1 #include "AliAnalysisTaskK0sBayes.h"
7 #include "AliInputEventHandler.h"
8 #include "AliAODEvent.h"
9 #include "AliAODVertex.h"
10 #include "AliAODTrack.h"
11 #include "AliESDtrack.h"
12 #include "AliCentrality.h"
13 #include "AliVHeader.h"
14 #include "AliAODVZERO.h"
16 #include "AliOADBContainer.h"
19 #include "AliGenHijingEventHeader.h"
20 #include "AliMCEvent.h"
21 #include "AliAODMCHeader.h"
22 #include "AliAODMCParticle.h"
24 #include "AliESDtrackCuts.h"
25 #include "AliESDVertex.h"
26 #include "AliEventplane.h"
27 #include "AliAnalysisManager.h"
31 Float_t AliAnalysisTaskK0sBayes::fPtKsMin[AliAnalysisTaskK0sBayes::nPtBin] = {0.,0.25,0.5,0.75,1,1.5,2,2.5,3,3.5,4.,5.,6.};// ptmin bin
32 Float_t AliAnalysisTaskK0sBayes::fPtKsMax[AliAnalysisTaskK0sBayes::nPtBin] = {0.25,0.5,0.75,1,1.5,2,2.5,3,3.5,4.,5.,6.,10.};// ptmax bin
36 //using namespace std;
38 ClassImp(AliAnalysisTaskK0sBayes)
39 //_____________________________________________________________________________
40 AliAnalysisTaskK0sBayes::AliAnalysisTaskK0sBayes():
42 fVtxCut(10.0), // cut on |vertex| < fVtxCut
43 fEtaCut(0.8), // cut on |eta| < fEtaCut
44 fMinPt(0.15), // cut on pt > fMinPt
83 // Default constructor (should not be used)
84 fList->SetName("contKsBayes1");
85 fList2->SetName("contKsBayes2");
86 fList3->SetName("contKsBayes3");
88 fList->SetOwner(kTRUE);
89 fList2->SetOwner(kTRUE);
90 fList3->SetOwner(kTRUE);
92 TFile *fmism = new TFile("$ALICE_ROOT/TOF/data/TOFmismatchDistr.root");
93 fHmismTOF = (TH1F *) fmism->Get("TOFmismDistr");
95 TFile *fchDist = new TFile("$ALICE_ROOT/TOF/data/TOFchannelDist.root");
96 fHchannelTOFdistr = (TH1D *) fchDist->Get("hTOFchanDist");
98 for(Int_t i=0;i < nCentrBin;i++){
108 for(Int_t i=0;i < 4;i++){
112 for(Int_t i=0;i < 1000;i++){
123 //______________________________________________________________________________
124 AliAnalysisTaskK0sBayes::AliAnalysisTaskK0sBayes(const char *name):
125 AliAnalysisTaskSE(name),
126 fVtxCut(10.0), // cut on |vertex| < fVtxCut
127 fEtaCut(0.8), // cut on |eta| < fEtaCut
128 fMinPt(0.15), // cut on pt > fMinPt
162 fHchannelTOFdistr(0),
168 DefineOutput(1, TList::Class());
169 DefineOutput(2, TList::Class());
170 DefineOutput(3, TList::Class());
171 DefineOutput(4, TList::Class());
173 // Output slot #1 writes into a TTree
174 fList->SetName("contKsBayes1");
175 fList2->SetName("contKsBayes2");
176 fList3->SetName("contKsBayes3");
178 fList->SetOwner(kTRUE);
179 fList2->SetOwner(kTRUE);
180 fList3->SetOwner(kTRUE);
182 TFile *fmism = new TFile("$ALICE_ROOT/TOF/data/TOFmismatchDistr.root");
183 fHmismTOF = (TH1F *) fmism->Get("TOFmismDistr");
185 TFile *fchDist = new TFile("$ALICE_ROOT/TOF/data/TOFchannelDist.root");
186 fHchannelTOFdistr = (TH1D *) fchDist->Get("hTOFchanDist");
188 for(Int_t i=0;i < nCentrBin;i++){
198 for(Int_t i=0;i < 4;i++){
202 for(Int_t i=0;i < 1000;i++){
212 //_____________________________________________________________________________
213 AliAnalysisTaskK0sBayes::~AliAnalysisTaskK0sBayes()
218 //______________________________________________________________________________
219 void AliAnalysisTaskK0sBayes::UserCreateOutputObjects()
222 fPIDCombined=new AliPIDCombined;
223 fPIDCombined->SetDefaultTPCPriors();
224 fPIDCombined->SetDetectorMask(AliPIDResponse::kDetTOF);
226 Float_t invMmin = 0.497-0.005*8;
227 Float_t invMmax = 0.497+0.005*8;
229 const Int_t nBinPid = 14;
231 Int_t binPid[nBinPid] = {1/*ptKs*/,1+7*(!fToEP)/*EtaPiP*/,20/*pt+*/,1/*pt-*/,5/*P+*/,1/*P-*/,2/*TOFmatch+*/,1/*TOFmatch-*/,2/*istrue*/,4/*Nsigma+*/,1/*Nsigma-*/,1+4*(fToEP)/*DeltaPhi+*/,1/*DeltaPhi-*/,1+4*(fToEP)/*Psi*/};
233 Int_t binPid2[nBinPid] = {1/*ptKs*/,1+7*(!fToEP)/*EtaPiN*/,1/*pt+*/,20/*pt-*/,1/*P+*/,5/*P-*/,1/*TOFmatch+*/,2/*TOFmatch-*/,2/*istrue*/,1/*Nsigma+*/,4/*Nsigma-*/,1/*DeltaPhi+*/,1+4*(fToEP)/*DeltaPhi-*/,1+4*(fToEP)/*Psi*/};
235 fContPid = new AliPIDperfContainer("contPID",nBinPid,binPid);
236 fContPid->SetTitleX("M_{K^{0}_{s}}");
237 fContPid->SetTitleY("centrality (%)");
238 fContPid->SetVarName(0,"p_{T}^{K^{0}_{s}}");
239 fContPid->SetVarRange(0,0,10);
240 fContPid->SetVarName(1,"#eta^{K^{0}_{s}}");
241 fContPid->SetVarRange(1,-0.8,0.8);
242 fContPid->SetVarName(2,"p_{T}^{Kp}");
243 fContPid->SetVarRange(2,0.3,4.3);
244 fContPid->SetVarName(3,"p_{T}^{Kn}");
245 fContPid->SetVarRange(3,0.3,4.3);
246 fContPid->SetVarName(4,"BayesProb^{Kp}");
247 fContPid->SetVarRange(4,0,1.);
248 fContPid->SetVarName(5,"BayesProb^{Kn}");
