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734d2c12 | 1 | #include "TChain.h" |
2 | #include "TTree.h" | |
3 | #include "TList.h" | |
4 | #include "TH2F.h" | |
5 | #include "TCanvas.h" | |
6 | #include "TLorentzVector.h" | |
7 | ||
8 | #include "AliAnalysisTask.h" | |
9 | #include "AliAnalysisManager.h" | |
10 | ||
11 | #include "AliESDEvent.h" | |
12 | #include "AliESDInputHandler.h" | |
13 | ||
14 | #include "PWG2spectra/SPECTRA/AliProtonAnalysis.h" | |
15 | #include "AliAnalysisTaskProtons.h" | |
16 | ||
17 | // Analysis task creating a the 2d y-p_t spectrum of p and antip | |
18 | // Author: Panos Cristakoglou | |
19 | ||
20 | ClassImp(AliAnalysisTaskProtons) | |
21 | ||
22 | //________________________________________________________________________ | |
23 | AliAnalysisTaskProtons::AliAnalysisTaskProtons(const char *name) | |
24 | : AliAnalysisTask(name, ""), fESD(0), fList(0), fAnalysis(0) { | |
25 | // Constructor | |
26 | ||
27 | // Define input and output slots here | |
28 | // Input slot #0 works with a TChain | |
29 | DefineInput(0, TChain::Class()); | |
30 | // Output slot #0 writes into a TList container | |
31 | DefineOutput(0, TList::Class()); | |
32 | } | |
33 | ||
34 | //________________________________________________________________________ | |
35 | void AliAnalysisTaskProtons::ConnectInputData(Option_t *) { | |
36 | // Connect ESD or AOD here | |
37 | // Called once | |
38 | ||
39 | TTree* tree = dynamic_cast<TTree*> (GetInputData(0)); | |
40 | if (!tree) { | |
41 | Printf("ERROR: Could not read chain from input slot 0"); | |
42 | } else { | |
43 | // Disable all branches and enable only the needed ones | |
44 | // The next two lines are different when data produced as AliESDEvent is read | |
45 | tree->SetBranchStatus("*", kFALSE); | |
46 | tree->SetBranchStatus("fTracks.*", kTRUE); | |
47 | ||
48 | AliESDInputHandler *esdH = dynamic_cast<AliESDInputHandler*> (AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()); | |
49 | ||
50 | if (!esdH) { | |
51 | Printf("ERROR: Could not get ESDInputHandler"); | |
52 | } else | |
53 | fESD = esdH->GetEvent(); | |
54 | } | |
55 | } | |
56 | ||
57 | //________________________________________________________________________ | |
58 | void AliAnalysisTaskProtons::CreateOutputObjects() { | |
59 | // Create histograms | |
60 | // Called once | |
61 | Double_t partFrac[5] = {0.01, 0.01, 0.85, 0.10, 0.05}; | |
62 | ||
63 | fAnalysis = new AliProtonAnalysis(); | |
64 | fAnalysis->InitHistograms(10,-1.0,1.0,30,0.1,3.1); | |
65 | fAnalysis->SetMinTPCClusters(50); | |
66 | fAnalysis->SetMinITSClusters(1); | |
67 | fAnalysis->SetMaxChi2PerTPCCluster(3.5); | |
68 | fAnalysis->SetMaxCov11(2.0); | |
69 | fAnalysis->SetMaxCov22(2.0); | |
70 | fAnalysis->SetMaxCov33(0.5); | |
71 | fAnalysis->SetMaxCov44(0.5); | |
72 | fAnalysis->SetMaxCov55(2.0); | |
73 | fAnalysis->SetMaxSigmaToVertex(3.); | |
74 | fAnalysis->SetITSRefit(); | |
75 | fAnalysis->SetTPCRefit(); | |
76 | fAnalysis->SetPriorProbabilities(partFrac); | |
77 | } | |
78 | ||
79 | //________________________________________________________________________ | |
80 | void AliAnalysisTaskProtons::Exec(Option_t *) { | |
81 | // Main loop | |
82 | // Called for each event | |
83 | ||
84 | if (!fESD) { | |
85 | Printf("ERROR: fESD not available"); | |
86 | return; | |
87 | } | |
88 | ||
89 | Printf("Task2: There are %d tracks in this event", fESD->GetNumberOfTracks()); | |
90 | fAnalysis->Analyze(fESD); | |
91 | fList = new TList(); | |
92 | fList->Add(fAnalysis->GetProtonYPtHistogram()); | |
93 | fList->Add(fAnalysis->GetAntiProtonYPtHistogram()); | |
94 | ||
95 | // Post output data. | |
96 | PostData(0, fList); | |
97 | } | |
98 | ||
99 | //________________________________________________________________________ | |
100 | void AliAnalysisTaskProtons::Terminate(Option_t *) { | |
101 | // Draw result to the screen | |
102 | // Called once at the end of the query | |
103 | ||
104 | fList = dynamic_cast<TList*> (GetOutputData(0)); | |
105 | if (!fList) { | |
106 | Printf("ERROR: fList not available"); | |
107 | return; | |
108 | } | |
109 | ||
110 | TH2F *fHistYPtProtons = (TH2F *)fList->At(0); | |
111 | TH2F *fHistYPtAntiProtons = (TH2F *)fList->At(1); | |
112 | ||
113 | TCanvas *c2 = new TCanvas("c2","p-\bar{p}",200,0,800,400); | |
114 | c2->SetFillColor(10); c2->SetHighLightColor(10); c2->Divide(2,1); | |
115 | ||
116 | c2->cd(1)->SetLeftMargin(0.15); c2->cd(1)->SetBottomMargin(0.15); | |
117 | if (fHistYPtProtons) fHistYPtProtons->DrawCopy("colz"); | |
118 | c2->cd(2)->SetLeftMargin(0.15); c2->cd(2)->SetBottomMargin(0.15); | |
119 | if (fHistYPtAntiProtons) fHistYPtAntiProtons->DrawCopy("colz"); | |
120 | } | |
121 | ||
122 |