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8d3b4eb1 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, 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 | // JetDistributions class | |
18 | // Get different basic distributions | |
19 | // Authors: mercedes.lopez.noriega@cern.ch | |
20 | //--------------------------------------------------------------------- | |
21 | ||
22 | #include "AliJetDistributions.h" | |
23 | ClassImp(AliJetDistributions) | |
24 | ||
25 | //////////////////////////////////////////////////////////////////////// | |
26 | // includes | |
27 | #include <Riostream.h> | |
28 | #include <TH1F.h> | |
29 | #include <TH2F.h> | |
30 | #include <TFile.h> | |
31 | #include <TTree.h> | |
32 | #include <TMath.h> | |
33 | ||
34 | #include "AliJetProductionDataPDC2004.h" | |
35 | #include "AliJet.h" | |
36 | #include "AliJetKineReaderHeader.h" | |
37 | #include "AliJetESDReaderHeader.h" | |
38 | #include "AliLeading.h" | |
39 | ||
40 | //////////////////////////////////////////////////////////////////////// | |
41 | // constructor/destructor | |
42 | ||
43 | AliJetDistributions::AliJetDistributions() | |
44 | { | |
45 | // Constructor | |
46 | fDirectory = 0x0; | |
47 | fFile = "jets.root"; | |
48 | fEventMin = 0; | |
49 | fEventMax = -1; | |
50 | fRunMin = 0; | |
51 | fRunMax = 11; | |
52 | fPercentage = -1.0; | |
53 | SetReaderHeader(); | |
54 | ||
55 | fPart = 0; | |
56 | fGenJ = 0; | |
57 | fRecJ = 0; | |
58 | ||
59 | fRetaH = 0; | |
60 | fRphiH = 0; | |
61 | fRptH = 0; | |
62 | fRetaphiH = 0; | |
63 | ||
64 | fMultH = 0; | |
65 | ||
66 | // for Analize() | |
67 | fPythia = kFALSE; | |
68 | fDoPart = kTRUE; | |
69 | fDoGenJ = kTRUE; | |
70 | fDoRecJ = kTRUE; | |
71 | ||
72 | } | |
73 | ||
74 | //////////////////////////////////////////////////////////////////////// | |
75 | // define histogrames | |
76 | ||
77 | void AliJetDistributions::DefineHistograms() | |
78 | { | |
79 | // Define histograms to be used | |
80 | fRetaH = new TH1F("fRetaH","Reconstructed eta",140,-1.2,1.2); | |
81 | SetProperties(fRetaH,"#eta","entries"); | |
82 | fRphiH = new TH1F("fRphiH","Reconstructed phi",18,0,2.0*TMath::Pi()); | |
83 | SetProperties(fRphiH,"#phi","entries"); | |
84 | fRptH = new TH1F("fRptH","Reconstructed pt",150,0,150); | |
85 | SetProperties(fRptH,"p_{T} (GeV/c)","entries"); | |
86 | ||
87 | fRetaphiH = new TH2F("fRetaphiH","Reconstructed eta vs. phi",140,-1.2,1.2,18,0.,2.0*TMath::Pi()); | |
88 | SetProperties(fRetaphiH,"#eta","#phi"); | |
89 | ||
90 | fMultH = new TH1F("fMultH","Reconstructed Multiplicity",1000,0,10000); | |
91 | SetProperties(fMultH,"Multiplicity","entries"); | |
92 | } | |
93 | ||
94 | void AliJetDistributions::SetProperties(TH1* h,const char* x, const char* y) const | |
95 | { | |
96 | // Properties of histograms (x title, y title and error propagation) | |
97 | h->SetXTitle(x); | |
98 | h->SetYTitle(y); | |
99 | h->Sumw2(); | |
100 | } | |
101 | ||
102 | //////////////////////////////////////////////////////////////////////// | |
103 | // fill histogrames | |
104 | ||
105 | void AliJetDistributions::FillHistograms() | |
106 | { | |
107 | // Run data | |
108 | AliJetProductionDataPDC2004* runData = new AliJetProductionDataPDC2004(); | |
109 | ||
110 | // Loop over runs | |
111 | TFile* jFile = 0x0; | |
