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2d11ded3 | 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 | /* $Id$ */ | |
16 | ||
17 | /* History of cvs commits: | |
18 | * | |
19 | * $Log$ | |
c005641f | 20 | * Revision 1.3 2007/03/08 10:24:32 schutz |
21 | * Coding convention | |
22 | * | |
463ee300 | 23 | * Revision 1.2 2007/02/09 18:40:40 schutz |
24 | * B\bNew version from Gustavo | |
25 | * | |
2a1d8a29 | 26 | * Revision 1.1 2007/01/25 17:24:20 schutz |
27 | * new class | |
28 | * | |
2d11ded3 | 29 | * Revision 1.1 2007/01/23 17:17:29 schutz |
30 | * New Gamma package | |
31 | * | |
32 | * | |
33 | */ | |
34 | ||
35 | //_________________________________________________________________________ | |
36 | // Class for the analysis of gamma correlations (gamma-jet, | |
37 | // gamma-hadron and isolation cut. | |
38 | // This class makes isolation cut analysis for 2 IC methods | |
39 | //(cone pt sum and particle pt threshold), for different cone sizes | |
40 | //and pt thresholds | |
41 | // | |
42 | // Class created from old AliPHOSGammaJet | |
43 | // (see AliRoot versions previous Release 4-09) | |
44 | // | |
45 | //*-- Author: Gustavo Conesa (LNF-INFN) | |
46 | ////////////////////////////////////////////////////////////////////////////// | |
47 | ||
48 | ||
49 | // --- ROOT system --- | |
50 | ||
51 | #include <TFile.h> | |
52 | #include <TParticle.h> | |
53 | #include <TH2.h> | |
54 | ||
55 | #include "AliAnaGammaIsolCut.h" | |
56 | #include "AliESD.h" | |
57 | #include "AliESDtrack.h" | |
58 | #include "AliESDCaloCluster.h" | |
59 | #include "Riostream.h" | |
60 | #include "AliLog.h" | |
61 | ||
62 | ClassImp(AliAnaGammaIsolCut) | |
63 | ||
64 | //____________________________________________________________________________ | |
65 | AliAnaGammaIsolCut::AliAnaGammaIsolCut(const char *name) : | |
66 | AliAnaGammaDirect(name), | |
67 | fOutputContainer(new TObjArray(100)), | |
463ee300 | 68 | fNCones(0),fNPtThres(0), fConeSizes(), fPtThresholds(), fhPtCandidate(0), fhPtThresIsolated(), fhPtSumIsolated() |
2d11ded3 | 69 | { |
463ee300 | 70 | //Ctor |
71 | ||
72 | //Init parameters | |
73 | InitParameters(); | |
2d11ded3 | 74 | |
2d11ded3 | 75 | // Input slot #0 works with an Ntuple |
76 | DefineInput(0, TChain::Class()); | |
77 | // Output slot #0 writes into a TH1 container | |
78 | DefineOutput(0, TObjArray::Class()) ; | |
79 | ||
80 | } | |
81 | ||
82 | ||
83 | //____________________________________________________________________________ | |
84 | AliAnaGammaIsolCut::AliAnaGammaIsolCut(const AliAnaGammaIsolCut & ic) : | |
85 | AliAnaGammaDirect(ic), | |
463ee300 | 86 | fOutputContainer(ic.fOutputContainer), |
87 | fNCones(ic.fNCones),fNPtThres(ic.fNPtThres), fConeSizes(),fPtThresholds(), | |
88 | fhPtCandidate(ic. fhPtCandidate), fhPtThresIsolated(), fhPtSumIsolated() | |
2d11ded3 | 89 | { |
90 | // cpy ctor | |
91 | SetName (ic.GetName()) ; | |
