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");
128 for(Int_t i=0;i<5;i++) fHistMassPtImpParTCDs[i]=0;
130 DefineOutput(1,TList::Class()); //conters
131 DefineOutput(2,TList::Class()); //All Entries output
132 DefineOutput(3,TList::Class()); //3sigma PID output
133 DefineOutput(4,AliRDHFCutsDStartoKpipi::Class()); //My private output
134 DefineOutput(5,AliNormalizationCounter::Class()); // normalization
137 //___________________________________________________________________________
138 AliAnalysisTaskSEDStarSpectra::~AliAnalysisTaskSEDStarSpectra() {
142 Info("~AliAnalysisTaskSEDStarSpectra","Calling Destructor");
150 for(Int_t i=0; i<5; i++){
151 delete fHistMassPtImpParTCDs[i];
154 //_________________________________________________
155 void AliAnalysisTaskSEDStarSpectra::Init(){
160 if(fDebug > 1) printf("AnalysisTaskSEDStarSpectra::Init() \n");
161 AliRDHFCutsDStartoKpipi* copyfCuts=new AliRDHFCutsDStartoKpipi(*fCuts);
163 PostData(4,copyfCuts);
168 //_________________________________________________
169 void AliAnalysisTaskSEDStarSpectra::UserExec(Option_t *)
173 Error("UserExec","NO EVENT FOUND!");
179 AliAODEvent* aodEvent = dynamic_cast<AliAODEvent*>(fInputEvent);
180 TClonesArray *arrayDStartoD0pi=0;
184 if(!aodEvent && AODEvent() && IsStandardAOD()) {
185 // In case there is an AOD handler writing a standard AOD, use the AOD
186 // event in memory rather than the input (ESD) event.
187 aodEvent = dynamic_cast<AliAODEvent*> (AODEvent());
188 // in this case the braches in the deltaAOD (AliAOD.VertexingHF.root)
189 // have to taken from the AOD event hold by the AliAODExtension
190 AliAODHandler* aodHandler = (AliAODHandler*)
191 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
192 if(aodHandler->GetExtensions()) {
193 AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
194 AliAODEvent *aodFromExt = ext->GetAOD();
195 arrayDStartoD0pi=(TClonesArray*)aodFromExt->GetList()->FindObject("Dstar");
198 arrayDStartoD0pi=(TClonesArray*)aodEvent->GetList()->FindObject("Dstar");
201 // fix for temporary bug in ESDfilter
202 // the AODs with null vertex pointer didn't pass the PhysSel
203 if(!aodEvent->GetPrimaryVertex() || TMath::Abs(aodEvent->GetMagneticField())<0.001) return;
206 fCounter->StoreEvent(aodEvent,fCuts,fUseMCInfo);
208 // trigger class for PbPb C0SMH-B-NOPF-ALLNOTRD
209 TString trigclass=aodEvent->GetFiredTriggerClasses();
210 if(trigclass.Contains("C0SMH-B-NOPF-ALLNOTRD")||trigclass.Contains("C0SMH-B-NOPF-ALL")) fCEvents->Fill(5);
212 if(!fCuts->IsEventSelected(aodEvent)) {
213 if(fCuts->GetWhyRejection()==6) // rejected for Z vertex
218 Bool_t isEvSel=fCuts->IsEventSelected(aodEvent);
223 // AliInfo(Form("Event %d",fEvents));
224 //if (fEvents%10000 ==0) AliInfo(Form("Event %d",fEvents));
226 // counters for efficiencies
227 Int_t icountReco = 0;
229 //D* and D0 prongs needed to MatchToMC method
230 Int_t pdgDgDStartoD0pi[2]={421,211};
231 Int_t pdgDgD0toKpi[2]={321,211};
233 // AOD primary vertex
234 AliAODVertex *vtx1 = (AliAODVertex*)aodEvent->GetPrimaryVertex();
236 if(vtx1->GetNContributors()<1) return;
239 if (!arrayDStartoD0pi){
240 AliInfo("Could not find array of HF vertices, skipping the event");
242 }else AliDebug(2, Form("Found %d vertices",arrayDStartoD0pi->GetEntriesFast()));
244 Int_t nSelectedAna =0;
245 Int_t nSelectedProd =0;
247 // loop over the tracks to search for candidates soft pion
248 for (Int_t iDStartoD0pi = 0; iDStartoD0pi<arrayDStartoD0pi->GetEntriesFast(); iDStartoD0pi++) {
250 // D* candidates and D0 from D*
