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a6c5a2e9 | 1 | /************************************************************************** |
2 | * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | #include <TMath.h> | |
686e4710 | 17 | #include <TRandom.h> |
b176db3b | 18 | #include <TProfile.h> |
19 | #include <TClonesArray.h> | |
20 | #include <TH1F.h> | |
21 | #include <TH2F.h> | |
22 | #include <TF1.h> | |
ee9c9d9b | 23 | #include <TParticle.h> |
24 | #include "AliStack.h" | |
a6c5a2e9 | 25 | #include "AliAODEvent.h" |
b176db3b | 26 | #include "AliAODMCHeader.h" |
7f51a627 | 27 | #include "AliGenEventHeader.h" |
25504150 | 28 | #include "AliAODMCParticle.h" |
b176db3b | 29 | #include "AliAODRecoDecayHF.h" |
a6c5a2e9 | 30 | #include "AliVertexingHFUtils.h" |
31 | ||
d947ea9c | 32 | /* $Id$ */ |
a6c5a2e9 | 33 | |
34 | /////////////////////////////////////////////////////////////////// | |
35 | // // | |
36 | // Class with functions useful for different D2H analyses // | |
37 | // - event plane resolution // | |
38 | // - <pt> calculation with side band subtraction // | |
25504150 | 39 | // - tracklet multiplicity calculation // |
a6c5a2e9 | 40 | // Origin: F.Prino, Torino, prino@to.infn.it // |
41 | // // | |
42 | /////////////////////////////////////////////////////////////////// | |
43 | ||
44 | ClassImp(AliVertexingHFUtils) | |
45 | ||
46 | //______________________________________________________________________ | |
47 | AliVertexingHFUtils::AliVertexingHFUtils():TObject(), | |
48 | fK(1), | |
49 | fSubRes(1.), | |
50 | fMinEtaForTracklets(-1.), | |
51 | fMaxEtaForTracklets(1.) | |
52 | { | |
53 | // Default contructor | |
54 | } | |
55 | ||
56 | ||
57 | //______________________________________________________________________ | |
58 | AliVertexingHFUtils::AliVertexingHFUtils(Int_t k): | |
59 | TObject(), | |
60 | fK(k), | |
61 | fSubRes(1.), | |
62 | fMinEtaForTracklets(-1.), | |
63 | fMaxEtaForTracklets(1.) | |
64 | { | |
65 | // Standard constructor | |
66 | } | |
67 | ||
68 | ||
5d1396f9 | 69 | //______________________________________________________________________ |
70 | void AliVertexingHFUtils::ComputeSignificance(Double_t signal, Double_t errsignal, Double_t background, Double_t errbackground, Double_t &significance,Double_t &errsignificance){ | |
71 | // calculate significance from S, B and errors | |
72 | ||
73 | ||
74 | Double_t errSigSq=errsignal*errsignal; | |
75 | Double_t errBkgSq=errbackground*errbackground; | |
76 | Double_t sigPlusBkg=signal+background; | |
77 | if(sigPlusBkg>0. && signal>0.){ | |
78 | significance = signal/TMath::Sqrt(signal+background); | |
79 | errsignificance = significance*TMath::Sqrt((errSigSq+errBkgSq)/(4.*sigPlusBkg*sigPlusBkg)+(background/sigPlusBkg)*errSigSq/signal/signal); | |
80 | }else{ | |
81 | significance=0.; | |
82 | errsignificance=0.; | |
83 | } | |
84 | return; | |
85 | ||
86 | } | |
a6c5a2e9 | 87 | //______________________________________________________________________ |
88 | Double_t AliVertexingHFUtils::Pol(Double_t x, Int_t k){ | |
89 | // compute chi from polynomial approximation | |
90 | Double_t c[5]; | |
91 | if(k==1){ | |
92 | c[0]=0.626657; c[1]=0.; c[2]=-0.09694; c[3]=0.02754; c[4]=-0.002283; | |
93 | } | |
94 | else if(k==2){ | |
95 | c[0]=0.; c[1]=0.25; c[2]=-0.011414; c[3]=-0.034726; c[4]=0.006815; | |
96 | } | |
97 | else return -1; | |
98 | return c[0]*x+c[1]*x*x+c[2]*x*x*x+c[3]*x*x*x*x+c[4]*x*x*x*x*x; | |
99 | } | |
100 | ||
101 | //______________________________________________________________________ | |
102 | Double_t AliVertexingHFUtils:: ResolK1(Double_t x){ | |
103 | return TMath::Sqrt(TMath::Pi()/8)*x*TMath::Exp(-x*x/4)*(TMath::BesselI0(x*x/4)+TMath::BesselI1(x*x/4)); | |
104 | } | |
105 | ||
106 | ||
107 | //______________________________________________________________________ | |
108 | Double_t AliVertexingHFUtils::FindChi(Double_t res, Int_t k){ | |
109 | // compute chi variable (=v2*sqrt(N)) from external values | |
110 | ||
111 | Double_t x1=0; | |
112 | Double_t x2=15; | |
113 | Double_t y1,y2; | |
114 | if(k==1){ | |
115 | y1=ResolK1(x1)-res; | |
116 | y2=ResolK1(x2)-res; | |
117 | } | |
118 | else if(k==2){ | |
119 | y1=Pol(x1,2)-res; | |
120 | y2=Pol(x2,2)-res; | |
121 | } | |
122 | else return -1; | |
123 | ||
124 | if(y1*y2>0) return -1; | |
125 | if(y1==0) return y1; | |
126 | if(y2==0) return y2; | |
127 | Double_t xmed,ymed; | |
128 | Int_t jiter=0; | |
129 | while((x2-x1)>0.0001){ | |
130 | xmed=0.5*(x1+x2); | |
131 | if(k==1){ | |
132 | y1=ResolK1(x1)-res; | |
133 | y2=ResolK1(x2)-res; | |
134 | ymed=ResolK1(xmed)-res; | |
135 | } | |
136 | else if(k==2){ | |
137 | y1=Pol(x1,2)-res; | |
138 | y2=Pol(x2,2)-res; | |
139 | ymed=Pol(xmed,2)-res; | |
140 | } | |
141 | else return -1; | |
142 | if((y1*ymed)<0) x2=xmed; | |
143 | if((y2*ymed)<0)x1=xmed; | |
144 | if(ymed==0) return xmed; | |
145 | jiter++; | |
146 | } | |
147 | return 0.5*(x1+x2); | |
148 | } | |
149 | ||
150 | //______________________________________________________________________ | |
151 | Double_t AliVertexingHFUtils::GetFullEvResol(Double_t resSub, Int_t k){ | |
152 | // computes event plane resolution starting from sub event resolution | |
153 | Double_t chisub=FindChi(resSub,k); | |
154 | Double_t chifull=chisub*TMath::Sqrt(2); | |
155 | if(k==1) return ResolK1(chifull); | |
156 | else if(k==2) return Pol(chifull,2); | |
157 | else{ | |
158 | printf("k should be <=2\n"); | |
159 | return 1.; | |
160 | } | |
161 | } | |
162 | ||
163 | //______________________________________________________________________ | |
164 | Double_t AliVertexingHFUtils::GetFullEvResol(const TH1F* hSubEvCorr, Int_t k){ | |
165 | // computes event plane resolution starting from sub event correlation histogram | |
166 | if(!hSubEvCorr) return 1.; | |
167 | Double_t resSub=GetSubEvResol(hSubEvCorr); | |
168 | return GetFullEvResol(resSub,k); | |
169 | } | |
170 | //______________________________________________________________________ | |
171 | Double_t AliVertexingHFUtils::GetFullEvResolLowLim(const TH1F* hSubEvCorr, Int_t k){ | |
172 | // computes low limit event plane resolution starting from sub event correlation histogram | |
173 | if(!hSubEvCorr) return 1.; | |
174 | Double_t resSub=GetSubEvResolLowLim(hSubEvCorr); | |
175 | printf("%f\n",resSub); | |
176 | return GetFullEvResol(resSub,k); | |
177 | } | |
178 | //______________________________________________________________________ | |
179 | Double_t AliVertexingHFUtils::GetFullEvResolHighLim(const TH1F* hSubEvCorr, Int_t k){ | |
180 | // computes high limit event plane resolution starting from sub event correlation histogram | |
181 | if(!hSubEvCorr) return 1.; | |
182 | Double_t resSub=GetSubEvResolHighLim(hSubEvCorr); | |
183 | printf("%f\n",resSub); | |
184 | return GetFullEvResol(resSub,k); | |
185 | } | |
186 | //______________________________________________________________________ | |
