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bdcfac30 | 1 | |
2 | /************************************************************************** | |
3 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * * | |
5 | * Author: The ALICE Off-line Project. * | |
6 | * Contributors are mentioned in the code where appropriate. * | |
7 | * * | |
8 | * Permission to use, copy, modify and distribute this software and its * | |
9 | * documentation strictly for non-commercial purposes is hereby granted * | |
10 | * without fee, provided that the above copyright notice appears in all * | |
11 | * copies and that both the copyright notice and this permission notice * | |
12 | * appear in the supporting documentation. The authors make no claims * | |
13 | * about the suitability of this software for any purpose. It is * | |
14 | * provided "as is" without express or implied warranty. * | |
15 | **************************************************************************/ | |
16 | /* $Id$ */ | |
17 | ||
18 | /* History of cvs commits: | |
19 | * | |
20 | * $Log$ | |
4b707925 | 21 | * Revision 1.2 2007/08/17 12:40:04 schutz |
22 | * New analysis classes by Gustavo Conesa | |
23 | * | |
bdcfac30 | 24 | * Revision 1.1.2.1 2007/07/26 10:32:09 schutz |
25 | * new analysis classes in the the new analysis framework | |
26 | * | |
27 | * | |
28 | */ | |
29 | ||
30 | //_________________________________________________________________________ | |
31 | // Class for reading data (Kinematics and ESDs) in order to do prompt gamma correlations | |
32 | // Class created from old AliPHOSGammaJet | |
33 | // (see AliRoot versions previous Release 4-09) | |
34 | // | |
35 | //*-- Author: Gustavo Conesa (LNF-INFN) | |
36 | ////////////////////////////////////////////////////////////////////////////// | |
37 | ||
38 | ||
39 | // --- ROOT system --- | |
3bb2c538 | 40 | #include <TFormula.h> |
bdcfac30 | 41 | #include <TParticle.h> |
3bb2c538 | 42 | |
bdcfac30 | 43 | //---- ANALYSIS system ---- |
44 | #include "AliGammaMCDataReader.h" | |
bdcfac30 | 45 | #include "AliESDEvent.h" |
46 | #include "AliESDVertex.h" | |
47 | #include "AliESDCaloCluster.h" | |
48 | #include "AliStack.h" | |
3bb2c538 | 49 | #include "AliLog.h" |
bdcfac30 | 50 | |
51 | ClassImp(AliGammaMCDataReader) | |
52 | ||
53 | //____________________________________________________________________________ | |
54 | AliGammaMCDataReader::AliGammaMCDataReader() : | |
4b707925 | 55 | AliGammaReader() |
bdcfac30 | 56 | { |
57 | //Default Ctor | |
58 | ||
59 | //Initialize parameters | |
60 | fDataType=kMCData; | |
bdcfac30 | 61 | |
62 | } | |
63 | ||
64 | //____________________________________________________________________________ | |
65 | AliGammaMCDataReader::AliGammaMCDataReader(const AliGammaMCDataReader & g) : | |
4b707925 | 66 | AliGammaReader(g) |
bdcfac30 | 67 | { |
68 | // cpy ctor | |
69 | } | |
70 | ||
71 | //_________________________________________________________________________ | |
72 | AliGammaMCDataReader & AliGammaMCDataReader::operator = (const AliGammaMCDataReader & source) | |
73 | { | |
74 | // assignment operator | |
75 | ||
76 | if(&source == this) return *this; | |
77 | ||
4b707925 | 78 | |
bdcfac30 | 79 | return *this; |
