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