249 fContPid->SetVarRange(5,0,1.);
250 fContPid->SetVarName(6,"isTOFmatch^{Kp}");
251 fContPid->SetVarRange(6,-0.5,1.5);
252 fContPid->SetVarName(7,"isTOFmatch^{Kn}");
253 fContPid->SetVarRange(7,-0.5,1.5);
254 fContPid->SetVarName(8,"isKsTrue^{Kn}");
255 fContPid->SetVarRange(8,-0.5,1.5);
256 fContPid->SetVarName(9,"N#sigma^{Kp}");
257 fContPid->SetVarRange(9,1.25,6.25);
258 fContPid->SetVarName(10,"N#sigma^{Kn}");
259 fContPid->SetVarRange(10,1.25,6.25);
260 fContPid->SetVarName(11,"#Delta#phi^{Kp}");
261 fContPid->SetVarRange(11,-TMath::Pi(),TMath::Pi());
262 fContPid->SetVarName(12,"#Delta#phi^{Kn}");
263 fContPid->SetVarRange(12,-TMath::Pi(),TMath::Pi());
264 fContPid->SetVarName(13,"#Psi");
265 fContPid->SetVarRange(13,-TMath::Pi()/2,TMath::Pi()/2);
267 fContPid2 = new AliPIDperfContainer("contPID2",nBinPid,binPid2);
268 fContPid2->SetTitleX("M_{K^{0}_{s}}");
269 fContPid2->SetTitleY("centrality (%)");
270 fContPid2->SetVarName(0,"p_{T}^{K^{0}_{s}}");
271 fContPid2->SetVarRange(0,0,10);
272 fContPid2->SetVarName(1,"#eta^{K^{0}_{s}}");
273 fContPid2->SetVarRange(1,-0.8,0.8);
274 fContPid2->SetVarName(2,"p_{T}^{Kp}");
275 fContPid2->SetVarRange(2,0.3,4.3);
276 fContPid2->SetVarName(3,"p_{T}^{Kn}");
277 fContPid2->SetVarRange(3,0.3,4.3);
278 fContPid2->SetVarName(4,"BayesProb^{Kp}");
279 fContPid2->SetVarRange(4,0,1.);
280 fContPid2->SetVarName(5,"BayesProb^{Kn}");
281 fContPid2->SetVarRange(5,0,1.);
282 fContPid2->SetVarName(6,"isTOFmatch^{Kp}");
283 fContPid2->SetVarRange(6,-0.5,1.5);
284 fContPid2->SetVarName(7,"isTOFmatch^{Kn}");
285 fContPid2->SetVarRange(7,-0.5,1.5);
286 fContPid2->SetVarName(8,"isKsTrue^{Kn}");
287 fContPid2->SetVarRange(8,-0.5,1.5);
288 fContPid2->SetVarName(9,"N#sigma^{Kp}");
289 fContPid2->SetVarRange(9,1.25,6.25);
290 fContPid2->SetVarName(10,"N#sigma^{Kn}");
291 fContPid2->SetVarRange(10,1.25,6.25);
292 fContPid2->SetVarName(11,"#Delta#phi^{Kp}");
293 fContPid2->SetVarRange(11,-TMath::Pi(),TMath::Pi());
294 fContPid2->SetVarName(12,"#Delta#phi^{Kn}");
295 fContPid2->SetVarRange(12,-TMath::Pi(),TMath::Pi());
296 fContPid2->SetVarName(13,"#Psi");
297 fContPid2->SetVarRange(13,-TMath::Pi()/2,TMath::Pi()/2);
299 const Int_t nDETsignal = 100; // mass
300 Double_t binDETsignal[nDETsignal+1];
301 for(Int_t i=0;i<nDETsignal+1;i++){
302 binDETsignal[i] = invMmin + i*(invMmax - invMmin) / nDETsignal;
304 const Int_t nDETsignal2 = 10; // centrality
305 Double_t binDETsignal2[nDETsignal2+1];
306 for(Int_t i=0;i<nDETsignal2+1;i++){
307 binDETsignal2[i] = i*100./ nDETsignal2;
309 fContPid->AddSpecies("K0s",nDETsignal,binDETsignal,nDETsignal2,binDETsignal2);
310 fContPid2->AddSpecies("K0s2",nDETsignal,binDETsignal,nDETsignal2,binDETsignal2);
312 fList->Add(fContPid);
313 fList->Add(fContPid2);
315 const Int_t nBinUser = 6;
316 Int_t binUser[nBinUser] = {8/*Eta*/,20/*pt*/,2/*istrue*/,4/*whatSelection*/,1/*DeltaPhi*/,1/*Psi*/};
317 fContUser = new AliPIDperfContainer("contUserPID",nBinUser,binUser);
318 fContUser->SetTitleX("M_{K^{0}_{s}}");
319 fContUser->SetTitleY("centrality (%)");
320 fContUser->SetVarName(0,"#eta^{K^{0}_{s}}");
321 fContUser->SetVarRange(0,-0.8,0.8);
322 fContUser->SetVarName(1,"p_{T}");
323 fContUser->SetVarRange(1,0.3,4.3);
324 fContUser->SetVarName(2,"isKsTrue^{Kn}");
325 fContUser->SetVarRange(2,-0.5,1.5);
326 fContUser->SetVarName(3,"whatSelected"); // 0=no, 1=pi, 2=K, 3=p
327 fContUser->SetVarRange(3,-0.5,3.5);
328 fContUser->SetVarName(4,"#Delta#phi");
329 fContUser->SetVarRange(4,-TMath::Pi(),TMath::Pi());
330 fContUser->SetVarName(5,"#Psi");
331 fContUser->SetVarRange(5,-TMath::Pi()/2,TMath::Pi()/2);
333 fContUser2 = new AliPIDperfContainer("contUserPID2",nBinUser,binUser);
334 fContUser2->SetTitleX("M_{K^{0}_{s}}");
335 fContUser2->SetTitleY("centrality (%)");
336 fContUser2->SetVarName(0,"#eta^{K^{0}_{s}}");
337 fContUser2->SetVarRange(0,-0.8,0.8);
338 fContUser2->SetVarName(1,"p_{T}");
339 fContUser2->SetVarRange(1,0.3,4.3);
340 fContUser2->SetVarName(2,"isKsTrue^{Kn}");
341 fContUser2->SetVarRange(2,-0.5,1.5);
342 fContUser2->SetVarName(3,"whatSelected");
343 fContUser2->SetVarRange(3,-0.5,3.5);
344 fContUser2->SetVarName(4,"#Delta#phi");
345 fContUser2->SetVarRange(4,-TMath::Pi(),TMath::Pi());
346 fContUser2->SetVarName(5,"#Psi");
347 fContUser2->SetVarRange(5,-TMath::Pi()/2,TMath::Pi()/2);
349 fContUser->AddSpecies("K0s",nDETsignal,binDETsignal,nDETsignal2,binDETsignal2);
350 fContUser2->AddSpecies("K0s2",nDETsignal,binDETsignal,nDETsignal2,binDETsignal2);
