1 /**************************************************************************
2 * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appeuear 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 **************************************************************************/
20 // Base class for DStar Analysis
23 // The D* spectra study is done in pt bins:
24 // [0,0.5] [0.5,1] [1,2] [2,3] [3,4] [4,5] [5,6] [6,7] [7,8],
25 // [8,10],[10,12], [12,16], [16,20] and [20,24]
27 // Cuts arew centralized in AliRDHFCutsDStartoKpipi
28 // Side Band and like sign background are implemented in the macro
30 //-----------------------------------------------------------------------
33 // ERC-QGP Utrecht University - a.grelli@uu.nl,
35 // University of Heidelberg - yifei@physi.uni-heidelberg.de
37 // ERC-QGP Utrecht University - c.ivan@uu.nl,
39 //-----------------------------------------------------------------------
42 #include <TParticle.h>
45 #include <TDatabasePDG.h>
46 #include <AliAnalysisDataSlot.h>
47 #include <AliAnalysisDataContainer.h>
48 #include "AliRDHFCutsDStartoKpipi.h"
50 #include "AliMCEvent.h"
51 #include "AliAnalysisManager.h"
52 #include "AliAODMCHeader.h"
53 #include "AliAODHandler.h"
55 #include "AliAODVertex.h"
56 #include "AliAODRecoDecay.h"
57 #include "AliAODRecoDecayHF.h"
58 #include "AliAODRecoCascadeHF.h"
59 #include "AliAODRecoDecayHF2Prong.h"
60 #include "AliAnalysisVertexingHF.h"
61 #include "AliESDtrack.h"
62 #include "AliAODMCParticle.h"
63 #include "AliNormalizationCounter.h"
64 #include "AliAODEvent.h"
65 #include "AliAnalysisTaskSEDStarSpectra.h"
67 ClassImp(AliAnalysisTaskSEDStarSpectra)
69 //__________________________________________________________________________
70 AliAnalysisTaskSEDStarSpectra::AliAnalysisTaskSEDStarSpectra():
87 fDoImpParDstar(kFALSE),
96 for(Int_t i=0;i<5;i++) fHistMassPtImpParTCDs[i]=0;
98 //___________________________________________________________________________
99 AliAnalysisTaskSEDStarSpectra::AliAnalysisTaskSEDStarSpectra(const Char_t* name, AliRDHFCutsDStartoKpipi* cuts) :
100 AliAnalysisTaskSE(name),
116 fDoImpParDstar(kFALSE),
118 fLowerImpPar(-2000.),
119 fHigherImpPar(2000.),
123 // Constructor. Initialization of Inputs and Outputs
125 Info("AliAnalysisTaskSEDStarSpectra","Calling Constructor");
129 DefineOutput(1,TList::Class()); //conters
130 DefineOutput(2,TList::Class()); //All Entries output
131 DefineOutput(3,TList::Class()); //3sigma PID output
132 DefineOutput(4,AliRDHFCutsDStartoKpipi::Class()); //My private output
133 DefineOutput(5,AliNormalizationCounter::Class()); // normalization
136 //___________________________________________________________________________
137 AliAnalysisTaskSEDStarSpectra::~AliAnalysisTaskSEDStarSpectra() {
141 Info("~AliAnalysisTaskSEDStarSpectra","Calling Destructor");
149 for(Int_t i=0; i<5; i++){
150 delete fHistMassPtImpParTCDs[i];
153 //_________________________________________________
154 void AliAnalysisTaskSEDStarSpectra::Init(){
159 if(fDebug > 1) printf("AnalysisTaskSEDStarSpectra::Init() \n");
160 AliRDHFCutsDStartoKpipi* copyfCuts=new AliRDHFCutsDStartoKpipi(*fCuts);
162 PostData(4,copyfCuts);
167 //_________________________________________________
168 void AliAnalysisTaskSEDStarSpectra::UserExec(Option_t *)
172 Error("UserExec","NO EVENT FOUND!");
178 AliAODEvent* aodEvent = dynamic_cast<AliAODEvent*>(fInputEvent);
179 TClonesArray *arrayDStartoD0pi=0;
183 if(!aodEvent && AODEvent() && IsStandardAOD()) {
184 // In case there is an AOD handler writing a standard AOD, use the AOD
185 // event in memory rather than the input (ESD) event.