251 AliAODRecoCascadeHF* dstarD0pi = (AliAODRecoCascadeHF*)arrayDStartoD0pi->At(iDStartoD0pi);
252 if(!dstarD0pi->GetSecondaryVtx()) continue;
253 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)dstarD0pi->Get2Prong();
254 if (!theD0particle) continue;
257 TClonesArray *mcArray = 0;
258 AliAODMCHeader *mcHeader=0;
260 Bool_t isPrimary=kTRUE;
262 Float_t trueImpParXY=0.;
266 //MC array need for maching
267 mcArray = dynamic_cast<TClonesArray*>(aodEvent->FindListObject(AliAODMCParticle::StdBranchName()));
269 AliError("Could not find Monte-Carlo in AOD");
273 mcHeader = (AliAODMCHeader*)aodEvent->GetList()->FindObject(AliAODMCHeader::StdBranchName());
275 printf("AliAnalysisTaskSEDplus::UserExec: MC header branch not found!\n");
278 // find associated MC particle for D* ->D0toKpi
279 Int_t mcLabel = dstarD0pi->MatchToMC(413,421,pdgDgDStartoD0pi,pdgDgD0toKpi,mcArray);
282 AliAODMCParticle *partDSt = (AliAODMCParticle*)mcArray->At(mcLabel);
283 Int_t checkOrigin = CheckOrigin(mcArray,partDSt);
284 if(checkOrigin==5) isPrimary=kFALSE;
285 AliAODMCParticle *dg0 = (AliAODMCParticle*)mcArray->At(partDSt->GetDaughter(0));
286 // AliAODMCParticle *dg01 = (AliAODMCParticle*)mcArray->At(dg0->GetDaughter(0));
287 pdgCode=TMath::Abs(partDSt->GetPdgCode());
289 trueImpParXY=GetTrueImpactParameterD0(mcHeader,mcArray,dg0)*1000.;
297 if(pdgCode==-1) AliDebug(2,"No particle assigned! check\n");
299 Int_t ptbin=fCuts->PtBin(dstarD0pi->Pt());
301 // quality selction on tracks and region of interest
302 Int_t isTkSelected = fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kTracks); // quality cuts on tracks
303 if(!isTkSelected) continue;
305 if(!fCuts->IsInFiducialAcceptance(dstarD0pi->Pt(),dstarD0pi->YDstar())) continue;
308 //histos for impact par studies - D0!!!
309 Double_t ptCand = dstarD0pi->Get2Prong()->Pt();
310 Double_t invMass=dstarD0pi->InvMassD0();
311 Double_t impparXY=dstarD0pi->Get2Prong()->ImpParXY()*10000.;
313 Double_t arrayForSparse[3]={invMass,ptCand,impparXY};
314 Double_t arrayForSparseTrue[3]={invMass,ptCand,trueImpParXY};
316 // set the D0 search window bin by bin - useful to calculate side band bkg
402 // check that we are close to signal in the DeltaM - here to save time for PbPb
403 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
404 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
405 Double_t invmassDelta = dstarD0pi->DeltaInvMass();
407 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))>fPeakWindow) continue;
408 Int_t isSelected=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate,aodEvent); //selected
411 if(fDoImpParDstar && isSelected){
412 fHistMassPtImpParTCDs[0]->Fill(arrayForSparse);
413 if(isPrimary) fHistMassPtImpParTCDs[1]->Fill(arrayForSparse);
415 fHistMassPtImpParTCDs[2]->Fill(arrayForSparse);
416 fHistMassPtImpParTCDs[3]->Fill(arrayForSparseTrue);
420 if (fDoDStarVsY && isSelected){
421 ((TH3F*) (fOutputPID->FindObject("deltamassVsyVsPt")))->Fill(dstarD0pi->DeltaInvMass(),dstarD0pi->YDstar(),dstarD0pi->Pt() );
426 FillSpectrum(dstarD0pi,isDStar,fCuts,isSelected,fOutputPID);
427 SideBandBackground(dstarD0pi,fCuts,isSelected, fOutputPID);
428 //WrongSignForDStar(dstarD0pi,fCuts,fOutputPID);
430 //swich off the PID selection
431 fCuts->SetUsePID(kFALSE);
432 Int_t isSelectedNoPID=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate, aodEvent); //selected
433 fCuts->SetUsePID(kTRUE);
435 FillSpectrum(dstarD0pi,isDStar,fCuts,isSelectedNoPID,fOutputAll);
436 // SideBandBackground(dstarD0pi,fCuts,isSelectedNoPID, fOutputAll);