187 | Int_t AliVertexingHFUtils::GetNumberOfTrackletsInEtaRange(AliAODEvent* ev, Double_t mineta, Double_t maxeta){ | |
188 | // counts tracklets in given eta range | |
189 | AliAODTracklets* tracklets=ev->GetTracklets(); | |
190 | Int_t nTr=tracklets->GetNumberOfTracklets(); | |
191 | Int_t count=0; | |
192 | for(Int_t iTr=0; iTr<nTr; iTr++){ | |
193 | Double_t theta=tracklets->GetTheta(iTr); | |
194 | Double_t eta=-TMath::Log(TMath::Tan(theta/2.)); | |
195 | if(eta>mineta && eta<maxeta) count++; | |
196 | } | |
197 | return count; | |
198 | } | |
86d84fa4 | 199 | //______________________________________________________________________ |
25504150 | 200 | Int_t AliVertexingHFUtils::GetGeneratedMultiplicityInEtaRange(TClonesArray* arrayMC, Double_t mineta, Double_t maxeta){ |
201 | // counts generated particles in fgiven eta range | |
202 | ||
203 | Int_t nChargedMC=0; | |
204 | for(Int_t i=0;i<arrayMC->GetEntriesFast();i++){ | |
205 | AliAODMCParticle *part=(AliAODMCParticle*)arrayMC->UncheckedAt(i); | |
206 | Int_t charge = part->Charge(); | |
207 | Double_t eta = part->Eta(); | |
208 | if(charge!=0 && eta>mineta && eta<maxeta) nChargedMC++; | |
209 | } | |
210 | return nChargedMC; | |
211 | } | |
212 | //______________________________________________________________________ | |
213 | Int_t AliVertexingHFUtils::GetGeneratedPrimariesInEtaRange(TClonesArray* arrayMC, Double_t mineta, Double_t maxeta){ | |
214 | // counts generated primary particles in given eta range | |
215 | ||
216 | Int_t nChargedMC=0; | |
217 | for(Int_t i=0;i<arrayMC->GetEntriesFast();i++){ | |
218 | AliAODMCParticle *part=(AliAODMCParticle*)arrayMC->UncheckedAt(i); | |
219 | Int_t charge = part->Charge(); | |
220 | Double_t eta = part->Eta(); | |
221 | if(charge!=0 && eta>mineta && eta<maxeta){ | |
222 | if(part->IsPrimary())nChargedMC++; | |
223 | } | |
224 | } | |
225 | return nChargedMC; | |
226 | } | |
227 | //______________________________________________________________________ | |
228 | Int_t AliVertexingHFUtils::GetGeneratedPhysicalPrimariesInEtaRange(TClonesArray* arrayMC, Double_t mineta, Double_t maxeta){ | |
229 | // counts generated primary particles in given eta range | |
230 | ||
231 | Int_t nChargedMC=0; | |
232 | for(Int_t i=0;i<arrayMC->GetEntriesFast();i++){ | |
233 | AliAODMCParticle *part=(AliAODMCParticle*)arrayMC->UncheckedAt(i); | |
234 | Int_t charge = part->Charge(); | |
235 | Double_t eta = part->Eta(); | |
236 | if(charge!=0 && eta>mineta && eta<maxeta){ | |
237 | if(part->IsPhysicalPrimary())nChargedMC++; | |
238 | } | |
239 | } | |
240 | return nChargedMC; | |
241 | } | |
242 | //______________________________________________________________________ | |
19df7ca5 | 243 | void AliVertexingHFUtils::AveragePt(Float_t& averagePt, Float_t& errorPt,Float_t ptmin,Float_t ptmax, TH2F* hMassD, Float_t massFromFit, Float_t sigmaFromFit, TF1* funcB2, Float_t sigmaRangeForSig,Float_t sigmaRangeForBkg, Float_t minMass, Float_t maxMass, Int_t rebin){ |
86d84fa4 | 244 | |
245 | // Compute <pt> from 2D histogram M vs pt | |
246 | ||
247 | //Make 2D histos in the desired pt range | |
248 | Int_t start=hMassD->FindBin(ptmin); | |
249 | Int_t end=hMassD->FindBin(ptmax)-1; | |
250 | const Int_t nx=end-start; | |
251 | TH2F *hMassDpt=new TH2F("hptmass","hptmass",nx,ptmin,ptmax,hMassD->GetNbinsY(),hMassD->GetYaxis()->GetBinLowEdge(1),hMassD->GetYaxis()->GetBinLowEdge(hMassD->GetNbinsY())+hMassD->GetYaxis()->GetBinWidth(hMassD->GetNbinsY())); | |
252 | for(Int_t ix=start;ix<end;ix++){ | |
253 | for(Int_t iy=1;iy<=hMassD->GetNbinsY();iy++){ | |
254 | hMassDpt->SetBinContent(ix-start+1,iy,hMassD->GetBinContent(ix,iy)); | |
255 | hMassDpt->SetBinError(ix-start+1,iy,hMassD->GetBinError(ix,iy)); | |
256 | } | |
257 | } | |
258 | ||
259 | Double_t minMassSig=massFromFit-sigmaRangeForSig*sigmaFromFit; | |
260 | Double_t maxMassSig=massFromFit+sigmaRangeForSig*sigmaFromFit; | |
261 | Int_t minBinSig=hMassD->GetYaxis()->FindBin(minMassSig); | |
262 | Int_t maxBinSig=hMassD->GetYaxis()->FindBin(maxMassSig); | |
263 | Double_t minMassSigBin=hMassD->GetYaxis()->GetBinLowEdge(minBinSig); | |
264 | Double_t maxMassSigBin=hMassD->GetYaxis()->GetBinLowEdge(maxBinSig)+hMassD->GetYaxis()->GetBinWidth(maxBinSig); | |
265 | // printf("Signal Fit Limits = %f %f\n",minMassSigBin,maxMassSigBin); | |
266 | ||
267 | Double_t maxMassBkgLow=massFromFit-sigmaRangeForBkg*sigmaFromFit; | |
19df7ca5 | 268 | Int_t minBinBkgLow=TMath::Max(hMassD->GetYaxis()->FindBin(minMass),2); |
86d84fa4 | 269 | Int_t maxBinBkgLow=hMassD->GetYaxis()->FindBin(maxMassBkgLow); |
270 | Double_t minMassBkgLowBin=hMassD->GetYaxis()->GetBinLowEdge(minBinBkgLow); | |
271 | Double_t maxMassBkgLowBin=hMassD->GetYaxis()->GetBinLowEdge(maxBinBkgLow)+hMassD->GetYaxis()->GetBinWidth(maxBinBkgLow); | |
272 | Double_t minMassBkgHi=massFromFit+sigmaRangeForBkg*sigmaFromFit; | |
273 | Int_t minBinBkgHi=hMassD->GetYaxis()->FindBin(minMassBkgHi); | |
19df7ca5 | 274 | Int_t maxBinBkgHi=TMath::Min(hMassD->GetYaxis()->FindBin(maxMass),hMassD->GetNbinsY()-1); |
86d84fa4 | 275 | Double_t minMassBkgHiBin=hMassD->GetYaxis()->GetBinLowEdge(minBinBkgHi); |
276 | Double_t maxMassBkgHiBin=hMassD->GetYaxis()->GetBinLowEdge(maxBinBkgHi)+hMassD->GetYaxis()->GetBinWidth(maxBinBkgHi); | |
277 | // printf("BKG Fit Limits = %f %f && %f %f\n",minMassBkgLowBin,maxMassBkgLowBin,minMassBkgHiBin,maxMassBkgHiBin); | |
278 | ||
279 | Double_t bkgSig=funcB2->Integral(minMassSigBin,maxMassSigBin); | |
280 | Double_t bkgLow=funcB2->Integral(minMassBkgLowBin,maxMassBkgLowBin); | |
281 | Double_t bkgHi=funcB2->Integral(minMassBkgHiBin,maxMassBkgHiBin); | |
282 | // printf("Background integrals = %f %f %f\n",bkgLow,bkgSig,bkgHi); | |
283 | ||
284 | TH1F* hMptBkgLo=(TH1F*)hMassDpt->ProjectionX("hPtBkgLoBin",minBinBkgLow,maxBinBkgLow); | |
285 | TH1F* hMptBkgHi=(TH1F*)hMassDpt->ProjectionX("hPtBkgHiBin",minBinBkgHi,maxBinBkgHi); | |
286 | TH1F* hMptSigReg=(TH1F*)hMassDpt->ProjectionX("hCPtBkgSigBin",minBinSig,maxBinSig); | |
287 | ||
288 | hMptBkgLo->Rebin(rebin); | |
289 | hMptBkgHi->Rebin(rebin); | |
290 | hMptSigReg->Rebin(rebin); | |
291 | ||
292 | hMptBkgLo->Sumw2(); | |
293 | hMptBkgHi->Sumw2(); | |
294 | TH1F* hMptBkgLoScal=(TH1F*)hMptBkgLo->Clone("hPtBkgLoScalBin"); | |
295 | hMptBkgLoScal->Scale(bkgSig/bkgLow); | |
296 | TH1F* hMptBkgHiScal=(TH1F*)hMptBkgHi->Clone("hPtBkgHiScalBin"); | |
297 | hMptBkgHiScal->Scale(bkgSig/bkgHi); | |
298 | ||
299 | TH1F* hMptBkgAver=0x0; | |
300 | hMptBkgAver=(TH1F*)hMptBkgLoScal->Clone("hPtBkgAverBin"); | |
301 | hMptBkgAver->Add(hMptBkgHiScal); | |
302 | hMptBkgAver->Scale(0.5); | |
303 | TH1F* hMptSig=(TH1F*)hMptSigReg->Clone("hCPtSigBin"); | |
304 | hMptSig->Add(hMptBkgAver,-1.); | |
305 | ||
306 | averagePt = hMptSig->GetMean(); | |
307 | errorPt = hMptSig->GetMeanError(); | |
308 | ||
