1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 //_________________________________________________________________________
17 // Class for the analysis of particle - hadron correlations
18 // Particle (for example direct gamma) must be found in a previous analysis
19 //-- Author: Gustavo Conesa (LNF-INFN)
21 // Modified by Yaxian Mao:
22 // 1. add the UE subtraction for corrlation study
23 // 2. change the correlation variable
24 // 3. Only use leading particle(cluster/track) as trigger for correlation (2010/07/02)
25 // 4. Make decay photon-hadron correlations where decay contribute pi0 mass (2010/09/09)
26 // 5. fill the pout to extract kt at the end, also to study charge asymmetry(2010/10/06)
27 // 6. Add the possibility for event selection analysis based on vertex and multiplicity bins (10/10/2010)
28 // 7. change the way of delta phi cut for UE study due to memory issue (reduce histograms)
29 // 8. Add the possibility to request the absolute leading particle at the near side or not, set trigger bins, general clean-up (08/2011)
30 //////////////////////////////////////////////////////////////////////////////
33 // --- ROOT system ---
34 //#include "TClonesArray.h"
38 #include "TDatabasePDG.h"
40 //---- ANALYSIS system ----
41 #include "AliNeutralMesonSelection.h"
42 #include "AliAnaParticleHadronCorrelation.h"
43 #include "AliCaloTrackReader.h"
44 #include "AliCaloPID.h"
45 #include "AliAODPWG4ParticleCorrelation.h"
46 #include "AliFiducialCut.h"
47 #include "AliVTrack.h"
48 #include "AliVCluster.h"
49 #include "AliMCAnalysisUtils.h"
50 #include "TParticle.h"
52 #include "AliAODMCParticle.h"
53 #include "AliMixedEvent.h"
55 ClassImp(AliAnaParticleHadronCorrelation)
58 //___________________________________________________________________
59 AliAnaParticleHadronCorrelation::AliAnaParticleHadronCorrelation():
60 AliAnaCaloTrackCorrBaseClass(),
62 fMaxAssocPt(1000.), fMinAssocPt(0.),
63 fDeltaPhiMaxCut(0.), fDeltaPhiMinCut(0.),
64 fSelectIsolated(0), fMakeSeveralUE(0),
65 fUeDeltaPhiMaxCut(0.), fUeDeltaPhiMinCut(0.),
66 fPi0AODBranchName(""), fNeutralCorr(0),
67 fPi0Trigger(0), fMakeAbsoluteLeading(0),
68 fLeadingTriggerIndex(-1),
69 fNAssocPtBins(0), fAssocPtBinLimit(),
71 fhPtLeading(0), fhPhiLeading(0),
72 fhEtaLeading(0), fhDeltaPhiDeltaEtaCharged(0),
73 fhPhiCharged(0), fhEtaCharged(0),
74 fhDeltaPhiCharged(0), fhDeltaEtaCharged(0),
75 fhDeltaPhiChargedPt(0), fhDeltaPhiUeChargedPt(0),
76 fhPtImbalanceCharged(0), fhPtImbalanceUeCharged(0),
77 fhPtImbalancePosCharged(0), fhPtImbalanceNegCharged(0),
78 fhPtHbpCharged(0), fhPtHbpUeCharged(0),
79 fhDeltaPhiUeLeftCharged(0), fhDeltaPhiUeRightCharged(0),
80 fhPtImbalanceUeLeftCharged(0), fhPtImbalanceUeRightCharged(0),
81 fhPtHbpUeLeftCharged(0), fhPtHbpUeRightCharged(0),
82 fhPtTrigPout(0), fhPtTrigCharged(0),
83 fhTrigDeltaPhiCharged(0x0), fhTrigDeltaEtaCharged(0x0),
84 fhTrigCorr(0x0), fhTrigUeCorr(0x0),
85 fhAssocPt(0), fhAssocPtBkg(0),
86 fhDeltaPhiAssocPtBin(0), fhDeltaPhiAssocPtBinHMPID(0),fhDeltaPhiAssocPtBinHMPIDAcc(0),
87 fhDeltaPhiBradAssocPtBin(0), fhDeltaPhiBrad(0),
88 fhXEAssocPtBin(0), fhXE(0),
89 fhDeltaPhiDeltaEtaNeutral(0),
90 fhPhiNeutral(0), fhEtaNeutral(0),
91 fhDeltaPhiNeutral(0), fhDeltaEtaNeutral(0),
92 fhDeltaPhiNeutralPt(0), fhDeltaPhiUeNeutralPt(0),
93 fhPtImbalanceNeutral(0), fhPtImbalanceUeNeutral(0),
94 fhPtHbpNeutral(0), fhPtHbpUeNeutral(0),
95 fhDeltaPhiUeLeftNeutral(0), fhDeltaPhiUeRightNeutral(0),
96 fhPtImbalanceUeLeftNeutral(0), fhPtImbalanceUeRightNeutral(0),
97 fhPtHbpUeLeftNeutral(0), fhPtHbpUeRightNeutral(0),
99 fhDeltaPhiDecayCharged(0), fhPtImbalanceDecayCharged(0),
100 fhDeltaPhiDecayNeutral(0), fhPtImbalanceDecayNeutral(0),
101 fh2phiLeadingParticle(0x0),
103 fhMCEtaCharged(0), fhMCPhiCharged(0),
104 fhMCDeltaEtaCharged(0), fhMCDeltaPhiCharged(0x0),
105 fhMCDeltaPhiDeltaEtaCharged(0), fhMCDeltaPhiChargedPt(0),
106 fhMCPtImbalanceCharged(0),
109 fhMCPtAssocDeltaPhi(0)
113 //Initialize parameters
117 //____________________________________________________________
118 TObjString* AliAnaParticleHadronCorrelation::GetAnalysisCuts()
120 //Save parameters used for analysis
121 TString parList ; //this will be list of parameters used for this analysis.
122 const Int_t buffersize = 560;
123 char onePar[buffersize] ;
125 snprintf(onePar,buffersize,"--- AliAnaPaticleHadronCorrelation ---\n") ;
127 snprintf(onePar,buffersize," Pt Trigger > %3.2f ", fMinTriggerPt) ;
129 snprintf(onePar,buffersize," %3.2f < Pt associated < %3.2f ", fMinAssocPt, fMaxAssocPt) ;
131 snprintf(onePar,buffersize," %3.2f < Phi trigger particle-Hadron < %3.2f ", fDeltaPhiMinCut, fDeltaPhiMaxCut) ;
133 snprintf(onePar,buffersize," %3.2f < Phi trigger particle-UeHadron < %3.2f ", fUeDeltaPhiMinCut, fUeDeltaPhiMaxCut) ;
135 snprintf(onePar,buffersize,"Isolated Trigger? %d\n", fSelectIsolated) ;
137 snprintf(onePar,buffersize,"Several UE? %d\n", fMakeSeveralUE) ;
139 snprintf(onePar,buffersize,"Name of AOD Pi0 Branch %s ", fPi0AODBranchName.Data());
141 snprintf(onePar,buffersize,"Do Decay-hadron correlation ? %d", fPi0Trigger) ;
143 snprintf(onePar,buffersize,"Select absolute leading for cluster triggers ? %d\n", fMakeAbsoluteLeading) ;
145 snprintf(onePar,buffersize,"Associated particle pt bins %d: ", fNAssocPtBins) ;
147 for (Int_t ibin = 0; ibin<fNAssocPtBins; ibin++) {
148 snprintf(onePar,buffersize,"bin %d = [%2.1f,%2.1f];", ibin, fAssocPtBinLimit[ibin], fAssocPtBinLimit[ibin+1]) ;
152 //Get parameters set in base class.
153 parList += GetBaseParametersList() ;
155 //Get parameters set in PID class.
156 //parList += GetCaloPID()->GetPIDParametersList() ;
158 //Get parameters set in FiducialCut class (not available yet)
159 //parlist += GetFidCut()->GetFidCutParametersList()
161 return new TObjString(parList) ;
165 //________________________________________________________________
166 TList * AliAnaParticleHadronCorrelation::GetCreateOutputObjects()
169 // Create histograms to be saved in output file and
170 // store them in fOutputContainer
171 TList * outputContainer = new TList() ;
172 outputContainer->SetName("CorrelationHistos") ;
174 Int_t nptbins = GetHistogramRanges()->GetHistoPtBins(); Int_t nphibins = GetHistogramRanges()->GetHistoPhiBins(); Int_t netabins = GetHistogramRanges()->GetHistoEtaBins();
175 Float_t ptmax = GetHistogramRanges()->GetHistoPtMax(); Float_t phimax = GetHistogramRanges()->GetHistoPhiMax(); Float_t etamax = GetHistogramRanges()->GetHistoEtaMax();
176 Float_t ptmin = GetHistogramRanges()->GetHistoPtMin(); Float_t phimin = GetHistogramRanges()->GetHistoPhiMin(); Float_t etamin = GetHistogramRanges()->GetHistoEtaMin();
178 fhPtLeading = new TH1F ("hPtLeading","p_T distribution of leading particles", nptbins,ptmin,ptmax);
179 fhPtLeading->SetXTitle("p_{T}^{trig} (GeV/c)");
181 fhPhiLeading = new TH2F ("hPhiLeading","#phi distribution of leading Particles",nptbins,ptmin,ptmax, nphibins,phimin,phimax);
182 fhPhiLeading->SetYTitle("#phi (rad)");
184 fhEtaLeading = new TH2F ("hEtaLeading","#eta distribution of leading",nptbins,ptmin,ptmax, netabins,etamin,etamax);
185 fhEtaLeading->SetYTitle("#eta ");
187 outputContainer->Add(fhPtLeading);
188 outputContainer->Add(fhPhiLeading);
189 outputContainer->Add(fhEtaLeading);
191 //Correlation with charged hadrons
192 if(GetReader()->IsCTSSwitchedOn())
194 fhDeltaPhiDeltaEtaCharged = new TH2F
195 ("DeltaPhiDeltaEtaCharged","#phi_{trigger} - #phi_{h^{#pm}} vs #eta_{trigger} - #eta_{h^{#pm}}",
196 140,-2.,5.,200,-2,2);
197 fhDeltaPhiDeltaEtaCharged->SetXTitle("#Delta #phi");