352 fList->Add(fContUser);
353 fList->Add(fContUser2);
355 hMatching[0] = new TH2F("hMatchAll","TOF matched (all);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
356 hMatching[1] = new TH2F("hMatchPi","TOF matched (#pi);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
357 hMatching[2] = new TH2F("hMatchKa","TOF matched (K);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
358 hMatching[3] = new TH2F("hMatchPr","TOF matched (p);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
360 hTracking[0] = new TH2F("hTrackingAll","TPC tracks (all);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
361 hTracking[1] = new TH2F("hTrackingPi","TPC tracks (#pi);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
362 hTracking[2] = new TH2F("hTrackingKa","TPC tracks (K);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
363 hTracking[3] = new TH2F("hTrackingPr","TPC tracks (p);p_{T} (GeV/#it{c});centrality (%)",50,0,10,nDETsignal2,0,100);
365 fList2->Add(hMatching[0]);
366 fList2->Add(hMatching[1]);
367 fList2->Add(hMatching[2]);
368 fList2->Add(hMatching[3]);
369 fList2->Add(hTracking[0]);
370 fList2->Add(hTracking[1]);
371 fList2->Add(hTracking[2]);
372 fList2->Add(hTracking[3]);
374 fTOFTPCsignal = new TH2F("hTOFTPCsignal","TOF-TPC signal for pions (0.8 < p_{T} < 0.9 GeV/#it{c}, cent. = 0-20);N#sigma_{TOF};N#sigma_{TPC}",100,-5,5,100,-5,5);
375 fList2->Add(fTOFTPCsignal);
376 fCombsignal = new TH1F("hCombsignal","Combined signal for pions (0.8 < p_{T} < 0.9 GeV/#it{c}, cent. = 0-20);N#sigma",100,0,5);
377 fList2->Add(fCombsignal);
380 char name[100],title[400];
381 for(Int_t i=0;i < nCentrBin;i++){
382 snprintf(name,100,"hPiTPCQA_%i",i);
383 snprintf(title,400,"TPC signal for #pi cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
384 fPiTPC[i] = new TH2F(name,title,50,0,4,200,-10,10);
385 fList3->Add(fPiTPC[i]);
387 snprintf(name,100,"hKaTPCQA_%i",i);
388 snprintf(title,400,"TPC signal for K cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
389 fKaTPC[i] = new TH2F(name,title,50,0,4,200,-10,10);
390 fList3->Add(fKaTPC[i]);
392 snprintf(name,100,"hPrTPCQA_%i",i);
393 snprintf(title,400,"TPC signal for p cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
394 fPrTPC[i] = new TH2F(name,title,50,0,4,200,-10,10);
395 fList3->Add(fPrTPC[i]);
397 snprintf(name,100,"hElTPCQA_%i",i);
398 snprintf(title,400,"TPC signal for e cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
399 fElTPC[i] = new TH2F(name,title,50,0,4,200,-10,10);
400 fList3->Add(fElTPC[i]);
402 snprintf(name,100,"hPiTOFQA_%i",i);
403 snprintf(title,400,"TOF signal for #pi cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
404 fPiTOF[i] = new TH2F(name,title,50,0,4,200,-10,10);
405 fList3->Add(fPiTOF[i]);
407 snprintf(name,100,"hKaTOFQA_%i",i);
408 snprintf(title,400,"TOF signal for K cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
409 fKaTOF[i] = new TH2F(name,title,50,0,4,200,-10,10);
410 fList3->Add(fKaTOF[i]);
412 snprintf(name,100,"hPrTOFQA_%i",i);
413 snprintf(title,400,"TOF signal for p cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
414 fPrTOF[i] = new TH2F(name,title,50,0,4,200,-10,10);
415 fList3->Add(fPrTOF[i]);
417 snprintf(name,100,"hElTOFQA_%i",i);
418 snprintf(title,400,"TOF signal for e cent=%i-%i%c;p_{T} (GeV/#it{c});N#sigma",i*10,(i+1)*10,'%');
419 fElTOF[i] = new TH2F(name,title,50,0,4,200,-10,10);
420 fList3->Add(fElTOF[i]);
430 //______________________________________________________________________________
431 void AliAnalysisTaskK0sBayes::UserExec(Option_t *)
434 // Called for each event
436 fOutputAOD = dynamic_cast<AliAODEvent*>(InputEvent());
438 Printf("%s:%d AODEvent not found in Input Manager",(char*)__FILE__,__LINE__);
443 Float_t zvtx = GetVertex(fOutputAOD);
449 AliAODMCHeader *mcHeader = dynamic_cast<AliAODMCHeader*>(fOutputAOD->GetList()->FindObject(AliAODMCHeader::StdBranchName()));
451 AliError("Could not find MC Header in AOD");
456 if (TMath::Abs(zvtx) < fVtxCut) {
461 Float_t v0Centr = -10.;
462 Float_t trkCentr = -10.;
463 AliCentrality *centrality = fOutputAOD->GetCentrality();
465 trkCentr = centrality->GetCentralityPercentile("V0M");
466 v0Centr = centrality->GetCentralityPercentile("TRK");
470 v0Centr=100./(fOutputAOD->GetNumberOfTracks()/12.+1);
474 if((TMath::Abs(v0Centr - trkCentr) < 5.0 || (fTypeCol!=2)) && v0Centr>0){ // consistency cut on centrality selection
475 fCentrality = v0Centr;