92 | SetTitle(ic.GetTitle()) ; | |
93 | ||
463ee300 | 94 | for(Int_t i = 0; i < fNCones ; i++){ |
95 | fConeSizes[i] = ic.fConeSizes[i]; | |
96 | fhPtSumIsolated[i] = ic.fhPtSumIsolated[i]; | |
97 | for(Int_t j = 0; j < fNPtThres ; j++) | |
98 | fhPtThresIsolated[i][j] = ic.fhPtThresIsolated[i][j]; | |
99 | } | |
100 | ||
101 | for(Int_t i = 0; i < fNPtThres ; i++) | |
2d11ded3 | 102 | fPtThresholds[i]= ic.fPtThresholds[i]; |
463ee300 | 103 | |
104 | ||
105 | } | |
106 | ||
107 | //_________________________________________________________________________ | |
108 | AliAnaGammaIsolCut & AliAnaGammaIsolCut::operator = (const AliAnaGammaIsolCut & source) | |
109 | { | |
110 | //assignment operator | |
111 | if(&source == this) return *this; | |
112 | ||
113 | fOutputContainer = source.fOutputContainer ; | |
114 | fNCones = source.fNCones ; | |
115 | fNPtThres = source.fNPtThres ; | |
116 | fhPtCandidate = source. fhPtCandidate ; | |
117 | ||
118 | for(Int_t i = 0; i < fNCones ; i++){ | |
119 | fConeSizes[i] = source.fConeSizes[i]; | |
120 | fhPtSumIsolated[i] = source.fhPtSumIsolated[i] ; | |
121 | for(Int_t j = 0; j < fNPtThres ; j++) | |
122 | fhPtThresIsolated[i][j] = source.fhPtThresIsolated[i][j] ; | |
2d11ded3 | 123 | } |
463ee300 | 124 | |
125 | for(Int_t i = 0; i < fNPtThres ; i++) | |
126 | fPtThresholds[i]= source.fPtThresholds[i]; | |
127 | ||
128 | ||
129 | return *this; | |
130 | ||
2d11ded3 | 131 | } |
132 | ||
133 | //____________________________________________________________________________ | |
134 | AliAnaGammaIsolCut::~AliAnaGammaIsolCut() | |
135 | { | |
136 | // Remove all pointers | |
137 | fOutputContainer->Clear() ; | |
138 | delete fOutputContainer ; | |
139 | ||
140 | delete fhPtCandidate ; | |
141 | delete [] fhPtThresIsolated ; | |
142 | delete [] fhPtSumIsolated ; | |
143 | ||
144 | } | |
145 | ||
2a1d8a29 | 146 | //______________________________________________________________________________ |
147 | void AliAnaGammaIsolCut::ConnectInputData(const Option_t*) | |
148 | { | |
149 | // Initialisation of branch container and histograms | |
150 | AliAnaGammaDirect::ConnectInputData(""); | |
151 | ||
152 | } | |
153 | ||
154 | //____________________________________________________ | |
155 | void AliAnaGammaIsolCut::CreateOutputObjects() | |
156 | { | |
157 | ||
463ee300 | 158 | // Create histograms to be saved in output file and |
159 | // store them in fOutputContainer | |
2a1d8a29 | 160 | |
161 | fOutputContainer = new TObjArray(100) ; | |
162 | ||
163 | //Isolation cut histograms | |
164 | fhPtCandidate = new TH1F | |
165 | ("PtCandidate","p_{T} of candidate particles for isolation",240,0,120); | |
166 | fhPtCandidate->SetXTitle("p_{T} (GeV/c)"); | |
167 | fOutputContainer->Add(fhPtCandidate) ; | |
168 | ||
169 | char name[128]; | |
170 | char title[128]; | |
171 | for(Int_t icone = 0; icone<fNCones; icone++){ | |