186 aodEvent = dynamic_cast<AliAODEvent*> (AODEvent());
187 // in this case the braches in the deltaAOD (AliAOD.VertexingHF.root)
188 // have to taken from the AOD event hold by the AliAODExtension
189 AliAODHandler* aodHandler = (AliAODHandler*)
190 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
191 if(aodHandler->GetExtensions()) {
192 AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
193 AliAODEvent *aodFromExt = ext->GetAOD();
194 arrayDStartoD0pi=(TClonesArray*)aodFromExt->GetList()->FindObject("Dstar");
197 arrayDStartoD0pi=(TClonesArray*)aodEvent->GetList()->FindObject("Dstar");
200 // fix for temporary bug in ESDfilter
201 // the AODs with null vertex pointer didn't pass the PhysSel
202 if(!aodEvent->GetPrimaryVertex() || TMath::Abs(aodEvent->GetMagneticField())<0.001) return;
205 fCounter->StoreEvent(aodEvent,fCuts,fUseMCInfo);
207 // trigger class for PbPb C0SMH-B-NOPF-ALLNOTRD
208 TString trigclass=aodEvent->GetFiredTriggerClasses();
209 if(trigclass.Contains("C0SMH-B-NOPF-ALLNOTRD")||trigclass.Contains("C0SMH-B-NOPF-ALL")) fCEvents->Fill(5);
211 if(!fCuts->IsEventSelected(aodEvent)) {
212 if(fCuts->GetWhyRejection()==6) // rejected for Z vertex
217 Bool_t isEvSel=fCuts->IsEventSelected(aodEvent);
222 // AliInfo(Form("Event %d",fEvents));
223 //if (fEvents%10000 ==0) AliInfo(Form("Event %d",fEvents));
225 // counters for efficiencies
226 Int_t icountReco = 0;
228 //D* and D0 prongs needed to MatchToMC method
229 Int_t pdgDgDStartoD0pi[2]={421,211};
230 Int_t pdgDgD0toKpi[2]={321,211};
232 // AOD primary vertex
233 AliAODVertex *vtx1 = (AliAODVertex*)aodEvent->GetPrimaryVertex();
235 if(vtx1->GetNContributors()<1) return;
238 if (!arrayDStartoD0pi){
239 AliInfo("Could not find array of HF vertices, skipping the event");
241 }else AliDebug(2, Form("Found %d vertices",arrayDStartoD0pi->GetEntriesFast()));
243 Int_t nSelectedAna =0;
244 Int_t nSelectedProd =0;
246 // loop over the tracks to search for candidates soft pion
247 for (Int_t iDStartoD0pi = 0; iDStartoD0pi<arrayDStartoD0pi->GetEntriesFast(); iDStartoD0pi++) {
249 // D* candidates and D0 from D*
250 AliAODRecoCascadeHF* dstarD0pi = (AliAODRecoCascadeHF*)arrayDStartoD0pi->At(iDStartoD0pi);
251 if(!dstarD0pi->GetSecondaryVtx()) continue;
252 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)dstarD0pi->Get2Prong();
253 if (!theD0particle) continue;
256 TClonesArray *mcArray = 0;
257 AliAODMCHeader *mcHeader=0;
259 Bool_t isPrimary=kTRUE;
261 Float_t trueImpParXY=0.;
265 //MC array need for maching
266 mcArray = dynamic_cast<TClonesArray*>(aodEvent->FindListObject(AliAODMCParticle::StdBranchName()));
268 AliError("Could not find Monte-Carlo in AOD");
272 mcHeader = (AliAODMCHeader*)aodEvent->GetList()->FindObject(AliAODMCHeader::StdBranchName());
274 printf("AliAnalysisTaskSEDplus::UserExec: MC header branch not found!\n");
277 // find associated MC particle for D* ->D0toKpi
278 Int_t mcLabel = dstarD0pi->MatchToMC(413,421,pdgDgDStartoD0pi,pdgDgD0toKpi,mcArray);
281 AliAODMCParticle *partDSt = (AliAODMCParticle*)mcArray->At(mcLabel);
282 Int_t checkOrigin = CheckOrigin(mcArray,partDSt);
283 if(checkOrigin==5) isPrimary=kFALSE;
284 AliAODMCParticle *dg0 = (AliAODMCParticle*)mcArray->At(partDSt->GetDaughter(0));
285 // AliAODMCParticle *dg01 = (AliAODMCParticle*)mcArray->At(dg0->GetDaughter(0));
286 pdgCode=TMath::Abs(partDSt->GetPdgCode());
288 trueImpParXY=GetTrueImpactParameterD0(mcHeader,mcArray,dg0)*1000.;
296 if(pdgCode==-1) AliDebug(2,"No particle assigned! check\n");
298 Int_t ptbin=fCuts->PtBin(dstarD0pi->Pt());
300 // quality selction on tracks and region of interest
301 Int_t isTkSelected = fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kTracks); // quality cuts on tracks
302 if(!isTkSelected) continue;
304 if(!fCuts->IsInFiducialAcceptance(dstarD0pi->Pt(),dstarD0pi->YDstar())) continue;
307 //histos for impact par studies - D0!!!