476 Analyze(fOutputAOD); // Do analysis!!!!
483 //________________________________________________________________________
484 void AliAnalysisTaskK0sBayes::Analyze(AliAODEvent* aodEvent)
487 Int_t ntrack = aodEvent->GetNumberOfTracks();
489 fPtKp=0.,fPhiKp=0.,fEtaKp=0.;
490 fPtKn=0.,fPhiKn=0.,fEtaKn=0.;
498 Float_t invMmin = 0.497-0.005*8;
499 Float_t invMmax = 0.497+0.005*8;
502 if(fCentrality < 0) icentr = 8;
503 else if(fCentrality < 10) icentr = 0;
504 else if(fCentrality < 20) icentr = 1;
505 else if(fCentrality < 30) icentr = 2;
506 else if(fCentrality < 40) icentr = 3;
507 else if(fCentrality < 50) icentr = 4;
508 else if(fCentrality < 60) icentr = 5;
509 else if(fCentrality < 70) icentr = 6;
510 else if(fCentrality < 80) icentr = 7;
512 Float_t addMismatchForMC = 0.005;
513 if(fCentrality < 50) addMismatchForMC += 0.005;
514 if(fCentrality < 20) addMismatchForMC += 0.02;
516 if(fTypeCol == 0 || fTypeCol == 1) addMismatchForMC = 0.005;
520 Double_t Qx2 = 0, Qy2 = 0;
521 Double_t Qx3 = 0, Qy3 = 0;
522 for(Int_t iT = 0; iT < ntrack; iT++) {
523 AliAODTrack* aodTrack = aodEvent->GetTrack(iT);
529 Bool_t trkFlag = aodTrack->TestFilterBit(fFilterBit);
531 if ((TMath::Abs(aodTrack->Eta()) > 0.8) || (aodTrack->Pt() < 0.2) || (aodTrack->GetTPCNcls() < fNcluster) || !trkFlag)
534 Double_t b[2] = {-99., -99.};
535 Double_t bCov[3] = {-99., -99., -99.};
536 if (!aodTrack->PropagateToDCA(aodEvent->GetPrimaryVertex(), aodEvent->GetMagneticField(), 100., b, bCov))
539 if ((TMath::Abs(b[0]) > 3.0) || (TMath::Abs(b[1]) > 2.4))
542 Qx2 += TMath::Cos(2*aodTrack->Phi());
543 Qy2 += TMath::Sin(2*aodTrack->Phi());
544 Qx3 += TMath::Cos(3*aodTrack->Phi());
545 Qy3 += TMath::Sin(3*aodTrack->Phi());
549 fPsi = TMath::ATan2(Qy2, Qx2)/2.;
551 AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
552 AliInputEventHandler* inputHandler = (AliInputEventHandler*) (man->GetInputEventHandler());
553 AliPIDResponse *PIDResponse=inputHandler->GetPIDResponse();
555 fPIDCombined->SetDetectorMask(AliPIDResponse::kDetTPC|AliPIDResponse::kDetTOF);
557 Double_t probP[10] = {0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
558 Double_t probN[10] = {0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
559 Double_t nSigmaTPC,nSigmaTOF=6,nSigmaTPC2,nSigmaTOF2=6,nSigmaComb,nSigmaComb2;
562 AliAODMCHeader *mcHeader = dynamic_cast<AliAODMCHeader*>(aodEvent->GetList()->FindObject(AliAODMCHeader::StdBranchName()));
563 TClonesArray *mcArray = NULL;
565 mcArray = (TClonesArray*)aodEvent->GetList()->FindObject(AliAODMCParticle::StdBranchName());
569 nmc = mcArray->GetEntries();
571 for(Int_t i=0;i < ntrack;i++){ // loop on tracks
572 AliAODTrack* track = aodEvent->GetTrack(i);
574 AliAODMCParticle *mcp = NULL;
581 Int_t tofMatch = (track->GetStatus() & AliVTrack::kTOFout) && (track->GetStatus() & AliVTrack::kTIME);
585 label = track->GetLabel();
586 if(label != -1 && label < nmc){
587 label = TMath::Abs(label);
588 mcp = (AliAODMCParticle*)mcArray->At(label);
589 pdg = TMath::Abs(mcp->GetPdgCode());
595 /*UInt_t detUsed =*/ fPIDCombined->ComputeProbabilities(track, PIDResponse, probP);
598 if(track->TestFilterBit(fFilterBit) && TMath::Abs(track->Eta()) < 0.8 && track->Charge() > 0){
599 hTracking[0]->Fill(track->Pt(),fCentrality);
601 hTracking[1]->Fill(track->Pt(),fCentrality);
603 hTracking[2]->Fill(track->Pt(),fCentrality);
605 hTracking[3]->Fill(track->Pt(),fCentrality);
606 else if(! mcp){ // Fill matching histo with the prob
607 hTracking[1]->Fill(track->Pt(),fCentrality,probP[2]);
608 hTracking[2]->Fill(track->Pt(),fCentrality,probP[3]);
609 hTracking[3]->Fill(track->Pt(),fCentrality,probP[4]);
613 if(!tofMatch) continue;
615 if(track->TestFilterBit(fFilterBit) && TMath::Abs(track->Eta()) < 0.8 && track->Charge() > 0){
616 hMatching[0]->Fill(track->Pt(),fCentrality);
618 hMatching[1]->Fill(track->Pt(),fCentrality);
620 hMatching[2]->Fill(track->Pt(),fCentrality);
622 hMatching[3]->Fill(track->Pt(),fCentrality);
623 else if(! mcp){ // Fill matching histo with the prob
624 hMatching[1]->Fill(track->Pt(),fCentrality,probP[2]);
625 hMatching[2]->Fill(track->Pt(),fCentrality,probP[3]);