198 fhDeltaPhiDeltaEtaCharged->SetYTitle("#Delta #eta");
200 fhPhiCharged = new TH2F
201 ("PhiCharged","#phi_{h^{#pm}} vs p_{T #pm}",
202 nptbins,ptmin,ptmax,nphibins,phimin,phimax);
203 fhPhiCharged->SetYTitle("#phi_{h^{#pm}} (rad)");
204 fhPhiCharged->SetXTitle("p_{T #pm} (GeV/c)");
206 fhEtaCharged = new TH2F
207 ("EtaCharged","#eta_{h^{#pm}} vs p_{T #pm}",
208 nptbins,ptmin,ptmax,netabins,etamin,etamax);
209 fhEtaCharged->SetYTitle("#eta_{h^{#pm}} (rad)");
210 fhEtaCharged->SetXTitle("p_{T #pm} (GeV/c)");
212 fhDeltaPhiCharged = new TH2F
213 ("DeltaPhiCharged","#phi_{trigger} - #phi_{h^{#pm}} vs p_{T trigger}",
214 nptbins,ptmin,ptmax,140,-2.,5.);
215 fhDeltaPhiCharged->SetYTitle("#Delta #phi");
216 fhDeltaPhiCharged->SetXTitle("p_{T trigger} (GeV/c)");
218 fhDeltaPhiChargedPt = new TH2F
219 ("DeltaPhiChargedPt","#phi_{trigger} - #phi_{#h^{#pm}} vs p_{T h^{#pm}}",
220 nptbins,ptmin,ptmax,140,-2.,5.);
221 fhDeltaPhiChargedPt->SetYTitle("#Delta #phi");
222 fhDeltaPhiChargedPt->SetXTitle("p_{T h^{#pm}} (GeV/c)");
224 fhDeltaPhiUeChargedPt = new TH2F
225 ("DeltaPhiUeChargedPt","#phi_{trigger} - #phi_{#Ueh^{#pm}} vs p_{T Ueh^{#pm}}",
226 nptbins,ptmin,ptmax,140,-2.,5.);
227 fhDeltaPhiUeChargedPt->SetYTitle("#Delta #phi");
228 fhDeltaPhiUeChargedPt->SetXTitle("p_{T h^{#pm}} (GeV/c)");
230 fhDeltaEtaCharged = new TH2F
231 ("DeltaEtaCharged","#eta_{trigger} - #eta_{h^{#pm}} vs p_{T trigger}",
232 nptbins,ptmin,ptmax,200,-2,2);
233 fhDeltaEtaCharged->SetYTitle("#Delta #eta");
234 fhDeltaEtaCharged->SetXTitle("p_{T trigger} (GeV/c)");
236 fhPtImbalanceCharged =
237 new TH2F("CorrelationCharged","z_{trigger h^{#pm}} = p_{T h^{#pm}} / p_{T trigger}",
238 nptbins,ptmin,ptmax,200,0.,2.);
239 fhPtImbalanceCharged->SetYTitle("z_{trigger h^{#pm}}");
240 fhPtImbalanceCharged->SetXTitle("p_{T trigger}");
242 fhPtImbalanceUeCharged =
243 new TH2F("CorrelationUeCharged","z_{trigger h^{#pm}} = p_{T Ueh^{#pm}} / p_{T trigger}",
244 nptbins,ptmin,ptmax,200,0.,2.);
245 fhPtImbalanceUeCharged->SetYTitle("z_{trigger Ueh^{#pm}}");
246 fhPtImbalanceUeCharged->SetXTitle("p_{T trigger}");
248 fhPtImbalancePosCharged =
249 new TH2F("CorrelationPositiveCharged","z_{trigger h^{+}} = p_{T h^{+}} / p_{T trigger}",
250 nptbins,ptmin,ptmax,200,0.,2.);
251 fhPtImbalancePosCharged->SetYTitle("z_{trigger h^{+}}");
252 fhPtImbalancePosCharged->SetXTitle("p_{T trigger}");
254 fhPtImbalanceNegCharged =
255 new TH2F("CorrelationNegativeCharged","z_{trigger h^{-}} = p_{T h^{-}} / p_{T trigger}",
256 nptbins,ptmin,ptmax,200,0.,2.);
257 fhPtImbalanceNegCharged->SetYTitle("z_{trigger h^{-}}");
258 fhPtImbalanceNegCharged->SetXTitle("p_{T trigger}");
261 new TH2F("HbpCharged","#xi = ln(1/x_{E}) with charged hadrons",
262 nptbins,ptmin,ptmax,200,0.,10.);
263 fhPtHbpCharged->SetYTitle("ln(1/x_{E})");
264 fhPtHbpCharged->SetXTitle("p_{T trigger}");
267 new TH2F("HbpUeCharged","#xi = ln(1/x_{E}) with charged hadrons",
268 nptbins,ptmin,ptmax,200,0.,10.);
269 fhPtHbpUeCharged->SetYTitle("ln(1/x_{E})");
270 fhPtHbpUeCharged->SetXTitle("p_{T trigger}");
273 new TH2F("PtTrigPout","Pout with triggers",
274 nptbins,ptmin,ptmax,2*nptbins,-ptmax,ptmax);
275 fhPtTrigPout->SetYTitle("p_{out} (GeV/c)");
276 fhPtTrigPout->SetXTitle("p_{T trigger} (GeV/c)");
279 new TH2F("PtTrigCharged","trgger and charged tracks pt distribution",
280 nptbins,ptmin,ptmax,nptbins,ptmin,ptmax);
281 fhPtTrigCharged->SetYTitle("p_{T h^{#pm}} (GeV/c)");
282 fhPtTrigCharged->SetXTitle("p_{T trigger} (GeV/c)");
284 outputContainer->Add(fhDeltaPhiDeltaEtaCharged);
285 outputContainer->Add(fhPhiCharged) ;
286 outputContainer->Add(fhEtaCharged) ;
287 outputContainer->Add(fhDeltaPhiCharged) ;
288 outputContainer->Add(fhDeltaEtaCharged) ;
289 outputContainer->Add(fhDeltaPhiChargedPt) ;
290 outputContainer->Add(fhDeltaPhiUeChargedPt) ;
291 outputContainer->Add(fhPtImbalanceCharged) ;
292 outputContainer->Add(fhPtImbalancePosCharged) ;
293 outputContainer->Add(fhPtImbalanceNegCharged) ;
294 outputContainer->Add(fhPtImbalanceUeCharged) ;
295 outputContainer->Add(fhPtHbpCharged) ;
296 outputContainer->Add(fhPtHbpUeCharged) ;
297 outputContainer->Add(fhPtTrigPout) ;
298 outputContainer->Add(fhPtTrigCharged) ;
302 Int_t nMultiBins = GetMultiBin();
303 fhTrigDeltaPhiCharged = new TH2F*[nMultiBins] ;
304 fhTrigDeltaEtaCharged = new TH2F*[nMultiBins] ;
305 fhTrigCorr = new TH2F*[nMultiBins];
306 fhTrigUeCorr = new TH2F*[nMultiBins];
307 for(Int_t im=0; im<nMultiBins; im++){
308 fhTrigDeltaPhiCharged[im] = new TH2F
309 (Form("fhTrigDeltaPhiCharged_%d",im),Form("fhTrigDeltaPhiCharged_%d",im), nptbins,ptmin,ptmax, 140,-2.,5.);
310 fhTrigDeltaPhiCharged[im]->SetXTitle("p_{T trigger} (GeV/c)");
311 fhTrigDeltaPhiCharged[im]->SetYTitle("#Delta #phi");
312 fhTrigDeltaEtaCharged[im] = new TH2F
313 (Form("fhTrigDeltaEtaCharged_%d",im),Form("fhTrigDeltaEtaCharged_%d",im), nptbins,ptmin,ptmax, 200,-2,2);
314 fhTrigDeltaEtaCharged[im]->SetXTitle("p_{T trigger} (GeV/c)");
315 fhTrigDeltaEtaCharged[im]->SetYTitle("#Delta #eta");
316 fhTrigCorr[im] = new TH2F
317 (Form("fhTrigPtCorr_%d",im),Form("fhTrigPtCorr_%d",im), nptbins,ptmin,ptmax,200,0.,2.);
318 fhTrigCorr[im]->SetYTitle("z_{trigger h^{#pm}}");
319 fhTrigCorr[im]->SetXTitle("p_{T trigger}");
320 fhTrigUeCorr[im] = new TH2F
321 (Form("fhTrigPtUeCorr_%d",im),Form("fhTrigPtUeCorr_%d",im), nptbins,ptmin,ptmax,200,0.,2.);
322 fhTrigUeCorr[im]->SetYTitle("z_{trigger h^{#pm}}");
323 fhTrigUeCorr[im]->SetXTitle("p_{T trigger}");
325 outputContainer->Add(fhTrigDeltaPhiCharged[im]) ;
326 outputContainer->Add(fhTrigDeltaEtaCharged[im]) ;
327 outputContainer->Add(fhTrigCorr[im]);
328 outputContainer->Add(fhTrigUeCorr[im]);
333 fhAssocPt = new TH2F("fhAssocPt", " Trigger p_{T} vs associated hadron p_{T}",
334 nptbins, ptmin, ptmax,nptbins,ptmin,ptmax);
335 fhAssocPt->SetXTitle("p_{T trigger}");
336 fhAssocPt->SetYTitle("p_{T associated}");
337 outputContainer->Add(fhAssocPt) ;
339 fhAssocPtBkg = new TH2F("fhAssocPtBkg", " Trigger p_{T} vs associated hadron p_{T} from background",
340 nptbins, ptmin, ptmax,nptbins,ptmin,ptmax);
341 fhAssocPtBkg->SetXTitle("p_{T trigger}");
342 fhAssocPtBkg->SetYTitle("p_{T associated}");
343 outputContainer->Add(fhAssocPtBkg) ;
345 fhDeltaPhiBrad = new TH2F("fhDeltaPhiBrad","atan2(sin(#Delta #phi), cos(#Delta #phi))/#pi vs p_{T trigger} ",
346 nptbins, ptmin, ptmax,288, -1.0/3.0, 5.0/3.0);
347 fhDeltaPhiBrad->SetXTitle("p_{T trigger}");
348 fhDeltaPhiBrad->SetYTitle("atan2(sin(#Delta #phi), cos(#Delta #phi))/#pi");
350 outputContainer->Add(fhDeltaPhiBrad) ;
352 fhXE = new TH2F("fhXE", "x_{E} vs p_{T trigger}",
353 nptbins, ptmin, ptmax,50, 0.0, 2.0);
354 fhXE->SetXTitle("p_{T trigger}");
355 fhXE->SetYTitle("x_{E}");
357 outputContainer->Add(fhXE);
360 fhDeltaPhiAssocPtBin = new TH2F*[fNAssocPtBins] ;
361 fhDeltaPhiAssocPtBinHMPID= new TH2F*[fNAssocPtBins] ;
362 fhDeltaPhiAssocPtBinHMPIDAcc= new TH2F*[fNAssocPtBins] ;
363 fhDeltaPhiBradAssocPtBin = new TH2F*[fNAssocPtBins] ;
364 fhXEAssocPtBin = new TH2F*[fNAssocPtBins] ;
365 for(Int_t i = 0 ; i < fNAssocPtBins ; i++){
366 fhDeltaPhiAssocPtBin[i] = new TH2F(Form("fhDeltaPhiPtAssocPt%2.1f_%2.1f", fAssocPtBinLimit[i], fAssocPtBinLimit[i+1]),
367 Form("#Delta #phi vs p_{T trigger} for associated p_{T} bin [%2.1f,%2.1f]", fAssocPtBinLimit[i], fAssocPtBinLimit[i+1]),
368 nptbins, ptmin, ptmax,140,-2.,5.);
369 fhDeltaPhiAssocPtBin[i]->SetXTitle("p_{T trigger}");
370 fhDeltaPhiAssocPtBin[i]->SetYTitle("#Delta #phi");