308 Double_t ptCand = dstarD0pi->Get2Prong()->Pt();
309 Double_t invMass=dstarD0pi->InvMassD0();
310 Double_t impparXY=dstarD0pi->Get2Prong()->ImpParXY()*10000.;
312 Double_t arrayForSparse[3]={invMass,ptCand,impparXY};
313 Double_t arrayForSparseTrue[3]={invMass,ptCand,trueImpParXY};
315 // set the D0 search window bin by bin - useful to calculate side band bkg
401 // check that we are close to signal in the DeltaM - here to save time for PbPb
402 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
403 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
404 Double_t invmassDelta = dstarD0pi->DeltaInvMass();
406 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))>fPeakWindow) continue;
407 Int_t isSelected=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate,aodEvent); //selected
410 if(fDoImpParDstar && isSelected){
411 fHistMassPtImpParTCDs[0]->Fill(arrayForSparse);
412 if(isPrimary) fHistMassPtImpParTCDs[1]->Fill(arrayForSparse);
414 fHistMassPtImpParTCDs[2]->Fill(arrayForSparse);
415 fHistMassPtImpParTCDs[3]->Fill(arrayForSparseTrue);
419 if (fDoDStarVsY && isSelected){
420 ((TH3F*) (fOutputPID->FindObject("deltamassVsyVsPt")))->Fill(dstarD0pi->DeltaInvMass(),dstarD0pi->YDstar(),dstarD0pi->Pt() );
425 FillSpectrum(dstarD0pi,isDStar,fCuts,isSelected,fOutputPID);
426 SideBandBackground(dstarD0pi,fCuts,isSelected, fOutputPID);
427 //WrongSignForDStar(dstarD0pi,fCuts,fOutputPID);
429 //swich off the PID selection
430 fCuts->SetUsePID(kFALSE);
431 Int_t isSelectedNoPID=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate, aodEvent); //selected
432 fCuts->SetUsePID(kTRUE);
434 FillSpectrum(dstarD0pi,isDStar,fCuts,isSelectedNoPID,fOutputAll);
435 // SideBandBackground(dstarD0pi,fCuts,isSelectedNoPID, fOutputAll);
437 // rare D search ------
439 TLorentzVector lorentzTrack1(0,0,0,0); // lorentz 4 vector
440 TLorentzVector lorentzTrack2(0,0,0,0); // lorentz 4 vector
442 for (Int_t i=0; i<aodEvent->GetNumberOfTracks(); i++){
444 AliAODTrack* aodTrack = dynamic_cast<AliAODTrack*>(aodEvent->GetTrack(i));
445 if(!aodTrack) AliFatal("Not a standard AOD");
447 if(dstarD0pi->Charge() == aodTrack->Charge()) continue;
448 if((!(aodTrack->GetStatus()&AliESDtrack::kITSrefit)|| (!(aodTrack->GetStatus()&AliESDtrack::kTPCrefit)))) continue;
449 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))>0.02) continue;
452 Double_t mass = TDatabasePDG::Instance()->GetParticle(211)->Mass();
454 lorentzTrack1.SetPxPyPzE( dstarD0pi->Px(),dstarD0pi->Py(), dstarD0pi->Pz(), dstarD0pi->E(413) );
455 lorentzTrack2.SetPxPyPzE( aodTrack->Px(),aodTrack->Py(), aodTrack->Pz(),aodTrack->E(mass) );
458 Double_t d1mass = ((lorentzTrack1+lorentzTrack2).M());
459 //mass difference - at 0.4117 and 0.4566
460 fDeltaMassD1->Fill(d1mass-dstarD0pi->InvMassDstarKpipi());
465 fTrueDiff2->Fill(dstarD0pi->Pt(),dstarD0pi->DeltaInvMass());
470 fCounter->StoreCandidates(aodEvent,nSelectedProd,kTRUE);
471 fCounter->StoreCandidates(aodEvent,nSelectedAna,kFALSE);
473 AliDebug(2, Form("Found %i Reco particles that are D*!!",icountReco));
476 PostData(2,fOutputAll);
477 PostData(3,fOutputPID);
478 PostData(5,fCounter);
481 //________________________________________ terminate ___________________________
482 void AliAnalysisTaskSEDStarSpectra::Terminate(Option_t*)
484 // The Terminate() function is the last function to be called during
485 // a query. It always runs on the client, it can be used to present
486 // the results graphically or save the results to file.