80 | ||
81 | } | |
82 | ||
83 | //____________________________________________________________________________ | |
84 | void AliGammaMCDataReader::CreateParticleList(TObject * data, TObject * kine, | |
85 | TClonesArray * plCTS, | |
86 | TClonesArray * plEMCAL, | |
4b707925 | 87 | TClonesArray * plPHOS, |
88 | TClonesArray * plPrimCTS, | |
89 | TClonesArray * plPrimEMCAL, | |
90 | TClonesArray * plPrimPHOS){ | |
bdcfac30 | 91 | |
92 | //Create a list of particles from the ESD. These particles have been measured | |
3bb2c538 | 93 | //by the Central Tracking system (TPC+ITS+...), PHOS and EMCAL |
94 | //Also create particle list with mothers. | |
bdcfac30 | 95 | |
96 | AliESDEvent* esd = (AliESDEvent*) data; | |
97 | AliStack* stack = (AliStack*) kine; | |
98 | ||
99 | Int_t npar = 0 ; | |
4b707925 | 100 | Double_t *pid = new Double_t[AliPID::kSPECIESN]; |
bdcfac30 | 101 | AliDebug(3,"Fill particle lists"); |
102 | ||
103 | //Get vertex for momentum calculation | |
104 | Double_t v[3] ; //vertex ; | |
105 | esd->GetVertex()->GetXYZ(v) ; | |
106 | ||
3bb2c538 | 107 | //########### CALORIMETERS ############## |
108 | Int_t nCaloCluster = esd->GetNumberOfCaloClusters() ; | |
bdcfac30 | 109 | Int_t indexPH = plPHOS->GetEntries() ; |
3bb2c538 | 110 | Int_t indexEM = plEMCAL->GetEntries() ; |
bdcfac30 | 111 | |
3bb2c538 | 112 | for (npar = 0; npar < nCaloCluster; npar++) {//////////////CaloCluster loop |
113 | AliESDCaloCluster * clus = esd->GetCaloCluster(npar) ; // retrieve cluster from esd | |
114 | Int_t type = clus->GetClusterType(); | |
115 | ||
116 | //########### PHOS ############## | |
117 | if(fSwitchOnPHOS && type == AliESDCaloCluster::kPHOSCluster){ | |
118 | AliDebug(4,Form("PHOS clusters: E %f, match %d", clus->E(),clus->GetTrackMatched())); | |
119 | ||
120 | if(clus->GetTrackMatched()==-1){ | |
121 | TLorentzVector momentum ; | |
122 | clus->GetMomentum(momentum, v); | |
123 | Double_t phi = momentum.Phi(); | |
124 | if(phi<0) phi+=TMath::TwoPi() ; | |
125 | if(momentum.Pt() > fNeutralPtCut && TMath::Abs(momentum.Eta()) < fPHOSEtaCut && | |
126 | phi > fPhiPHOSCut[0] && phi < fPhiPHOSCut[1] ) { | |
4b707925 | 127 | |
3bb2c538 | 128 | pid=clus->GetPid(); |
129 | Int_t pdg = 22; | |
4b707925 | 130 | |
3bb2c538 | 131 | if(IsPHOSPIDOn()){ |
132 | AliDebug(5,Form("E %1.2f; PID: ph %0.2f, pi0 %0.2f, el %0.2f, conv el %0.2f,pi %0.2f, k %0.2f, p %0.2f, k0 %0.2f, n %0.2f, mu %0.2f ", | |
133 | momentum.E(),pid[AliPID::kPhoton],pid[AliPID::kPi0],pid[AliPID::kElectron],pid[AliPID::kEleCon],pid[AliPID::kPion], | |
134 | pid[AliPID::kKaon],pid[AliPID::kProton], pid[AliPID::kKaon0],pid[AliPID::kNeutron], pid[AliPID::kMuon])); | |
135 | ||
136 | Float_t wPhoton = fPHOSPhotonWeight; | |
137 | Float_t wPi0 = fPHOSPi0Weight; | |
138 | ||
139 | if(fPHOSWeightFormula){ | |
140 | wPhoton = fPHOSPhotonWeightFormula->Eval(momentum.E()) ; | |
141 | wPi0 = fPHOSPi0WeightFormula->Eval(momentum.E()); | |
142 | } | |
143 | ||
144 | if(pid[AliPID::kPhoton] > wPhoton) | |
145 | pdg = kPhoton ; | |
146 | else if(pid[AliPID::kPi0] > wPi0) | |
147 | pdg = kPi0 ; | |
148 | else if(pid[AliPID::kElectron] > fPHOSElectronWeight) | |
149 | pdg = kElectron ; | |
150 | else if(pid[AliPID::kEleCon] > fPHOSElectronWeight) | |