372 fhDeltaPhiAssocPtBinHMPID[i] = new TH2F(Form("fhDeltaPhiPtAssocPt%2.1f_%2.1fHMPID", fAssocPtBinLimit[i], fAssocPtBinLimit[i+1]),
373 Form("#Delta #phi vs p_{T trigger} for associated p_{T} bin [%2.1f,%2.1f], with track having HMPID signal", fAssocPtBinLimit[i], fAssocPtBinLimit[i+1]),
374 nptbins, ptmin, ptmax,140,-2.,5.);
375 fhDeltaPhiAssocPtBinHMPID[i]->SetXTitle("p_{T trigger}");
376 fhDeltaPhiAssocPtBinHMPID[i]->SetYTitle("#Delta #phi");
378 fhDeltaPhiAssocPtBinHMPIDAcc[i] = new TH2F(Form("fhDeltaPhiPtAssocPt%2.1f_%2.1fHMPIDAcc", fAssocPtBinLimit[i], fAssocPtBinLimit[i+1]),
379 Form("#Delta #phi vs p_{T trigger} for associated p_{T} bin [%2.1f,%2.1f], with track within 5<phi<20 deg", fAssocPtBinLimit[i], fAssocPtBinLimit[i+1]),
380 nptbins, ptmin, ptmax,140,-2.,5.);
381 fhDeltaPhiAssocPtBinHMPIDAcc[i]->SetXTitle("p_{T trigger}");
382 fhDeltaPhiAssocPtBinHMPIDAcc[i]->SetYTitle("#Delta #phi");
384 fhDeltaPhiBradAssocPtBin[i] = new TH2F(Form("fhDeltaPhiBradPtAssocPt%2.1f_%2.1f", fAssocPtBinLimit[i], fAssocPtBinLimit[i+1]),
385 Form("atan2(sin(#Delta #phi), cos(#Delta #phi))/#pi vs p_{T trigger} for associated p_{T} bin [%2.1f,%2.1f]", fAssocPtBinLimit[i], fAssocPtBinLimit[i+1]),
386 nptbins, ptmin, ptmax,288, -1.0/3.0, 5.0/3.0);
387 fhDeltaPhiBradAssocPtBin[i]->SetXTitle("p_{T trigger}");
388 fhDeltaPhiBradAssocPtBin[i]->SetYTitle("atan2(sin(#Delta #phi), cos(#Delta #phi))/#pi");
391 fhXEAssocPtBin[i] = new TH2F(Form("fhXEAssocPtBin%1.f_%1.f", fAssocPtBinLimit[i], fAssocPtBinLimit[i+1]),
392 Form("x_{E} vs p_{T trigger} for associated p_{T} bin [%2.1f,%2.1f]", fAssocPtBinLimit[i], fAssocPtBinLimit[i+1]),
393 nptbins, ptmin, ptmax,50, 0.0, 2.0);
394 fhXEAssocPtBin[i]->SetXTitle("p_{T trigger}");
395 fhXEAssocPtBin[i]->SetYTitle("x_{E}");
397 outputContainer->Add(fhDeltaPhiAssocPtBin[i]) ;
398 outputContainer->Add(fhDeltaPhiAssocPtBinHMPID[i]) ;
399 outputContainer->Add(fhDeltaPhiAssocPtBinHMPIDAcc[i]) ;
400 outputContainer->Add(fhDeltaPhiBradAssocPtBin[i]) ;
401 outputContainer->Add(fhXEAssocPtBin[i]);
406 fhPtPi0DecayRatio = new TH2F
407 ("hPtPi0DecayRatio","p_T of #pi^{0} and the ratio of pt for two decay",
408 nptbins,ptmin,ptmax, 100,0.,2.);
409 fhPtPi0DecayRatio->SetXTitle("p_{T}^{#pi^{0}} (GeV/c)");
410 fhPtPi0DecayRatio->SetYTitle("p_{T}^{Decay}/p_{T}^{#pi^{0}}");
412 fhDeltaPhiDecayCharged = new TH2F
413 ("DeltaPhiDecayCharged","#phi_{Decay} - #phi_{h^{#pm}} vs p_{T Decay}",
414 nptbins,ptmin,ptmax,140,-2.,5.);
415 fhDeltaPhiDecayCharged->SetYTitle("#Delta #phi");
416 fhDeltaPhiDecayCharged->SetXTitle("p_{T Decay} (GeV/c)");
418 fhPtImbalanceDecayCharged =
419 new TH2F("CorrelationDecayCharged","z_{trigger h^{#pm}} = p_{T h^{#pm}} / p_{T Decay}",
420 nptbins,ptmin,ptmax,200,0.,2.);
421 fhPtImbalanceDecayCharged->SetYTitle("z_{decay h^{#pm}}");
422 fhPtImbalanceDecayCharged->SetXTitle("p_{T decay}");
424 outputContainer->Add(fhPtPi0DecayRatio) ;
425 outputContainer->Add(fhDeltaPhiDecayCharged) ;
426 outputContainer->Add(fhPtImbalanceDecayCharged) ;
432 fhDeltaPhiUeLeftCharged = new TH2F
433 ("DeltaPhiUeLeftChargedPt","#phi_{trigger} - #phi_{#Ueh^{#pm}} vs p_{T Ueh^{#pm}} with UE left side range of trigger particles",
434 nptbins,ptmin,ptmax,140,-2.,5.);
435 fhDeltaPhiUeLeftCharged->SetYTitle("#Delta #phi");
436 fhDeltaPhiUeLeftCharged->SetXTitle("p_{T h^{#pm}} (GeV/c)");
437 outputContainer->Add(fhDeltaPhiUeLeftCharged) ;
439 fhDeltaPhiUeRightCharged = new TH2F
440 ("DeltaPhiUeRightChargedPt","#phi_{trigger} - #phi_{#Ueh^{#pm}} vs p_{T Ueh^{#pm}} with UE right side range of trigger particles",
441 nptbins,ptmin,ptmax,140,-2.,5.);
442 fhDeltaPhiUeRightCharged->SetYTitle("#Delta #phi");
443 fhDeltaPhiUeRightCharged->SetXTitle("p_{T h^{#pm}} (GeV/c)");
444 outputContainer->Add(fhDeltaPhiUeRightCharged) ;
446 fhPtImbalanceUeLeftCharged =
447 new TH2F("CorrelationUeChargedLeft","z_{trigger h^{#pm}} = p_{T Ueh^{#pm}} / p_{T trigger} with UE left side of trigger",
448 nptbins,ptmin,ptmax,200,0.,2.);
449 fhPtImbalanceUeLeftCharged->SetYTitle("z_{trigger Ueh^{#pm}}");
450 fhPtImbalanceUeLeftCharged->SetXTitle("p_{T trigger}");
451 outputContainer->Add(fhPtImbalanceUeLeftCharged) ;
453 fhPtImbalanceUeRightCharged =
454 new TH2F("CorrelationUeChargedRight","z_{trigger h^{#pm}} = p_{T Ueh^{#pm}} / p_{T trigger} with UE right side of trigger",
455 nptbins,ptmin,ptmax,200,0.,2.);
456 fhPtImbalanceUeRightCharged->SetYTitle("z_{trigger Ueh^{#pm}}");
457 fhPtImbalanceUeRightCharged->SetXTitle("p_{T trigger}");
458 outputContainer->Add(fhPtImbalanceUeRightCharged) ;
460 fhPtHbpUeLeftCharged =
461 new TH2F("HbpUeChargedLeft","#xi = ln(1/x_{E}) with charged UE left side of trigger",
462 nptbins,ptmin,ptmax,200,0.,10.);
463 fhPtHbpUeLeftCharged->SetYTitle("ln(1/x_{E})");
464 fhPtHbpUeLeftCharged->SetXTitle("p_{T trigger}");
465 outputContainer->Add(fhPtHbpUeLeftCharged) ;
467 fhPtHbpUeRightCharged =
468 new TH2F("HbpUeChargedRight","#xi = ln(1/x_{E}) with charged UE right side of trigger",
469 nptbins,ptmin,ptmax,200,0.,10.);
470 fhPtHbpUeRightCharged->SetYTitle("ln(1/x_{E})");
471 fhPtHbpUeRightCharged->SetXTitle("p_{T trigger}");
472 outputContainer->Add(fhPtHbpUeRightCharged) ;
475 } //Correlation with charged hadrons
477 //Correlation with neutral hadrons
480 fhDeltaPhiDeltaEtaNeutral = new TH2F
481 ("DeltaPhiDeltaEtaNeutral","#phi_{trigger} - #phi_{h^{0}} vs #eta_{trigger} - #eta_{h^{0}}",
482 140,-2.,5.,200,-2,2);
483 fhDeltaPhiDeltaEtaNeutral->SetXTitle("#Delta #phi");
484 fhDeltaPhiDeltaEtaNeutral->SetYTitle("#Delta #eta");
486 fhPhiNeutral = new TH2F
487 ("PhiNeutral","#phi_{#pi^{0}} vs p_{T #pi^{0}}",
488 nptbins,ptmin,ptmax,nphibins,phimin,phimax);
489 fhPhiNeutral->SetYTitle("#phi_{#pi^{0}} (rad)");
490 fhPhiNeutral->SetXTitle("p_{T #pi^{0}} (GeV/c)");
492 fhEtaNeutral = new TH2F
493 ("EtaNeutral","#eta_{#pi^{0}} vs p_{T #pi^{0}}",
494 nptbins,ptmin,ptmax,netabins,etamin,etamax);
495 fhEtaNeutral->SetYTitle("#eta_{#pi^{0}} (rad)");
496 fhEtaNeutral->SetXTitle("p_{T #pi^{0}} (GeV/c)");
498 fhDeltaPhiNeutral = new TH2F
499 ("DeltaPhiNeutral","#phi_{trigger} - #phi_{#pi^{0}} vs p_{T trigger}",
500 nptbins,ptmin,ptmax,nphibins,phimin,phimax);
501 fhDeltaPhiNeutral->SetYTitle("#Delta #phi");
502 fhDeltaPhiNeutral->SetXTitle("p_{T trigger} (GeV/c)");
504 fhDeltaPhiNeutralPt = new TH2F
505 ("DeltaPhiNeutralPt","#phi_{trigger} - #phi_{#pi^{0}} vs p_{T #pi^{0}}}",
506 nptbins,ptmin,ptmax,140,-2.,5.);
507 fhDeltaPhiNeutralPt->SetYTitle("#Delta #phi");
508 fhDeltaPhiNeutralPt->SetXTitle("p_{T h^{0}} (GeV/c)");
510 fhDeltaPhiUeNeutralPt = new TH2F
511 ("DeltaPhiUeNeutralPt","#phi_{trigger} - #phi_{#pi^{0}} vs p_{T #pi^{0}}}",
512 nptbins,ptmin,ptmax,140,-2.,5.);
513 fhDeltaPhiUeNeutralPt->SetYTitle("#Delta #phi");
514 fhDeltaPhiUeNeutralPt->SetXTitle("p_{T h^{0}} (GeV/c)");
516 fhDeltaEtaNeutral = new TH2F
517 ("DeltaEtaNeutral","#eta_{trigger} - #eta_{#pi^{0}} vs p_{T trigger}",
518 nptbins,ptmin,ptmax,200,-2,2);
519 fhDeltaEtaNeutral->SetYTitle("#Delta #eta");
520 fhDeltaEtaNeutral->SetXTitle("p_{T trigger} (GeV/c)");
522 fhPtImbalanceNeutral =
523 new TH2F("CorrelationNeutral","z_{trigger #pi} = p_{T #pi^{0}} / p_{T trigger}",
524 nptbins,ptmin,ptmax,200,0.,2.);
525 fhPtImbalanceNeutral->SetYTitle("z_{trigger #pi^{0}}");
526 fhPtImbalanceNeutral->SetXTitle("p_{T trigger}");
528 fhPtImbalanceUeNeutral =
529 new TH2F("CorrelationUeNeutral","z_{trigger #pi} = p_{T #pi^{0}} / p_{T trigger}",
530 nptbins,ptmin,ptmax,200,0.,2.);
531 fhPtImbalanceUeNeutral->SetYTitle("z_{trigger #pi^{0}}");
532 fhPtImbalanceUeNeutral->SetXTitle("p_{T trigger}");