626 hMatching[3]->Fill(track->Pt(),fCentrality,probP[4]);
635 // start analysis K0s
636 for(Int_t i=0;i < ntrack;i++){ // loop on positive tracks
637 AliAODTrack* KpTrack = aodEvent->GetTrack(i);
643 if(!(KpTrack->Charge() > 0 && KpTrack->Pt() > 0.3 && TMath::Abs(KpTrack->Eta()) < 0.8)) continue;
647 fPtKp=KpTrack->Pt(),fPhiKp=KpTrack->Phi(),fEtaKp=KpTrack->Eta();
650 UInt_t detUsedP = fPIDCombined->ComputeProbabilities(KpTrack, PIDResponse, probP);
653 fPIDCombined->GetPriors(KpTrack, oldpP, PIDResponse, detUsedP);
655 nSigmaTPC = PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kPion);
657 if(! (TMath::Abs(nSigmaTPC) < 5)) continue;
659 Int_t tofMatch1 = (KpTrack->GetStatus() & AliVTrack::kTOFout) && (KpTrack->GetStatus() & AliVTrack::kTIME);
663 Int_t labelK = TMath::Abs(KpTrack->GetLabel());
664 AliAODMCParticle *mcp1 = (AliAODMCParticle*)mcArray->At(labelK);
665 pdg1 = TMath::Abs(mcp1->GetPdgCode());
669 fPidKp = Int_t(probP[2]*100);
672 if(!IsChannelValid(TMath::Abs(KpTrack->Eta()))){
673 // remove this tof hit
674 fPIDCombined->SetDetectorMask(AliPIDResponse::kDetTPC);
675 detUsedP = fPIDCombined->ComputeProbabilities(KpTrack, PIDResponse, probP);
676 fPIDCombined->SetDetectorMask(AliPIDResponse::kDetTPC|AliPIDResponse::kDetTOF);
677 fPidKp = Int_t(probP[4]*100);
681 if(probP[2] > probP[3] && probP[2] > probP[4] && probP[2] > probP[0]) fPidKp += 128; // max prob
683 nSigmaTOF = PIDResponse->NumberOfSigmasTOF(KpTrack,AliPID::kProton);
684 if(TMath::Abs(PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kProton))<1) fPrTOF[icentr]->Fill(fPtKp,nSigmaTOF);
685 if(TMath::Abs(nSigmaTOF)<1) fPrTPC[icentr]->Fill(fPtKp,PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kProton));
686 nSigmaTOF = PIDResponse->NumberOfSigmasTOF(KpTrack,AliPID::kElectron);
687 if(TMath::Abs(PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kElectron))<1) fElTOF[icentr]->Fill(fPtKp,nSigmaTOF);
688 if(TMath::Abs(nSigmaTOF)<1) fElTPC[icentr]->Fill(fPtKp,PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kElectron));
689 nSigmaTOF = PIDResponse->NumberOfSigmasTOF(KpTrack,AliPID::kKaon);
690 if(TMath::Abs(PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kKaon))<1) fKaTOF[icentr]->Fill(fPtKp,nSigmaTOF);
691 if(TMath::Abs(nSigmaTOF)<1) fKaTPC[icentr]->Fill(fPtKp,PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kKaon));
692 nSigmaTOF = PIDResponse->NumberOfSigmasTOF(KpTrack,AliPID::kPion);
693 if(TMath::Abs(PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kPion))<1) fPiTOF[icentr]->Fill(fPtKp,nSigmaTOF);
694 if(TMath::Abs(nSigmaTOF)<1) fPiTPC[icentr]->Fill(fPtKp,PIDResponse->NumberOfSigmasTPC(KpTrack,AliPID::kPion));
697 Float_t mismAdd = addMismatchForMC;
698 if(KpTrack->Pt() < 1) mismAdd = addMismatchForMC/KpTrack->Pt();
700 if(gRandom->Rndm() < mismAdd){
701 Float_t etaAbs = TMath::Abs(KpTrack->Eta());
702 Int_t channel = Int_t(4334.09 - 4758.36 * etaAbs -1989.71 * etaAbs*etaAbs + 1957.62*etaAbs*etaAbs*etaAbs);
703 channel = channel % 8736;
704 Float_t distIP = fHchannelTOFdistr->GetBinContent(channel);
706 // generate random time
707 Float_t timeRandom = fHmismTOF->GetRandom() + distIP*3.35655419905265973e+01;
709 KpTrack->GetIntegratedTimes(times);
710 nSigmaTOF = TMath::Abs(timeRandom - times[2])/PIDResponse->GetTOFResponse().GetExpectedSigma(KpTrack->P(), times[3], AliPID::kPion);
714 if(fCentrality < 20 && KpTrack->Pt() < 0.9 && KpTrack->Pt() > 0.8)fTOFTPCsignal->Fill(nSigmaTOF,nSigmaTPC);
715 nSigmaTOF = TMath::Abs(nSigmaTOF);
717 if(nSigmaTOF < 2) fPidKp += 256;
718 else if(nSigmaTOF < 3) fPidKp += 512;
723 nSigmaComb = TMath::Sqrt(nSigmaTOF*nSigmaTOF + nSigmaTPC*nSigmaTPC);
724 if(nSigmaTOF < 5 && fCentrality < 20 && KpTrack->Pt() < 0.9 && KpTrack->Pt() > 0.8){
725 fCombsignal->Fill(nSigmaComb);
728 nSigmaComb = TMath::Abs(nSigmaTPC);
731 // use sigmaTOF instead of sigmaComb
732 if(tofMatch1) nSigmaComb = nSigmaTOF;
734 if(nSigmaComb < 2) nSigmaComb = 2;
735 else if(nSigmaComb < 3) nSigmaComb = 3;
736 else if(nSigmaComb < 5) nSigmaComb = 4.99;
740 for(Int_t k=0;k < fNK0s;k++){ // find the K0s which contains the positive track
741 if(i == fIpiP[k]) iks = k;
744 if(fPtKp > 4.299) fPtKp = 4.299;