151 | pdg = kEleCon ; | |
152 | else if(pid[AliPID::kPion]+pid[AliPID::kKaon]+pid[AliPID::kProton] > fPHOSChargeWeight) | |
153 | pdg = kChargedHadron ; | |
154 | else if(pid[AliPID::kKaon0]+pid[AliPID::kNeutron] > fPHOSNeutralWeight) | |
155 | pdg = kNeutralHadron ; | |
156 | ||
157 | else if(pid[AliPID::kElectron]+pid[AliPID::kEleCon]+pid[AliPID::kPion]+pid[AliPID::kKaon]+pid[AliPID::kProton] > | |
158 | pid[AliPID::kPhoton] + pid[AliPID::kPi0]+pid[AliPID::kKaon0]+pid[AliPID::kNeutron]) | |
159 | pdg = kChargedUnknown ; | |
160 | else | |
161 | pdg = kNeutralUnknown ; | |
162 | //neutral cluster, unidentifed. | |
4b707925 | 163 | } |
164 | ||
3bb2c538 | 165 | if(pdg != kElectron && pdg != kEleCon && pdg !=kChargedHadron && pdg !=kChargedUnknown ){//keep only neutral particles in the array |
166 | ||
167 | //############### | |
168 | //Check kinematics | |
169 | //############### | |
170 | Int_t label = clus->GetLabel(); | |
171 | TParticle * pmother = GetMotherParticle(label,stack, "PHOS",momentum); | |
172 | ||
173 | TParticle * particle = new TParticle(pdg, 1, -1, -1, -1, -1, | |
174 | momentum.Px(), momentum.Py(), momentum.Pz(), momentum.E(), v[0], v[1], v[2], 0); | |
175 | ||
176 | AliDebug(4,Form("PHOS added: pdg %d, pt %f, phi %f, eta %f", pdg, particle->Pt(),particle->Phi(),particle->Eta())); | |
177 | new((*plPHOS)[indexPH]) TParticle(*particle) ; | |
178 | new((*plPrimPHOS)[indexPH]) TParticle(*pmother) ; | |
179 | indexPH++; | |
180 | ||
181 | } | |
182 | else AliDebug(4,Form("PHOS charged cluster NOT added: pdg %d, pt %f, phi %f, eta %f\n", | |
183 | pdg, momentum.Pt(),momentum.Phi(),momentum.Eta())); | |
4b707925 | 184 | |
3bb2c538 | 185 | }//pt, eta, phi cut |
186 | else AliDebug(4,"Particle not added"); | |
187 | }//track-match? | |
188 | }//PHOS cluster | |
4b707925 | 189 | |
3bb2c538 | 190 | //################ EMCAL ############## |
191 | else if(fSwitchOnEMCAL && type == AliESDCaloCluster::kEMCALClusterv1){ | |
192 | AliDebug(4,Form("EMCAL clusters: E %f, match %d", clus->E(),clus->GetTrackMatched())); | |
193 | ||
194 | if(clus->GetTrackMatched()==-1 ){ | |
195 | TLorentzVector momentum ; | |
196 | clus->GetMomentum(momentum, v); | |
197 | Double_t phi = momentum.Phi(); | |
198 | if(phi<0) phi+=TMath::TwoPi() ; | |
199 | if(momentum.Pt() > fNeutralPtCut && TMath::Abs(momentum.Eta()) < fEMCALEtaCut && | |
200 | phi > fPhiEMCALCut[0] && phi < fPhiEMCALCut[1] ) { | |
4b707925 | 201 | |
3bb2c538 | 202 | pid=clus->GetPid(); |
203 | Int_t pdg = 22; | |
4b707925 | 204 | |
3bb2c538 | 205 | if(IsEMCALPIDOn()){ |
206 | AliDebug(5,Form("E %1.2f; PID: ph %0.2f, pi0 %0.2f, el %0.2f, conv el %0.2f,pi %0.2f, k %0.2f, p %0.2f, k0 %0.2f, n %0.2f, mu %0.2f ", | |
207 | momentum.E(),pid[AliPID::kPhoton],pid[AliPID::kPi0],pid[AliPID::kElectron],pid[AliPID::kEleCon],pid[AliPID::kPion], | |
208 | pid[AliPID::kKaon],pid[AliPID::kProton], pid[AliPID::kKaon0],pid[AliPID::kNeutron], pid[AliPID::kMuon])); | |
209 | ||
210 | if(pid[AliPID::kPhoton] > fEMCALPhotonWeight) | |
211 | pdg = kPhoton ; | |
212 | else if(pid[AliPID::kPi0] > fEMCALPi0Weight) | |
213 | pdg = kPi0 ; | |
214 | else if(pid[AliPID::kElectron] > fEMCALElectronWeight) | |