535 new TH2F("HbpNeutral","#xi = ln(1/x_{E}) with neutral particles",
536 nptbins,ptmin,ptmax,200,0.,10.);
537 fhPtHbpNeutral->SetYTitle("ln(1/x_{E})");
538 fhPtHbpNeutral->SetXTitle("p_{T trigger}");
541 new TH2F("HbpUeNeutral","#xi = ln(1/x_{E}) with neutral particles",
542 nptbins,ptmin,ptmax,200,0.,10.);
543 fhPtHbpUeNeutral->SetYTitle("ln(1/x_{E})");
544 fhPtHbpUeNeutral->SetXTitle("p_{T trigger}");
547 outputContainer->Add(fhDeltaPhiDeltaEtaNeutral);
548 outputContainer->Add(fhPhiNeutral) ;
549 outputContainer->Add(fhEtaNeutral) ;
550 outputContainer->Add(fhDeltaPhiNeutral) ;
551 outputContainer->Add(fhDeltaPhiNeutralPt) ;
552 outputContainer->Add(fhDeltaPhiUeNeutralPt) ;
553 outputContainer->Add(fhDeltaEtaNeutral) ;
554 outputContainer->Add(fhPtImbalanceNeutral) ;
555 outputContainer->Add(fhPtImbalanceUeNeutral) ;
556 outputContainer->Add(fhPtHbpNeutral) ;
557 outputContainer->Add(fhPtHbpUeNeutral) ;
560 fhDeltaPhiDecayNeutral = new TH2F
561 ("DeltaPhiDecayNeutral","#phi_{Decay} - #phi_{h^{0}} vs p_{T Decay}",
562 nptbins,ptmin,ptmax,140,-2.,5.);
563 fhDeltaPhiDecayNeutral->SetYTitle("#Delta #phi");
564 fhDeltaPhiDecayNeutral->SetXTitle("p_{T Decay} (GeV/c)");
566 fhPtImbalanceDecayNeutral =
567 new TH2F("CorrelationDecayNeutral","z_{trigger h^{0}} = p_{T h^{0}} / p_{T Decay}",
568 nptbins,ptmin,ptmax,200,0.,2.);
569 fhPtImbalanceDecayNeutral->SetYTitle("z_{decay h^{0}}");
570 fhPtImbalanceDecayNeutral->SetXTitle("p_{T decay}");
572 outputContainer->Add(fhDeltaPhiDecayNeutral) ;
573 outputContainer->Add(fhPtImbalanceDecayNeutral) ;
579 fhDeltaPhiUeLeftNeutral = new TH2F
580 ("DeltaPhiUeLeftNeutralPt","#phi_{trigger} - #phi_{#Ueh^{0}} vs p_{T h^{0}} with neutral UE left side range of trigger particles",
581 nptbins,ptmin,ptmax,140,-2.,5.);
582 fhDeltaPhiUeLeftNeutral->SetYTitle("#Delta #phi");
583 fhDeltaPhiUeLeftNeutral->SetXTitle("p_{T h^{0}} (GeV/c)");
584 outputContainer->Add(fhDeltaPhiUeLeftNeutral) ;
586 fhDeltaPhiUeRightNeutral = new TH2F
587 ("DeltaPhiUeRightNeutralPt","#phi_{trigger} - #phi_{#Ueh^{0}} vs p_{T Ueh^{0}} with neutral UE right side range of trigger particles",
588 nptbins,ptmin,ptmax,140,-2.,5.);
589 fhDeltaPhiUeRightNeutral->SetYTitle("#Delta #phi");
590 fhDeltaPhiUeRightNeutral->SetXTitle("p_{T h^{0}} (GeV/c)");
591 outputContainer->Add(fhDeltaPhiUeRightNeutral) ;
593 fhPtImbalanceUeLeftNeutral =
594 new TH2F("CorrelationUeNeutralLeft","z_{trigger h^{0}} = p_{T Ueh^{0}} / p_{T trigger} with neutral UE left side of trigger",
595 nptbins,ptmin,ptmax,140,0.,2.);
596 fhPtImbalanceUeLeftNeutral->SetYTitle("z_{trigger Ueh^{0}}");
597 fhPtImbalanceUeLeftNeutral->SetXTitle("p_{T trigger}");
598 outputContainer->Add(fhPtImbalanceUeLeftNeutral) ;
600 fhPtImbalanceUeRightNeutral =
601 new TH2F("CorrelationUeNeutralRight","z_{trigger h^{0}} = p_{T Ueh^{0}} / p_{T trigger} with neutral UE right side of trigger",
602 nptbins,ptmin,ptmax,200,0.,2.);
603 fhPtImbalanceUeRightNeutral->SetYTitle("z_{trigger Ueh^{0}}");
604 fhPtImbalanceUeRightNeutral->SetXTitle("p_{T trigger}");
605 outputContainer->Add(fhPtImbalanceUeRightNeutral) ;
607 fhPtHbpUeLeftNeutral =
608 new TH2F("HbpUeNeutralLeft","#xi = ln(1/x_{E}) with neutral UE left side of trigger",
609 nptbins,ptmin,ptmax,200,0.,10.);
610 fhPtHbpUeLeftNeutral->SetYTitle("ln(1/x_{E})");
611 fhPtHbpUeLeftNeutral->SetXTitle("p_{T trigger}");
612 outputContainer->Add(fhPtHbpUeLeftNeutral) ;
614 fhPtHbpUeRightNeutral =
615 new TH2F("HbpUeNeutralRight","#xi = ln(1/x_{E}) with neutral UE right side of trigger",
616 nptbins,ptmin,ptmax,200,0.,10.);
617 fhPtHbpUeRightNeutral->SetYTitle("ln(1/x_{E})");
618 fhPtHbpUeRightNeutral->SetXTitle("p_{T trigger}");
619 outputContainer->Add(fhPtHbpUeRightNeutral) ;
623 }//Correlation with neutral hadrons
625 //if data is MC, fill more histograms
628 fh2phiLeadingParticle=new TH2F("fh2phiLeadingParticle","#phi resolustion for trigger particles",nptbins,ptmin,ptmax,100,-1,1);
629 fh2phiLeadingParticle->GetXaxis()->SetTitle("p_{T gen Leading} (GeV/c)");
630 fh2phiLeadingParticle->GetYaxis()->SetTitle("(#phi_{rec}-#phi_{gen})/#phi_{gen}");
632 fhMCLeadingCount=new TH1F("MCLeadingTriggerCount","MCLeadingTriggerCount",nptbins,ptmin,ptmax);
633 fhMCLeadingCount->SetXTitle("p_{T trig}");
635 fhMCEtaCharged = new TH2F
636 ("MCEtaCharged","MC #eta_{h^{#pm}} vs p_{T #pm}",
637 nptbins,ptmin,ptmax,netabins,etamin,etamax);
638 fhMCEtaCharged->SetYTitle("#eta_{h^{#pm}} (rad)");
639 fhMCEtaCharged->SetXTitle("p_{T #pm} (GeV/c)");
641 fhMCPhiCharged = new TH2F
642 ("MCPhiCharged","#MC phi_{h^{#pm}} vs p_{T #pm}",
643 200,ptmin,ptmax,nphibins,phimin,phimax);
644 fhMCPhiCharged->SetYTitle("MC #phi_{h^{#pm}} (rad)");
645 fhMCPhiCharged->SetXTitle("p_{T #pm} (GeV/c)");
647 fhMCDeltaPhiDeltaEtaCharged = new TH2F
648 ("MCDeltaPhiDeltaEtaCharged","#MC phi_{trigger} - #phi_{h^{#pm}} vs #eta_{trigger} - #eta_{h^{#pm}}",
649 140,-2.,5.,200,-2,2);
650 fhMCDeltaPhiDeltaEtaCharged->SetXTitle("#Delta #phi");
651 fhMCDeltaPhiDeltaEtaCharged->SetYTitle("#Delta #eta");
653 fhMCDeltaEtaCharged = new TH2F
654 ("MCDeltaEtaCharged","MC #eta_{trigger} - #eta_{h^{#pm}} vs p_{T trigger} and p_{T assoc}",
655 nptbins,ptmin,ptmax,200,-2,2);
656 fhMCDeltaEtaCharged->SetYTitle("#Delta #eta");
657 fhMCDeltaEtaCharged->SetXTitle("p_{T trigger} (GeV/c)");
659 fhMCDeltaPhiCharged = new TH2F
660 ("MCDeltaPhiCharged","#phi_{trigger} - #phi_{h^{#pm}} vs p_{T trigger}",
661 nptbins,ptmin,ptmax,140,-2.,5.);
662 fhMCDeltaPhiCharged->SetYTitle("#Delta #phi");
663 fhMCDeltaPhiCharged->SetXTitle("p_{T trigger} (GeV/c)");
665 fhMCDeltaPhiChargedPt = new TH2F
666 ("MCDeltaPhiChargedPt","MC #phi_{trigger} - #phi_{#h^{#pm}} vs p_{T h^{#pm}}",
667 nptbins,ptmin,ptmax,140,-2.,5.);
668 fhMCDeltaPhiChargedPt->SetYTitle("#Delta #phi");
669 fhMCDeltaPhiChargedPt->SetXTitle("p_{T h^{#pm}} (GeV/c)");
671 fhMCPtImbalanceCharged =
672 new TH2F("MCCorrelationCharged","z_{trigger h^{#pm}} = p_{T h^{#pm}} / p_{T trigger}",
673 nptbins,ptmin,ptmax,200,0.,2.);
674 fhMCPtImbalanceCharged->SetYTitle("z_{trigger h^{#pm}}");
675 fhMCPtImbalanceCharged->SetXTitle("p_{T trigger}");
678 new TH2F("MCHbpCharged","MC #xi = ln(1/x_{E}) with charged hadrons",
679 nptbins,ptmin,ptmax,200,0.,10.);
680 fhMCPtHbpCharged->SetYTitle("ln(1/x_{E})");
681 fhMCPtHbpCharged->SetXTitle("p_{T trigger}");
684 new TH2F("MCPtTrigPout","AOD MC Pout with triggers",
685 nptbins,ptmin,ptmax,2*nptbins,-ptmax,ptmax);
686 fhMCPtTrigPout->SetYTitle("p_{out} (GeV/c)");
687 fhMCPtTrigPout->SetXTitle("p_{T trigger} (GeV/c)");
689 fhMCPtAssocDeltaPhi =
690 new TH2F("fhMCPtAssocDeltaPhi","AOD MC delta phi with associated charged hadrons",
691 nptbins,ptmin,ptmax,140,-2.,5.);
692 fhMCPtAssocDeltaPhi->SetYTitle("#Delta #phi");
693 fhMCPtAssocDeltaPhi->SetXTitle("p_{T trigger} (GeV/c)");
695 outputContainer->Add(fh2phiLeadingParticle);
696 outputContainer->Add(fhMCLeadingCount);
697 outputContainer->Add(fhMCDeltaPhiDeltaEtaCharged);
698 outputContainer->Add(fhMCPhiCharged) ;
699 outputContainer->Add(fhMCEtaCharged) ;
700 outputContainer->Add(fhMCDeltaEtaCharged) ;
701 outputContainer->Add(fhMCDeltaPhiCharged) ;
703 outputContainer->Add(fhMCDeltaPhiChargedPt) ;
704 outputContainer->Add(fhMCPtImbalanceCharged) ;
705 outputContainer->Add(fhMCPtHbpCharged) ;
706 outputContainer->Add(fhMCPtTrigPout) ;
707 outputContainer->Add(fhMCPtAssocDeltaPhi) ;
711 return outputContainer;
715 //____________________________________________________
716 void AliAnaParticleHadronCorrelation::InitParameters()
719 //Initialize the parameters of the analysis.
