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99e5fe42 | 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 | ||
9edefa04 | 16 | /* $Id$ */ |
17 | ||
99e5fe42 | 18 | //--------------------------------------------------------------------- |
19 | // Jet Control Plots class | |
20 | // manages histograms with control plots of jet searching | |
21 | // Stores the output of a jet algorithm | |
22 | // Author: jgcn@mda.cinvestav.mx | |
23 | //--------------------------------------------------------------------- | |
24 | ||
99e5fe42 | 25 | #include <TCanvas.h> |
99e5fe42 | 26 | #include <TH1D.h> |
9edefa04 | 27 | #include <TH1I.h> |
28 | #include <TMath.h> | |
29 | #include <TStyle.h> | |
30 | ||
99e5fe42 | 31 | #include "AliJetReader.h" |
32 | #include "AliJet.h" | |
33 | ||
34 | #include "AliJetControlPlots.h" | |
35 | ClassImp(AliJetControlPlots) | |
36 | ||
37 | //////////////////////////////////////////////////////////////////////// | |
38 | ||
1b7d5d7e | 39 | AliJetControlPlots::AliJetControlPlots(): |
40 | fNJetsH(0), | |
41 | fMultH(0), | |
42 | fPtH(0), | |
43 | fEtaH(0), | |
44 | fEneH(0), | |
45 | fFragH(0), | |
46 | fFragLnH(0), | |
47 | fFragrH(0), | |
48 | fFragLnrH(0), | |
49 | fShapeH(0), | |
50 | fShaperH(0), | |
51 | fPhiH(0), | |
52 | fInJetH(0), | |
53 | fNJetT(0) | |
54 | ||
99e5fe42 | 55 | { |
1b7d5d7e | 56 | // Default constructor |
99e5fe42 | 57 | |
83a444b1 | 58 | // general properties |
99e5fe42 | 59 | fNJetsH = new TH1I("fNJetsH","Number of Jets",12,0,11); |
60 | SetProperties(fNJetsH,"Number of jets","Entries"); | |
61 | ||
62 | fMultH = new TH1I("fMultH","Multiplicity of Jets",22,0,21); | |
63 | SetProperties(fMultH,"Multiplicity of jets","Entries"); | |
64 | ||
83a444b1 | 65 | fInJetH = new TH1D("fInJetH","Percentage of particles in jets",50,0,1); |
66 | SetProperties(fInJetH,"percentage of particles in jets","Entries"); | |
67 | ||
68 | // kinematics | |
99e5fe42 | 69 | fPtH = new TH1D("fPtH","Pt of Jets",50,0.,200.); |
70 | SetProperties(fPtH,"P_{t} [GeV]","Entries"); | |
71 | ||
72 | fEtaH = new TH1D("fEtaH","Pseudorapidity of Jets",30,-1.5,1.5); | |
73 | SetProperties(fEtaH,"#eta","Entries"); | |
74 | ||
75 | fEneH = new TH1D("fEneH","Energy of Jets",50,0.,200.); | |
76 | SetProperties(fEneH,"Energy [GeV]","Entries"); | |
77 | ||
99e5fe42 | 78 | fPhiH = new TH1D("fPhiH","Azimuthal angle of Jets", |
83a444b1 | 79 | 60,0.,2.0*TMath::Pi()); |
99e5fe42 | 80 | SetProperties(fPhiH,"#phi","Entries"); |
83a444b1 | 81 | |
82 | // fragmentation | |
83 | fFragH = new TH1D("fFragH","Leading Jet Fragmentation (selected tracks)", | |
84 | 20,0.,1.); | |
85 | SetProperties(fFragH,"x=E_{i}/E_{JET}","1/N_{JET}dN_{ch}/dx"); | |
86 | ||
87 | fFragrH = new TH1D("fFragrH","Leading Jet Fragmentation (rejected tracks)", | |
88 | 20,0.,1.); | |
89 | SetProperties(fFragrH,"x=E_{i}/E_{JET}","1/N_{JET}dN_{ch}/dx"); | |
90 | ||
91 | // fragmentation log | |
92 | fFragLnH = new TH1D("fFragLnH","Leading Jet Fragmentation (selected tracks)", | |
93 | 20,0.,10); | |