746 if(iks > -1 && fIpiN[iks] > -1){
747 //for(Int_t j=0;j < ntrack;j++){ // loop on negative tracks
748 Int_t j = fIpiN[iks];
749 AliAODTrack* KnTrack = aodEvent->GetTrack(j);
755 if(!(KnTrack->Charge() < 0 && KnTrack->Pt() > 0.3 && TMath::Abs(KnTrack->Eta()) < 0.8)) continue;
757 fPtKn=KnTrack->Pt(),fPhiKn=KnTrack->Phi(),fEtaKn=KnTrack->Eta();
760 UInt_t detUsedN = fPIDCombined->ComputeProbabilities(KnTrack, PIDResponse, probN);
762 fPIDCombined->GetPriors(KnTrack, oldpN, PIDResponse, detUsedN);
764 nSigmaTPC2 = PIDResponse->NumberOfSigmasTPC(KnTrack,AliPID::kPion);
766 if(! (TMath::Abs(nSigmaTPC2) < 5)) continue;
771 Int_t tofMatch2 = (KnTrack->GetStatus() & AliVTrack::kTOFout) && (KnTrack->GetStatus() & AliVTrack::kTIME);
774 Int_t labelK = TMath::Abs(KnTrack->GetLabel());
775 AliAODMCParticle *mcp2 = (AliAODMCParticle*)mcArray->At(labelK);
776 pdg2 = TMath::Abs(mcp2->GetPdgCode());
780 fPidKn = Int_t(probN[2]*100);
783 if(!IsChannelValid(TMath::Abs(KnTrack->Eta()))){
784 // remove this tof hit
785 fPIDCombined->SetDetectorMask(AliPIDResponse::kDetTPC);
786 detUsedP = fPIDCombined->ComputeProbabilities(KnTrack, PIDResponse, probN);
787 fPIDCombined->SetDetectorMask(AliPIDResponse::kDetTPC|AliPIDResponse::kDetTOF);
788 fPidKn = Int_t(probN[4]*100);
792 if(probN[2] > probN[3] && probN[2] > probN[4] && probN[2] > probN[0]) fPidKn += 128; // max prob
794 nSigmaTOF2 = PIDResponse->NumberOfSigmasTOF(KnTrack,AliPID::kPion);
796 nSigmaTOF2 = TMath::Abs(nSigmaTOF2);
799 Float_t mismAdd = addMismatchForMC;
800 if(KnTrack->Pt() < 1) mismAdd = addMismatchForMC/KnTrack->Pt();
802 if(gRandom->Rndm() < mismAdd){
803 Float_t etaAbs = TMath::Abs(KnTrack->Eta());
804 Int_t channel = Int_t(4334.09 - 4758.36 * etaAbs -1989.71 * etaAbs*etaAbs + 1957.62*etaAbs*etaAbs*etaAbs);
805 channel = channel % 8736;
806 Float_t distIP = fHchannelTOFdistr->GetBinContent(channel);
808 // generate random time
809 Float_t timeRandom = fHmismTOF->GetRandom() + distIP*3.35655419905265973e+00;
811 KnTrack->GetIntegratedTimes(times);
812 nSigmaTOF2 = TMath::Abs(timeRandom - times[2])/PIDResponse->GetTOFResponse().GetExpectedSigma(KnTrack->P(), times[3], AliPID::kPion);
816 if(fCentrality < 20 && KnTrack->Pt() < 1.2 && KnTrack->Pt() > 1) fTOFTPCsignal->Fill(nSigmaTOF2,nSigmaTPC2);
818 if(nSigmaTOF2 < 2) fPidKn += 256;
819 else if(nSigmaTOF2 < 3) fPidKn += 512;
823 px = KpTrack->Px() + KnTrack->Px();
824 py = KpTrack->Py() + KnTrack->Py();
825 pz = KpTrack->Pz() + KnTrack->Pz();
826 E = TMath::Sqrt(KpTrack->P()*KpTrack->P() + 1.39e-01*1.39e-01);
827 E += TMath::Sqrt(KnTrack->P()*KnTrack->P()+ 1.39e-01*1.39e-01);
829 ksV.SetPxPyPzE(px,py,pz,E);
830 fMassV0 = fMassKs[iks];
832 if(fMassV0 < invMmin || fMassV0 > invMmax) continue;
840 nSigmaComb2 = TMath::Sqrt(nSigmaTOF2*nSigmaTOF2+ nSigmaTPC2*nSigmaTPC2);
841 if(nSigmaTOF2 < 5 && fCentrality < 20 && KnTrack->Pt() < 1.2 && KnTrack->Pt() > 1){
842 fCombsignal->Fill(nSigmaComb2);
845 nSigmaComb2 = TMath::Abs(nSigmaTPC2);
848 // use sigmaTOF instead of sigmaComb
849 if(tofMatch2) nSigmaComb2 = nSigmaTOF2;
851 if(nSigmaComb2 < 2) nSigmaComb2 = 2;
852 else if(nSigmaComb2 < 3) nSigmaComb2 = 3;
853 else if(nSigmaComb2 < 5) nSigmaComb2 = 4.99;
854 else nSigmaComb2 = 6;
856 Bool_t isTrue = kFALSE;
859 Int_t labelP = TMath::Abs(KpTrack->GetLabel());
860 Int_t labelN = TMath::Abs(KnTrack->GetLabel());
862 if(labelP > -1 && labelN > -1){
863 AliAODMCParticle *partP = (AliAODMCParticle*)mcArray->At(labelP);
864 AliAODMCParticle *partN = (AliAODMCParticle*)mcArray->At(labelN);
866 Int_t mP = partP->GetMother();
867 Int_t mN = partN->GetMother();
868 if(mP == mN && mP > -1){
869 AliAODMCParticle *partM = (AliAODMCParticle*)mcArray->At(mP);
870 Int_t pdgM = partM->GetPdgCode();
871 if(pdgM == 310) isTrue = kTRUE;
877 Double_t deltaphi1 = KpTrack->Phi() - fPsi;
878 Double_t deltaphi2 = KnTrack->Phi() - fPsi;
880 if(gRandom->Rndm() < 0.5){
881 deltaphi1 += TMath::Pi();
882 deltaphi2 += TMath::Pi();
885 while(deltaphi1 > TMath::Pi()) deltaphi1 -= TMath::Pi()*2;
886 while(deltaphi1 < -TMath::Pi()) deltaphi1 += TMath::Pi()*2;
887 while(deltaphi2 > TMath::Pi()) deltaphi2 -= TMath::Pi()*2;