720 SetInputAODName("PWG4Particle");
721 SetAODObjArrayName("Hadrons");
722 AddToHistogramsName("AnaHadronCorr_");
724 SetPtCutRange(0.,300);
725 fDeltaPhiMinCut = 1.5 ;
726 fDeltaPhiMaxCut = 4.5 ;
727 fSelectIsolated = kFALSE;
728 fMakeSeveralUE = kFALSE;
729 fUeDeltaPhiMinCut = 1. ;
730 fUeDeltaPhiMaxCut = 1.5 ;
731 fNeutralCorr = kFALSE ;
732 fPi0Trigger = kFALSE ;
733 fMakeAbsoluteLeading = kTRUE;
736 fAssocPtBinLimit[0] = 1.5 ;
737 fAssocPtBinLimit[1] = 3. ;
738 fAssocPtBinLimit[2] = 5. ;
739 fAssocPtBinLimit[3] = 7. ;
740 fAssocPtBinLimit[4] = 9. ;
741 fAssocPtBinLimit[5] = 12. ;
742 fAssocPtBinLimit[6] = 15. ;
743 fAssocPtBinLimit[7] = 20. ;
744 fAssocPtBinLimit[8] = 100.;
745 fAssocPtBinLimit[9] = 200.;
749 //__________________________________________________________
750 void AliAnaParticleHadronCorrelation::MakeAnalysisFillAOD()
752 //Particle-Hadron Correlation Analysis, fill AODs
754 if(!GetInputAODBranch())
756 printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillAOD() - No input particles in AOD with name branch < %s >, STOP \n",GetInputAODName().Data());
760 if(strcmp(GetInputAODBranch()->GetClass()->GetName(), "AliAODPWG4ParticleCorrelation"))
762 printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillAOD() - Wrong type of AOD object, change AOD class name in input AOD: It should be <AliAODPWG4ParticleCorrelation> and not <%s> \n",GetInputAODBranch()->GetClass()->GetName());
767 printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillAOD() - Begin hadron correlation analysis, fill AODs \n");
768 printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillAOD() - In particle branch aod entries %d\n", GetInputAODBranch()->GetEntriesFast());
769 printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillAOD() - In CTS aod entries %d\n", GetCTSTracks() ->GetEntriesFast());
770 printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillAOD() - In EMCAL aod entries %d\n", GetEMCALClusters()->GetEntriesFast());
771 printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillAOD() - In PHOS aod entries %d\n", GetPHOSClusters() ->GetEntriesFast());
774 //Get the vertex and check it is not too large in z
775 Double_t v[3] = {0,0,0}; //vertex ;
776 GetReader()->GetVertex(v);
777 if(!GetMixedEvent() && TMath::Abs(v[2]) > GetZvertexCut()) return ;
779 //Loop on stored AOD particles, find leading trigger
780 Double_t ptTrig = fMinTriggerPt ;
781 fLeadingTriggerIndex = -1 ;
782 Int_t naod = GetInputAODBranch()->GetEntriesFast() ;
783 for(Int_t iaod = 0; iaod < naod ; iaod++)
785 AliAODPWG4ParticleCorrelation* particle = (AliAODPWG4ParticleCorrelation*) (GetInputAODBranch()->At(iaod));
787 // Vertex cut in case of mixing
788 Int_t check = CheckMixedEventVertex(particle->GetCaloLabel(0), particle->GetTrackLabel(0));
789 if(check == 0) continue;
790 if(check == -1) return;
792 // find the leading particles with highest momentum
793 if (particle->Pt() > ptTrig)
795 ptTrig = particle->Pt() ;
796 fLeadingTriggerIndex = iaod ;
798 }// finish search of leading trigger particle
801 //Do correlation with leading particle
802 if(fLeadingTriggerIndex >= 0)
805 AliAODPWG4ParticleCorrelation* particle = (AliAODPWG4ParticleCorrelation*) (GetInputAODBranch()->At(fLeadingTriggerIndex));
807 //check if the particle is isolated or if we want to take the isolation into account
808 if(OnlyIsolated() && !particle->IsIsolated()) return;
810 //Make correlation with charged hadrons
811 Bool_t okcharged = kTRUE;
812 Bool_t okneutral = kTRUE;
813 if(GetReader()->IsCTSSwitchedOn() )
814 okcharged = MakeChargedCorrelation(particle, GetCTSTracks(),kFALSE);
816 TObjArray * pi0list = (TObjArray*) GetAODBranch(fPi0AODBranchName); //For the future, foresee more possible pi0 lists
817 if(fNeutralCorr && pi0list && pi0list->GetEntriesFast() > 0)
818 okneutral = MakeNeutralCorrelation(particle, pi0list,kFALSE);
822 if(GetDebug() > 1) printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillAOD() - End fill AODs \n");
826 //_________________________________________________________________
827 void AliAnaParticleHadronCorrelation::MakeAnalysisFillHistograms()
829 //Particle-Hadron Correlation Analysis, fill histograms
831 if(!GetInputAODBranch()){
832 printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillHistograms() - No input particles in AOD with name branch < %s >, STOP \n",GetInputAODName().Data());
837 printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillHistograms() - Begin hadron correlation analysis, fill histograms \n");
838 printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillHistograms() - In particle branch aod entries %d\n", GetInputAODBranch()->GetEntriesFast());
841 //Get the vertex and check it is not too large in z
842 Double_t v[3] = {0,0,0}; //vertex ;
843 GetReader()->GetVertex(v);
844 if(!GetMixedEvent() && TMath::Abs(v[2]) > GetZvertexCut()) return ;
846 //Loop on stored AOD particles, find leading
847 Double_t ptTrig = fMinTriggerPt;
848 if(fLeadingTriggerIndex < 0)
850 //Search leading if not done before
851 Int_t naod = GetInputAODBranch()->GetEntriesFast() ;
852 for(Int_t iaod = 0; iaod < naod ; iaod++)
853 { //loop on input trigger AOD file
854 AliAODPWG4ParticleCorrelation* particle = (AliAODPWG4ParticleCorrelation*) (GetInputAODBranch()->At(iaod));
856 // Vertex cut in case of mixing
857 Int_t check = CheckMixedEventVertex(particle->GetCaloLabel(0), particle->GetTrackLabel(0));
858 if(check == 0) continue;
859 if(check == -1) return;
861 //check if the particle is isolated or if we want to take the isolation into account
862 if(OnlyIsolated() && !particle->IsIsolated()) continue;
864 //check if inside the vertex cut
865 //find the leading particles with highest momentum
866 if (particle->Pt() > ptTrig)
868 ptTrig = particle->Pt() ;
869 fLeadingTriggerIndex = iaod ;
872 }// Finish search of leading trigger particle
873 }// Search leading if not done before
875 if(fLeadingTriggerIndex >= 0 )
876 { //using trigger particle to do correlations
878 AliAODPWG4ParticleCorrelation* particle = (AliAODPWG4ParticleCorrelation*) (GetInputAODBranch()->At(fLeadingTriggerIndex));
880 // Check if trigger is in fiducial region
881 if(IsFiducialCutOn())
883 Bool_t in = GetFiducialCut()->IsInFiducialCut(*particle->Momentum(),particle->GetDetector()) ;
887 // Check if the particle is isolated or if we want to take the isolation into account
888 if(OnlyIsolated() && !particle->IsIsolated()) return;
890 // Make correlation with charged hadrons
891 Bool_t okcharged = kTRUE;
892 Bool_t okneutral = kTRUE;
893 if(GetReader()->IsCTSSwitchedOn() )
895 okcharged = MakeChargedCorrelation(particle, GetCTSTracks(),kTRUE);
898 MakeMCChargedCorrelation(particle);
902 TObjArray * pi0list = (TObjArray*) GetAODBranch(fPi0AODBranchName); //For the future, foresee more possible pi0 lists
903 if(fNeutralCorr && pi0list)
905 if(pi0list->GetEntriesFast() > 0)
906 okneutral = MakeNeutralCorrelation(particle, pi0list,kTRUE);
909 // Fill leading particle histogram if correlation went well and
910 // no problem was found, like not absolute leading, or bad vertex in mixing.
911 if(okcharged && okneutral)
913 fhPtLeading->Fill(particle->Pt());
914 Float_t phi = particle->Phi();
915 if(phi<0)phi+=TMath::TwoPi();
916 fhPhiLeading->Fill(particle->Pt(), phi);
917 fhEtaLeading->Fill(particle->Pt(), particle->Eta());
918 }//ok charged && neutral
921 //Reinit for next event
922 fLeadingTriggerIndex = -1;
924 if(GetDebug() > 1) printf("AliAnaParticleHadronCorrelation::MakeAnalysisFillHistograms() - End fill histograms \n");
927 //___________________________________________________________________________________________________________
928 Bool_t AliAnaParticleHadronCorrelation::MakeChargedCorrelation(AliAODPWG4ParticleCorrelation *aodParticle,
929 const TObjArray* pl, const Bool_t bFillHisto)
931 // Charged Hadron Correlation Analysis
932 if(GetDebug() > 1)printf("AliAnaParticleHadronCorrelation::MakeChargedCorrelation() - Make trigger particle - charged hadron correlation \n");
934 Int_t evtIndex11 = -1 ; //cluster trigger or pi0 trigger
935 Int_t evtIndex12 = -1 ; // pi0 trigger
936 Int_t evtIndex13 = -1 ; // charged trigger
937 Int_t indexPhoton1 = -1 ;
938 Int_t indexPhoton2 = -1 ;
940 Double_t v[3] = {0,0,0}; //vertex ;
941 GetReader()->GetVertex(v);
945 evtIndex11 = GetMixedEvent()->EventIndexForCaloCluster(aodParticle->GetCaloLabel(0)) ;
946 evtIndex12 = GetMixedEvent()->EventIndexForCaloCluster(aodParticle->GetCaloLabel(1)) ;
947 evtIndex13 = GetMixedEvent()->EventIndex(aodParticle->GetTrackLabel(0)) ;
950 Double_t phiTrig = aodParticle->Phi();
951 Double_t etaTrig = aodParticle->Eta();
952 Double_t ptTrig = aodParticle->Pt();
954 Double_t pt = -100. ;
955 Double_t px = -100. ;
956 Double_t py = -100. ;
957 Double_t rat = -100. ;
958 Double_t xE = -100. ;
959 Double_t cosi = -100. ;
960 Double_t phi = -100. ;
961 Double_t eta = -100. ;
962 Double_t pout = -100. ;
964 Double_t ptDecay1 = 0. ;
965 Double_t pxDecay1 = 0. ;
966 Double_t pyDecay1 = 0. ;
967 Double_t phiDecay1 = 0. ;
968 Double_t ptDecay2 = 0. ;
969 Double_t pxDecay2 = 0. ;
970 Double_t pyDecay2 = 0. ;
971 Double_t phiDecay2 = 0. ;
973 Double_t ratDecay1 = -100. ;
974 Double_t ratDecay2 = -100. ;
975 Double_t deltaPhi = -100. ;
976 Double_t deltaPhiOrg = -100. ;
977 Double_t deltaPhiDecay1 = -100. ;
978 Double_t deltaPhiDecay2 = -100. ;