438 // rare D search ------
440 TLorentzVector lorentzTrack1(0,0,0,0); // lorentz 4 vector
441 TLorentzVector lorentzTrack2(0,0,0,0); // lorentz 4 vector
443 for (Int_t i=0; i<aodEvent->GetNumberOfTracks(); i++){
445 AliAODTrack* aodTrack = dynamic_cast<AliAODTrack*>(aodEvent->GetTrack(i));
446 if(!aodTrack) AliFatal("Not a standard AOD");
448 if(dstarD0pi->Charge() == aodTrack->Charge()) continue;
449 if((!(aodTrack->GetStatus()&AliESDtrack::kITSrefit)|| (!(aodTrack->GetStatus()&AliESDtrack::kTPCrefit)))) continue;
450 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))>0.02) continue;
453 Double_t mass = TDatabasePDG::Instance()->GetParticle(211)->Mass();
455 lorentzTrack1.SetPxPyPzE( dstarD0pi->Px(),dstarD0pi->Py(), dstarD0pi->Pz(), dstarD0pi->E(413) );
456 lorentzTrack2.SetPxPyPzE( aodTrack->Px(),aodTrack->Py(), aodTrack->Pz(),aodTrack->E(mass) );
459 Double_t d1mass = ((lorentzTrack1+lorentzTrack2).M());
460 //mass difference - at 0.4117 and 0.4566
461 fDeltaMassD1->Fill(d1mass-dstarD0pi->InvMassDstarKpipi());
466 fTrueDiff2->Fill(dstarD0pi->Pt(),dstarD0pi->DeltaInvMass());
471 fCounter->StoreCandidates(aodEvent,nSelectedProd,kTRUE);
472 fCounter->StoreCandidates(aodEvent,nSelectedAna,kFALSE);
474 AliDebug(2, Form("Found %i Reco particles that are D*!!",icountReco));
477 PostData(2,fOutputAll);
478 PostData(3,fOutputPID);
479 PostData(5,fCounter);
482 //________________________________________ terminate ___________________________
483 void AliAnalysisTaskSEDStarSpectra::Terminate(Option_t*)
485 // The Terminate() function is the last function to be called during
486 // a query. It always runs on the client, it can be used to present
487 // the results graphically or save the results to file.
489 //Info("Terminate","");
490 AliAnalysisTaskSE::Terminate();
492 fOutput = dynamic_cast<TList*> (GetOutputData(1));
494 printf("ERROR: fOutput not available\n");
498 fCEvents = dynamic_cast<TH1F*>(fOutput->FindObject("fCEvents"));
499 fDeltaMassD1 = dynamic_cast<TH1F*>(fOutput->FindObject("fDeltaMassD1"));
500 fTrueDiff2 = dynamic_cast<TH2F*>(fOutput->FindObject("fTrueDiff2"));
502 fOutputAll = dynamic_cast<TList*> (GetOutputData(1));
504 printf("ERROR: fOutputAll not available\n");
507 fOutputPID = dynamic_cast<TList*> (GetOutputData(2));
509 printf("ERROR: fOutputPID not available\n");
516 //___________________________________________________________________________
517 void AliAnalysisTaskSEDStarSpectra::UserCreateOutputObjects() {
519 Info("UserCreateOutputObjects","CreateOutputObjects of task %s\n", GetName());
523 fOutput = new TList();
525 fOutput->SetName("chist0");
527 fOutputAll = new TList();
528 fOutputAll->SetOwner();
529 fOutputAll->SetName("listAll");
531 fOutputPID = new TList();
532 fOutputPID->SetOwner();
533 fOutputPID->SetName("listPID");
538 //Counter for Normalization
539 fCounter = new AliNormalizationCounter(Form("%s",GetOutputSlot(5)->GetContainer()->GetName()));
542 if(fDoImpParDstar) CreateImpactParameterHistos();
545 PostData(2,fOutputAll);
546 PostData(3,fOutputPID);
550 //___________________________________ hiostograms _______________________________________
551 void AliAnalysisTaskSEDStarSpectra::DefineHistograms(){
554 fCEvents = new TH1F("fCEvents","conter",11,0,11);
555 fCEvents->SetStats(kTRUE);
556 fCEvents->GetXaxis()->SetTitle("1");
557 fCEvents->GetYaxis()->SetTitle("counts");
558 fOutput->Add(fCEvents);
560 fTrueDiff2 = new TH2F("DiffDstar_pt","True Reco diff vs pt",200,0,15,900,0,0.3);
561 fOutput->Add(fTrueDiff2);