309 | delete hMptBkgLo; | |
310 | delete hMptBkgHi; | |
311 | delete hMptSigReg; | |
312 | delete hMptBkgLoScal; | |
313 | delete hMptBkgHiScal; | |
314 | delete hMptBkgAver; | |
315 | delete hMassDpt; | |
316 | delete hMptSig; | |
317 | ||
15917f37 | 318 | } |
319 | //____________________________________________________________________________ | |
e6eaae4c | 320 | Bool_t AliVertexingHFUtils::CheckT0TriggerFired(AliAODEvent* aodEv){ |
321 | // check if T0VTX trigger was fired, based on a workaround suggested by Alla | |
322 | const Double32_t *mean = aodEv->GetT0TOF(); | |
94d7319f | 323 | if(mean && mean[0]<9999.) return kTRUE; |
e6eaae4c | 324 | else return kFALSE; |
325 | } | |
326 | //____________________________________________________________________________ | |
15917f37 | 327 | Double_t AliVertexingHFUtils::GetTrueImpactParameterDzero(AliAODMCHeader *mcHeader, TClonesArray* arrayMC, AliAODMCParticle *partD) { |
328 | // true impact parameter calculation for Dzero | |
329 | ||
330 | if(!partD || !arrayMC || !mcHeader) return 99999.; | |
331 | Int_t code=partD->GetPdgCode(); | |
332 | if(TMath::Abs(code)!=421) return 99999.; | |
333 | ||
334 | Double_t vtxTrue[3]; | |
335 | mcHeader->GetVertex(vtxTrue); | |
336 | Double_t origD[3]; | |
337 | partD->XvYvZv(origD); | |
338 | Short_t charge=partD->Charge(); | |
339 | Double_t pXdauTrue[2],pYdauTrue[2],pZdauTrue[2]; | |
340 | for(Int_t iDau=0; iDau<2; iDau++){ | |
341 | pXdauTrue[iDau]=0.; | |
342 | pYdauTrue[iDau]=0.; | |
343 | pZdauTrue[iDau]=0.; | |
344 | } | |
345 | ||
346 | Int_t nDau=partD->GetNDaughters(); | |
347 | Int_t labelFirstDau = partD->GetDaughter(0); | |
348 | if(nDau==2){ | |
349 | for(Int_t iDau=0; iDau<2; iDau++){ | |
350 | Int_t ind = labelFirstDau+iDau; | |
351 | AliAODMCParticle* part = dynamic_cast<AliAODMCParticle*>(arrayMC->At(ind)); | |
352 | if(!part){ | |
353 | printf("Daughter particle not found in MC array"); | |
354 | return 99999.; | |
355 | } | |
356 | pXdauTrue[iDau]=part->Px(); | |
357 | pYdauTrue[iDau]=part->Py(); | |
358 | pZdauTrue[iDau]=part->Pz(); | |
359 | } | |
360 | }else{ | |
361 | return 99999.; | |
362 | } | |
363 | ||
48efc6ad | 364 | Double_t d0dummy[2]={0.,0.}; |
15917f37 | 365 | AliAODRecoDecayHF aodDvsMC(vtxTrue,origD,2,charge,pXdauTrue,pYdauTrue,pZdauTrue,d0dummy); |
366 | return aodDvsMC.ImpParXY(); | |
367 | ||
86d84fa4 | 368 | } |
b176db3b | 369 | //____________________________________________________________________________ |
370 | Double_t AliVertexingHFUtils::GetTrueImpactParameterDplus(AliAODMCHeader *mcHeader, TClonesArray* arrayMC, AliAODMCParticle *partD) { | |
371 | // true impact parameter calculation for Dplus | |
372 | ||
373 | if(!partD || !arrayMC || !mcHeader) return 99999.; | |
374 | Int_t code=partD->GetPdgCode(); | |
375 | if(TMath::Abs(code)!=411) return 99999.; | |
376 | ||
377 | Double_t vtxTrue[3]; | |
378 | mcHeader->GetVertex(vtxTrue); | |
379 | Double_t origD[3]; | |
380 | partD->XvYvZv(origD); | |
381 | Short_t charge=partD->Charge(); | |
382 | Double_t pXdauTrue[3],pYdauTrue[3],pZdauTrue[3]; | |
383 | for(Int_t iDau=0; iDau<3; iDau++){ | |
384 | pXdauTrue[iDau]=0.; | |
385 | pYdauTrue[iDau]=0.; | |
386 | pZdauTrue[iDau]=0.; | |
387 | } | |
388 | ||
389 | Int_t nDau=partD->GetNDaughters(); | |
390 | Int_t labelFirstDau = partD->GetDaughter(0); | |
391 | if(nDau==3){ | |
392 | for(Int_t iDau=0; iDau<3; iDau++){ | |
393 | Int_t ind = labelFirstDau+iDau; | |
394 | AliAODMCParticle* part = dynamic_cast<AliAODMCParticle*>(arrayMC->At(ind)); | |
395 | if(!part){ | |
396 | printf("Daughter particle not found in MC array"); | |
397 | return 99999.; | |
398 | } | |
399 | pXdauTrue[iDau]=part->Px(); | |
400 | pYdauTrue[iDau]=part->Py(); | |
401 | pZdauTrue[iDau]=part->Pz(); | |
402 | } | |
403 | }else if(nDau==2){ | |
404 | Int_t theDau=0; | |
405 | for(Int_t iDau=0; iDau<2; iDau++){ | |
406 | Int_t ind = labelFirstDau+iDau; | |
407 | AliAODMCParticle* part = dynamic_cast<AliAODMCParticle*>(arrayMC->At(ind)); | |
408 | if(!part){ | |
409 | printf("Daughter particle not found in MC array"); | |
410 | return 99999.; | |
411 | } | |
412 | Int_t pdgCode=TMath::Abs(part->GetPdgCode()); | |
413 | if(pdgCode==211 || pdgCode==321){ | |
414 | pXdauTrue[theDau]=part->Px(); | |
415 | pYdauTrue[theDau]=part->Py(); | |
416 | pZdauTrue[theDau]=part->Pz(); | |
417 | ++theDau; | |
418 | }else{ | |
419 | Int_t nDauRes=part->GetNDaughters(); | |
420 | if(nDauRes==2){ | |
421 | Int_t labelFirstDauRes = part->GetDaughter(0); | |
422 | for(Int_t iDauRes=0; iDauRes<2; iDauRes++){ | |
423 | Int_t indDR = labelFirstDauRes+iDauRes; | |
424 | AliAODMCParticle* partDR = dynamic_cast<AliAODMCParticle*>(arrayMC->At(indDR)); | |
425 | if(!partDR){ | |
426 | printf("Daughter particle not found in MC array"); | |
427 | return 99999.; | |
428 | } | |
429 | ||
430 | Int_t pdgCodeDR=TMath::Abs(partDR->GetPdgCode()); | |
431 | if(pdgCodeDR==211 || pdgCodeDR==321){ | |
432 | pXdauTrue[theDau]=partDR->Px(); | |
433 | pYdauTrue[theDau]=partDR->Py(); | |
434 | pZdauTrue[theDau]=partDR->Pz(); | |
435 | ++theDau; | |
436 | } | |
437 | } | |
438 | } | |
439 | } | |
440 | } | |
441 | if(theDau!=3){ | |
442 | printf("Wrong number of decay prongs"); | |
443 | return 99999.; | |
444 | } | |
445 | } | |
446 | ||
447 | Double_t d0dummy[3]={0.,0.,0.}; | |
448 | AliAODRecoDecayHF aodDvsMC(vtxTrue,origD,3,charge,pXdauTrue,pYdauTrue,pZdauTrue,d0dummy); | |
449 | return aodDvsMC.ImpParXY(); | |
450 | ||
451 | } | |
452 | ||
453 | ||
454 | ||
686e4710 | 455 | //____________________________________________________________________________ |
456 | Double_t AliVertexingHFUtils::GetCorrectedNtracklets(TProfile* estimatorAvg, Double_t uncorrectedNacc, Double_t vtxZ, Double_t refMult) { | |
457 | // | |
458 | // Correct the number of accepted tracklets based on a TProfile Hist | |
459 | // | |
460 | // | |
461 | ||
462 | if(TMath::Abs(vtxZ)>10.0){ | |
280cc141 | 463 | // printf("ERROR: Z vertex out of range for correction of multiplicity\n"); |
686e4710 | 464 | return uncorrectedNacc; |
465 | } | |
466 | ||
467 | if(!estimatorAvg){ | |
468 | printf("ERROR: Missing TProfile for correction of multiplicity\n"); | |
469 | return uncorrectedNacc; | |
470 | } | |
471 | ||
472 | Double_t localAvg = estimatorAvg->GetBinContent(estimatorAvg->FindBin(vtxZ)); | |
473 | ||
474 | Double_t deltaM = uncorrectedNacc*(refMult/localAvg - 1); | |
475 | ||
476 | Double_t correctedNacc = uncorrectedNacc + (deltaM>0 ? 1 : -1) * gRandom->Poisson(TMath::Abs(deltaM)); | |
477 | ||
478 | return correctedNacc; | |
479 | } | |
7f51a627 | 480 | //______________________________________________________________________ |
481 | TString AliVertexingHFUtils::GetGenerator(Int_t label, AliAODMCHeader* header){ | |
f98f4c22 | 482 | // get the name of the generator that produced a given particle |
483 | ||
484 | Int_t nsumpart=0; | |