981 TLorentzVector photonMom ;
982 TObjArray * clusters = 0x0 ;
983 TObjArray * reftracks = 0x0;
985 Int_t nTracks = GetCTSTracks()->GetEntriesFast() ;
989 indexPhoton1 = aodParticle->GetCaloLabel (0);
990 indexPhoton2 = aodParticle->GetCaloLabel (1);
991 if(GetDebug() > 1)printf("indexPhoton1 = %d, indexPhoton2 = %d \n", indexPhoton1, indexPhoton2);
993 if(indexPhoton1!=-1 && indexPhoton2!=-1)
995 if(aodParticle->GetDetector()=="EMCAL") clusters = GetEMCALClusters() ;
996 else clusters = GetPHOSClusters() ;
998 for(Int_t iclus = 0; iclus < clusters->GetEntriesFast(); iclus++)
1000 AliVCluster * photon = (AliVCluster*) (clusters->At(iclus));
1001 photon->GetMomentum(photonMom,GetVertex(0)) ;
1002 if(photon->GetID()==indexPhoton1)
1004 ptDecay1 = photonMom.Pt();
1005 pxDecay1 = photonMom.Px();
1006 pyDecay1 = photonMom.Py();
1007 phiDecay1 = photonMom.Phi();
1008 if(ptTrig && bFillHisto) fhPtPi0DecayRatio->Fill(ptTrig, ptDecay1/ptTrig);
1010 if(photon->GetID()==indexPhoton2)
1012 ptDecay2 = photonMom.Pt();
1013 pxDecay2 = photonMom.Px();
1014 pyDecay2 = photonMom.Py();
1015 phiDecay2 = photonMom.Phi();
1016 if(ptTrig && bFillHisto) fhPtPi0DecayRatio->Fill(ptTrig, ptDecay2/ptTrig);
1019 if(GetDebug() > 1)printf("Photon1 = %f, Photon2 = %f \n", ptDecay1, ptDecay2);
1022 } //index of decay photons found
1023 } //make decay-hadron correlation
1025 //Track loop, select tracks with good pt, phi and fill AODs or histograms
1026 for(Int_t ipr = 0;ipr < pl->GetEntriesFast() ; ipr ++ )
1028 AliVTrack * track = (AliVTrack *) (pl->At(ipr)) ;
1030 Double_t mom[3] = {track->Px(),track->Py(),track->Pz()};
1031 p3.SetXYZ(mom[0],mom[1],mom[2]);
1037 if(phi < 0) phi+=TMath::TwoPi();
1039 //Select only hadrons in pt range
1040 if(pt < fMinAssocPt || pt > fMaxAssocPt) continue ;
1042 //remove trigger itself for correlation when use charged triggers
1043 if( track->GetID() == aodParticle->GetTrackLabel(0) || track->GetID() == aodParticle->GetTrackLabel(1) ||
1044 track->GetID() == aodParticle->GetTrackLabel(2) || track->GetID() == aodParticle->GetTrackLabel(3) )
1047 //jump out this event if near side associated particle pt larger than trigger
1048 if (fMakeAbsoluteLeading)
1050 if(pt > ptTrig && TMath::Abs(phi-phiTrig)<TMath::PiOver2()) return kFALSE;
1053 //Only for mixed event
1054 Int_t evtIndex2 = 0 ;
1055 if (GetMixedEvent())
1057 evtIndex2 = GetMixedEvent()->EventIndex(track->GetID()) ;
1058 if (evtIndex11 == evtIndex2 || evtIndex12 == evtIndex2 || evtIndex13 == evtIndex2 ) // photon and track from different events
1061 if (TMath::Abs(GetVertex(evtIndex2)[2]) > GetZvertexCut())
1067 if(indexPhoton1!=-1 && indexPhoton2!=-1)
1069 if(ptDecay1) ratDecay1 = pt/ptDecay1 ;
1070 if(ptDecay2) ratDecay2 = pt/ptDecay2 ;
1071 deltaPhiDecay1 = phiDecay1-phi;
1072 deltaPhiDecay2 = phiDecay2-phi;
1073 if(deltaPhiDecay1< -TMath::PiOver2()) deltaPhiDecay1+=TMath::TwoPi();
1074 if(deltaPhiDecay1>3*TMath::PiOver2()) deltaPhiDecay1-=TMath::TwoPi();
1075 if(deltaPhiDecay2< -TMath::PiOver2()) deltaPhiDecay2+=TMath::TwoPi();
1076 if(deltaPhiDecay2>3*TMath::PiOver2()) deltaPhiDecay2-=TMath::TwoPi();
1078 } //do decay-hadron correlation
1080 //Selection within angular range
1081 deltaPhi = phiTrig-phi;
1082 deltaPhiOrg = deltaPhi;
1083 if(deltaPhi <= -TMath::PiOver2()) deltaPhi+=TMath::TwoPi();
1084 if(deltaPhi > 3*TMath::PiOver2()) deltaPhi-=TMath::TwoPi();
1087 pout = pt*TMath::Sin(deltaPhi) ;
1088 xE =-pt/ptTrig*TMath::Cos(deltaPhi); // -(px*pxTrig+py*pyTrig)/(ptTrig*ptTrig);
1089 //if(xE <0.)xE =-xE;
1091 if(xE > 0 ) cosi = TMath::Log(1./xE);
1094 printf("AliAnaParticleHadronCorrelation::MakeChargedCorrelation() - Charged hadron: pt %f, phi %f, phi trigger %f. Cuts: delta phi %2.2f < %2.2f < %2.2f, pT Trig min %2.2f \n",
1095 pt,phi, phiTrig,fDeltaPhiMinCut, deltaPhi, fDeltaPhiMaxCut, fMinTriggerPt);
1100 Int_t assocBin = -1;
1101 for(Int_t i = 0 ; i < fNAssocPtBins ; i++){
1102 if(pt > fAssocPtBinLimit[i] && pt < fAssocPtBinLimit[i+1]) assocBin= i;
1105 fhAssocPt->Fill(ptTrig,pt);
1107 //if(xE >= 1 ) printf("pTTrig = %f, pTHadron = %f, xE = %f\n",ptTrig,pt, xE);
1108 fhXE->Fill(ptTrig, xE) ;
1110 if(TMath::Cos(deltaPhi) < 0 && assocBin >= 0 )//away side
1111 fhXEAssocPtBin[assocBin]->Fill(ptTrig, xE) ;
1113 //Hardcoded values, BAD, FIXME
1114 Double_t dphiBrad = atan2(sin(deltaPhiOrg), cos(deltaPhiOrg))/TMath::Pi();//-1 to 1
1115 if(TMath::Abs(dphiBrad)>0.325 && TMath::Abs(dphiBrad)<0.475)
1117 fhAssocPtBkg->Fill(ptTrig, pt);
1120 if(dphiBrad<-1./3) dphiBrad += 2;
1121 fhDeltaPhiBrad->Fill(ptTrig, dphiBrad);
1125 fhDeltaPhiBradAssocPtBin[assocBin]->Fill(ptTrig, dphiBrad);
1126 fhDeltaPhiAssocPtBin [assocBin]->Fill(ptTrig, deltaPhi);
1127 if(track->GetHMPIDsignal()>0)
1129 //printf("Track pt %f with HMPID signal %f \n",pt,track->GetHMPIDsignal());
1130 fhDeltaPhiAssocPtBinHMPID[assocBin]->Fill(ptTrig, deltaPhi);
1133 if(phi > 5*TMath::DegToRad() && phi < 20*TMath::DegToRad()){
1134 //printf("Track pt %f in HMPID acceptance phi %f \n ",pt,phi*TMath::RadToDeg() );
1135 fhDeltaPhiAssocPtBinHMPIDAcc[assocBin]->Fill(ptTrig, deltaPhi);
1140 fhEtaCharged ->Fill(pt,eta);
1141 fhPhiCharged ->Fill(pt,phi);
1142 fhDeltaEtaCharged->Fill(ptTrig,aodParticle->Eta()-eta);
1143 fhDeltaPhiCharged->Fill(ptTrig, deltaPhi);
1144 if(pt >2 ) fhDeltaPhiDeltaEtaCharged->Fill(deltaPhi,aodParticle->Eta()-eta);
1146 if(GetDebug() > 2 ) printf("AliAnaParticleHadronCorrelation::MakeChargedCorrelation() - Selected charge for momentum imbalance: pt %2.2f, phi %2.2f, eta %2.2f \n",pt,phi,eta);
1147 //fill different multiplicity histogram
1148 if(DoEventSelect()){
1149 for(Int_t im=0; im<GetMultiBin(); im++){
1150 if(nTracks < ( GetMaxMulti() - GetMinMulti() )/GetMultiBin()*(im+1)){
1151 fhTrigDeltaPhiCharged[im]->Fill(ptTrig,deltaPhi);
1152 fhTrigDeltaEtaCharged[im]->Fill(ptTrig,aodParticle->Eta()-eta);
1157 //delta phi cut for correlation
1158 if ( (deltaPhi > fDeltaPhiMinCut) && (deltaPhi < fDeltaPhiMaxCut) )
1160 fhDeltaPhiChargedPt ->Fill(pt,deltaPhi);
1161 fhPtImbalanceCharged->Fill(ptTrig,xE);
1162 fhPtHbpCharged ->Fill(ptTrig, cosi);
1163 fhPtTrigPout ->Fill(ptTrig, pout) ;
1164 fhPtTrigCharged->Fill(ptTrig, pt) ;
1165 if(track->Charge() > 0) fhPtImbalancePosCharged->Fill(ptTrig,xE) ;
1166 else fhPtImbalanceNegCharged->Fill(ptTrig,xE) ;
1167 //fill different multiplicity histogram
1168 if(DoEventSelect()){
1169 for(Int_t im=0; im<GetMultiBin(); im++){
1170 if(nTracks < ( GetMaxMulti() - GetMinMulti() )/GetMultiBin()*(im+1))
1171 fhTrigCorr[im]->Fill(ptTrig,xE);
1173 } //multiplicity events selection
1174 } //delta phi cut for correlation
1175 else if ( (deltaPhi > fUeDeltaPhiMinCut) && (deltaPhi < fUeDeltaPhiMaxCut) )
1177 fhDeltaPhiUeChargedPt->Fill(pt,deltaPhi);
1178 Double_t randomphi = gRandom->Uniform(TMath::Pi()/2,3*TMath::Pi()/2);
1179 Double_t uexE = -(pt/ptTrig)*TMath::Cos(randomphi);
1180 if(uexE < 0.) uexE = -uexE;
1181 if(GetDebug() > 1)printf("AliAnaParticleHadronCorrelation::MakeChargedCorrelation() - xe = %f, uexE = %f \n", xE, uexE);
1182 fhPtImbalanceUeCharged->Fill(ptTrig,uexE);
1183 if(uexE>0)fhPtHbpUeCharged->Fill(ptTrig,TMath::Log(1/uexE));
1184 if(DoEventSelect()){
1185 for(Int_t im=0; im<GetMultiBin(); im++){
1186 if(nTracks < ( GetMaxMulti() - GetMinMulti() )/GetMultiBin()*(im+1))
1187 fhTrigUeCorr[im]->Fill(ptTrig,xE);
1189 } //multiplicity events selection
1195 if(indexPhoton1!=-1 && indexPhoton2!=-1)
1197 fhDeltaPhiDecayCharged->Fill(ptDecay1, deltaPhiDecay1);
1198 fhDeltaPhiDecayCharged->Fill(ptDecay2, deltaPhiDecay2);
1200 if(GetDebug() > 1)printf("AliAnaParticleHadronCorrelation::MakeChargedCorrelation() - deltaPhoton1 = %f, deltaPhoton2 = %f \n", deltaPhiDecay1, deltaPhiDecay2);
1202 if( (deltaPhiDecay1 > fDeltaPhiMinCut) && ( deltaPhiDecay1 < fDeltaPhiMaxCut) )
1203 fhPtImbalanceDecayCharged->Fill(ptDecay1,ratDecay1);
1205 if( (deltaPhiDecay2 > fDeltaPhiMinCut) && ( deltaPhiDecay2 < fDeltaPhiMaxCut) )
1206 fhPtImbalanceDecayCharged->Fill(ptDecay2,ratDecay2);
1208 if(GetDebug() > 1)printf("AliAnaParticleHadronCorrelation::MakeChargedCorrelation() - ratPhoton1 = %f, ratPhoton2 = %f \n", pt/ptDecay1, pt/ptDecay2);
1210 } //index of decay photons found
1211 } //make decay-hadron correlation
1213 //several UE calculation
1216 if((deltaPhi<-fUeDeltaPhiMinCut) && (deltaPhi >-fUeDeltaPhiMaxCut))
1218 fhDeltaPhiUeLeftCharged->Fill(pt,deltaPhi);
1219 fhPtImbalanceUeLeftCharged->Fill(ptTrig,rat);
1220 fhPtHbpUeLeftCharged->Fill(ptTrig,cosi);
1223 if((deltaPhi>fUeDeltaPhiMinCut) && (deltaPhi <fUeDeltaPhiMaxCut))
1225 fhDeltaPhiUeRightCharged->Fill(pt,deltaPhi);
1226 fhPtImbalanceUeRightCharged->Fill(ptTrig,rat);
1227 fhPtHbpUeRightCharged->Fill(ptTrig,cosi);
1229 } //several UE calculation
1231 //Fill leading particle histogram
1232 fhPtLeading->Fill(ptTrig);
1233 if(phiTrig<0)phiTrig+=TMath::TwoPi();
1234 fhPhiLeading->Fill(ptTrig, phiTrig);
1235 fhEtaLeading->Fill(ptTrig, etaTrig);
1243 reftracks = new TObjArray(0);
1244 TString trackname = Form("%s+Tracks", GetAODObjArrayName().Data());
1245 reftracks->SetName(trackname.Data());
1246 reftracks->SetOwner(kFALSE);
1248 reftracks->Add(track);
1249 }//aod particle loop
1252 //Fill AOD with reference tracks, if not filling histograms
1253 if(!bFillHisto && reftracks)
1255 aodParticle->AddObjArray(reftracks);
1262 //________________________________________________________________________________________________________________