563 fDeltaMassD1 = new TH1F("DeltaMassD1","delta mass d1",600,0,0.8);
564 fOutput->Add(fDeltaMassD1);
566 const Int_t nhist=14;
567 TString nameMass=" ", nameSgn=" ", nameBkg=" ";
569 for(Int_t i=-2;i<nhist;i++){
570 nameMass="histDeltaMass_";
572 nameSgn="histDeltaSgn_";
574 nameBkg="histDeltaBkg_";
578 nameMass="histDeltaMass";
579 nameSgn="histDeltaSgn";
580 nameBkg="histDeltaBkg";
583 TH1F* spectrumMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} invariant mass; #DeltaM [GeV/c^{2}]; Entries",700,0.13,0.2);
584 TH1F* spectrumSgn = new TH1F(nameSgn.Data(), "D^{*}-D^{0} Signal invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",700,0.13,0.2);
585 TH1F* spectrumBkg = new TH1F(nameBkg.Data(), "D^{*}-D^{0} Background invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",700,0.13,0.2);
587 nameMass="histD0Mass_";
589 nameSgn="histD0Sgn_";
591 nameBkg="histD0Bkg_";
595 nameMass="histD0Mass";
600 TH1F* spectrumD0Mass = new TH1F(nameMass.Data(),"D^{0} invariant mass; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
601 TH1F* spectrumD0Sgn = new TH1F(nameSgn.Data(), "D^{0} Signal invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
602 TH1F* spectrumD0Bkg = new TH1F(nameBkg.Data(), "D^{0} Background invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
604 nameMass="histDstarMass_";
606 nameSgn="histDstarSgn_";
608 nameBkg="histDstarBkg_";
612 nameMass="histDstarMass";
613 nameSgn="histDstarSgn";
614 nameBkg="histDstarBkg";
617 TH1F* spectrumDstarMass = new TH1F(nameMass.Data(),"D^{*} invariant mass; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
618 TH1F* spectrumDstarSgn = new TH1F(nameSgn.Data(), "D^{*} Signal invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
619 TH1F* spectrumDstarBkg = new TH1F(nameBkg.Data(), "D^{*} Background invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
621 nameMass="histSideBandMass_";
624 nameMass="histSideBandMass";
627 TH1F* spectrumSideBandMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} sideband mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
629 nameMass="histWrongSignMass_";
632 nameMass="histWrongSignMass";
635 TH1F* spectrumWrongSignMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} wrongsign mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
638 spectrumMass->Sumw2();
639 spectrumSgn->Sumw2();
640 spectrumBkg->Sumw2();
642 spectrumMass->SetLineColor(6);
643 spectrumSgn->SetLineColor(2);
644 spectrumBkg->SetLineColor(4);
646 spectrumMass->SetMarkerStyle(20);
647 spectrumSgn->SetMarkerStyle(20);
648 spectrumBkg->SetMarkerStyle(20);
649 spectrumMass->SetMarkerSize(0.6);
650 spectrumSgn->SetMarkerSize(0.6);
651 spectrumBkg->SetMarkerSize(0.6);
652 spectrumMass->SetMarkerColor(6);
653 spectrumSgn->SetMarkerColor(2);
654 spectrumBkg->SetMarkerColor(4);
656 spectrumD0Mass->Sumw2();
657 spectrumD0Sgn->Sumw2();
658 spectrumD0Bkg->Sumw2();
660 spectrumD0Mass->SetLineColor(6);
661 spectrumD0Sgn->SetLineColor(2);
662 spectrumD0Bkg->SetLineColor(4);
664 spectrumD0Mass->SetMarkerStyle(20);
665 spectrumD0Sgn->SetMarkerStyle(20);
666 spectrumD0Bkg->SetMarkerStyle(20);
667 spectrumD0Mass->SetMarkerSize(0.6);
668 spectrumD0Sgn->SetMarkerSize(0.6);
669 spectrumD0Bkg->SetMarkerSize(0.6);
670 spectrumD0Mass->SetMarkerColor(6);
671 spectrumD0Sgn->SetMarkerColor(2);
672 spectrumD0Bkg->SetMarkerColor(4);
674 spectrumDstarMass->Sumw2();
675 spectrumDstarSgn->Sumw2();
676 spectrumDstarBkg->Sumw2();
678 spectrumDstarMass->SetLineColor(6);
679 spectrumDstarSgn->SetLineColor(2);