485 | TList *lh=header->GetCocktailHeaders(); | |
486 | Int_t nh=lh->GetEntries(); | |
487 | for(Int_t i=0;i<nh;i++){ | |
488 | AliGenEventHeader* gh=(AliGenEventHeader*)lh->At(i); | |
489 | TString genname=gh->GetName(); | |
490 | Int_t npart=gh->NProduced(); | |
491 | if(label>=nsumpart && label<(nsumpart+npart)) return genname; | |
492 | nsumpart+=npart; | |
493 | } | |
494 | TString empty=""; | |
495 | return empty; | |
496 | } | |
7c0e9154 | 497 | //_____________________________________________________________________ |
498 | void AliVertexingHFUtils::GetTrackPrimaryGenerator(AliAODTrack *track,AliAODMCHeader *header,TClonesArray *arrayMC,TString &nameGen){ | |
499 | ||
500 | // method to check if a track comes from a given generator | |
f98f4c22 | 501 | |
502 | Int_t lab=TMath::Abs(track->GetLabel()); | |
7c0e9154 | 503 | nameGen=GetGenerator(lab,header); |
f98f4c22 | 504 | |
505 | // Int_t countControl=0; | |
506 | ||
507 | while(nameGen.IsWhitespace()){ | |
508 | AliAODMCParticle *mcpart= (AliAODMCParticle*)arrayMC->At(lab); | |
509 | if(!mcpart){ | |
510 | printf("AliVertexingHFUtils::IsTrackInjected - BREAK: No valid AliAODMCParticle at label %i\n",lab); | |
511 | break; | |
512 | } | |
513 | Int_t mother = mcpart->GetMother(); | |
514 | if(mother<0){ | |
515 | printf("AliVertexingHFUtils::IsTrackInjected - BREAK: Reached primary particle without valid mother\n"); | |
516 | break; | |
517 | } | |
518 | lab=mother; | |
519 | nameGen=GetGenerator(mother,header); | |
520 | // countControl++; | |
521 | // if(countControl>=10){ // 10 = arbitrary number; protection from infinite loops | |
522 | // printf("AliVertexingHFUtils::IsTrackInjected - BREAK: Protection from infinite loop active\n"); | |
523 | // break; | |
524 | // } | |
525 | } | |
526 | ||
7c0e9154 | 527 | return; |
528 | } | |
529 | //---------------------------------------------------------------------- | |
530 | Bool_t AliVertexingHFUtils::IsTrackInjected(AliAODTrack *track,AliAODMCHeader *header,TClonesArray *arrayMC){ | |
531 | // method to check if a track comes from the signal event or from the underlying Hijing event | |
532 | TString nameGen; | |
533 | GetTrackPrimaryGenerator(track,header,arrayMC,nameGen); | |
534 | ||
f98f4c22 | 535 | if(nameGen.IsWhitespace() || nameGen.Contains("ijing")) return kFALSE; |
536 | ||
537 | return kTRUE; | |
538 | } | |
539 | //____________________________________________________________________________ | |
540 | Bool_t AliVertexingHFUtils::IsCandidateInjected(AliAODRecoDecayHF *cand, AliAODMCHeader *header,TClonesArray *arrayMC){ | |
541 | // method to check if a D meson candidate comes from the signal event or from the underlying Hijing event | |
542 | ||
543 | Int_t nprongs=cand->GetNProngs(); | |
544 | for(Int_t i=0;i<nprongs;i++){ | |
545 | AliAODTrack *daugh=(AliAODTrack*)cand->GetDaughter(i); | |
546 | if(IsTrackInjected(daugh,header,arrayMC)) return kTRUE; | |
547 | } | |
548 | return kFALSE; | |
549 | } | |
c8781624 | 550 | //____________________________________________________________________________ |
d49d50fc | 551 | Bool_t AliVertexingHFUtils::HasCascadeCandidateAnyDaughInjected(AliAODRecoCascadeHF *cand, AliAODMCHeader *header,TClonesArray *arrayMC){ |
552 | // method to check if a cascade candidate comes from the signal event or from the underlying Hijing event | |
553 | ||
554 | AliAODTrack* bach = cand->GetBachelor(); | |
555 | if(IsTrackInjected(bach, header, arrayMC)) { | |
556 | AliDebug(2, "Bachelor is injected, the whole candidate is then injected"); | |
557 | return kTRUE; | |
558 | } | |
559 | AliAODv0* v0 = cand->Getv0(); | |
560 | Int_t nprongs = v0->GetNProngs(); | |
561 | for(Int_t i = 0; i < nprongs; i++){ | |
562 | AliAODTrack *daugh = (AliAODTrack*)v0->GetDaughter(i); | |
563 | if(IsTrackInjected(daugh,header,arrayMC)) { | |
564 | AliDebug(2, Form("V0 daughter number %d is injected, the whole candidate is then injected", i)); | |
565 | return kTRUE; | |
566 | } | |
567 | } | |
568 | return kFALSE; | |
569 | } | |
570 | //____________________________________________________________________________ | |
ee9c9d9b | 571 | Int_t AliVertexingHFUtils::CheckOrigin(AliStack* stack, TParticle *mcPart, Bool_t searchUpToQuark){ |
572 | // checking whether the mother of the particles come from a charm or a bottom quark | |
573 | ||
574 | Int_t pdgGranma = 0; | |
575 | Int_t mother = 0; | |
576 | mother = mcPart->GetFirstMother(); | |
577 | Int_t istep = 0; | |
578 | Int_t abspdgGranma =0; | |
579 | Bool_t isFromB=kFALSE; | |
580 | Bool_t isQuarkFound=kFALSE; | |
581 | while (mother >0 ){ | |
582 | istep++; | |
583 | TParticle* mcGranma = stack->Particle(mother); | |
584 | if (mcGranma){ | |
585 | pdgGranma = mcGranma->GetPdgCode(); | |
586 | abspdgGranma = TMath::Abs(pdgGranma); | |
587 | if ((abspdgGranma > 500 && abspdgGranma < 600) || (abspdgGranma > 5000 && abspdgGranma < 6000)){ | |
588 | isFromB=kTRUE; | |
589 | } | |
590 | if(abspdgGranma==4 || abspdgGranma==5) isQuarkFound=kTRUE; | |
591 | mother = mcGranma->GetFirstMother(); | |
592 | }else{ | |
593 | printf("CheckOrigin: Failed casting the mother particle!"); | |
594 | break; | |
595 | } | |
596 | } | |
597 | if(searchUpToQuark && !isQuarkFound) return 0; | |
598 | if(isFromB) return 5; | |
599 | else return 4; | |
600 | ||
601 | } | |
602 | //____________________________________________________________________________ | |
c8781624 | 603 | Int_t AliVertexingHFUtils::CheckOrigin(TClonesArray* arrayMC, AliAODMCParticle *mcPart, Bool_t searchUpToQuark){ |
604 | // checking whether the mother of the particles come from a charm or a bottom quark | |
605 | ||
606 | Int_t pdgGranma = 0; | |
607 | Int_t mother = 0; | |
608 | mother = mcPart->GetMother(); | |
609 | Int_t istep = 0; | |
610 | Int_t abspdgGranma =0; | |
611 | Bool_t isFromB=kFALSE; | |
612 | Bool_t isQuarkFound=kFALSE; | |
613 | while (mother >0 ){ | |
614 | istep++; | |
615 | AliAODMCParticle* mcGranma = dynamic_cast<AliAODMCParticle*>(arrayMC->At(mother)); | |
616 | if (mcGranma){ | |
617 | pdgGranma = mcGranma->GetPdgCode(); | |
618 | abspdgGranma = TMath::Abs(pdgGranma); | |
619 | if ((abspdgGranma > 500 && abspdgGranma < 600) || (abspdgGranma > 5000 && abspdgGranma < 6000)){ | |
620 | isFromB=kTRUE; | |
621 | } | |
622 | if(abspdgGranma==4 || abspdgGranma==5) isQuarkFound=kTRUE; | |
623 | mother = mcGranma->GetMother(); | |
624 | }else{ | |
625 | printf("AliVertexingHFUtils::CheckOrigin: Failed casting the mother particle!"); | |
626 | break; | |
627 | } | |
628 | } | |
629 | if(searchUpToQuark && !isQuarkFound) return 0; | |
630 | if(isFromB) return 5; | |
631 | else return 4; | |
632 | ||
633 | } | |
ee9c9d9b | 634 | |
c8781624 | 635 | //____________________________________________________________________________ |
ee9c9d9b | 636 | Int_t AliVertexingHFUtils::CheckD0Decay(AliStack* stack, Int_t label, Int_t* arrayDauLab){ |