1263 Bool_t AliAnaParticleHadronCorrelation::MakeNeutralCorrelation(AliAODPWG4ParticleCorrelation * const aodParticle,
1264 const TObjArray* pi0list, const Bool_t bFillHisto)
1266 // Neutral Pion Correlation Analysis
1267 if(GetDebug() > 1) printf("AliAnaParticleHadronCorrelation::MakeNeutralCorrelation() - Make trigger particle - pi0 correlation, %d pi0's \n",pi0list->GetEntriesFast());
1269 Int_t evtIndex11 = 0 ;
1270 Int_t evtIndex12 = 0 ;
1271 if (GetMixedEvent())
1273 evtIndex11 = GetMixedEvent()->EventIndexForCaloCluster(aodParticle->GetCaloLabel(0)) ;
1274 evtIndex12 = GetMixedEvent()->EventIndexForCaloCluster(aodParticle->GetCaloLabel(1)) ;
1277 Double_t pt = -100. ;
1278 Double_t px = -100. ;
1279 Double_t py = -100. ;
1280 Double_t rat = -100. ;
1281 Double_t phi = -100. ;
1282 Double_t eta = -100. ;
1283 Double_t xE = -100. ;
1284 Double_t cosi = -100. ;
1286 Double_t ptTrig = aodParticle->Pt();
1287 Double_t phiTrig = aodParticle->Phi();
1288 Double_t etaTrig = aodParticle->Eta();
1289 //Double_t pxTrig = aodParticle->Px();
1290 //Double_t pyTrig = aodParticle->Py();
1292 Int_t indexPhoton1 =-1 ;
1293 Int_t indexPhoton2 =-1 ;
1294 Double_t ptDecay1 = 0. ;
1295 Double_t pxDecay1 = 0. ;
1296 Double_t pyDecay1 = 0. ;
1297 Double_t phiDecay1 = 0. ;
1298 Double_t ptDecay2 = 0. ;
1299 Double_t pxDecay2 = 0. ;
1300 Double_t pyDecay2 = 0. ;
1301 Double_t phiDecay2 = 0. ;
1303 Double_t ratDecay1 = -100. ;
1304 Double_t ratDecay2 = -100. ;
1305 Double_t deltaPhi = -100. ;
1306 Double_t deltaPhiDecay1 = -100. ;
1307 Double_t deltaPhiDecay2 = -100. ;
1309 TObjArray * clusters = 0x0 ;
1310 TLorentzVector photonMom ;
1313 indexPhoton1 = aodParticle->GetCaloLabel (0);
1314 indexPhoton2 = aodParticle->GetCaloLabel (1);
1316 printf("AliAnaParticleHadronCorrelation::MakeNeutralCorrelationFillHistograms() - indexPhoton1 = %d, indexPhoton2 = %d \n", indexPhoton1, indexPhoton2);
1318 if(indexPhoton1!=-1 && indexPhoton2!=-1)
1320 if(aodParticle->GetDetector()=="EMCAL") clusters = GetEMCALClusters() ;
1321 else clusters = GetPHOSClusters() ;
1323 for(Int_t iclus = 0; iclus < clusters->GetEntriesFast(); iclus++)
1325 AliVCluster * photon = (AliVCluster*) (clusters->At(iclus));
1326 photon->GetMomentum(photonMom,GetVertex(0)) ;
1327 if(photon->GetID()==indexPhoton1)
1329 ptDecay1 = photonMom.Pt();
1330 pxDecay1 = photonMom.Px();
1331 pyDecay1 = photonMom.Py();
1332 phiDecay1 = photonMom.Phi();
1335 if(photon->GetID()==indexPhoton2)
1337 ptDecay2 = photonMom.Pt();
1338 pxDecay2 = photonMom.Px();
1339 pyDecay2 = photonMom.Py();
1340 phiDecay2 = photonMom.Phi();
1344 printf("AliAnaParticleHadronCorrelation::MakeNeutralCorrelationFillHistograms() - Photon1 = %f, Photon2 = %f \n", ptDecay1, ptDecay2);
1347 } //index of decay photons found
1349 if(ptTrig && bFillHisto) fhPtPi0DecayRatio->Fill(ptTrig, ptDecay1/ptTrig, ptDecay2/ptTrig);
1351 } //make decay-hadron correlation
1353 TObjArray * refpi0 =0x0;
1356 //Loop on stored AOD pi0
1358 Int_t naod = pi0list->GetEntriesFast();
1360 printf("AliAnaParticleHadronCorrelation::MakeNeutralCorrelationFillHistograms() - aod branch entries %d\n", naod);
1362 for(Int_t iaod = 0; iaod < naod ; iaod++)
1364 AliAODPWG4Particle* pi0 = (AliAODPWG4Particle*) (pi0list->At(iaod));
1366 Int_t evtIndex2 = 0 ;
1367 Int_t evtIndex3 = 0 ;
1368 if (GetMixedEvent())
1370 evtIndex2 = GetMixedEvent()->EventIndexForCaloCluster(pi0->GetCaloLabel(0)) ;
1371 evtIndex3 = GetMixedEvent()->EventIndexForCaloCluster(pi0->GetCaloLabel(1)) ;
1373 if (evtIndex11 == evtIndex2 || evtIndex12 == evtIndex2 ||
1374 evtIndex11 == evtIndex3 || evtIndex12 == evtIndex3) // trigger and pi0 are not from different events
1378 //Int_t pdg = pi0->GetPdg();
1379 //if(pdg != AliCaloPID::kPi0) continue;
1385 if(pt < fMinAssocPt || pt > fMaxAssocPt) continue ;
1387 //jumped out this event if near side associated particle pt larger than trigger
1388 if(pt > ptTrig && TMath::Abs(phi-phiTrig)<TMath::PiOver2()) break ;
1390 //Selection within angular range
1392 //Float_t deltaPhi = TMath::Abs(phiTrig-phi);
1393 //if( (deltaPhi < fDeltaPhiMinCut) || ( deltaPhi > fDeltaPhiMaxCut) ) continue ;
1398 deltaPhi = phiTrig-phi;
1399 if(deltaPhi<-TMath::PiOver2()) deltaPhi+=TMath::TwoPi();
1400 if(deltaPhi>3*TMath::PiOver2()) deltaPhi-=TMath::TwoPi();
1407 xE =-pt/ptTrig*TMath::Cos(deltaPhi); // -(px*pxTrig+py*pyTrig)/(ptTrig*ptTrig);
1408 //if(xE <0.)xE =-xE;
1410 if(xE > 0 ) cosi = TMath::Log(1./xE);
1414 if(indexPhoton1!=-1 && indexPhoton2!=-1)
1416 if(ptDecay1) ratDecay1 = pt/ptDecay1 ;
1417 if(ptDecay2) ratDecay2 = pt/ptDecay2 ;
1418 deltaPhiDecay1 = phiDecay1-phi;
1419 deltaPhiDecay2 = phiDecay2-phi;
1420 if(deltaPhiDecay1< -TMath::PiOver2()) deltaPhiDecay1+=TMath::TwoPi();
1421 if(deltaPhiDecay1>3*TMath::PiOver2()) deltaPhiDecay1-=TMath::TwoPi();
1422 if(deltaPhiDecay2< -TMath::PiOver2()) deltaPhiDecay2+=TMath::TwoPi();
1423 if(deltaPhiDecay2>3*TMath::PiOver2()) deltaPhiDecay2-=TMath::TwoPi();
1424 fhDeltaPhiDecayNeutral->Fill(ptDecay1, deltaPhiDecay1);
1425 fhDeltaPhiDecayNeutral->Fill(ptDecay2, deltaPhiDecay2);
1426 if(GetDebug() > 1)printf("AliAnaParticleHadronCorrelation::MakeNeutralCorrelation() - deltaPhoton1 = %f, deltaPhoton2 = %f \n", deltaPhiDecay1, deltaPhiDecay2);
1427 if( (deltaPhiDecay1 > fDeltaPhiMinCut) && ( deltaPhiDecay1 < fDeltaPhiMaxCut) )
1428 fhPtImbalanceDecayNeutral->Fill(ptDecay1,ratDecay1);
1429 if( (deltaPhiDecay2 > fDeltaPhiMinCut) && ( deltaPhiDecay2 < fDeltaPhiMaxCut) )
1430 fhPtImbalanceDecayNeutral->Fill(ptDecay2,ratDecay2);
1431 if(GetDebug() > 1)printf("AliAnaParticleHadronCorrelation::MakeNeutralCorrelation() - ratPhoton1 = %f, ratPhoton2 = %f \n", pt/ptDecay1, pt/ptDecay2);
1433 } //do decay-hadron correlation
1435 fhEtaNeutral->Fill(pt,eta);
1436 fhPhiNeutral->Fill(pt,phi);
1437 fhDeltaEtaNeutral->Fill(ptTrig,etaTrig-eta);
1438 fhDeltaPhiNeutral->Fill(ptTrig,deltaPhi);
1439 fhDeltaPhiDeltaEtaNeutral->Fill(deltaPhi,etaTrig-eta);
1441 //delta phi cut for correlation
1442 if( (deltaPhi > fDeltaPhiMinCut) && ( deltaPhi < fDeltaPhiMaxCut) )
1444 fhDeltaPhiNeutralPt->Fill(pt,deltaPhi);
1445 fhPtImbalanceNeutral->Fill(ptTrig,rat);
1446 fhPtHbpNeutral->Fill(ptTrig,cosi);
1450 fhDeltaPhiUeNeutralPt->Fill(pt,deltaPhi);
1451 fhPtImbalanceUeNeutral->Fill(ptTrig,rat);
1452 fhPtHbpUeNeutral->Fill(ptTrig,cosi);
1454 //several UE calculation
1456 if((deltaPhi<-fUeDeltaPhiMinCut) && (deltaPhi >-fUeDeltaPhiMaxCut))
1458 fhDeltaPhiUeLeftNeutral->Fill(pt,deltaPhi);
1459 fhPtImbalanceUeLeftNeutral->Fill(ptTrig,rat);
1460 fhPtHbpUeLeftNeutral->Fill(ptTrig,cosi);
1462 if((deltaPhi>fUeDeltaPhiMinCut) && (deltaPhi <fUeDeltaPhiMaxCut))
1464 fhDeltaPhiUeRightNeutral->Fill(pt,deltaPhi);
1465 fhPtImbalanceUeRightNeutral->Fill(ptTrig,rat);
1466 fhPtHbpUeRightNeutral->Fill(ptTrig,cosi);
1468 } //several UE calculation
1475 refpi0 = new TObjArray(0);
1476 refpi0->SetName(GetAODObjArrayName()+"Pi0s");
1477 refpi0->SetOwner(kFALSE);
1480 }//put references in trigger AOD
1483 printf("AliAnaParticleHadronCorrelation::MakeNeutralCorrelation() - Selected neutral for momentum imbalance: pt %2.2f, phi %2.2f, eta %2.2f \n",pt,phi,eta);
1490 //_________________________________________________________________________________________________________
1491 void AliAnaParticleHadronCorrelation::MakeMCChargedCorrelation(AliAODPWG4ParticleCorrelation *aodParticle)
1493 // Charged Hadron Correlation Analysis with MC information
1495 printf("AliAnaParticleHadronCorrelation::MakeMCChargedCorrelation() - Make trigger particle - charged hadron correlation in AOD MC level\n");
1497 AliStack * stack = 0x0 ;
1498 TParticle * primary = 0x0 ;
1499 TClonesArray * mcparticles0 = 0x0 ;
1500 TClonesArray * mcparticles = 0x0 ;
1501 AliAODMCParticle * aodprimary = 0x0 ;
1503 Double_t eprim = 0 ;
1504 Double_t ptprim = 0 ;
1505 Double_t phiprim = 0 ;
1506 Double_t etaprim = 0 ;
1507 Double_t pxprim = 0 ;
1508 Double_t pyprim = 0 ;
1509 Double_t pzprim = 0 ;
1511 Int_t iParticle = 0 ;
1512 Double_t charge = 0.;
1514 Double_t mcrat =-100 ;
1515 Double_t mcxE =-100 ;
1516 Double_t mccosi =-100 ;
1517 Double_t mcdeltaPhi = -100. ;
1519 //Track loop, select tracks with good pt, phi and fill AODs or histograms
1520 //Int_t currentIndex = -1 ;
1521 Double_t mcTrackPt = 0 ;
1522 Double_t mcTrackPhi = 0 ;
1523 Double_t mcTrackEta = 0 ;
1524 Double_t mcTrackPx = 0 ;
1525 Double_t mcTrackPy = 0 ;
1526 Double_t mcTrackPz = 0 ;
1528 if(GetReader()->ReadStack())
1530 nTracks = GetMCStack()->GetNtrack() ;
1534 nTracks = GetReader()->GetAODMCParticles()->GetEntriesFast() ;
1536 //Int_t trackIndex[nTracks];
1538 Int_t label= aodParticle->GetLabel();
1540 printf("AliAnaParticleHadronCorrelation::MakeMCChargedCorrelation *** bad label ***: label %d \n", label);
1544 if(GetReader()->ReadStack())
1546 stack = GetMCStack() ;
1548 printf(" AliAnaParticleHadronCorrelation::MakeMCChargedCorrelation- Stack not available, is the MC handler called? STOP\n");
1552 nTracks=stack->GetNprimary();
1553 if(label >= stack->GetNtrack())
1555 if(GetDebug() > 2) printf("AliAnaParticleHadronCorrelation::MakeMCChargedCorrelation *** large label ***: label %d, n tracks %d \n", label, stack->GetNtrack());
1559 primary = stack->Particle(label);
1562 printf("AliAnaParticleHadronCorrelation::MakeMCChargedCorrelation *** no primary ***: label %d \n", label);