680 spectrumDstarBkg->SetLineColor(4);
682 spectrumDstarMass->SetMarkerStyle(20);
683 spectrumDstarSgn->SetMarkerStyle(20);
684 spectrumDstarBkg->SetMarkerStyle(20);
685 spectrumDstarMass->SetMarkerSize(0.6);
686 spectrumDstarSgn->SetMarkerSize(0.6);
687 spectrumDstarBkg->SetMarkerSize(0.6);
688 spectrumDstarMass->SetMarkerColor(6);
689 spectrumDstarSgn->SetMarkerColor(2);
690 spectrumDstarBkg->SetMarkerColor(4);
692 spectrumSideBandMass->Sumw2();
693 spectrumSideBandMass->SetLineColor(4);
694 spectrumSideBandMass->SetMarkerStyle(20);
695 spectrumSideBandMass->SetMarkerSize(0.6);
696 spectrumSideBandMass->SetMarkerColor(4);
698 spectrumWrongSignMass->Sumw2();
699 spectrumWrongSignMass->SetLineColor(4);
700 spectrumWrongSignMass->SetMarkerStyle(20);
701 spectrumWrongSignMass->SetMarkerSize(0.6);
702 spectrumWrongSignMass->SetMarkerColor(4);
704 TH1F* allMass = (TH1F*)spectrumMass->Clone();
705 TH1F* allSgn = (TH1F*)spectrumSgn->Clone();
706 TH1F* allBkg = (TH1F*)spectrumBkg->Clone();
708 TH1F* pidMass = (TH1F*)spectrumMass->Clone();
709 TH1F* pidSgn = (TH1F*)spectrumSgn->Clone();
710 TH1F* pidBkg = (TH1F*)spectrumBkg->Clone();
712 fOutputAll->Add(allMass);
713 fOutputAll->Add(allSgn);
714 fOutputAll->Add(allBkg);
716 fOutputPID->Add(pidMass);
717 fOutputPID->Add(pidSgn);
718 fOutputPID->Add(pidBkg);
720 TH1F* allD0Mass = (TH1F*)spectrumD0Mass->Clone();
721 TH1F* allD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
722 TH1F* allD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
724 TH1F* pidD0Mass = (TH1F*)spectrumD0Mass->Clone();
725 TH1F* pidD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
726 TH1F* pidD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
728 fOutputAll->Add(allD0Mass);
729 fOutputAll->Add(allD0Sgn);
730 fOutputAll->Add(allD0Bkg);
732 fOutputPID->Add(pidD0Mass);
733 fOutputPID->Add(pidD0Sgn);
734 fOutputPID->Add(pidD0Bkg);
736 TH1F* allDstarMass = (TH1F*)spectrumDstarMass->Clone();
737 TH1F* allDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
738 TH1F* allDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
740 TH1F* pidDstarMass = (TH1F*)spectrumDstarMass->Clone();
741 TH1F* pidDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
742 TH1F* pidDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
744 fOutputAll->Add(allDstarMass);
745 fOutputAll->Add(allDstarSgn);
746 fOutputAll->Add(allDstarBkg);
748 fOutputPID->Add(pidDstarMass);
749 fOutputPID->Add(pidDstarSgn);
750 fOutputPID->Add(pidDstarBkg);
752 TH1F* allSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
753 TH1F* pidSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
755 fOutputAll->Add(allSideBandMass);
756 fOutputPID->Add(pidSideBandMass);
758 TH1F* allWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
759 TH1F* pidWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
761 fOutputAll->Add(allWrongSignMass);
762 fOutputPID->Add(pidWrongSignMass);
771 TH1F* ptspectrumMass = new TH1F(nameMass.Data(),"D^{*} p_{T}; p_{T} [GeV]; Entries",200,0,10);
772 TH1F* ptspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
773 TH1F* ptspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
775 ptspectrumMass->Sumw2();
776 ptspectrumSgn->Sumw2();
777 ptspectrumBkg->Sumw2();
779 ptspectrumMass->SetLineColor(6);
780 ptspectrumSgn->SetLineColor(2);
781 ptspectrumBkg->SetLineColor(4);
783 ptspectrumMass->SetMarkerStyle(20);
784 ptspectrumSgn->SetMarkerStyle(20);
785 ptspectrumBkg->SetMarkerStyle(20);
786 ptspectrumMass->SetMarkerSize(0.6);
787 ptspectrumSgn->SetMarkerSize(0.6);