172 | sprintf(name,"PtSumIsolated_Cone_%d",icone); | |
173 | sprintf(title,"Candidate cone sum p_{T} for cone size %d vs candidate p_{T}",icone); | |
174 | fhPtSumIsolated[icone] = new TH2F(name, title,240,0,120,120,0,10); | |
175 | fhPtSumIsolated[icone]->SetYTitle("#Sigma p_{T} (GeV/c)"); | |
176 | fhPtSumIsolated[icone]->SetXTitle("p_{T} (GeV/c)"); | |
177 | fOutputContainer->Add(fhPtSumIsolated[icone]) ; | |
178 | ||
179 | for(Int_t ipt = 0; ipt<fNPtThres;ipt++){ | |
180 | sprintf(name,"PtThresIsol_Cone_%d_Pt%d",icone,ipt); | |
181 | sprintf(title,"Isolated candidate p_{T} distribution for cone size %d and p_{T}^{th} %d",icone,ipt); | |
182 | fhPtThresIsolated[icone][ipt] = new TH1F(name, title,240,0,120); | |
183 | fhPtThresIsolated[icone][ipt]->SetXTitle("p_{T} (GeV/c)"); | |
184 | fOutputContainer->Add(fhPtThresIsolated[icone][ipt]) ; | |
185 | }//icone loop | |
186 | }//ipt loop | |
2d11ded3 | 187 | |
2a1d8a29 | 188 | } |
2d11ded3 | 189 | |
190 | //____________________________________________________________________________ | |
191 | void AliAnaGammaIsolCut::Exec(Option_t *) | |
192 | { | |
193 | ||
194 | // Processing of one event | |
2d11ded3 | 195 | //Get ESDs |
2a1d8a29 | 196 | |
2d11ded3 | 197 | Long64_t entry = GetChain()->GetReadEntry() ; |
2d11ded3 | 198 | if (!GetESD()) { |
199 | AliError("fESD is not connected to the input!") ; | |
200 | return ; | |
201 | } | |
2d11ded3 | 202 | if (GetPrintInfo()) |
203 | AliInfo(Form("%s ----> Processing event # %lld", (dynamic_cast<TChain *>(GetChain()))->GetFile()->GetName(), entry)) ; | |
204 | ||
205 | //CreateTLists with arrays of TParticles. Filled with particles only relevant for the analysis. | |
206 | ||
207 | TClonesArray * particleList = new TClonesArray("TParticle",1000); // All particles refitted in CTS and detected in EMCAL (jet) | |
208 | TClonesArray * plCTS = new TClonesArray("TParticle",1000); // All particles refitted in Central Tracking System (ITS+TPC) | |
209 | TClonesArray * plNe = new TClonesArray("TParticle",1000); // All particles measured in Jet Calorimeter (EMCAL) | |
210 | TClonesArray * plPHOS = new TClonesArray("TParticle",1000); // All particles measured in PHOS as Gamma calorimeter | |
211 | TClonesArray * plEMCAL = new TClonesArray("TParticle",1000); // All particles measured in EMCAL as Gamma calorimeter | |
212 | ||
213 | ||
214 | AliDebug(2, "Fill particle lists"); | |
215 | ||
216 | //Fill particle lists | |
217 | CreateParticleList(particleList, plCTS,plEMCAL,plPHOS); | |
218 | ||
219 | if(GetCalorimeter() == "PHOS") | |
220 | plNe = plPHOS; | |
221 | if(GetCalorimeter() == "EMCAL") | |
222 | plNe = plEMCAL; | |
223 | ||
224 | //Isolation Cut Analysis for both methods and different pt cuts and cones | |
225 | ||
226 | for(Int_t ipr = 0; ipr < plNe->GetEntries() ; ipr ++ ){ | |
227 | TParticle * pCandidate = dynamic_cast<TParticle *>(plNe->At(ipr)) ; | |
228 | ||