1566 eprim = primary->Energy();
1567 ptprim = primary->Pt();
1568 phiprim = primary->Phi();
1569 etaprim = primary->Eta();
1570 pxprim = primary->Px();
1571 pyprim = primary->Py();
1572 pzprim = primary->Pz();
1576 for (iParticle = 0 ; iParticle < nTracks ; iParticle++)
1578 TParticle * particle = stack->Particle(iParticle);
1579 TLorentzVector momentum;
1580 //keep only final state particles
1581 if(particle->GetStatusCode()!=1) continue ;
1582 Int_t pdg = particle->GetPdgCode();
1583 charge = TDatabasePDG::Instance()->GetParticle(pdg)->Charge();
1584 particle->Momentum(momentum);
1586 //---------- Charged particles ----------------------
1589 //Particles in CTS acceptance
1590 Bool_t inCTS = GetFiducialCut()->IsInFiducialCut(momentum,"CTS");
1591 if(TMath::Abs(pdg) == 11 && stack->Particle(particle->GetFirstMother())->GetPdgCode()==22) continue ;
1594 mcTrackPt = particle->Pt();
1595 mcTrackPhi = particle->Phi();
1596 mcTrackEta = particle->Eta();
1597 mcTrackPx = particle->Px();
1598 mcTrackPy = particle->Py();
1599 mcTrackPz = particle->Pz();
1600 if(mcTrackPhi < 0) mcTrackPhi+=TMath::TwoPi();
1602 //Select only hadrons in pt range
1603 if(mcTrackPt < fMinAssocPt || mcTrackPt > fMaxAssocPt) continue ;
1605 //remove trigger itself for correlation when use charged triggers
1606 if(label==iParticle &&
1607 TMath::Abs(mcTrackPt -ptprim ) < 1e-6 &&
1608 TMath::Abs(mcTrackPhi-phiprim) < 1e-6 &&
1609 TMath::Abs(mcTrackEta-etaprim) < 1e-6)
1612 //jumped out this event if near side associated partile pt larger than trigger
1613 if( mcTrackPt > ptprim && TMath::Abs(mcTrackPhi-phiprim) < TMath::PiOver2())
1616 mcdeltaPhi= phiprim-mcTrackPhi;
1617 if(mcdeltaPhi <= -TMath::PiOver2()) mcdeltaPhi+=TMath::TwoPi();
1618 if(mcdeltaPhi > 3*TMath::PiOver2()) mcdeltaPhi-=TMath::TwoPi();
1620 mcrat = mcTrackPt/ptprim ;
1621 mcdeltaPhi= phiprim-mcTrackPhi;
1622 mcxE =-mcTrackPt/ptprim*TMath::Cos(mcdeltaPhi);// -(mcTrackPx*pxprim+mcTrackPy*pyprim)/(ptprim*ptprim);
1624 if(mcxE > 0 ) mccosi = TMath::Log(1./mcxE);
1626 // printf("rat = %f, xE = %f, cosi =%f \n", rat, xE, cosi);
1627 // printf("phi = %f \n", phi);
1629 //Selection within angular range
1630 if( mcdeltaPhi< -TMath::PiOver2()) mcdeltaPhi+=TMath::TwoPi();
1631 if( mcdeltaPhi>3*TMath::PiOver2()) mcdeltaPhi-=TMath::TwoPi();
1632 Double_t mcpout = mcTrackPt*TMath::Sin(mcdeltaPhi) ;
1634 printf("AliAnaParticleHadronCorrelation::MakeMCChargedCorrelation() - Charged hadron: track Pt %f, track Phi %f, phi trigger %f. Cuts: delta phi %2.2f < %2.2f < %2.2f, pT min %2.2f \n",
1635 mcTrackPt,mcTrackPhi, phiprim,fDeltaPhiMinCut, mcdeltaPhi, fDeltaPhiMaxCut, GetMinPt());
1637 fhMCEtaCharged->Fill(mcTrackPt,mcTrackEta);
1638 fhMCPhiCharged->Fill(mcTrackPt,mcTrackPhi);
1639 fhMCDeltaEtaCharged->Fill(ptprim,etaprim-mcTrackEta);
1640 fhMCDeltaPhiCharged->Fill(ptprim,mcdeltaPhi);
1641 fhMCPtAssocDeltaPhi->Fill(mcTrackPt, mcdeltaPhi);
1642 fhMCDeltaPhiDeltaEtaCharged->Fill(mcdeltaPhi,etaprim-mcTrackEta);
1644 //delta phi cut for correlation
1645 if( (mcdeltaPhi > fDeltaPhiMinCut) && ( mcdeltaPhi < fDeltaPhiMaxCut) ) {
1646 fhMCDeltaPhiChargedPt->Fill(mcTrackPt,mcdeltaPhi);
1647 fhMCPtImbalanceCharged->Fill(ptprim,mcxE);
1648 fhMCPtHbpCharged->Fill(ptprim,mccosi);
1649 fhMCPtTrigPout->Fill(ptprim, mcpout) ;
1650 }//delta phi cut for correlation
1651 } //tracks after cuts
1654 } //when the leading particles could trace back to MC
1656 else if(GetReader()->ReadAODMCParticles())
1658 //Get the list of MC particles
1659 mcparticles0 = GetReader()->GetAODMCParticles(0);
1660 if(!mcparticles0) return;
1661 if(label >=mcparticles0->GetEntriesFast())
1664 printf("AliAnaParticleHadronCorrelation::MakeMCChargedCorrelation *** large label ***: label %d, n tracks %d \n", label,mcparticles0->GetEntriesFast());
1668 aodprimary = (AliAODMCParticle*) mcparticles0->At(label);
1671 printf("AliAnaParticleHadronCorrelation::MakeMCChargedCorrelation *** no AOD primary ***: label %d \n", label);
1675 ptprim = aodprimary->Pt();
1676 phiprim = aodprimary->Phi();
1677 etaprim = aodprimary->Eta();
1678 pxprim = aodprimary->Px();
1679 pyprim = aodprimary->Py();
1680 pzprim = aodprimary->Pz();
1683 mcparticles= GetReader()->GetAODMCParticles();
1684 for (Int_t i=0; i<nTracks;i++)
1686 AliAODMCParticle *part = (AliAODMCParticle*) mcparticles->At(i);
1687 if (!part->IsPhysicalPrimary()) continue;
1688 Int_t pdg = part->GetPdgCode();
1689 charge = TDatabasePDG::Instance()->GetParticle(pdg)->Charge();
1690 TLorentzVector momentum(part->Px(),part->Py(),part->Pz(),part->E());
1693 if(part->Pt()> GetReader()->GetCTSPtMin())
1695 //Particles in CTS acceptance
1696 Bool_t inCTS = GetFiducialCut()->IsInFiducialCut(momentum,"CTS");
1697 Int_t indexmother=part->GetMother();
1700 Int_t mPdg = ((AliAODMCParticle*) mcparticles->At(indexmother)) ->GetPdgCode();
1701 if(TMath::Abs(pdg) == 11 && mPdg == 22) continue;
1706 mcTrackPt =part->Pt();
1707 mcTrackPhi =part->Phi();
1708 mcTrackEta =part->Eta();
1709 mcTrackPx =part->Px();
1710 mcTrackPy =part->Py();
1711 mcTrackPz =part->Pz();
1712 if(mcTrackPhi < 0) mcTrackPhi+=TMath::TwoPi();
1714 //Select only hadrons in pt range
1715 if(mcTrackPt < GetMinPt() || mcTrackPt > GetMaxPt()) continue ;
1717 //remove trigger itself for correlation when use charged triggers
1719 TMath::Abs(mcTrackPt -ptprim ) < 1e-6 &&
1720 TMath::Abs(mcTrackPhi-phiprim) < 1e-6 &&
1721 TMath::Abs(mcTrackEta-etaprim) < 1e-6) continue ;
1723 //jumped out this event if near side associated partile pt larger than trigger
1724 if( mcTrackPt> ptprim && TMath::Abs(mcTrackPhi-phiprim)<TMath::PiOver2())
1727 mcdeltaPhi= phiprim-mcTrackPhi;
1728 if(mcdeltaPhi <= -TMath::PiOver2()) mcdeltaPhi+=TMath::TwoPi();
1729 if(mcdeltaPhi > 3*TMath::PiOver2()) mcdeltaPhi-=TMath::TwoPi();
1731 mcrat = mcTrackPt/ptprim ;
1732 mcxE =-mcTrackPt/ptprim*TMath::Cos(mcdeltaPhi);// -(mcTrackPx*pxprim+mcTrackPy*pyprim)/(ptprim*ptprim);
1734 if(mcxE > 0 ) mccosi = TMath::Log(1./mcxE);
1736 //Selection within angular range
1737 if( mcdeltaPhi< -TMath::PiOver2()) mcdeltaPhi+=TMath::TwoPi();
1738 if( mcdeltaPhi>3*TMath::PiOver2()) mcdeltaPhi-=TMath::TwoPi();
1739 Double_t mcpout = mcTrackPt*TMath::Sin(mcdeltaPhi) ;
1741 printf("AliAnaParticleHadronCorrelation::MakeMCChargedCorrelation() - Charged hadron: track Pt %f, track Phi %f, phi trigger %f. Cuts: delta phi %2.2f < %2.2f < %2.2f, pT min %2.2f \n",
1742 mcTrackPt,mcTrackPhi, phiprim,fDeltaPhiMinCut, mcdeltaPhi, fDeltaPhiMaxCut, GetMinPt());
1746 fhMCEtaCharged ->Fill(mcTrackPt,mcTrackEta);
1747 fhMCPhiCharged ->Fill(mcTrackPt,mcTrackPhi);
1748 fhMCDeltaEtaCharged->Fill(ptprim,etaprim-mcTrackEta);
1749 fhMCDeltaPhiCharged->Fill(ptprim,mcdeltaPhi);
1750 fhMCPtAssocDeltaPhi->Fill(mcTrackPt, mcdeltaPhi);
1751 fhMCDeltaPhiDeltaEtaCharged->Fill(mcdeltaPhi,etaprim-mcTrackEta);
1753 //delta phi cut for correlation
1754 if( (mcdeltaPhi > fDeltaPhiMinCut) && ( mcdeltaPhi < fDeltaPhiMaxCut) ) {
1755 fhMCDeltaPhiChargedPt ->Fill(mcTrackPt,mcdeltaPhi);
1756 fhMCPtImbalanceCharged->Fill(ptprim,mcxE);
1757 fhMCPtHbpCharged ->Fill(ptprim,mccosi);
1758 fhMCPtTrigPout ->Fill(ptprim, mcpout) ;
1759 }//delta phi cut for correlation
1761 } //tracks after cuts
1763 } //with minimum pt cut
1764 } //only charged particles
1765 } //MC particle loop
1766 } //when the leading particles could trace back to MC
1770 //_____________________________________________________________________
1771 void AliAnaParticleHadronCorrelation::Print(const Option_t * opt) const
1774 //Print some relevant parameters set for the analysis
1778 printf("**** Print %s %s ****\n", GetName(), GetTitle() ) ;
1779 AliAnaCaloTrackCorrBaseClass::Print(" ");
1780 printf("Pt trigger > %3.2f\n", fMinTriggerPt) ;
1781 printf("Pt associated hadron < %3.2f\n", fMaxAssocPt) ;
1782 printf("Pt associated hadron > %3.2f\n", fMinAssocPt) ;
1783 printf("Phi trigger particle-Hadron < %3.2f\n", fDeltaPhiMaxCut) ;
1784 printf("Phi trigger particle-Hadron > %3.2f\n", fDeltaPhiMinCut) ;
1785 printf("Phi trigger particle-UeHadron < %3.2f\n", fUeDeltaPhiMaxCut) ;
1786 printf("Phi trigger particle-UeHadron > %3.2f\n", fUeDeltaPhiMinCut) ;
1787 printf("Isolated Trigger? %d\n" , fSelectIsolated) ;
1788 printf("Several UE? %d\n" , fMakeSeveralUE) ;
1789 printf("Name of AOD Pi0 Branch %s \n", fPi0AODBranchName.Data());
1790 printf("Do Decay-hadron correlation ? %d\n", fPi0Trigger) ;
1791 printf("Select absolute leading for cluster triggers ? %d\n", fMakeAbsoluteLeading) ;
1792 printf("Trigger pt bins %d\n", fNAssocPtBins) ;
1793 for (Int_t ibin = 0; ibin<fNAssocPtBins; ibin++) {
1794 printf("\t bin %d = [%2.1f,%2.1f]\n", ibin, fAssocPtBinLimit[ibin], fAssocPtBinLimit[ibin+1]) ;
1799 //____________________________________________________________
1800 void AliAnaParticleHadronCorrelation::SetNAssocPtBins(Int_t n)
1802 // Set number of bins
1813 printf("n = larger than 9 or too small, set to 9 \n");
1818 //______________________________________________________________________________
1819 void AliAnaParticleHadronCorrelation::SetAssocPtBinLimit(Int_t ibin, Float_t pt)
1821 // Set the list of limits for the trigger pt bins
1823 if(ibin <= fNAssocPtBins || ibin >= 0)
1825 fAssocPtBinLimit[ibin] = pt ;
1828 printf("AliAnaParticleHadronCorrelation::SetAssocPtBinLimit() - bin number too large %d > %d or small, nothing done\n", ibin, fNAssocPtBins) ;