215 | pdg = kElectron ; | |
216 | else if(pid[AliPID::kEleCon] > fEMCALElectronWeight) | |
217 | pdg = kEleCon ; | |
218 | else if(pid[AliPID::kPion]+pid[AliPID::kKaon]+pid[AliPID::kProton] > fEMCALChargeWeight) | |
219 | pdg = kChargedHadron ; | |
220 | else if(pid[AliPID::kKaon0]+pid[AliPID::kNeutron] > fEMCALNeutralWeight) | |
221 | pdg = kNeutralHadron ; | |
222 | else if(pid[AliPID::kElectron]+pid[AliPID::kEleCon]+pid[AliPID::kPion]+pid[AliPID::kKaon]+pid[AliPID::kProton] > | |
223 | pid[AliPID::kPhoton] + pid[AliPID::kPi0]+pid[AliPID::kKaon0]+pid[AliPID::kNeutron]) | |
224 | pdg = kChargedUnknown ; | |
225 | else | |
226 | pdg = kNeutralUnknown ; | |
227 | } | |
228 | ||
229 | if(pdg != kElectron && pdg != kEleCon && pdg !=kChargedHadron && pdg !=kChargedUnknown){//keep only neutral particles in the array | |
230 | ||
231 | //############### | |
232 | //Check kinematics | |
233 | //############### | |
234 | Int_t label = clus->GetLabel(); | |
235 | TParticle * pmother = GetMotherParticle(label,stack, "EMCAL",momentum); | |
236 | ||
237 | TParticle * particle = new TParticle(pdg, 1, -1, -1, -1, -1, | |
238 | momentum.Px(), momentum.Py(), momentum.Pz(), momentum.E(), v[0], v[1], v[2], 0); | |
239 | AliDebug(4,Form("EMCAL cluster added: pdg %f, pt %f, phi %f, eta %f", pdg, particle->Pt(),particle->Phi(),particle->Eta())); | |
240 | ||
241 | new((*plEMCAL)[indexEM]) TParticle(*particle) ; | |
242 | new((*plPrimEMCAL)[indexEM]) TParticle(*pmother) ; | |
243 | indexEM++; | |
244 | } | |
245 | else AliDebug(4,Form("EMCAL charged cluster NOT added: pdg %d, pt %f, phi %f, eta %f", | |
246 | pdg, momentum.Pt(),momentum.Phi(),momentum.Eta())); | |
247 | ||
248 | }//pt, phi, eta cut | |
249 | else AliDebug(4,"Particle not added"); | |
250 | }//track-matched | |
251 | }//EMCAL cluster | |
4b707925 | 252 | |
bdcfac30 | 253 | }//cluster loop |
254 | ||
3bb2c538 | 255 | |
256 | ||
bdcfac30 | 257 | //########### CTS (TPC+ITS) ##################### |
3bb2c538 | 258 | Int_t nTracks = esd->GetNumberOfTracks() ; |
bdcfac30 | 259 | Int_t indexCh = plCTS->GetEntries() ; |
4b707925 | 260 | |
3bb2c538 | 261 | if(fSwitchOnCTS){ |
262 | AliDebug(3,Form("Number of tracks %d",nTracks)); | |
bdcfac30 | 263 | |
3bb2c538 | 264 | for (npar = 0; npar < nTracks; npar++) {////////////// track loop |
265 | AliESDtrack * track = esd->GetTrack(npar) ; // retrieve track from esd | |
bdcfac30 | 266 | |
3bb2c538 | 267 | //We want tracks fitted in the detectors: |
268 | ULong_t status=AliESDtrack::kTPCrefit; | |
269 | status|=AliESDtrack::kITSrefit; | |
270 | ||
271 | //We want tracks whose PID bit is set: | |
272 | // ULong_t status =AliESDtrack::kITSpid; | |
273 | // status|=AliESDtrack::kTPCpid; | |
bdcfac30 | 274 | |
3bb2c538 | 275 | if ( (track->GetStatus() & status) == status) {//Check if the bits we want are set |
276 | // Do something with the tracks which were successfully | |
277 | // re-fitted | |
278 | Double_t en = 0; //track ->GetTPCsignal() ; | |
279 | Double_t mom[3]; | |
280 | track->GetPxPyPz(mom) ; | |
281 | Double_t px = mom[0]; | |
282 | Double_t py = mom[1]; | |
283 | Double_t pz = mom[2]; //Check with TPC people if this is correct. | |
284 | Int_t pdg = 11; //Give any charged PDG code, in this case electron. | |