888 while(deltaphi2 < -TMath::Pi()) deltaphi2 += TMath::Pi()*2;
890 if(fPtKn > 4.299) fPtKn = 4.299;
892 Float_t xTOfill[] = {fPtKs,KpTrack->Eta(),fPtKp,fPtKn,(fPidKp%128)*0.01,(fPidKn%128)*0.01,tofMatch1,tofMatch2,isTrue,nSigmaComb,nSigmaComb2,deltaphi1,deltaphi2,fPsi};
896 while(fPtKsMin[ipt] < fPtKs && ipt < nPtBin){
900 if(ipt < 0) ipt = 0; // just to be sure
902 if(TMath::Abs(fEtaKs) < 0.8 && fPtKp > 0.3 && fPtKn > 0.3){
903 fContPid->Fill(0,fMassV0,fCentrality,xTOfill);
904 xTOfill[1] = KnTrack->Eta();
905 fContPid2->Fill(0,fMassV0,fCentrality,xTOfill);
908 Float_t xUser[] = {KpTrack->Eta(),fPtKp,isTrue,0,deltaphi1,fPsi};
909 Float_t xUser2[] = {KnTrack->Eta(),fPtKn,isTrue,0,deltaphi2,fPsi};
911 if(fPIDuserCut->IsSelected(KpTrack,AliPID::kPion)){ // to be filled for positive
913 } else if(fPIDuserCut->IsSelected(KpTrack,AliPID::kKaon)){
915 } else if(fPIDuserCut->IsSelected(KpTrack,AliPID::kProton)){
918 if(fPIDuserCut->IsSelected(KnTrack,AliPID::kPion)){ // to be filled for negative
920 } else if(fPIDuserCut->IsSelected(KnTrack,AliPID::kKaon)){
922 } else if(fPIDuserCut->IsSelected(KnTrack,AliPID::kProton)){
925 fContUser->Fill(0,fMassV0,fCentrality,xUser);
926 fContUser2->Fill(0,fMassV0,fCentrality,xUser2);
936 //_____________________________________________________________________________
937 Float_t AliAnalysisTaskK0sBayes::GetVertex(AliAODEvent* aod) const
942 const AliAODVertex* vtxAOD = aod->GetPrimaryVertex();
945 if(vtxAOD->GetNContributors()>0)
946 zvtx = vtxAOD->GetZ();
950 //_____________________________________________________________________________
951 void AliAnalysisTaskK0sBayes::Terminate(Option_t *)
954 Printf("Terminate()");
956 //=======================================================================
957 void AliAnalysisTaskK0sBayes::SelectK0s(){
962 Int_t nV0s = fOutputAOD->GetNumberOfV0s();
965 for (Int_t i=0; i!=nV0s; ++i) {
966 myV0 = (AliAODv0*) fOutputAOD->GetV0(i);
968 if(myV0->Pt()<0.1 || TMath::Abs(myV0->Eta()) > 0.8) continue; // skipping low momentum
969 Int_t pass = PassesAODCuts(myV0,fOutputAOD,0); // check for K0s
971 dMASS = myV0->MassK0Short();
972 Float_t massLambda = myV0->MassLambda();
973 Float_t massAntiLambda = myV0->MassAntiLambda();
975 if(TMath::Abs(dMASS-0.497)/0.005 < 8 && TMath::Abs(massLambda-1.115)/0.005 > 8 && TMath::Abs(massAntiLambda-1.115)/0.005 > 8){
976 AliAODTrack *iT=(AliAODTrack*) myV0->GetDaughter(0); // positive
977 AliAODTrack *jT=(AliAODTrack*) myV0->GetDaughter(1); // negative
979 iT=(AliAODTrack*) myV0->GetDaughter(1); // positive
980 jT=(AliAODTrack*) myV0->GetDaughter(0); // negative
982 fPhiK0s[fNK0s] = myV0->Phi();
983 fPtK0s[fNK0s] = myV0->Pt();
984 fIpiP[fNK0s] = FindDaugheterIndex(iT);
985 fIpiN[fNK0s] = FindDaugheterIndex(jT);
986 fMassKs[fNK0s] = dMASS;
987 if(fIpiP[fNK0s] > -1 && fIpiN[fNK0s] > -1)
995 Int_t nAODTracks = fOutputAOD->GetNumberOfTracks();
996 for(Int_t iT = 0; iT < nAODTracks; iT++) { // loop on the tracks
997 AliAODTrack* aodTrack = fOutputAOD->GetTrack(iT);
1003 Bool_t trkFlag = aodTrack->TestFilterBit(fFilterBit);
1005 if ((TMath::Abs(aodTrack->Eta()) > fEtaCut) || (aodTrack->Pt() < fMinPt) || (aodTrack->GetTPCNcls() < fNcluster) || !trkFlag){
1009 Double_t b[2] = {-99., -99.};
1010 Double_t bCov[3] = {-99., -99., -99.};
1011 if (!aodTrack->PropagateToDCA(fOutputAOD->GetPrimaryVertex(), fOutputAOD->GetMagneticField(), 100., b, bCov))
1014 if(TMath::Abs(b[0]) < 0.3/aodTrack->Pt()) continue;
1017 Int_t charge = aodTrack->Charge();
1019 fIPiPos[fNpiPos] = iT;
1023 fIPiNeg[fNpiNeg] = iT;
1028 for(Int_t i=0;i < fNpiPos;i++){
1029 AliAODTrack *pip = fOutputAOD->GetTrack(fIPiPos[i]);
1030 AliESDtrack pipE(pip);
1032 for(Int_t j=0;j < fNpiNeg;j++){
1033 AliAODTrack *pin = fOutputAOD->GetTrack(fIPiNeg[j]);
1034 AliESDtrack pinE(pin);
1036 Double_t xn, xp, mindist=pinE.GetDCA(&pipE,fOutputAOD->GetMagneticField(),xn,xp);
1040 pipE.GetPxPyPzAt(xp,fOutputAOD->GetMagneticField(),pPos);
1041 pinE.GetPxPyPzAt(xn,fOutputAOD->GetMagneticField(),pNeg);
1043 Float_t length = (xp+xn)*0.5;
1045 Float_t pxs = pPos[0] + pNeg[0];
1046 Float_t pys = pPos[1] + pNeg[1];
