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734d2c12 | 1 | #include "TChain.h" |
2 | #include "TTree.h" | |
3 | #include "TList.h" | |
4 | #include "TH2F.h" | |
aafecd8b | 5 | #include "TF1.h" |
734d2c12 | 6 | #include "TCanvas.h" |
7 | #include "TLorentzVector.h" | |
8 | ||
9 | #include "AliAnalysisTask.h" | |
10 | #include "AliAnalysisManager.h" | |
11 | ||
12 | #include "AliESDEvent.h" | |
13 | #include "AliESDInputHandler.h" | |
14 | ||
15 | #include "PWG2spectra/SPECTRA/AliProtonAnalysis.h" | |
16 | #include "AliAnalysisTaskProtons.h" | |
17 | ||
18 | // Analysis task creating a the 2d y-p_t spectrum of p and antip | |
19 | // Author: Panos Cristakoglou | |
20 | ||
21 | ClassImp(AliAnalysisTaskProtons) | |
22 | ||
23 | //________________________________________________________________________ | |
24 | AliAnalysisTaskProtons::AliAnalysisTaskProtons(const char *name) | |
aafecd8b | 25 | : AliAnalysisTask(name, ""), fESD(0), fList(0), fAnalysis(0), |
26 | fElectronFunction(0), fMuonFunction(0), | |
27 | fPionFunction(0), fKaonFunction(0), fProtonFunction(0), | |
28 | fFunctionUsed(kFALSE) { | |
734d2c12 | 29 | // Constructor |
30 | ||
31 | // Define input and output slots here | |
32 | // Input slot #0 works with a TChain | |
33 | DefineInput(0, TChain::Class()); | |
34 | // Output slot #0 writes into a TList container | |
35 | DefineOutput(0, TList::Class()); | |
36 | } | |
37 | ||
38 | //________________________________________________________________________ | |
39 | void AliAnalysisTaskProtons::ConnectInputData(Option_t *) { | |
40 | // Connect ESD or AOD here | |
41 | // Called once | |
42 | ||
43 | TTree* tree = dynamic_cast<TTree*> (GetInputData(0)); | |
44 | if (!tree) { | |
45 | Printf("ERROR: Could not read chain from input slot 0"); | |
46 | } else { | |
47 | // Disable all branches and enable only the needed ones | |
48 | // The next two lines are different when data produced as AliESDEvent is read | |
49 | tree->SetBranchStatus("*", kFALSE); | |
50 | tree->SetBranchStatus("fTracks.*", kTRUE); | |
51 | ||
52 | AliESDInputHandler *esdH = dynamic_cast<AliESDInputHandler*> (AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()); | |
53 | ||
54 | if (!esdH) { | |
55 | Printf("ERROR: Could not get ESDInputHandler"); | |
56 | } else | |
57 | fESD = esdH->GetEvent(); | |
58 | } | |
59 | } | |
60 | ||
61 | //________________________________________________________________________ | |
62 | void AliAnalysisTaskProtons::CreateOutputObjects() { | |
63 | // Create histograms | |
64 | // Called once | |
65 | Double_t partFrac[5] = {0.01, 0.01, 0.85, 0.10, 0.05}; | |
66 | ||
67 | fAnalysis = new AliProtonAnalysis(); | |
68 | fAnalysis->InitHistograms(10,-1.0,1.0,30,0.1,3.1); | |
69 | fAnalysis->SetMinTPCClusters(50); | |
70 | fAnalysis->SetMinITSClusters(1); | |
71 | fAnalysis->SetMaxChi2PerTPCCluster(3.5); | |
72 | fAnalysis->SetMaxCov11(2.0); | |
73 | fAnalysis->SetMaxCov22(2.0); | |
74 | fAnalysis->SetMaxCov33(0.5); | |
75 | fAnalysis->SetMaxCov44(0.5); | |
76 | fAnalysis->SetMaxCov55(2.0); | |
77 | fAnalysis->SetMaxSigmaToVertex(3.); | |
78 | fAnalysis->SetITSRefit(); | |
79 | fAnalysis->SetTPCRefit(); | |
aafecd8b | 80 | if(fFunctionUsed) |
81 | fAnalysis->SetPriorProbabilityFunctions(fElectronFunction, | |
82 | fMuonFunction, | |
83 | fPionFunction, | |
84 | fKaonFunction, | |
85 | fProtonFunction); | |
86 | else | |
87 | fAnalysis->SetPriorProbabilities(partFrac); | |
734d2c12 | 88 | } |
89 | ||
90 | //________________________________________________________________________ | |
91 | void AliAnalysisTaskProtons::Exec(Option_t *) { | |
92 | // Main loop | |
93 | // Called for each event | |
94 | ||
95 | if (!fESD) { | |
96 | Printf("ERROR: fESD not available"); | |
97 | return; | |
98 | } | |
99 | ||
100 | Printf("Task2: There are %d tracks in this event", fESD->GetNumberOfTracks()); | |
101 | fAnalysis->Analyze(fESD); | |
102 | fList = new TList(); | |
103 | fList->Add(fAnalysis->GetProtonYPtHistogram()); | |
104 | fList->Add(fAnalysis->GetAntiProtonYPtHistogram()); | |
105 | ||
106 | // Post output data. | |
107 | PostData(0, fList); | |
108 | } | |
109 | ||
110 | //________________________________________________________________________ | |
111 | void AliAnalysisTaskProtons::Terminate(Option_t *) { | |
112 | // Draw result to the screen | |
113 | // Called once at the end of the query | |
114 | ||
115 | fList = dynamic_cast<TList*> (GetOutputData(0)); | |
116 | if (!fList) { | |
117 | Printf("ERROR: fList not available"); | |
118 | return; | |
119 | } | |
120 | ||
121 | TH2F *fHistYPtProtons = (TH2F *)fList->At(0); | |
122 | TH2F *fHistYPtAntiProtons = (TH2F *)fList->At(1); | |
123 | ||
124 | TCanvas *c2 = new TCanvas("c2","p-\bar{p}",200,0,800,400); | |
125 | c2->SetFillColor(10); c2->SetHighLightColor(10); c2->Divide(2,1); | |
126 | ||
127 | c2->cd(1)->SetLeftMargin(0.15); c2->cd(1)->SetBottomMargin(0.15); | |
128 | if (fHistYPtProtons) fHistYPtProtons->DrawCopy("colz"); | |
129 | c2->cd(2)->SetLeftMargin(0.15); c2->cd(2)->SetBottomMargin(0.15); | |
130 | if (fHistYPtAntiProtons) fHistYPtAntiProtons->DrawCopy("colz"); | |
131 | } | |
132 | ||
133 |