788 ptspectrumBkg->SetMarkerSize(0.6);
789 ptspectrumMass->SetMarkerColor(6);
790 ptspectrumSgn->SetMarkerColor(2);
791 ptspectrumBkg->SetMarkerColor(4);
793 TH1F* ptallMass = (TH1F*)ptspectrumMass->Clone();
794 TH1F* ptallSgn = (TH1F*)ptspectrumSgn->Clone();
795 TH1F* ptallBkg = (TH1F*)ptspectrumBkg->Clone();
797 TH1F* ptpidMass = (TH1F*)ptspectrumMass->Clone();
798 TH1F* ptpidSgn = (TH1F*)ptspectrumSgn->Clone();
799 TH1F* ptpidBkg = (TH1F*)ptspectrumBkg->Clone();
801 fOutputAll->Add(ptallMass);
802 fOutputAll->Add(ptallSgn);
803 fOutputAll->Add(ptallBkg);
805 fOutputPID->Add(ptpidMass);
806 fOutputPID->Add(ptpidSgn);
807 fOutputPID->Add(ptpidBkg);
814 TH1F* etaspectrumMass = new TH1F(nameMass.Data(),"D^{*} #eta; #eta; Entries",200,-1,1);
815 TH1F* etaspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal #eta - MC; #eta; Entries",200,-1,1);
816 TH1F* etaspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background #eta - MC; #eta; Entries",200,-1,1);
818 etaspectrumMass->Sumw2();
819 etaspectrumSgn->Sumw2();
820 etaspectrumBkg->Sumw2();
822 etaspectrumMass->SetLineColor(6);
823 etaspectrumSgn->SetLineColor(2);
824 etaspectrumBkg->SetLineColor(4);
826 etaspectrumMass->SetMarkerStyle(20);
827 etaspectrumSgn->SetMarkerStyle(20);
828 etaspectrumBkg->SetMarkerStyle(20);
829 etaspectrumMass->SetMarkerSize(0.6);
830 etaspectrumSgn->SetMarkerSize(0.6);
831 etaspectrumBkg->SetMarkerSize(0.6);
832 etaspectrumMass->SetMarkerColor(6);
833 etaspectrumSgn->SetMarkerColor(2);
834 etaspectrumBkg->SetMarkerColor(4);
836 TH1F* etaallMass = (TH1F*)etaspectrumMass->Clone();
837 TH1F* etaallSgn = (TH1F*)etaspectrumSgn->Clone();
838 TH1F* etaallBkg = (TH1F*)etaspectrumBkg->Clone();
840 TH1F* etapidMass = (TH1F*)etaspectrumMass->Clone();
841 TH1F* etapidSgn = (TH1F*)etaspectrumSgn->Clone();
842 TH1F* etapidBkg = (TH1F*)etaspectrumBkg->Clone();
844 fOutputAll->Add(etaallMass);
845 fOutputAll->Add(etaallSgn);
846 fOutputAll->Add(etaallBkg);
848 fOutputPID->Add(etapidMass);
849 fOutputPID->Add(etapidSgn);
850 fOutputPID->Add(etapidBkg);
853 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.);
854 fOutputPID->Add(deltamassVsyVsPtPID);
858 //________________________________________________________________________
859 void AliAnalysisTaskSEDStarSpectra::FillSpectrum(AliAODRecoCascadeHF *part, Int_t isDStar, AliRDHFCutsDStartoKpipi *cuts,Int_t isSel, TList *listout){
861 // Fill histos for D* spectrum
867 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
868 Double_t invmassD0 = part->InvMassD0();
869 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
872 Int_t ptbin=cuts->PtBin(part->Pt());
873 Double_t pt = part->Pt();
874 Double_t eta = part->Eta();
876 Double_t invmassDelta = part->DeltaInvMass();
877 Double_t invmassDstar = part->InvMassDstarKpipi();
880 Bool_t massInRange=kFALSE;
882 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
884 // delta M(Kpipi)-M(Kpi)
885 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))<fPeakWindow) massInRange=kTRUE;
889 fillthis="histD0Sgn_";
891 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
892 fillthis="histD0Sgn";
893 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
894 fillthis="histDstarSgn_";
896 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
897 fillthis="histDstarSgn";
898 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
899 fillthis="histDeltaSgn_";
901 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
902 fillthis="histDeltaSgn";
903 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