285 | //I just want to tag the particle as charged | |
4b707925 | 286 | |
4b707925 | 287 | //Check kinematics |
3bb2c538 | 288 | Int_t label = TMath::Abs(track->GetLabel()); |
289 | TParticle * pmother = new TParticle(); | |
290 | pmother = stack->Particle(label); | |
4b707925 | 291 | |
292 | TParticle * particle = new TParticle(pdg, 1, -1, -1, -1, -1, | |
3bb2c538 | 293 | px, py, pz, en, v[0], v[1], v[2], 0); |
4b707925 | 294 | |
3bb2c538 | 295 | if(particle->Pt() > fChargedPtCut && TMath::Abs(particle->Eta())<fCTSEtaCut){ |
296 | new((*plCTS)[indexCh]) TParticle(*particle) ; | |
297 | new((*plPrimCTS)[indexCh]) TParticle(*pmother) ; | |
298 | indexCh++; | |
299 | ||
300 | }//kinematic selection | |
301 | }//select track from refit | |
302 | }//track loop | |
303 | }//CTS | |
bdcfac30 | 304 | |
3bb2c538 | 305 | AliDebug(3,Form("Particle lists filled, tracks %d , clusters: EMCAL %d, PHOS %d", indexCh,indexEM,indexPH)); |
306 | ||
307 | } | |
4b707925 | 308 | |
309 | TParticle * AliGammaMCDataReader:: GetMotherParticle(Int_t label, AliStack *stack, TString calo, TLorentzVector momentum) | |
bdcfac30 | 310 | { |
4b707925 | 311 | //Gets the primary particle and do some checks: |
312 | //Check if primary is inside calorimeter and look the mother outsie | |
313 | //Check if mother is a decay photon, in which case check if decay was overlapped | |
314 | ||
315 | Float_t minangle = 0; | |
316 | Float_t ipdist = 0; | |
317 | TParticle * pmother = new TParticle(); | |
bdcfac30 | 318 | |
4b707925 | 319 | if(calo == "PHOS"){ |
320 | ipdist= fPHOSIPDistance; | |
321 | minangle = fPHOSMinAngle; | |
322 | } | |
323 | else if (calo == "EMCAL"){ | |
324 | ipdist = fEMCALIPDistance; | |
325 | minangle = fEMCALMinAngle; | |
326 | } | |
bdcfac30 | 327 | |
bdcfac30 | 328 | |
4b707925 | 329 | if(label>=0){ |
330 | pmother = stack->Particle(label); | |
331 | Int_t mostatus = pmother->GetStatusCode(); | |
332 | Int_t mopdg = TMath::Abs(pmother->GetPdgCode()); | |
333 | ||
334 | //Check if mother is a conversion inside the calorimeter | |
335 | //In such case, return the mother before the calorimeter. | |
336 | //First approximation. | |
337 | Float_t vy = TMath::Abs(pmother->Vy()) ; | |
bdcfac30 | 338 | |
4b707925 | 339 | if( mostatus == 0 && vy >= ipdist){ |
bdcfac30 | 340 | |
4b707925 | 341 | //cout<<"Calo: "<<calo<<" vy "<<vy<<" E clus "<<momentum.E()<<" Emother "<<pmother->Energy()<<" " |
342 | // <<pmother->GetName()<<endl; | |
343 | ||
344 | while( vy >= ipdist){//inside calorimeter | |
345 | AliDebug(4,Form("Conversion inside calorimeter, mother vertex %0.2f, IP distance %0.2f", vy, ipdist)); | |
346 | pmother = stack->Particle(pmother->GetMother(0)); | |
347 | vy = TMath::Abs(pmother->Vy()) ; | |
348 | //cout<<" label "<<label<<" Mother: "<<pmother->GetName()<<" E "<<pmother->Energy()<<" Status "<<pmother->GetStatusCode()<<" and vertex "<<vy<<endl; | |
349 | mostatus = pmother->GetStatusCode(); | |
350 | mopdg = TMath::Abs(pmother->GetPdgCode()); | |
351 | }//while vertex is inside calorimeter | |
352 | //cout<<"Calo: "<<calo<<" final vy "<<vy<<" E clus "<<momentum.E()<<" Emother "<<pmother->Energy()<<" " | |
353 | // <<pmother->GetName()<<endl; | |