488 //Info("Terminate","");
489 AliAnalysisTaskSE::Terminate();
491 fOutput = dynamic_cast<TList*> (GetOutputData(1));
493 printf("ERROR: fOutput not available\n");
497 fCEvents = dynamic_cast<TH1F*>(fOutput->FindObject("fCEvents"));
498 fDeltaMassD1 = dynamic_cast<TH1F*>(fOutput->FindObject("fDeltaMassD1"));
499 fTrueDiff2 = dynamic_cast<TH2F*>(fOutput->FindObject("fTrueDiff2"));
501 fOutputAll = dynamic_cast<TList*> (GetOutputData(1));
503 printf("ERROR: fOutputAll not available\n");
506 fOutputPID = dynamic_cast<TList*> (GetOutputData(2));
508 printf("ERROR: fOutputPID not available\n");
515 //___________________________________________________________________________
516 void AliAnalysisTaskSEDStarSpectra::UserCreateOutputObjects() {
518 Info("UserCreateOutputObjects","CreateOutputObjects of task %s\n", GetName());
522 fOutput = new TList();
524 fOutput->SetName("chist0");
526 fOutputAll = new TList();
527 fOutputAll->SetOwner();
528 fOutputAll->SetName("listAll");
530 fOutputPID = new TList();
531 fOutputPID->SetOwner();
532 fOutputPID->SetName("listPID");
537 //Counter for Normalization
538 fCounter = new AliNormalizationCounter(Form("%s",GetOutputSlot(5)->GetContainer()->GetName()));
541 if(fDoImpParDstar) CreateImpactParameterHistos();
544 PostData(2,fOutputAll);
545 PostData(3,fOutputPID);
549 //___________________________________ hiostograms _______________________________________
550 void AliAnalysisTaskSEDStarSpectra::DefineHistograms(){
553 fCEvents = new TH1F("fCEvents","conter",11,0,11);
554 fCEvents->SetStats(kTRUE);
555 fCEvents->GetXaxis()->SetTitle("1");
556 fCEvents->GetYaxis()->SetTitle("counts");
557 fOutput->Add(fCEvents);
559 fTrueDiff2 = new TH2F("DiffDstar_pt","True Reco diff vs pt",200,0,15,900,0,0.3);
560 fOutput->Add(fTrueDiff2);
562 fDeltaMassD1 = new TH1F("DeltaMassD1","delta mass d1",600,0,0.8);
563 fOutput->Add(fDeltaMassD1);
565 const Int_t nhist=14;
566 TString nameMass=" ", nameSgn=" ", nameBkg=" ";
568 for(Int_t i=-2;i<nhist;i++){
569 nameMass="histDeltaMass_";
571 nameSgn="histDeltaSgn_";
573 nameBkg="histDeltaBkg_";
577 nameMass="histDeltaMass";
578 nameSgn="histDeltaSgn";
579 nameBkg="histDeltaBkg";
582 TH1F* spectrumMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} invariant mass; #DeltaM [GeV/c^{2}]; Entries",700,0.13,0.2);
583 TH1F* spectrumSgn = new TH1F(nameSgn.Data(), "D^{*}-D^{0} Signal invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",700,0.13,0.2);
584 TH1F* spectrumBkg = new TH1F(nameBkg.Data(), "D^{*}-D^{0} Background invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",700,0.13,0.2);
586 nameMass="histD0Mass_";
588 nameSgn="histD0Sgn_";
590 nameBkg="histD0Bkg_";
594 nameMass="histD0Mass";
599 TH1F* spectrumD0Mass = new TH1F(nameMass.Data(),"D^{0} invariant mass; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
600 TH1F* spectrumD0Sgn = new TH1F(nameSgn.Data(), "D^{0} Signal invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
601 TH1F* spectrumD0Bkg = new TH1F(nameBkg.Data(), "D^{0} Background invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
603 nameMass="histDstarMass_";
605 nameSgn="histDstarSgn_";
607 nameBkg="histDstarBkg_";
611 nameMass="histDstarMass";
612 nameSgn="histDstarSgn";
613 nameBkg="histDstarBkg";
616 TH1F* spectrumDstarMass = new TH1F(nameMass.Data(),"D^{*} invariant mass; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
617 TH1F* spectrumDstarSgn = new TH1F(nameSgn.Data(), "D^{*} Signal invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
618 TH1F* spectrumDstarBkg = new TH1F(nameBkg.Data(), "D^{*} Background invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
620 nameMass="histSideBandMass_";
623 nameMass="histSideBandMass";
626 TH1F* spectrumSideBandMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} sideband mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
628 nameMass="histWrongSignMass_";
