskSESelectHF: Terminate() \n"); | |
189 | } | |
190 |