354 | }//check status and vertex | |
355 | ||
356 | AliDebug(4,Form("%s, ESD E %2.2f, PID %d, mother: E %2.2f, label %d, status %d, vertex %3.2f, mother 2 %d, grandmother %d \n", | |
357 | calo.Data(),momentum.E(),pmother->Energy(), label, pmother->GetPdgCode(), | |
358 | pmother->GetStatusCode(), vy, pmother->GetMother(0), stack->GetPrimary(label))); | |
359 | ||
360 | //Check Decay photons | |
361 | if(mopdg == 22){ | |
362 | ||
363 | //his mother was a pi0? | |
364 | TParticle * pmotherpi0 = stack->Particle(pmother->GetMother(0)); | |
365 | if( pmotherpi0->GetPdgCode() == 111){ | |
366 | ||
367 | AliDebug(4,Form(" %s: E cluster %2.2f, E gamma %2.2f, Mother Pi0, E %0.2f, status %d, daughters %d\n", | |
368 | calo.Data(), momentum.E(),pmother->Energy(),pmotherpi0->Energy(), | |
369 | pmotherpi0->GetStatusCode(), pmotherpi0->GetNDaughters())); | |
370 | ||
371 | if(pmotherpi0->GetNDaughters() == 1) mostatus = 2 ; //signal that this photon can only be decay, not overlapped. | |
372 | else if(pmotherpi0->GetNDaughters() == 2){ | |
373 | ||
374 | TParticle * pd1 = stack->Particle(pmotherpi0->GetDaughter(0)); | |
375 | TParticle * pd2 = stack->Particle(pmotherpi0->GetDaughter(1)); | |
376 | //if(pmotherpi0->Energy()> 10 ){ | |
377 | // cout<<"Two "<<calo<<" daugthers, pi0 label "<<pmother->GetMother(0)<<" E :"<<pmotherpi0->Energy()<<endl; | |
378 | // cout<<" 1) label "<<pmotherpi0->GetDaughter(0)<<" pdg "<<pd1->GetPdgCode()<<" E "<<pd1->Energy() | |
379 | // <<" phi "<<pd1->Phi()*TMath::RadToDeg()<<" eta "<<pd1->Eta() | |
380 | // <<" mother label "<<pd1->GetMother(0)<<" n daug "<<pd1->GetNDaughters() <<endl; | |
381 | // cout<<" 2) label "<<pmotherpi0->GetDaughter(1)<<" pdg "<<pd2->GetPdgCode()<<" E "<<pd2->Energy() | |
382 | // <<" phi "<<pd2->Phi()*TMath::RadToDeg()<<" eta "<<pd2->Eta()<<" mother label " | |
383 | // <<pd2->GetMother(0)<<" n daug "<<pd2->GetNDaughters() <<endl; | |
384 | //} | |
385 | if(pd1->GetPdgCode() == 22 && pd2->GetPdgCode() == 22){ | |
386 | TLorentzVector lv1 , lv2 ; | |
387 | pd1->Momentum(lv1); | |
388 | pd2->Momentum(lv2); | |
389 | Double_t angle = lv1.Angle(lv2.Vect()); | |
390 | // if(pmotherpi0->Energy()> 10 ) | |
391 | // cout<<"angle*ipdist "<<angle*ipdist<<" mindist "<< minangle <<endl; | |
392 | if (angle < minangle){ | |
393 | //There is overlapping, pass the pi0 as mother | |
394 | ||
395 | AliDebug(4,Form(">>>> %s cluster with E %2.2f is a overlapped pi0, E %2.2f, angle %2.4f < anglemin %2.4f\n", | |
396 | calo.Data(), momentum.E(), pmotherpi0->Energy(), angle, minangle)); | |
397 | ||
398 | pmother = pmotherpi0 ; | |
399 | ||
400 | } | |
401 | else mostatus = 2 ; // gamma decay not overlapped | |
402 | }// daughters are photons | |
403 | else mostatus = 2; // daughters are e-gamma or e-e, no overlapped, or charged cluster | |
404 | }//2 daughters | |
405 | else AliDebug(4,Form("pi0 has %d daughters",pmotherpi0->GetNDaughters())); | |
406 | }//pi0 decay photon? | |
407 | }//photon | |
408 | ||
409 | pmother->SetStatusCode(mostatus); // if status = 2, decay photon. | |
410 | ||
411 | }//label >=0 | |
412 | else AliInfo(Form("Negative Kinematic label of PHOS cluster: %d",label)); | |
413 | ||
414 | return pmother ; | |
bdcfac30 | 415 | |
416 | } |