c8781624 | 637 | // Checks the D0 decay channel. Returns 1 for the D0->Kpi case, 2 for the D0->Kpipipi case, -1 in other cases |
638 | ||
ee9c9d9b | 639 | if(label<0) return -1; |
640 | TParticle* mcPart = stack->Particle(label); | |
641 | Int_t pdgD=mcPart->GetPdgCode(); | |
642 | if(TMath::Abs(pdgD)!=421) return -1; | |
643 | ||
644 | Int_t nDau=mcPart->GetNDaughters(); | |
645 | ||
646 | if(nDau==2){ | |
647 | Int_t daughter0 = mcPart->GetDaughter(0); | |
648 | Int_t daughter1 = mcPart->GetDaughter(1); | |
649 | TParticle* mcPartDaughter0 = stack->Particle(daughter0); | |
650 | TParticle* mcPartDaughter1 = stack->Particle(daughter1); | |
651 | if(!mcPartDaughter0 || !mcPartDaughter1) return -1; | |
652 | arrayDauLab[0]=daughter0; | |
653 | arrayDauLab[1]=daughter1; | |
654 | Int_t pdgCode0=mcPartDaughter0->GetPdgCode(); | |
655 | Int_t pdgCode1=mcPartDaughter1->GetPdgCode(); | |
656 | if(!(TMath::Abs(pdgCode0)==321 && TMath::Abs(pdgCode1)==211) && | |
657 | !(TMath::Abs(pdgCode0)==211 && TMath::Abs(pdgCode1)==321)){ | |
658 | return -1; | |
659 | } | |
660 | if(TMath::Abs(pdgCode0)==321 && (pdgD*pdgCode0)>0) return -1; | |
661 | if(TMath::Abs(pdgCode1)==321 && (pdgD*pdgCode1)>0) return -1; | |
662 | if((pdgCode0*pdgCode1)>0) return -1; | |
663 | Double_t sumPxDau=mcPartDaughter0->Px()+mcPartDaughter1->Px(); | |
664 | Double_t sumPyDau=mcPartDaughter0->Py()+mcPartDaughter1->Py(); | |
665 | Double_t sumPzDau=mcPartDaughter0->Pz()+mcPartDaughter1->Pz(); | |
666 | if(TMath::Abs(mcPart->Px()-sumPxDau)>0.001) return -2; | |
667 | if(TMath::Abs(mcPart->Py()-sumPyDau)>0.001) return -2; | |
668 | if(TMath::Abs(mcPart->Pz()-sumPzDau)>0.001) return -2; | |
669 | return 1; | |
670 | } | |
671 | ||
672 | if(nDau==3 || nDau==4){ | |
673 | Int_t nKaons=0; | |
674 | Int_t nPions=0; | |
675 | Double_t sumPxDau=0.; | |
676 | Double_t sumPyDau=0.; | |
677 | Double_t sumPzDau=0.; | |
678 | Int_t nFoundKpi=0; | |
679 | Int_t labelFirstDau = mcPart->GetDaughter(0); | |
680 | for(Int_t iDau=0; iDau<nDau; iDau++){ | |
681 | Int_t indDau = labelFirstDau+iDau; | |
682 | if(indDau<0) return -1; | |
683 | TParticle* dau=stack->Particle(indDau); | |
684 | if(!dau) return -1; | |
685 | Int_t pdgdau=dau->GetPdgCode(); | |
686 | if(TMath::Abs(pdgdau)==321){ | |
687 | if(pdgD>0 && pdgdau>0) return -1; | |
688 | if(pdgD<0 && pdgdau<0) return -1; | |
689 | nKaons++; | |
690 | sumPxDau+=dau->Px(); | |
691 | sumPyDau+=dau->Py(); | |
692 | sumPzDau+=dau->Pz(); | |
693 | arrayDauLab[nFoundKpi++]=indDau; | |
694 | if(nFoundKpi>4) return -1; | |
695 | }else if(TMath::Abs(pdgdau)==211){ | |
696 | nPions++; | |
697 | sumPxDau+=dau->Px(); | |
698 | sumPyDau+=dau->Py(); | |
699 | sumPzDau+=dau->Pz(); | |
700 | arrayDauLab[nFoundKpi++]=indDau; | |
701 | if(nFoundKpi>4) return -1; | |
702 | }else if(TMath::Abs(pdgdau)==113 || TMath::Abs(pdgdau)==313){ | |
703 | Int_t nResDau=dau->GetNDaughters(); | |
704 | if(nResDau!=2) return -1; | |
705 | Int_t indFirstResDau=dau->GetDaughter(0); | |
706 | for(Int_t resDau=0; resDau<2; resDau++){ | |
707 | Int_t indResDau=indFirstResDau+resDau; | |
708 | if(indResDau<0) return -1; | |
709 | TParticle* resdau=stack->Particle(indResDau); | |
710 | if(!resdau) return -1; | |
711 | Int_t pdgresdau=resdau->GetPdgCode(); | |
712 | if(TMath::Abs(pdgresdau)==321){ | |
713 | if(pdgD>0 && pdgresdau>0) return -1; | |
714 | if(pdgD<0 && pdgresdau<0) return -1; | |
715 | nKaons++; | |
716 | sumPxDau+=resdau->Px(); | |
717 | sumPyDau+=resdau->Py(); | |
718 | sumPzDau+=resdau->Pz(); | |
719 | arrayDauLab[nFoundKpi++]=indResDau; | |
720 | if(nFoundKpi>4) return -1; | |
721 | } | |
722 | if(TMath::Abs(pdgresdau)==211){ | |
723 | nPions++; | |
724 | sumPxDau+=resdau->Px(); | |
725 | sumPyDau+=resdau->Py(); | |
726 | sumPzDau+=resdau->Pz(); | |
727 | arrayDauLab[nFoundKpi++]=indResDau; | |
728 | if(nFoundKpi>4) return -1; | |
729 | } | |
730 | } | |
731 | }else{ | |
732 | return -1; | |
733 | } | |
734 | } | |
735 | if(nPions!=3) return -1; | |
736 | if(nKaons!=1) return -1; | |
737 | if(TMath::Abs(mcPart->Px()-sumPxDau)>0.001) return -1; | |
738 | if(TMath::Abs(mcPart->Py()-sumPyDau)>0.001) return -1; | |
739 | if(TMath::Abs(mcPart->Pz()-sumPzDau)>0.001) return -1; | |
740 | return 2; | |
741 | } | |
742 | return -1; | |
743 | } | |
744 | ||
745 | //____________________________________________________________________________ | |
746 | Int_t AliVertexingHFUtils::CheckD0Decay(TClonesArray* arrayMC, AliAODMCParticle *mcPart, Int_t* arrayDauLab){ | |
747 | // Checks the D0 decay channel. Returns 1 for the D0->Kpi case, 2 for the D0->Kpipipi case, -1 in other cases | |
c8781624 | 748 | |
749 | Int_t pdgD=mcPart->GetPdgCode(); | |
750 | if(TMath::Abs(pdgD)!=421) return -1; | |
751 | ||
752 | Int_t nDau=mcPart->GetNDaughters(); | |
753 | ||
754 | if(nDau==2){ | |
755 | Int_t daughter0 = mcPart->GetDaughter(0); | |
756 | Int_t daughter1 = mcPart->GetDaughter(1); | |
757 | AliAODMCParticle* mcPartDaughter0 = dynamic_cast<AliAODMCParticle*>(arrayMC->At(daughter0)); | |
758 | AliAODMCParticle* mcPartDaughter1 = dynamic_cast<AliAODMCParticle*>(arrayMC->At(daughter1)); | |
759 | if(!mcPartDaughter0 || !mcPartDaughter1) return -1; | |
760 | arrayDauLab[0]=daughter0; | |
761 | arrayDauLab[1]=daughter1; | |
762 | Int_t pdgCode0=mcPartDaughter0->GetPdgCode(); | |
763 | Int_t pdgCode1=mcPartDaughter1->GetPdgCode(); | |
764 | if(!(TMath::Abs(pdgCode0)==321 && TMath::Abs(pdgCode1)==211) && | |
765 | !(TMath::Abs(pdgCode0)==211 && TMath::Abs(pdgCode1)==321)){ | |
766 | return -1; | |
767 | } | |
768 | if(TMath::Abs(pdgCode0)==321 && (pdgD*pdgCode0)>0) return -1; | |
769 | if(TMath::Abs(pdgCode1)==321 && (pdgD*pdgCode1)>0) return -1; | |
770 | if((pdgCode0*pdgCode1)>0) return -1; | |
771 | Double_t sumPxDau=mcPartDaughter0->Px()+mcPartDaughter1->Px(); | |
772 | Double_t sumPyDau=mcPartDaughter0->Py()+mcPartDaughter1->Py(); | |
773 | Double_t sumPzDau=mcPartDaughter0->Pz()+mcPartDaughter1->Pz(); | |
774 | if(TMath::Abs(mcPart->Px()-sumPxDau)>0.001) return -2; | |
775 | if(TMath::Abs(mcPart->Py()-sumPyDau)>0.001) return -2; | |
776 | if(TMath::Abs(mcPart->Pz()-sumPzDau)>0.001) return -2; | |
777 | return 1; | |
778 | } | |
779 | ||
780 | if(nDau==3 || nDau==4){ | |
781 | Int_t nKaons=0; | |
782 | Int_t nPions=0; | |
783 | Double_t sumPxDau=0.; | |
784 | Double_t sumPyDau=0.; | |
785 | Double_t sumPzDau=0.; | |
786 | Int_t nFoundKpi=0; | |
787 | Int_t labelFirstDau = mcPart->GetDaughter(0); | |
788 | for(Int_t iDau=0; iDau<nDau; iDau++){ | |
789 | Int_t indDau = labelFirstDau+iDau; | |
790 | if(indDau<0) return -1; | |
791 | AliAODMCParticle* dau=dynamic_cast<AliAODMCParticle*>(arrayMC->At(indDau)); | |
792 | if(!dau) return -1; | |
793 | Int_t pdgdau=dau->GetPdgCode(); | |
794 | if(TMath::Abs(pdgdau)==321){ | |
795 | if(pdgD>0 && pdgdau>0) return -1; | |
796 | if(pdgD<0 && pdgdau<0) return -1; | |
