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3ec50490 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2007, 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 | // AliAnalysisTask for the reconstruction of heavy flavor | |
19 | // decays, using the class AliAnalysisVertexingHF. | |
20 | // | |
21 | // Author: J.Faivre, julien.faivre@pd.infn.it | |
22 | ///////////////////////////////////////////////////////////// | |
23 | ||
24 | #include <TROOT.h> | |
25 | #include <TChain.h> | |
26 | #include <TCanvas.h> | |
27 | #include <TSystem.h> | |
28 | #include "Riostream.h" | |
29 | ||
30 | #include "AliAnalysisTask.h" | |
31 | #include "AliESDEvent.h" | |
32 | #include "AliAnalysisVertexingHF.h" | |
33 | #include "AliAnalysisTaskVertexingHF.h" | |
34 | ||
35 | ClassImp(AliAnalysisTaskVertexingHF) | |
36 | ||
37 | ||
38 | //________________________________________________________________________ | |
39 | AliAnalysisTaskVertexingHF::AliAnalysisTaskVertexingHF(const char *name) : | |
40 | AliAnalysisTask(name,""), | |
41 | fESD(0), | |
42 | fChain(0), | |
43 | vHF(0), | |
44 | mTrees(0) | |
45 | { | |
46 | //Constructor | |
47 | ||
48 | //Input slot #0 works with an Ntuple | |
49 | DefineInput(0, TChain::Class()); | |
50 | //Output slots 0 to 3 write into a TTree | |
51 | DefineOutput(0, TTree::Class()); | |
52 | DefineOutput(1, TTree::Class()); | |
53 | DefineOutput(2, TTree::Class()); | |
54 | DefineOutput(3, TTree::Class()); | |
55 | } | |
56 | //________________________________________________________________________ | |
57 | void AliAnalysisTaskVertexingHF::ConnectInputData(Option_t *) | |
58 | { | |
59 | //Implementation of AliAnalysisTask::ConnectInputData | |
60 | ||
61 | Info("ConnectInputData","ConnectInputData of task %s\n",GetName()); | |
62 | fChain = (TChain*)GetInputData(0); | |
63 | ||
64 | fESD = new AliESDEvent(); | |
65 | fESD->ReadFromTree(fChain); | |
66 | ||
67 | return; | |
68 | } | |
69 | //________________________________________________________________________ | |
70 | void AliAnalysisTaskVertexingHF::CreateOutputObjects() | |
71 | { | |
72 | //Implementation of AliAnalysisTask::CreateOutputObjects | |
73 | //4 output trees (D0 in 2-prongs, J/Psi to e+e-, 3-prongs (D+, Ds, /\c), D0 in 4-prongs) | |
74 | ||
75 | mTrees = new TTree[4]; | |
76 | AliAODRecoDecayHF2Prong *rd2=0; | |
77 | AliAODRecoDecayHF3Prong *rd3=0; | |
78 | AliAODRecoDecayHF4Prong *rd4=0; | |
79 | mTrees[0].SetName("NameD0toKpi"); | |
80 | mTrees[0].SetTitle("TitleD0toKpi"); | |
81 | mTrees[1].SetName("NameJPSItoEle"); | |
82 | mTrees[1].SetTitle("TitleJPSItoEle"); | |
83 | mTrees[2].SetName("NameCharmto3Prong"); | |
84 | mTrees[2].SetTitle("TitleCharmto3Prong"); | |
85 | mTrees[3].SetName("NameD0to4Prong"); | |
86 | mTrees[3].SetTitle("TitleD0to4Prong"); | |
87 | mTrees[0].Branch("D0toKpi","AliAODRecoDecayHF2Prong",&rd2); | |
88 | mTrees[1].Branch("JPSItoEle","AliAODRecoDecayHF2Prong",&rd2); | |
89 | mTrees[2].Branch("Charmto3Prong","AliAODRecoDecayHF3Prong",&rd3); | |
90 | mTrees[3].Branch("D0to4Prong","AliAODRecoDecayHF4Prong",&rd4); | |
91 | ||
92 | return; | |
93 | } | |
94 | //________________________________________________________________________ | |
95 | void AliAnalysisTaskVertexingHF::LocalInit() | |
96 | { | |
97 | //Instanciates vHF and loads its parameters | |
98 | ||
99 | gROOT->LoadMacro("ConfigVertexingHF.C"); | |
100 | ||
101 | vHF = (AliAnalysisVertexingHF*)gROOT->ProcessLine("ConfigVertexingHF()"); | |
102 | vHF->PrintStatus(); | |
103 | ||
104 | return; | |
105 | } | |
106 | //________________________________________________________________________ | |
107 | void AliAnalysisTaskVertexingHF::Exec(Option_t *) | |
108 | { | |
109 | //Performs heavy flavor vertexing | |
110 | ||
111 | //Transition to new ESD format (from AliRoot v4-06 ?) : | |
112 | fESD->GetAliESDOld(); | |
113 | if (fESD->GetAliESDOld()) fESD->CopyFromOldESD(); | |
114 | ||
115 | //Heavy flavor vertexing : | |
116 | vHF->FindCandidates(fESD,mTrees); | |
117 | ||
118 | //Post final data. It will be written to a file with option "RECREATE" | |
119 | PostData(0, &mTrees[0]); | |
120 | PostData(1, &mTrees[1]); | |
121 | PostData(2, &mTrees[2]); | |
122 | PostData(3, &mTrees[3]); | |
123 | ||
124 | return; | |
125 | } | |
126 | //________________________________________________________________________ | |
127 | void AliAnalysisTaskVertexingHF::Terminate(Option_t *) | |
128 | { | |
129 | //Implementation of AliAnalysisTask::Terminate | |
130 | ||
131 | return; | |
132 | } | |
133 | ||
134 | ||
135 | ||
136 | ||
137 | ||
138 | ||
139 | ||
140 | ||
141 |