631 nameMass="histWrongSignMass";
634 TH1F* spectrumWrongSignMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} wrongsign mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
637 spectrumMass->Sumw2();
638 spectrumSgn->Sumw2();
639 spectrumBkg->Sumw2();
641 spectrumMass->SetLineColor(6);
642 spectrumSgn->SetLineColor(2);
643 spectrumBkg->SetLineColor(4);
645 spectrumMass->SetMarkerStyle(20);
646 spectrumSgn->SetMarkerStyle(20);
647 spectrumBkg->SetMarkerStyle(20);
648 spectrumMass->SetMarkerSize(0.6);
649 spectrumSgn->SetMarkerSize(0.6);
650 spectrumBkg->SetMarkerSize(0.6);
651 spectrumMass->SetMarkerColor(6);
652 spectrumSgn->SetMarkerColor(2);
653 spectrumBkg->SetMarkerColor(4);
655 spectrumD0Mass->Sumw2();
656 spectrumD0Sgn->Sumw2();
657 spectrumD0Bkg->Sumw2();
659 spectrumD0Mass->SetLineColor(6);
660 spectrumD0Sgn->SetLineColor(2);
661 spectrumD0Bkg->SetLineColor(4);
663 spectrumD0Mass->SetMarkerStyle(20);
664 spectrumD0Sgn->SetMarkerStyle(20);
665 spectrumD0Bkg->SetMarkerStyle(20);
666 spectrumD0Mass->SetMarkerSize(0.6);
667 spectrumD0Sgn->SetMarkerSize(0.6);
668 spectrumD0Bkg->SetMarkerSize(0.6);
669 spectrumD0Mass->SetMarkerColor(6);
670 spectrumD0Sgn->SetMarkerColor(2);
671 spectrumD0Bkg->SetMarkerColor(4);
673 spectrumDstarMass->Sumw2();
674 spectrumDstarSgn->Sumw2();
675 spectrumDstarBkg->Sumw2();
677 spectrumDstarMass->SetLineColor(6);
678 spectrumDstarSgn->SetLineColor(2);
679 spectrumDstarBkg->SetLineColor(4);
681 spectrumDstarMass->SetMarkerStyle(20);
682 spectrumDstarSgn->SetMarkerStyle(20);
683 spectrumDstarBkg->SetMarkerStyle(20);
684 spectrumDstarMass->SetMarkerSize(0.6);
685 spectrumDstarSgn->SetMarkerSize(0.6);
686 spectrumDstarBkg->SetMarkerSize(0.6);
687 spectrumDstarMass->SetMarkerColor(6);
688 spectrumDstarSgn->SetMarkerColor(2);
689 spectrumDstarBkg->SetMarkerColor(4);
691 spectrumSideBandMass->Sumw2();
692 spectrumSideBandMass->SetLineColor(4);
693 spectrumSideBandMass->SetMarkerStyle(20);
694 spectrumSideBandMass->SetMarkerSize(0.6);
695 spectrumSideBandMass->SetMarkerColor(4);
697 spectrumWrongSignMass->Sumw2();
698 spectrumWrongSignMass->SetLineColor(4);
699 spectrumWrongSignMass->SetMarkerStyle(20);
700 spectrumWrongSignMass->SetMarkerSize(0.6);
701 spectrumWrongSignMass->SetMarkerColor(4);
703 TH1F* allMass = (TH1F*)spectrumMass->Clone();
704 TH1F* allSgn = (TH1F*)spectrumSgn->Clone();
705 TH1F* allBkg = (TH1F*)spectrumBkg->Clone();
707 TH1F* pidMass = (TH1F*)spectrumMass->Clone();
708 TH1F* pidSgn = (TH1F*)spectrumSgn->Clone();
709 TH1F* pidBkg = (TH1F*)spectrumBkg->Clone();
711 fOutputAll->Add(allMass);
712 fOutputAll->Add(allSgn);
713 fOutputAll->Add(allBkg);
715 fOutputPID->Add(pidMass);
716 fOutputPID->Add(pidSgn);
717 fOutputPID->Add(pidBkg);
719 TH1F* allD0Mass = (TH1F*)spectrumD0Mass->Clone();
720 TH1F* allD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
721 TH1F* allD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
723 TH1F* pidD0Mass = (TH1F*)spectrumD0Mass->Clone();
724 TH1F* pidD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
725 TH1F* pidD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
727 fOutputAll->Add(allD0Mass);
728 fOutputAll->Add(allD0Sgn);
729 fOutputAll->Add(allD0Bkg);
731 fOutputPID->Add(pidD0Mass);
732 fOutputPID->Add(pidD0Sgn);
733 fOutputPID->Add(pidD0Bkg);
735 TH1F* allDstarMass = (TH1F*)spectrumDstarMass->Clone();
736 TH1F* allDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
737 TH1F* allDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
739 TH1F* pidDstarMass = (TH1F*)spectrumDstarMass->Clone();
740 TH1F* pidDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
741 TH1F* pidDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
743 fOutputAll->Add(allDstarMass);
744 fOutputAll->Add(allDstarSgn);
745 fOutputAll->Add(allDstarBkg);
747 fOutputPID->Add(pidDstarMass);
748 fOutputPID->Add(pidDstarSgn);
749 fOutputPID->Add(pidDstarBkg);