797 | nKaons++; | |
798 | sumPxDau+=dau->Px(); | |
799 | sumPyDau+=dau->Py(); | |
800 | sumPzDau+=dau->Pz(); | |
801 | arrayDauLab[nFoundKpi++]=indDau; | |
802 | if(nFoundKpi>4) return -1; | |
803 | }else if(TMath::Abs(pdgdau)==211){ | |
804 | nPions++; | |
805 | sumPxDau+=dau->Px(); | |
806 | sumPyDau+=dau->Py(); | |
807 | sumPzDau+=dau->Pz(); | |
808 | arrayDauLab[nFoundKpi++]=indDau; | |
809 | if(nFoundKpi>4) return -1; | |
810 | }else if(TMath::Abs(pdgdau)==113 || TMath::Abs(pdgdau)==313){ | |
811 | Int_t nResDau=dau->GetNDaughters(); | |
812 | if(nResDau!=2) return -1; | |
813 | Int_t indFirstResDau=dau->GetDaughter(0); | |
814 | for(Int_t resDau=0; resDau<2; resDau++){ | |
815 | Int_t indResDau=indFirstResDau+resDau; | |
816 | if(indResDau<0) return -1; | |
817 | AliAODMCParticle* resdau=dynamic_cast<AliAODMCParticle*>(arrayMC->At(indResDau)); | |
818 | if(!resdau) return -1; | |
819 | Int_t pdgresdau=resdau->GetPdgCode(); | |
820 | if(TMath::Abs(pdgresdau)==321){ | |
821 | if(pdgD>0 && pdgresdau>0) return -1; | |
822 | if(pdgD<0 && pdgresdau<0) return -1; | |
823 | nKaons++; | |
824 | sumPxDau+=resdau->Px(); | |
825 | sumPyDau+=resdau->Py(); | |
826 | sumPzDau+=resdau->Pz(); | |
827 | arrayDauLab[nFoundKpi++]=indResDau; | |
828 | if(nFoundKpi>4) return -1; | |
829 | } | |
830 | if(TMath::Abs(pdgresdau)==211){ | |
831 | nPions++; | |
832 | sumPxDau+=resdau->Px(); | |
833 | sumPyDau+=resdau->Py(); | |
834 | sumPzDau+=resdau->Pz(); | |
835 | arrayDauLab[nFoundKpi++]=indResDau; | |
836 | if(nFoundKpi>4) return -1; | |
837 | } | |
838 | } | |
839 | }else{ | |
840 | return -1; | |
841 | } | |
842 | } | |
843 | if(nPions!=3) return -1; | |
844 | if(nKaons!=1) return -1; | |
845 | if(TMath::Abs(mcPart->Px()-sumPxDau)>0.001) return -1; | |
846 | if(TMath::Abs(mcPart->Py()-sumPyDau)>0.001) return -1; | |
847 | if(TMath::Abs(mcPart->Pz()-sumPzDau)>0.001) return -1; | |
848 | return 2; | |
849 | } | |
850 | return -1; | |
851 | } | |
ee9c9d9b | 852 | //____________________________________________________________________________ |
853 | Int_t AliVertexingHFUtils::CheckDplusDecay(AliStack* stack, Int_t label, Int_t* arrayDauLab){ | |
854 | // Checks the Dplus decay channel. Returns 1 for the non-resonant case, 2 for the resonant case, -1 in other cases | |
855 | ||
856 | if(label<0) return -1; | |
857 | TParticle* mcPart = stack->Particle(label); | |
858 | Int_t pdgD=mcPart->GetPdgCode(); | |
859 | if(TMath::Abs(pdgD)!=411) return -1; | |
860 | ||
861 | Int_t nDau=mcPart->GetNDaughters(); | |
862 | Int_t labelFirstDau = mcPart->GetDaughter(0); | |
863 | Int_t nKaons=0; | |
864 | Int_t nPions=0; | |
865 | Double_t sumPxDau=0.; | |
866 | Double_t sumPyDau=0.; | |
867 | Double_t sumPzDau=0.; | |
868 | Int_t nFoundKpi=0; | |
869 | ||
870 | if(nDau==3 || nDau==2){ | |
871 | for(Int_t iDau=0; iDau<nDau; iDau++){ | |
872 | Int_t indDau = labelFirstDau+iDau; | |
873 | if(indDau<0) return -1; | |
874 | TParticle* dau=stack->Particle(indDau); | |
875 | if(!dau) return -1; | |
876 | Int_t pdgdau=dau->GetPdgCode(); | |
877 | if(TMath::Abs(pdgdau)==321){ | |
878 | if(pdgD*pdgdau>0) return -1; | |
879 | nKaons++; | |
880 | sumPxDau+=dau->Px(); | |
881 | sumPyDau+=dau->Py(); | |
882 | sumPzDau+=dau->Pz(); | |
883 | arrayDauLab[nFoundKpi++]=indDau; | |
884 | if(nFoundKpi>3) return -1; | |
885 | }else if(TMath::Abs(pdgdau)==211){ | |
886 | if(pdgD*pdgdau<0) return -1; | |
887 | nPions++; | |
888 | sumPxDau+=dau->Px(); | |
889 | sumPyDau+=dau->Py(); | |
890 | sumPzDau+=dau->Pz(); | |
891 | arrayDauLab[nFoundKpi++]=indDau; | |
892 | if(nFoundKpi>3) return -1; | |
893 | }else if(TMath::Abs(pdgdau)==313){ | |
894 | Int_t nResDau=dau->GetNDaughters(); | |
895 | if(nResDau!=2) return -1; | |
896 | Int_t indFirstResDau=dau->GetDaughter(0); | |
897 | for(Int_t resDau=0; resDau<2; resDau++){ | |
898 | Int_t indResDau=indFirstResDau+resDau; | |
899 | if(indResDau<0) return -1; | |
900 | TParticle* resdau=stack->Particle(indResDau); | |
901 | if(!resdau) return -1; | |
902 | Int_t pdgresdau=resdau->GetPdgCode(); | |
903 | if(TMath::Abs(pdgresdau)==321){ | |
904 | if(pdgD*pdgresdau>0) return -1; | |
905 | sumPxDau+=resdau->Px(); | |
906 | sumPyDau+=resdau->Py(); | |
907 | sumPzDau+=resdau->Pz(); | |
908 | nKaons++; | |
909 | arrayDauLab[nFoundKpi++]=indResDau; | |
910 | if(nFoundKpi>3) return -1; | |
911 | } | |
912 | if(TMath::Abs(pdgresdau)==211){ | |
913 | if(pdgD*pdgresdau<0) return -1; | |
914 | sumPxDau+=resdau->Px(); | |
915 | sumPyDau+=resdau->Py(); | |
916 | sumPzDau+=resdau->Pz(); | |
917 | nPions++; | |
918 | arrayDauLab[nFoundKpi++]=indResDau; | |
919 | if(nFoundKpi>3) return -1; | |
920 | } | |
921 | } | |
922 | }else{ | |
923 | return -1; | |
924 | } | |
925 | } | |
926 | if(nPions!=2) return -1; | |
927 | if(nKaons!=1) return -1; | |
928 | if(TMath::Abs(mcPart->Px()-sumPxDau)>0.001) return -2; | |
929 | if(TMath::Abs(mcPart->Py()-sumPyDau)>0.001) return -2; | |
930 | if(TMath::Abs(mcPart->Pz()-sumPzDau)>0.001) return -2; | |
931 | if(nDau==3) return 1; | |
932 | else if(nDau==2) return 2; | |
933 | } | |
934 | ||
935 | return -1; | |
936 | ||
937 | } | |
938 | ||
c8781624 | 939 | //____________________________________________________________________________ |
940 | Int_t AliVertexingHFUtils::CheckDplusDecay(TClonesArray* arrayMC, AliAODMCParticle *mcPart, Int_t* arrayDauLab){ | |
941 | // Checks the Dplus decay channel. Returns 1 for the non-resonant case, 2 for the resonant case, -1 in other cases | |
942 | ||
943 | Int_t pdgD=mcPart->GetPdgCode(); | |
944 | if(TMath::Abs(pdgD)!=411) return -1; | |
945 | ||
946 | Int_t nDau=mcPart->GetNDaughters(); | |
947 | Int_t labelFirstDau = mcPart->GetDaughter(0); | |
948 | Int_t nKaons=0; | |
949 | Int_t nPions=0; | |
950 | Double_t sumPxDau=0.; | |
951 | Double_t sumPyDau=0.; | |
952 | Double_t sumPzDau=0.; | |
953 | Int_t nFoundKpi=0; | |
954 | ||
955 | if(nDau==3 || nDau==2){ | |
956 | for(Int_t iDau=0; iDau<nDau; iDau++){ | |
957 | Int_t indDau = labelFirstDau+iDau; | |
958 | if(indDau<0) return -1; | |
959 | AliAODMCParticle* dau=dynamic_cast<AliAODMCParticle*>(arrayMC->At(indDau)); | |
960 | if(!dau) return -1; | |
961 | Int_t pdgdau=dau->GetPdgCode(); | |
962 | if(TMath::Abs(pdgdau)==321){ | |
963 | if(pdgD*pdgdau>0) return -1; | |
964 | nKaons++; | |
965 | sumPxDau+=dau->Px(); | |
966 | sumPyDau+=dau->Py(); | |
967 | sumPzDau+=dau->Pz(); | |
968 | arrayDauLab[nFoundKpi++]=indDau; | |
969 | if(nFoundKpi>3) return -1; | |
970 | }else if(TMath::Abs(pdgdau)==211){ | |
971 | if(pdgD*pdgdau<0) return -1; | |
972 | nPions++; | |
973 | sumPxDau+=dau->Px(); | |
974 | sumPyDau+=dau->Py(); | |
975 | sumPzDau+=dau->Pz(); | |
976 | arrayDauLab[nFoundKpi++]=indDau; | |
977 | if(nFoundKpi>3) return -1; | |
978 | }else if(TMath::Abs(pdgdau)==313){ | |
979 | Int_t nResDau=dau->GetNDaughters(); | |
980 | if(nResDau!=2) return -1; | |