112 | for (Int_t iRun = fRunMin; iRun <= fRunMax; iRun++) { | |
113 | char fn[20]; | |
114 | sprintf(fn,"%s/%s.root",fDirectory,(runData->GetRunTitle(iRun)).Data()); | |
115 | jFile = new TFile(fn); | |
116 | printf(" Analyzing run: %d %s\n", iRun,fn); | |
117 | ||
118 | // Get reader header and events to be looped over | |
119 | AliJetReaderHeader *jReaderH = (AliJetReaderHeader*)(jFile->Get(fReaderHeader)); | |
120 | if (fEventMin == -1) fEventMin = jReaderH->GetFirstEvent(); | |
121 | if (fEventMax == -1) { | |
122 | fEventMax = jReaderH->GetLastEvent(); | |
123 | } else { | |
124 | fEventMax = TMath::Min(fEventMax, jReaderH->GetLastEvent()); | |
125 | } | |
126 | ||
127 | //AliUA1JetHeader *jH = (AliUA1JetHeader *) (jFile->Get("AliUA1JetHeader")); | |
128 | //jH->PrintParameters(); | |
129 | ||
130 | ||
131 | // Loop over events | |
132 | for (Int_t i = fEventMin; i < fEventMax; i++) { | |
133 | //printf(" Analyzing run: %d Event %d / %d \n",iRun, i, fEventMax); | |
134 | ||
135 | // Get next tree with AliJet | |
136 | char nameT[100]; | |
137 | sprintf(nameT, "TreeJ%d",i); | |
138 | TTree *jetT =(TTree *)(jFile->Get(nameT)); | |
139 | if (fDoRecJ) jetT->SetBranchAddress("FoundJet", &fRecJ); | |
140 | if (fDoGenJ) jetT->SetBranchAddress("GenJet", &fGenJ); | |
141 | if (fDoPart) jetT->SetBranchAddress("LeadingPart", &fPart); | |
142 | ||
143 | jetT->GetEntry(0); | |
144 | ||
145 | FillDistributions(fRecJ); | |
146 | ||
147 | delete jetT; | |
148 | } // end loop over events in one file | |
149 | if (jFile) jFile->Close(); | |
150 | delete jFile; | |
151 | } // end loop over files | |
152 | } | |
153 | ||
154 | void AliJetDistributions::FillDistributions(AliJet *j) | |
155 | { | |
156 | // Fill histrograms | |
157 | TArrayI inJet = j->GetInJet(); | |
158 | TArrayF etain = j->GetEtaIn(); | |
159 | TArrayF ptin = j->GetPtIn(); | |
160 | TArrayF phiin = j->GetPhiIn(); | |
161 | ||
162 | fMultH->Fill(inJet.GetSize(),1); | |
163 | for(Int_t i=0;i<inJet.GetSize();i++) { | |
164 | fRetaH->Fill(etain[i],1); | |
165 | fRphiH->Fill(phiin[i],1); | |
166 | fRptH->Fill(ptin[i],1); | |
167 | fRetaphiH->Fill(etain[i],phiin[i],1); | |
168 | } | |
169 | } | |
170 | ||
171 | //////////////////////////////////////////////////////////////////////// | |
172 | // Plot histogrames | |
173 | ||
174 | void AliJetDistributions::PlotHistograms() | |
175 | { | |
176 | // improved! | |
177 | fMultH->Draw(); | |
178 | fRetaH->Draw(); | |
179 | fRphiH->Draw(); | |
180 | fRetaphiH->Draw(); | |
181 | fRptH->Draw(); | |
182 | ||
183 | } | |
184 | ||
185 | ||
186 | //////////////////////////////////////////////////////////////////////// | |
187 | // Save histogrames | |
188 | ||
189 | void AliJetDistributions::SaveHistograms() | |
190 | { | |
191 | // Save histogramas | |
192 | TFile *fOut = new TFile(fFile,"recreate"); | |
193 | fOut->cd(); | |
194 | fMultH->Write(); | |
195 | fRetaphiH->Write(); | |
196 | fRetaH->Write(); | |
197 | fRphiH->Write(); | |
198 | fRptH->Write(); | |
199 | fOut->Close(); | |
200 | } | |
201 | ||
202 | // main Analysis function | |
203 | ||
204 | void AliJetDistributions::Analyze() | |
205 | { | |
206 | // Do the analysis | |
207 | DefineHistograms(); | |
208 | FillHistograms(); | |
209 | PlotHistograms(); | |
210 | SaveHistograms(); | |
211 | } | |
212 | ||
213 |