751 TH1F* allSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
752 TH1F* pidSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
754 fOutputAll->Add(allSideBandMass);
755 fOutputPID->Add(pidSideBandMass);
757 TH1F* allWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
758 TH1F* pidWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
760 fOutputAll->Add(allWrongSignMass);
761 fOutputPID->Add(pidWrongSignMass);
770 TH1F* ptspectrumMass = new TH1F(nameMass.Data(),"D^{*} p_{T}; p_{T} [GeV]; Entries",200,0,10);
771 TH1F* ptspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
772 TH1F* ptspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
774 ptspectrumMass->Sumw2();
775 ptspectrumSgn->Sumw2();
776 ptspectrumBkg->Sumw2();
778 ptspectrumMass->SetLineColor(6);
779 ptspectrumSgn->SetLineColor(2);
780 ptspectrumBkg->SetLineColor(4);
782 ptspectrumMass->SetMarkerStyle(20);
783 ptspectrumSgn->SetMarkerStyle(20);
784 ptspectrumBkg->SetMarkerStyle(20);
785 ptspectrumMass->SetMarkerSize(0.6);
786 ptspectrumSgn->SetMarkerSize(0.6);
787 ptspectrumBkg->SetMarkerSize(0.6);
788 ptspectrumMass->SetMarkerColor(6);
789 ptspectrumSgn->SetMarkerColor(2);
790 ptspectrumBkg->SetMarkerColor(4);
792 TH1F* ptallMass = (TH1F*)ptspectrumMass->Clone();
793 TH1F* ptallSgn = (TH1F*)ptspectrumSgn->Clone();
794 TH1F* ptallBkg = (TH1F*)ptspectrumBkg->Clone();
796 TH1F* ptpidMass = (TH1F*)ptspectrumMass->Clone();
797 TH1F* ptpidSgn = (TH1F*)ptspectrumSgn->Clone();
798 TH1F* ptpidBkg = (TH1F*)ptspectrumBkg->Clone();
800 fOutputAll->Add(ptallMass);
801 fOutputAll->Add(ptallSgn);
802 fOutputAll->Add(ptallBkg);
804 fOutputPID->Add(ptpidMass);
805 fOutputPID->Add(ptpidSgn);
806 fOutputPID->Add(ptpidBkg);
813 TH1F* etaspectrumMass = new TH1F(nameMass.Data(),"D^{*} #eta; #eta; Entries",200,-1,1);
814 TH1F* etaspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal #eta - MC; #eta; Entries",200,-1,1);
815 TH1F* etaspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background #eta - MC; #eta; Entries",200,-1,1);
817 etaspectrumMass->Sumw2();
818 etaspectrumSgn->Sumw2();
819 etaspectrumBkg->Sumw2();
821 etaspectrumMass->SetLineColor(6);
822 etaspectrumSgn->SetLineColor(2);
823 etaspectrumBkg->SetLineColor(4);
825 etaspectrumMass->SetMarkerStyle(20);
826 etaspectrumSgn->SetMarkerStyle(20);
827 etaspectrumBkg->SetMarkerStyle(20);
828 etaspectrumMass->SetMarkerSize(0.6);
829 etaspectrumSgn->SetMarkerSize(0.6);
830 etaspectrumBkg->SetMarkerSize(0.6);
831 etaspectrumMass->SetMarkerColor(6);
832 etaspectrumSgn->SetMarkerColor(2);
833 etaspectrumBkg->SetMarkerColor(4);
835 TH1F* etaallMass = (TH1F*)etaspectrumMass->Clone();
836 TH1F* etaallSgn = (TH1F*)etaspectrumSgn->Clone();
837 TH1F* etaallBkg = (TH1F*)etaspectrumBkg->Clone();
839 TH1F* etapidMass = (TH1F*)etaspectrumMass->Clone();
840 TH1F* etapidSgn = (TH1F*)etaspectrumSgn->Clone();
841 TH1F* etapidBkg = (TH1F*)etaspectrumBkg->Clone();
843 fOutputAll->Add(etaallMass);
844 fOutputAll->Add(etaallSgn);
845 fOutputAll->Add(etaallBkg);
847 fOutputPID->Add(etapidMass);
848 fOutputPID->Add(etapidSgn);
849 fOutputPID->Add(etapidBkg);
852 TH3F* deltamassVsyVsPtPID = new TH3F("deltamassVsyVsPt", "delta mass Vs y Vs pT; #DeltaM [GeV/c^{2}]; y; p_{T} [GeV/c]", 700,0.13,0.2, 40, -1, 1, 36, 0., 36.);
853 fOutputPID->Add(deltamassVsyVsPtPID);
857 //________________________________________________________________________
858 void AliAnalysisTaskSEDStarSpectra::FillSpectrum(AliAODRecoCascadeHF *part, Int_t isDStar, AliRDHFCutsDStartoKpipi *cuts,Int_t isSel, TList *listout){
860 // Fill histos for D* spectrum
866 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
867 Double_t invmassD0 = part->InvMassD0();
868 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
871 Int_t ptbin=cuts->PtBin(part->Pt());
872 Double_t pt = part->Pt();
873 Double_t eta = part->Eta();
875 Double_t invmassDelta = part->DeltaInvMass();