94 | SetProperties(fFragLnH,"#xi=ln(E_{JET}/E_{i})","1/N_{JET}dN_{ch}/d#xi"); | |
95 | ||
96 | fFragLnrH = new TH1D("fFragLnrH", | |
97 | "Leading Jet Fragmentation (rejected tracks)", | |
98 | 20,0.,10); | |
99 | SetProperties(fFragLnrH,"#xi=ln(E_{JET}/E_{i})","1/N_{JET}dN_{ch}/d#xi"); | |
100 | ||
101 | // jet shape | |
102 | fShapeH = new TH1D("fShapeH","Leading Jet Shape (selected tracks)", | |
103 | 20,0.,1.); | |
104 | SetProperties(fShapeH,"r","1/N_{JET}#Sigma P_{T}(0,r)/P_{T}(0,R)"); | |
105 | ||
106 | fShaperH = new TH1D("fShaperH","Leading Jet Shape (rejected tracks)", | |
107 | 20,0.,1.); | |
108 | SetProperties(fShaperH,"r","1/N_{JET}#Sigma P_{T}(0,r)/P_{T}(0,R)"); | |
99e5fe42 | 109 | } |
110 | ||
111 | //////////////////////////////////////////////////////////////////////// | |
112 | ||
113 | AliJetControlPlots::~AliJetControlPlots() | |
114 | { | |
99e5fe42 | 115 | // Destructor |
99e5fe42 | 116 | delete fNJetsH; |
117 | delete fMultH; | |
118 | delete fPtH; | |
119 | delete fEtaH; | |
120 | delete fEneH; | |
99e5fe42 | 121 | delete fPhiH; |
122 | delete fInJetH; | |
83a444b1 | 123 | delete fFragH; |
124 | delete fFragLnH; | |
125 | delete fFragrH; | |
126 | delete fFragLnrH; | |
127 | delete fShapeH; | |
128 | delete fShaperH; | |
99e5fe42 | 129 | } |
130 | ||
131 | //////////////////////////////////////////////////////////////////////// | |
132 | ||
83a444b1 | 133 | void AliJetControlPlots::FillHistos(AliJet *j) |
99e5fe42 | 134 | { |
83a444b1 | 135 | // Fills the histograms |
99e5fe42 | 136 | Int_t nj = j->GetNJets(); |
83a444b1 | 137 | fNJetsH->Fill(nj,1); |
138 | if (nj == 0) return; | |
139 | ||
99e5fe42 | 140 | // kinematics, occupancy and multiplicities |
141 | TArrayI mj = j->GetMultiplicities(); | |
142 | Int_t mjTot=0; | |
143 | for (Int_t i=0;i<nj;i++) { | |
144 | mjTot+=mj[i]; | |
83a444b1 | 145 | fMultH->Fill(mj[i],1); |
146 | fPtH->Fill(j->GetPt(i),1); | |
147 | fEtaH->Fill(j->GetEta(i),1); | |
148 | fEneH->Fill(j->GetE(i),1); | |
149 | fPhiH->Fill(j->GetPhi(i),1); | |
99e5fe42 | 150 | } |
83a444b1 | 151 | fInJetH->Fill(((Double_t) mjTot)/((Double_t) j->GetNinput()),1); |
152 | ||
153 | // fragmentation of leading jet | |
99e5fe42 | 154 | TArrayI inJet = j->GetInJet(); |
83a444b1 | 155 | TArrayF etain = j->GetEtaIn(); |
156 | TArrayF ptin = j->GetPtIn(); | |
157 | for(Int_t i=0;i<(inJet.GetSize());i++) { | |
158 | Float_t t1 = TMath::Tan(2.0*TMath::ATan(TMath::Exp(-etain[i]))); | |
159 | Float_t ene = ptin[i]*TMath::Sqrt(1.+1./(t1*t1)); | |
160 | if (inJet[i] == 1) { | |
161 | fFragH->Fill((Float_t) ene/(j->GetE(0)),1); | |
162 | fFragLnH->Fill((Float_t) TMath::Log((j->GetE(0))/ene),1); | |
163 | } | |
164 | if (inJet[i] == -1) { | |
165 | fFragrH->Fill((Float_t) ene/(j->GetE(0)),1); | |
166 | fFragLnrH->Fill((Float_t) TMath::Log((j->GetE(0))/ene),1); | |
167 | } | |
168 | } | |
169 | ||
170 | // shape of leading jet | |
171 | // * CAREFUL: depends on number of bins and bin sizes | |
172 | // of shape histo. HARDWIRED at the moment * | |
173 | // Plot against dr NOT dr/R_jet!!! | |