906 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
908 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
912 fillthis="histD0Bkg_";
914 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
915 fillthis="histD0Bkg";
916 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
917 fillthis="histDstarBkg_";
919 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
920 fillthis="histDstarBkg";
921 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
922 fillthis="histDeltaBkg_";
924 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
925 fillthis="histDeltaBkg";
926 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
929 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
931 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
935 //no MC info, just cut selection
936 fillthis="histD0Mass_";
938 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
939 fillthis="histD0Mass";
940 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
941 fillthis="histDstarMass_";
943 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
944 fillthis="histDstarMass";
945 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
946 fillthis="histDeltaMass_";
948 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
949 fillthis="histDeltaMass";
950 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
954 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
956 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
961 //______________________________ side band background for D*___________________________________
962 void AliAnalysisTaskSEDStarSpectra::SideBandBackground(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, Int_t isSel, TList *listout){
964 // D* side band background method. Two side bands, in M(Kpi) are taken at ~6 sigmas
965 // (expected detector resolution) on the left and right frm the D0 mass. Each band
966 // has a width of ~5 sigmas. Two band needed for opening angle considerations
970 Int_t ptbin=cuts->PtBin(part->Pt());
972 // select the side bands intervall
973 Double_t invmassD0 = part->InvMassD0();
974 if(TMath::Abs(invmassD0-1.865)>4*fD0Window && TMath::Abs(invmassD0-1.865)<8*fD0Window){
977 Double_t invmassDelta = part->DeltaInvMass();
980 fillthis="histSideBandMass_";
982 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
983 fillthis="histSideBandMass";
984 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
988 //________________________________________________________________________________________________________________
989 void AliAnalysisTaskSEDStarSpectra::WrongSignForDStar(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, TList *listout){
991 // assign the wrong charge to the soft pion to create background
993 Int_t ptbin=cuts->PtBin(part->Pt());
995 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
996 Double_t invmassD0 = part->InvMassD0();
997 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
999 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)part->Get2Prong();
1001 Int_t okD0WrongSign;
1002 Double_t wrongMassD0=0.;
1004 Int_t isSelected=cuts->IsSelected(part,AliRDHFCuts::kCandidate); //selected
1011 //if is D*+ than assume D0bar
1012 if(part->Charge()>0 && (isSelected ==1)) {
1016 // assign the wrong mass in case the cuts return both D0 and D0bar
1017 if(part->Charge()>0 && (isSelected ==3)) {
1022 if(okD0WrongSign!=0){
1023 wrongMassD0 = theD0particle->InvMassD0();
1024 }else if(okD0WrongSign==0){
1025 wrongMassD0 = theD0particle->InvMassD0bar();
1028 if(TMath::Abs(wrongMassD0-1.865)<fD0Window){