876 Double_t invmassDstar = part->InvMassDstarKpipi();
879 Bool_t massInRange=kFALSE;
881 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
883 // delta M(Kpipi)-M(Kpi)
884 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))<fPeakWindow) massInRange=kTRUE;
888 fillthis="histD0Sgn_";
890 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
891 fillthis="histD0Sgn";
892 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
893 fillthis="histDstarSgn_";
895 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
896 fillthis="histDstarSgn";
897 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
898 fillthis="histDeltaSgn_";
900 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
901 fillthis="histDeltaSgn";
902 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
905 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
907 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
911 fillthis="histD0Bkg_";
913 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
914 fillthis="histD0Bkg";
915 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
916 fillthis="histDstarBkg_";
918 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
919 fillthis="histDstarBkg";
920 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
921 fillthis="histDeltaBkg_";
923 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
924 fillthis="histDeltaBkg";
925 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
928 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
930 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
934 //no MC info, just cut selection
935 fillthis="histD0Mass_";
937 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
938 fillthis="histD0Mass";
939 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
940 fillthis="histDstarMass_";
942 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
943 fillthis="histDstarMass";
944 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
945 fillthis="histDeltaMass_";
947 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
948 fillthis="histDeltaMass";
949 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
953 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
955 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
960 //______________________________ side band background for D*___________________________________
961 void AliAnalysisTaskSEDStarSpectra::SideBandBackground(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, Int_t isSel, TList *listout){
963 // D* side band background method. Two side bands, in M(Kpi) are taken at ~6 sigmas
964 // (expected detector resolution) on the left and right frm the D0 mass. Each band
965 // has a width of ~5 sigmas. Two band needed for opening angle considerations
969 Int_t ptbin=cuts->PtBin(part->Pt());
971 // select the side bands intervall
972 Double_t invmassD0 = part->InvMassD0();
973 if(TMath::Abs(invmassD0-1.865)>4*fD0Window && TMath::Abs(invmassD0-1.865)<8*fD0Window){
976 Double_t invmassDelta = part->DeltaInvMass();
979 fillthis="histSideBandMass_";
981 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
982 fillthis="histSideBandMass";
983 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
987 //________________________________________________________________________________________________________________
988 void AliAnalysisTaskSEDStarSpectra::WrongSignForDStar(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, TList *listout){
990 // assign the wrong charge to the soft pion to create background
992 Int_t ptbin=cuts->PtBin(part->Pt());
994 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
995 Double_t invmassD0 = part->InvMassD0();
996 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
998 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)part->Get2Prong();
1000 Int_t okD0WrongSign;
1001 Double_t wrongMassD0=0.;
1003 Int_t isSelected=cuts->IsSelected(part,AliRDHFCuts::kCandidate); //selected
1010 //if is D*+ than assume D0bar