1047 Float_t pzs = pPos[2] + pNeg[2];
1048 Float_t es = TMath::Sqrt(pPos[0]*pPos[0] + pPos[1]*pPos[1] + pPos[2]*pPos[2] + 0.13957*0.13957) + TMath::Sqrt(pNeg[0]*pNeg[0] + pNeg[1]*pNeg[1] + pNeg[2]*pNeg[2] + 0.13957*0.13957);
1050 Float_t pt = TMath::Sqrt(pxs*pxs + pys*pys);
1051 Float_t phi = TMath::ATan2(pys,pxs);
1052 Float_t mass = TMath::Sqrt(es*es - pt*pt - pzs*pzs);
1054 // if(length > 1) printf("length = %f - distance = %f - mass= %f\n",length,mindist,mass);
1056 if(mindist < 0.4&& length > 0.7 && length < 25){
1057 Float_t esL = TMath::Sqrt(pPos[0]*pPos[0] + pPos[1]*pPos[1] + pPos[2]*pPos[2] + 0.938*0.938) + TMath::Sqrt(pNeg[0]*pNeg[0] + pNeg[1]*pNeg[1] + pNeg[2]*pNeg[2] + 0.13957*0.13957);
1058 Float_t esAL = TMath::Sqrt(pPos[0]*pPos[0] + pPos[1]*pPos[1] + pPos[2]*pPos[2] + 0.13957*0.13957) + TMath::Sqrt(pNeg[0]*pNeg[0] + pNeg[1]*pNeg[1] + pNeg[2]*pNeg[2] + 0.938*0.938);
1060 Float_t massaL = TMath::Sqrt(esL*esL - pt*pt - pzs*pzs);
1061 Float_t massaAL = TMath::Sqrt(esAL*esAL - pt*pt - pzs*pzs);
1063 if(TMath::Abs(mass-0.497)/0.005 < 8 && massaL > 1.15 && massaAL > 1.15){
1064 fPhiK0s[fNK0s] = phi;
1066 fIpiP[fNK0s] =fIPiPos[i] ;
1067 fIpiN[fNK0s] = fIPiNeg[j];
1068 fMassKs[fNK0s] = mass;
1077 //=======================================================================
1078 Int_t AliAnalysisTaskK0sBayes::PassesAODCuts(AliAODv0 *myV0, AliAODEvent *tAOD,Int_t specie)
1080 if (myV0->GetOnFlyStatus() ) return 0;
1082 //the following is needed in order to evualuate track-quality
1083 AliAODTrack *iT, *jT;
1084 AliAODVertex *vV0s = myV0->GetSecondaryVtx();
1085 Double_t pos[3],cov[6];
1087 vV0s->GetCovarianceMatrix(cov);
1088 const AliESDVertex vESD(pos,cov,100.,100);
1092 iT=(AliAODTrack*) myV0->GetDaughter(0);
1093 if(iT->Charge()>0) {
1100 iT=(AliAODTrack*) myV0->GetDaughter(iPos); // positive
1102 jT=(AliAODTrack*) myV0->GetDaughter(iNeg); // negative
1104 Bool_t trkFlag = iT->TestFilterBit(fFilterBit);
1105 if(!trkFlag) return 0;
1106 Bool_t trkFlag2 = jT->TestFilterBit(fFilterBit);
1107 if(!trkFlag2) return 0;
1109 Double_t pvertex[3];
1110 pvertex[0]=tAOD->GetPrimaryVertex()->GetX();
1111 pvertex[1]=tAOD->GetPrimaryVertex()->GetY();
1112 pvertex[2]=tAOD->GetPrimaryVertex()->GetZ();
1114 Double_t dDL=myV0->DecayLengthV0( pvertex );
1115 if(dDL < 0.5 || dDL > 25) return 0;
1117 Double_t dDCA=myV0->DcaV0Daughters();
1118 if(dDCA >0.5) return 0;
1120 Double_t dCTP=myV0->CosPointingAngle( pvertex );
1121 if(dCTP < -1) return 0;
1123 // AliESDtrack ieT( iT );
1124 // Double_t dD0P=ieT.GetD(pvertex[0],pvertex[1],tAOD->GetMagneticField());
1125 // if(TMath::Abs(dD0P) < 0]) return 0;
1127 // AliESDtrack jeT( jT );
1128 // Double_t dD0M=jeT.GetD(pvertex[0],pvertex[1],tAOD->GetMagneticField());
1129 // if(TMath::Abs(dD0M) < 0) return 0;
1131 // Double_t dD0D0=dD0P*dD0M;
1132 // if(dD0D0>0) return 0;
1134 // Double_t dETA=myV0->Eta();
1135 // if(dETA <-0.8) return 0;
1136 // if(dETA >0.8) return 0;
1138 // Double_t dQT=myV0->PtArmV0();
1139 // if(specie==0) if(dQT<???) return 0;
1141 Double_t dALPHA=myV0->AlphaV0(); // AlphaV0 -> AODRecoDecat::Alpha -> return 1.-2./(1.+QlProng(0)/QlProng(1));
1142 if(myV0->ChargeProng(iPos)<0) dALPHA = -dALPHA; // protects for a change in convention
1144 if(specie==1 && dALPHA<0) return 2; // antilambda
1145 return 1; // K0s or lambda
1147 //-------------------------------------------------------------------------
1148 Int_t AliAnalysisTaskK0sBayes::FindDaugheterIndex(AliAODTrack *trk){
1149 Int_t ntrack = fOutputAOD->GetNumberOfTracks();
1151 for(Int_t i=0;i < ntrack;i++){ // loop on tracks
1152 AliAODTrack* track = fOutputAOD->GetTrack(i);
1153 if(track == trk) return i;
1156 printf("Daughter for %p not found\n",trk);
1159 //-------------------------------------------------------------------------
1160 Int_t AliAnalysisTaskK0sBayes::IsChannelValid(Float_t etaAbs){
1161 if(!fIsMC) return 1; // used only on MC
1163 if(fTypeCol == 2){ // LHC10h or LHC11h because of TOF matching window at 3 cm
1164 Int_t channel = Int_t(4334.09 - 4758.36 * etaAbs -1989.71 * etaAbs*etaAbs + 1957.62*etaAbs*etaAbs*etaAbs);
1166 if(!(channel%20)) return 0; // 5% additional loss in MC