981 | Int_t indFirstResDau=dau->GetDaughter(0); | |
982 | for(Int_t resDau=0; resDau<2; resDau++){ | |
983 | Int_t indResDau=indFirstResDau+resDau; | |
984 | if(indResDau<0) return -1; | |
985 | AliAODMCParticle* resdau=dynamic_cast<AliAODMCParticle*>(arrayMC->At(indResDau)); | |
986 | if(!resdau) return -1; | |
987 | Int_t pdgresdau=resdau->GetPdgCode(); | |
988 | if(TMath::Abs(pdgresdau)==321){ | |
989 | if(pdgD*pdgresdau>0) return -1; | |
990 | sumPxDau+=resdau->Px(); | |
991 | sumPyDau+=resdau->Py(); | |
992 | sumPzDau+=resdau->Pz(); | |
993 | nKaons++; | |
994 | arrayDauLab[nFoundKpi++]=indResDau; | |
995 | if(nFoundKpi>3) return -1; | |
996 | } | |
997 | if(TMath::Abs(pdgresdau)==211){ | |
998 | if(pdgD*pdgresdau<0) return -1; | |
999 | sumPxDau+=resdau->Px(); | |
1000 | sumPyDau+=resdau->Py(); | |
1001 | sumPzDau+=resdau->Pz(); | |
1002 | nPions++; | |
1003 | arrayDauLab[nFoundKpi++]=indResDau; | |
1004 | if(nFoundKpi>3) return -1; | |
1005 | } | |
1006 | } | |
1007 | }else{ | |
1008 | return -1; | |
1009 | } | |
1010 | } | |
1011 | if(nPions!=2) return -1; | |
1012 | if(nKaons!=1) return -1; | |
1013 | if(TMath::Abs(mcPart->Px()-sumPxDau)>0.001) return -2; | |
1014 | if(TMath::Abs(mcPart->Py()-sumPyDau)>0.001) return -2; | |
1015 | if(TMath::Abs(mcPart->Pz()-sumPzDau)>0.001) return -2; | |
1016 | if(nDau==3) return 1; | |
1017 | else if(nDau==2) return 2; | |
1018 | } | |
1019 | ||
1020 | return -1; | |
1021 | ||
1022 | } | |
ee9c9d9b | 1023 | //____________________________________________________________________________ |
1024 | Int_t AliVertexingHFUtils::CheckDsDecay(AliStack* stack, Int_t label, Int_t* arrayDauLab){ | |
1025 | // Checks the Ds decay channel. Returns 1 for Ds->phipi->KKpi, 2 for Ds->K0*K->KKpi, 3 for the non-resonant case | |
1026 | ||
1027 | if(label<0) return -1; | |
1028 | TParticle* mcPart = stack->Particle(label); | |
1029 | Int_t pdgD=mcPart->GetPdgCode(); | |
1030 | if(TMath::Abs(pdgD)!=431) return -1; | |
1031 | ||
1032 | Int_t nDau=mcPart->GetNDaughters(); | |
1033 | Int_t labelFirstDau = mcPart->GetDaughter(0); | |
1034 | Int_t nKaons=0; | |
1035 | Int_t nPions=0; | |
1036 | Double_t sumPxDau=0.; | |
1037 | Double_t sumPyDau=0.; | |
1038 | Double_t sumPzDau=0.; | |
1039 | Int_t nFoundKpi=0; | |
1040 | Bool_t isPhi=kFALSE; | |
1041 | Bool_t isk0st=kFALSE; | |
1042 | ||
1043 | if(nDau==3 || nDau==2){ | |
1044 | for(Int_t iDau=0; iDau<nDau; iDau++){ | |
1045 | Int_t indDau = labelFirstDau+iDau; | |
1046 | if(indDau<0) return -1; | |
1047 | TParticle* dau=stack->Particle(indDau); | |
1048 | if(!dau) return -1; | |
1049 | Int_t pdgdau=dau->GetPdgCode(); | |
1050 | if(TMath::Abs(pdgdau)==321){ | |
1051 | nKaons++; | |
1052 | sumPxDau+=dau->Px(); | |
1053 | sumPyDau+=dau->Py(); | |
1054 | sumPzDau+=dau->Pz(); | |
1055 | arrayDauLab[nFoundKpi++]=indDau; | |
1056 | if(nFoundKpi>3) return -1; | |
1057 | }else if(TMath::Abs(pdgdau)==211){ | |
1058 | nPions++; | |
1059 | sumPxDau+=dau->Px(); | |
1060 | sumPyDau+=dau->Py(); | |
1061 | sumPzDau+=dau->Pz(); | |
1062 | arrayDauLab[nFoundKpi++]=indDau; | |
1063 | if(nFoundKpi>3) return -1; | |
1064 | }else if(TMath::Abs(pdgdau)==313 || TMath::Abs(pdgdau)==333){ | |
1065 | if(TMath::Abs(pdgdau)==313) isk0st=kTRUE; | |
1066 | if(TMath::Abs(pdgdau)==333) isPhi=kTRUE; | |
1067 | Int_t nResDau=dau->GetNDaughters(); | |
1068 | if(nResDau!=2) return -1; | |
1069 | Int_t indFirstResDau=dau->GetDaughter(0); | |
1070 | for(Int_t resDau=0; resDau<2; resDau++){ | |
1071 | Int_t indResDau=indFirstResDau+resDau; | |
1072 | if(indResDau<0) return -1; | |
1073 | TParticle* resdau=stack->Particle(indResDau); | |
1074 | if(!resdau) return -1; | |
1075 | Int_t pdgresdau=resdau->GetPdgCode(); | |
1076 | if(TMath::Abs(pdgresdau)==321){ | |
1077 | sumPxDau+=resdau->Px(); | |
1078 | sumPyDau+=resdau->Py(); | |
1079 | sumPzDau+=resdau->Pz(); | |
1080 | nKaons++; | |
1081 | arrayDauLab[nFoundKpi++]=indResDau; | |
1082 | if(nFoundKpi>3) return -1; | |
1083 | } | |
1084 | if(TMath::Abs(pdgresdau)==211){ | |
1085 | sumPxDau+=resdau->Px(); | |
1086 | sumPyDau+=resdau->Py(); | |
1087 | sumPzDau+=resdau->Pz(); | |
1088 | nPions++; | |
1089 | arrayDauLab[nFoundKpi++]=indResDau; | |
1090 | if(nFoundKpi>3) return -1; | |
1091 | } | |
1092 | } | |
1093 | }else{ | |
1094 | return -1; | |
1095 | } | |
1096 | } | |
1097 | if(nPions!=1) return -1; | |
1098 | if(nKaons!=2) return -1; | |
1099 | if(TMath::Abs(mcPart->Px()-sumPxDau)>0.001) return -2; | |
1100 | if(TMath::Abs(mcPart->Py()-sumPyDau)>0.001) return -2; | |
1101 | if(TMath::Abs(mcPart->Pz()-sumPzDau)>0.001) return -2; | |
1102 | if(nDau==3) return 3; | |
1103 | else if(nDau==2){ | |
1104 | if(isk0st) return 2; | |
1105 | if(isPhi) return 1; | |
1106 | } | |
1107 | } | |
1108 | ||
1109 | return -1; | |
1110 | ||
1111 | } | |
1112 | //____________________________________________________________________________ | |
1113 | Int_t AliVertexingHFUtils::CheckDsDecay(TClonesArray* arrayMC, AliAODMCParticle *mcPart, Int_t* arrayDauLab){ | |
1114 | // Checks the Ds decay channel. Returns 1 for Ds->phipi->KKpi, 2 for Ds->K0*K->KKpi, 3 for the non-resonant case | |
1115 | ||
1116 | Int_t pdgD=mcPart->GetPdgCode(); | |
1117 | if(TMath::Abs(pdgD)!=431) return -1; | |
1118 | ||
1119 | Int_t nDau=mcPart->GetNDaughters(); | |
1120 | Int_t labelFirstDau = mcPart->GetDaughter(0); | |
1121 | Int_t nKaons=0; | |
1122 | Int_t nPions=0; | |
1123 | Double_t sumPxDau=0.; | |
1124 | Double_t sumPyDau=0.; | |
1125 | Double_t sumPzDau=0.; | |
1126 | Int_t nFoundKpi=0; | |
1127 | Bool_t isPhi=kFALSE; | |
1128 | Bool_t isk0st=kFALSE; | |
1129 | ||
1130 | if(nDau==3 || nDau==2){ | |
1131 | for(Int_t iDau=0; iDau<nDau; iDau++){ | |
1132 | Int_t indDau = labelFirstDau+iDau; | |
1133 | if(indDau<0) return -1; | |
1134 | AliAODMCParticle* dau=dynamic_cast<AliAODMCParticle*>(arrayMC->At(indDau)); | |
1135 | if(!dau) return -1; | |
1136 | Int_t pdgdau=dau->GetPdgCode(); | |
1137 | if(TMath::Abs(pdgdau)==321){ | |
1138 | nKaons++; | |
1139 | sumPxDau+=dau->Px(); | |
1140 | sumPyDau+=dau->Py(); | |
1141 | sumPzDau+=dau->Pz(); | |
1142 | arrayDauLab[nFoundKpi++]=indDau; | |
1143 | if(nFoundKpi>3) return -1; | |
1144 | }else if(TMath::Abs(pdgdau)==211){ | |
1145 | nPions++; | |
1146 | sumPxDau+=dau->Px(); | |
1147 | sumPyDau+=dau->Py(); | |
1148 | sumPzDau+=dau->Pz(); | |
1149 | arrayDauLab[nFoundKpi++]=indDau; | |
1150 | if(nFoundKpi>3) return -1; | |
1151 | }else if(TMath::Abs(pdgdau)==313 || TMath::Abs(pdgdau)==333){ | |
1152 | if(TMath::Abs(pdgdau)==313) isk0st=kTRUE; | |
1153 | if(TMath::Abs(pdgdau)==333) isPhi=kTRUE; | |
1154 | Int_t nResDau=dau->GetNDaughters(); | |
1155 | if(nResDau!=2) return -1; | |
1156 | Int_t indFirstResDau=dau->GetDaughter(0); | |
1157 | for(Int_t resDau=0; resDau<2; resDau++){ | |
1158 | Int_t indResDau=indFirstResDau+resDau; | |
1159 | if(indResDau<0) return -1; | |