229 | if(pCandidate->Pt() > GetMinGammaPt()){ | |
230 | ||
231 | Bool_t icPtThres = kFALSE; | |
232 | Bool_t icPtSum = kFALSE; | |
233 | ||
234 | Float_t ptC = pCandidate->Pt() ; | |
235 | ||
236 | fhPtCandidate->Fill(ptC); | |
237 | ||
238 | for(Int_t icone = 0; icone<fNCones; icone++){ | |
239 | SetConeSize(fConeSizes[icone]) ; | |
240 | Float_t coneptsum = 0 ; | |
241 | for(Int_t ipt = 0; ipt<fNPtThres;ipt++){ | |
242 | SetPtThreshold(fPtThresholds[ipt]) ; | |
243 | MakeIsolationCut(plCTS,plNe, pCandidate, ipr, icPtThres, icPtSum,coneptsum); | |
244 | AliDebug(4,Form("Candidate pt %f, pt in cone %f, Isolated? ICPt %d, ICSum %d", | |
245 | pCandidate->Pt(), coneptsum, icPtThres, icPtSum)); | |
246 | ||
247 | fhPtThresIsolated[icone][ipt]->Fill(ptC); | |
248 | }//pt thresh loop | |
249 | fhPtSumIsolated[icone]->Fill(ptC,coneptsum) ; | |
250 | }//cone size loop | |
251 | }//min pt candidate | |
252 | }//candidate loop | |
253 | ||
254 | AliDebug(2, "End of analysis, delete pointers"); | |
255 | ||
256 | particleList->Delete() ; | |
257 | plCTS->Delete() ; | |
258 | plNe->Delete() ; | |
259 | plPHOS->Delete() ; | |
260 | plEMCAL->Delete() ; | |
261 | ||
262 | delete plNe ; | |
263 | delete plCTS ; | |
264 | //delete plPHOS ; | |
265 | //delete plEMCAL ; | |
266 | delete particleList ; | |
267 | ||
268 | PostData(0, fOutputContainer); | |
269 | } | |
270 | ||
271 | //____________________________________________________________________________ | |
2a1d8a29 | 272 | void AliAnaGammaIsolCut::InitParameters() |
2d11ded3 | 273 | { |
274 | // Initialisation of branch container | |
2a1d8a29 | 275 | AliAnaGammaDirect::InitParameters(); |
2d11ded3 | 276 | |
277 | fNCones = 4 ; | |
278 | fNPtThres = 4 ; | |
463ee300 | 279 | fConeSizes[0] = 0.1; fConeSizes[1] = 0.2; fConeSizes[2] = 0.3; fConeSizes[3] = 0.4; |
280 | fPtThresholds[0]=1.; fPtThresholds[1]=2.; fPtThresholds[2]=3.; fPtThresholds[3]=4.; | |
2d11ded3 | 281 | } |
282 | ||
2d11ded3 | 283 | void AliAnaGammaIsolCut::Print(const Option_t * opt) const |
284 | { | |
285 | ||
286 | //Print some relevant parameters set for the analysis | |
287 | if(! opt) | |
288 | return; | |
289 | ||
290 | Info("Print", "%s %s", GetName(), GetTitle() ) ; | |
291 | printf("N Cone Sizes = %d\n", fNCones) ; | |
292 | printf("N pT thresholds = %d\n", fNPtThres) ; | |
293 | printf("Cone Sizes = \n") ; | |
294 | for(Int_t i = 0; i < fNCones; i++) | |
295 | printf(" %f;", fConeSizes[i]) ; | |
296 | printf(" \n") ; | |
297 | for(Int_t i = 0; i < fNPtThres; i++) | |
298 | printf(" %f;", fPtThresholds[i]) ; | |
299 | printf(" \n") ; | |
300 | ||
301 | } | |
302 | ||
303 | void AliAnaGammaIsolCut::Terminate(Option_t *) | |
304 | { | |
305 | // The Terminate() function is the last function to be called during | |
306 | // a query. It always runs on the client, it can be used to present | |
307 | // the results graphically or save the results to file. | |
308 | ||
309 | } |