174 | TArrayF phiin = j->GetPhiIn(); | |
175 | Float_t rptS[20], rptR[20]; | |
176 | for(Int_t i=0;i<20;i++) rptS[i]=rptR[i]=0.0; | |
177 | ||
178 | for(Int_t i=0;i<inJet.GetSize();i++) { | |
179 | if (inJet[i] == 1 || inJet[i] == -1) { | |
180 | Float_t deta = etain[i] - j->GetEta(0); | |
181 | Float_t dphi = phiin[i] - j->GetPhi(0); | |
182 | if (dphi < -TMath::Pi()) dphi= -dphi - 2.0 * TMath::Pi(); | |
183 | if (dphi > TMath::Pi()) dphi = 2.0 * TMath::Pi() - dphi; | |
184 | Float_t dr = TMath::Sqrt(deta * deta + dphi * dphi); | |
185 | if (dr>1) continue; | |
186 | Int_t bin = (Int_t) TMath::Floor(dr/0.05); | |
187 | if (inJet[i] == 1) rptS[bin]+=ptin[i]/(j->GetPt(0)); | |
188 | if (inJet[i] == -1) rptR[bin]+=ptin[i]/(j->GetPt(0)); | |
189 | } | |
190 | } | |
191 | ||
192 | Float_t ptS,ptR,r; | |
193 | ptS=ptR=0.0; | |
194 | for (Int_t i=0;i<20;i++) { | |
195 | ptS+=rptS[i]; | |
196 | ptR+=rptR[i]; | |
197 | r=(i+1)*0.05-0.025; | |
198 | fShapeH->Fill(r,ptS); | |
199 | fShaperH->Fill(r,ptR); | |
99e5fe42 | 200 | } |
83a444b1 | 201 | fNJetT++; |
99e5fe42 | 202 | } |
203 | ||
204 | //////////////////////////////////////////////////////////////////////// | |
205 | ||
206 | void AliJetControlPlots::Normalize() | |
207 | { | |
83a444b1 | 208 | // *CAREFUL: depends on histogram number of bins |
99e5fe42 | 209 | if (fNJetT == 0) return; |
99e5fe42 | 210 | fFragH->Scale(20.0/((Double_t) fNJetT)); |
99e5fe42 | 211 | fFragLnH->Scale(2.0/((Double_t) fNJetT)); |
83a444b1 | 212 | fFragrH->Scale(20.0/((Double_t) fNJetT)); |
213 | fFragLnrH->Scale(2.0/((Double_t) fNJetT)); | |
214 | fShapeH->Scale(1.0/((Double_t) fNJetT)); | |
215 | fShaperH->Scale(1.0/((Double_t) fNJetT)); | |
99e5fe42 | 216 | } |
217 | ||
218 | //////////////////////////////////////////////////////////////////////// | |
219 | ||
220 | void AliJetControlPlots::PlotHistos() | |
221 | { | |
222 | // style | |
223 | gStyle->SetOptStat(kFALSE); | |
224 | gStyle->SetOptTitle(kFALSE); | |
225 | ||
83a444b1 | 226 | TCanvas *c = new TCanvas("c","AliJetControlPlots",50,200,1200,700); |
227 | c->Divide(4,3); | |
99e5fe42 | 228 | c->cd(1); fNJetsH->Draw("e1"); |
229 | c->cd(2); fMultH->Draw("e1"); | |
230 | c->cd(3); fInJetH->Draw("e1"); | |
231 | c->cd(4); fPtH->Draw("e1"); | |
232 | c->cd(5); fEtaH->Draw("e1"); | |
233 | c->cd(6); fPhiH->Draw("e1"); | |
234 | c->cd(7); fEneH->Draw("e1"); | |
83a444b1 | 235 | c->cd(8); fFragLnH->Draw("e1"); |
236 | c->cd(9); fFragLnrH->Draw("e1"); | |
237 | c->cd(10); fShapeH->Draw("e1"); | |
238 | c->cd(11); fShaperH->Draw("e1"); | |
99e5fe42 | 239 | } |
240 | ||
241 | //////////////////////////////////////////////////////////////////////// | |
242 | ||
243 | void AliJetControlPlots::SetProperties(TH1* h,const char* x, const char* y) const | |
244 | { | |
99e5fe42 | 245 | // Sets the histogram style properties |
246 | h->SetMarkerStyle(20); | |
247 | h->SetMarkerSize(.5); | |
248 | h->SetMarkerColor(2); | |
249 | h->SetXTitle(x); | |
250 | h->SetYTitle(y); | |
7d0f353c | 251 | // h->Sumw2(); |
99e5fe42 | 252 | } |
253 | ||
254 |