1030 // wrong D* inv mass
1032 if (part->Charge()>0){
1033 e[0]=theD0particle->EProng(0,321);
1034 e[1]=theD0particle->EProng(1,211);
1036 e[0]=theD0particle->EProng(0,211);
1037 e[1]=theD0particle->EProng(1,321);
1039 e[2]=part->EProng(0,211);
1041 Double_t esum = e[0]+e[1]+e[2];
1042 Double_t pds = part->P();
1044 Double_t wrongMassDstar = TMath::Sqrt(esum*esum-pds*pds);
1046 TString fillthis="";
1047 fillthis="histWrongSignMass_";
1049 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1050 fillthis="histWrongSignMass";
1051 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1056 //-------------------------------------------------------------------------------
1057 Int_t AliAnalysisTaskSEDStarSpectra::CheckOrigin(TClonesArray* arrayMC, const AliAODMCParticle *mcPartCandidate) const {
1059 // checking whether the mother of the particles come from a charm or a bottom quark
1062 Int_t pdgGranma = 0;
1064 mother = mcPartCandidate->GetMother();
1066 Int_t abspdgGranma =0;
1067 Bool_t isFromB=kFALSE;
1070 AliAODMCParticle* mcGranma = dynamic_cast<AliAODMCParticle*>(arrayMC->At(mother));
1072 pdgGranma = mcGranma->GetPdgCode();
1073 abspdgGranma = TMath::Abs(pdgGranma);
1074 if ((abspdgGranma > 500 && abspdgGranma < 600) || (abspdgGranma > 5000 && abspdgGranma < 6000)){
1077 mother = mcGranma->GetMother();
1079 AliError("Failed casting the mother particle!");
1084 if(isFromB) return 5;
1087 //-------------------------------------------------------------------------------------
1088 Float_t AliAnalysisTaskSEDStarSpectra::GetTrueImpactParameterD0(const AliAODMCHeader *mcHeader, TClonesArray* arrayMC, const AliAODMCParticle *partDp) const {
1089 // true impact parameter calculation
1091 Double_t vtxTrue[3];
1092 mcHeader->GetVertex(vtxTrue);
1094 partDp->XvYvZv(origD);
1095 Short_t charge=partDp->Charge();
1096 Double_t pXdauTrue[3],pYdauTrue[3],pZdauTrue[3];
1097 Int_t labelFirstDau = partDp->GetDaughter(0);
1099 Int_t nDau=partDp->GetNDaughters();
1103 for(Int_t iDau=0; iDau<2; iDau++){
1104 Int_t ind = labelFirstDau+iDau;
1105 AliAODMCParticle* part = dynamic_cast<AliAODMCParticle*>(arrayMC->At(ind));
1107 AliError("Daughter particle not found in MC array");
1110 Int_t pdgCode=TMath::Abs(part->GetPdgCode());
1111 if(pdgCode==211 || pdgCode==321){
1112 pXdauTrue[theDau]=part->Px();
1113 pYdauTrue[theDau]=part->Py();
1114 pZdauTrue[theDau]=part->Pz();
1120 AliError("Wrong number of decay prongs");
1124 Double_t d0dummy[3]={0.,0.,0.};
1125 AliAODRecoDecayHF aodD0MC(vtxTrue,origD,3,charge,pXdauTrue,pYdauTrue,pZdauTrue,d0dummy);
1126 return aodD0MC.ImpParXY();
1129 //______________________________________________________-
1130 void AliAnalysisTaskSEDStarSpectra::CreateImpactParameterHistos(){
1131 // Histos for impact paramter study
1133 Int_t nbins[3]={400,200,fNImpParBins};
1134 Double_t xmin[3]={1.75,0.,fLowerImpPar};
1135 Double_t xmax[3]={1.98,20.,fHigherImpPar};
1137 fHistMassPtImpParTCDs[0]=new THnSparseF("hMassPtImpParAll",
1138 "Mass vs. pt vs.imppar - All",
1140 fHistMassPtImpParTCDs[1]=new THnSparseF("hMassPtImpParPrompt",
1141 "Mass vs. pt vs.imppar - promptD",
1143 fHistMassPtImpParTCDs[2]=new THnSparseF("hMassPtImpParBfeed",
1144 "Mass vs. pt vs.imppar - DfromB",
1146 fHistMassPtImpParTCDs[3]=new THnSparseF("hMassPtImpParTrueBfeed",
1147 "Mass vs. pt vs.true imppar -DfromB",
1149 fHistMassPtImpParTCDs[4]=new THnSparseF("hMassPtImpParBkg",
1150 "Mass vs. pt vs.imppar - backgr.",
1153 for(Int_t i=0; i<5;i++){
1154 fOutput->Add(fHistMassPtImpParTCDs[i]);