1011 if(part->Charge()>0 && (isSelected ==1)) {
1015 // assign the wrong mass in case the cuts return both D0 and D0bar
1016 if(part->Charge()>0 && (isSelected ==3)) {
1021 if(okD0WrongSign!=0){
1022 wrongMassD0 = theD0particle->InvMassD0();
1023 }else if(okD0WrongSign==0){
1024 wrongMassD0 = theD0particle->InvMassD0bar();
1027 if(TMath::Abs(wrongMassD0-1.865)<fD0Window){
1029 // wrong D* inv mass
1031 if (part->Charge()>0){
1032 e[0]=theD0particle->EProng(0,321);
1033 e[1]=theD0particle->EProng(1,211);
1035 e[0]=theD0particle->EProng(0,211);
1036 e[1]=theD0particle->EProng(1,321);
1038 e[2]=part->EProng(0,211);
1040 Double_t esum = e[0]+e[1]+e[2];
1041 Double_t pds = part->P();
1043 Double_t wrongMassDstar = TMath::Sqrt(esum*esum-pds*pds);
1045 TString fillthis="";
1046 fillthis="histWrongSignMass_";
1048 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1049 fillthis="histWrongSignMass";
1050 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1055 //-------------------------------------------------------------------------------
1056 Int_t AliAnalysisTaskSEDStarSpectra::CheckOrigin(TClonesArray* arrayMC, const AliAODMCParticle *mcPartCandidate) const {
1058 // checking whether the mother of the particles come from a charm or a bottom quark
1061 Int_t pdgGranma = 0;
1063 mother = mcPartCandidate->GetMother();
1065 Int_t abspdgGranma =0;
1066 Bool_t isFromB=kFALSE;
1069 AliAODMCParticle* mcGranma = dynamic_cast<AliAODMCParticle*>(arrayMC->At(mother));
1071 pdgGranma = mcGranma->GetPdgCode();
1072 abspdgGranma = TMath::Abs(pdgGranma);
1073 if ((abspdgGranma > 500 && abspdgGranma < 600) || (abspdgGranma > 5000 && abspdgGranma < 6000)){
1076 mother = mcGranma->GetMother();
1078 AliError("Failed casting the mother particle!");
1083 if(isFromB) return 5;
1086 //-------------------------------------------------------------------------------------
1087 Float_t AliAnalysisTaskSEDStarSpectra::GetTrueImpactParameterD0(const AliAODMCHeader *mcHeader, TClonesArray* arrayMC, const AliAODMCParticle *partDp) const {
1088 // true impact parameter calculation
1090 Double_t vtxTrue[3];
1091 mcHeader->GetVertex(vtxTrue);
1093 partDp->XvYvZv(origD);
1094 Short_t charge=partDp->Charge();
1095 Double_t pXdauTrue[3],pYdauTrue[3],pZdauTrue[3];
1096 Int_t labelFirstDau = partDp->GetDaughter(0);
1098 Int_t nDau=partDp->GetNDaughters();
1102 for(Int_t iDau=0; iDau<2; iDau++){
1103 Int_t ind = labelFirstDau+iDau;
1104 AliAODMCParticle* part = dynamic_cast<AliAODMCParticle*>(arrayMC->At(ind));
1106 AliError("Daughter particle not found in MC array");
1109 Int_t pdgCode=TMath::Abs(part->GetPdgCode());
1110 if(pdgCode==211 || pdgCode==321){
1111 pXdauTrue[theDau]=part->Px();
1112 pYdauTrue[theDau]=part->Py();
1113 pZdauTrue[theDau]=part->Pz();
1119 AliError("Wrong number of decay prongs");
1123 Double_t d0dummy[3]={0.,0.,0.};
1124 AliAODRecoDecayHF aodD0MC(vtxTrue,origD,3,charge,pXdauTrue,pYdauTrue,pZdauTrue,d0dummy);
1125 return aodD0MC.ImpParXY();
1128 //______________________________________________________-
1129 void AliAnalysisTaskSEDStarSpectra::CreateImpactParameterHistos(){
1130 // Histos for impact paramter study
1132 Int_t nbins[3]={400,200,fNImpParBins};
1133 Double_t xmin[3]={1.75,0.,fLowerImpPar};
1134 Double_t xmax[3]={1.98,20.,fHigherImpPar};
1136 fHistMassPtImpParTCDs[0]=new THnSparseF("hMassPtImpParAll",
1137 "Mass vs. pt vs.imppar - All",
1139 fHistMassPtImpParTCDs[1]=new THnSparseF("hMassPtImpParPrompt",
1140 "Mass vs. pt vs.imppar - promptD",
1142 fHistMassPtImpParTCDs[2]=new THnSparseF("hMassPtImpParBfeed",
1143 "Mass vs. pt vs.imppar - DfromB",
1145 fHistMassPtImpParTCDs[3]=new THnSparseF("hMassPtImpParTrueBfeed",
1146 "Mass vs. pt vs.true imppar -DfromB",
1148 fHistMassPtImpParTCDs[4]=new THnSparseF("hMassPtImpParBkg",
1149 "Mass vs. pt vs.imppar - backgr.",
1152 for(Int_t i=0; i<5;i++){
1153 fOutput->Add(fHistMassPtImpParTCDs[i]);