1160 | AliAODMCParticle* resdau=dynamic_cast<AliAODMCParticle*>(arrayMC->At(indResDau)); | |
1161 | if(!resdau) return -1; | |
1162 | Int_t pdgresdau=resdau->GetPdgCode(); | |
1163 | if(TMath::Abs(pdgresdau)==321){ | |
1164 | sumPxDau+=resdau->Px(); | |
1165 | sumPyDau+=resdau->Py(); | |
1166 | sumPzDau+=resdau->Pz(); | |
1167 | nKaons++; | |
1168 | arrayDauLab[nFoundKpi++]=indResDau; | |
1169 | if(nFoundKpi>3) return -1; | |
1170 | } | |
1171 | if(TMath::Abs(pdgresdau)==211){ | |
1172 | sumPxDau+=resdau->Px(); | |
1173 | sumPyDau+=resdau->Py(); | |
1174 | sumPzDau+=resdau->Pz(); | |
1175 | nPions++; | |
1176 | arrayDauLab[nFoundKpi++]=indResDau; | |
1177 | if(nFoundKpi>3) return -1; | |
1178 | } | |
1179 | } | |
1180 | }else{ | |
1181 | return -1; | |
1182 | } | |
1183 | } | |
1184 | if(nPions!=1) return -1; | |
1185 | if(nKaons!=2) return -1; | |
1186 | if(TMath::Abs(mcPart->Px()-sumPxDau)>0.001) return -2; | |
1187 | if(TMath::Abs(mcPart->Py()-sumPyDau)>0.001) return -2; | |
1188 | if(TMath::Abs(mcPart->Pz()-sumPzDau)>0.001) return -2; | |
1189 | if(nDau==3) return 3; | |
1190 | else if(nDau==2){ | |
1191 | if(isk0st) return 2; | |
1192 | if(isPhi) return 1; | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | return -1; | |
1197 | ||
1198 | } | |
1199 | //____________________________________________________________________________ | |
1200 | Int_t AliVertexingHFUtils::CheckDstarDecay(AliStack* stack, Int_t label, Int_t* arrayDauLab){ | |
1201 | // Checks the Dstar decay channel. Returns 1 for D*->D0pi->Kpipi, -1 in other cases | |
1202 | ||
1203 | if(label<0) return -1; | |
1204 | TParticle* mcPart = stack->Particle(label); | |
1205 | Int_t pdgD=mcPart->GetPdgCode(); | |
1206 | if(TMath::Abs(pdgD)!=413) return -1; | |
1207 | ||
1208 | Int_t nDau=mcPart->GetNDaughters(); | |
1209 | if(nDau!=2) return -1; | |
1210 | ||
1211 | Int_t labelFirstDau = mcPart->GetDaughter(0); | |
1212 | Int_t nKaons=0; | |
1213 | Int_t nPions=0; | |
1214 | Double_t sumPxDau=0.; | |
1215 | Double_t sumPyDau=0.; | |
1216 | Double_t sumPzDau=0.; | |
1217 | Int_t nFoundKpi=0; | |
1218 | ||
1219 | for(Int_t iDau=0; iDau<nDau; iDau++){ | |
1220 | Int_t indDau = labelFirstDau+iDau; | |
1221 | if(indDau<0) return -1; | |
1222 | TParticle* dau=stack->Particle(indDau); | |
1223 | if(!dau) return -1; | |
1224 | Int_t pdgdau=dau->GetPdgCode(); | |
1225 | if(TMath::Abs(pdgdau)==421){ | |
1226 | Int_t nResDau=dau->GetNDaughters(); | |
1227 | if(nResDau!=2) return -1; | |
1228 | Int_t indFirstResDau=dau->GetDaughter(0); | |
1229 | for(Int_t resDau=0; resDau<2; resDau++){ | |
1230 | Int_t indResDau=indFirstResDau+resDau; | |
1231 | if(indResDau<0) return -1; | |
1232 | TParticle* resdau=stack->Particle(indResDau); | |
1233 | if(!resdau) return -1; | |
1234 | Int_t pdgresdau=resdau->GetPdgCode(); | |
1235 | if(TMath::Abs(pdgresdau)==321){ | |
1236 | if(pdgD*pdgresdau>0) return -1; | |
1237 | sumPxDau+=resdau->Px(); | |
1238 | sumPyDau+=resdau->Py(); | |
1239 | sumPzDau+=resdau->Pz(); | |
1240 | nKaons++; | |
1241 | arrayDauLab[nFoundKpi++]=indResDau; | |
1242 | if(nFoundKpi>3) return -1; | |
1243 | } | |
1244 | if(TMath::Abs(pdgresdau)==211){ | |
1245 | if(pdgD*pdgresdau<0) return -1; | |
1246 | sumPxDau+=resdau->Px(); | |
1247 | sumPyDau+=resdau->Py(); | |
1248 | sumPzDau+=resdau->Pz(); | |
1249 | nPions++; | |
1250 | arrayDauLab[nFoundKpi++]=indResDau; | |
1251 | if(nFoundKpi>3) return -1; | |
1252 | } | |
1253 | } | |
1254 | }else if(TMath::Abs(pdgdau)==211){ | |
1255 | if(pdgD*pdgdau<0) return -1; | |
1256 | nPions++; | |
1257 | sumPxDau+=dau->Px(); | |
1258 | sumPyDau+=dau->Py(); | |
1259 | sumPzDau+=dau->Pz(); | |
1260 | arrayDauLab[nFoundKpi++]=indDau; | |
1261 | if(nFoundKpi>3) return -1; | |
1262 | } | |
1263 | } | |
1264 | ||
1265 | if(nPions!=2) return -1; | |
1266 | if(nKaons!=1) return -1; | |
1267 | if(TMath::Abs(mcPart->Px()-sumPxDau)>0.001) return -2; | |
1268 | if(TMath::Abs(mcPart->Py()-sumPyDau)>0.001) return -2; | |
1269 | if(TMath::Abs(mcPart->Pz()-sumPzDau)>0.001) return -2; | |
1270 | return 1; | |
1271 | ||
1272 | } | |
1273 | ||
1274 | //____________________________________________________________________________ | |
1275 | Int_t AliVertexingHFUtils::CheckDstarDecay(TClonesArray* arrayMC, AliAODMCParticle *mcPart, Int_t* arrayDauLab){ | |
1276 | // Checks the Dstar decay channel. Returns 1 for D*->D0pi->Kpipi, -1 in other cases | |
1277 | ||
1278 | Int_t pdgD=mcPart->GetPdgCode(); | |
1279 | if(TMath::Abs(pdgD)!=413) return -1; | |
1280 | ||
1281 | Int_t nDau=mcPart->GetNDaughters(); | |
1282 | if(nDau!=2) return -1; | |
1283 | ||
1284 | Int_t labelFirstDau = mcPart->GetDaughter(0); | |
1285 | Int_t nKaons=0; | |
1286 | Int_t nPions=0; | |
1287 | Double_t sumPxDau=0.; | |
1288 | Double_t sumPyDau=0.; | |
1289 | Double_t sumPzDau=0.; | |
1290 | Int_t nFoundKpi=0; | |
1291 | ||
1292 | for(Int_t iDau=0; iDau<nDau; iDau++){ | |
1293 | Int_t indDau = labelFirstDau+iDau; | |
1294 | if(indDau<0) return -1; | |
1295 | AliAODMCParticle* dau=dynamic_cast<AliAODMCParticle*>(arrayMC->At(indDau)); | |
1296 | if(!dau) return -1; | |
1297 | Int_t pdgdau=dau->GetPdgCode(); | |
1298 | if(TMath::Abs(pdgdau)==421){ | |
1299 | Int_t nResDau=dau->GetNDaughters(); | |
1300 | if(nResDau!=2) return -1; | |
1301 | Int_t indFirstResDau=dau->GetDaughter(0); | |
1302 | for(Int_t resDau=0; resDau<2; resDau++){ | |
1303 | Int_t indResDau=indFirstResDau+resDau; | |
1304 | if(indResDau<0) return -1; | |
1305 | AliAODMCParticle* resdau=dynamic_cast<AliAODMCParticle*>(arrayMC->At(indResDau)); | |
1306 | if(!resdau) return -1; | |
1307 | Int_t pdgresdau=resdau->GetPdgCode(); | |
1308 | if(TMath::Abs(pdgresdau)==321){ | |
1309 | if(pdgD*pdgresdau>0) return -1; | |
1310 | sumPxDau+=resdau->Px(); | |
1311 | sumPyDau+=resdau->Py(); | |
1312 | sumPzDau+=resdau->Pz(); | |
1313 | nKaons++; | |
1314 | arrayDauLab[nFoundKpi++]=indResDau; | |
1315 | if(nFoundKpi>3) return -1; | |
1316 | } | |
1317 | if(TMath::Abs(pdgresdau)==211){ | |
1318 | if(pdgD*pdgresdau<0) return -1; | |
1319 | sumPxDau+=resdau->Px(); | |
1320 | sumPyDau+=resdau->Py(); | |
1321 | sumPzDau+=resdau->Pz(); | |
1322 | nPions++; | |
1323 | arrayDauLab[nFoundKpi++]=indResDau; | |
1324 | if(nFoundKpi>3) return -1; | |
1325 | } | |
1326 | } | |
1327 | }else if(TMath::Abs(pdgdau)==211){ | |
1328 | if(pdgD*pdgdau<0) return -1; | |
1329 | nPions++; | |
1330 | sumPxDau+=dau->Px(); | |
1331 | sumPyDau+=dau->Py(); | |
1332 | sumPzDau+=dau->Pz(); | |
1333 | arrayDauLab[nFoundKpi++]=indDau; | |
1334 | if(nFoundKpi>3) return -1; | |
1335 | } | |
1336 | } | |
1337 | ||
1338 | if(nPions!=2) return -1; | |
1339 | if(nKaons!=1) return -1; | |
1340 | if(TMath::Abs(mcPart->Px()-sumPxDau)>0.001) return -2; | |
1341 | if(TMath::Abs(mcPart->Py()-sumPyDau)>0.001) return -2; | |
1342 | if(TMath::Abs(mcPart->Pz()-sumPzDau)>0.001) return -2; | |
1343 | return 1; | |
1344 | ||
1345 | } | |
1346 |