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->GetNTracks(); i++){
444 AliAODTrack* aodTrack = aodEvent->GetTrack(i);
446 if(dstarD0pi->Charge() == aodTrack->Charge()) continue;
447 if((!(aodTrack->GetStatus()&AliESDtrack::kITSrefit)|| (!(aodTrack->GetStatus()&AliESDtrack::kTPCrefit)))) continue;
448 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))>0.02) continue;
451 Double_t mass = TDatabasePDG::Instance()->GetParticle(211)->Mass();
453 lorentzTrack1.SetPxPyPzE( dstarD0pi->Px(),dstarD0pi->Py(), dstarD0pi->Pz(), dstarD0pi->E(413) );
454 lorentzTrack2.SetPxPyPzE( aodTrack->Px(),aodTrack->Py(), aodTrack->Pz(),aodTrack->E(mass) );
457 Double_t d1mass = ((lorentzTrack1+lorentzTrack2).M());
458 //mass difference - at 0.4117 and 0.4566
459 fDeltaMassD1->Fill(d1mass-dstarD0pi->InvMassDstarKpipi());
464 fTrueDiff2->Fill(dstarD0pi->Pt(),dstarD0pi->DeltaInvMass());
469 fCounter->StoreCandidates(aodEvent,nSelectedProd,kTRUE);
470 fCounter->StoreCandidates(aodEvent,nSelectedAna,kFALSE);
472 AliDebug(2, Form("Found %i Reco particles that are D*!!",icountReco));
475 PostData(2,fOutputAll);
476 PostData(3,fOutputPID);
477 PostData(5,fCounter);
480 //________________________________________ terminate ___________________________
481 void AliAnalysisTaskSEDStarSpectra::Terminate(Option_t*)
483 // The Terminate() function is the last function to be called during
484 // a query. It always runs on the client, it can be used to present
485 // the results graphically or save the results to file.
487 //Info("Terminate","");
488 AliAnalysisTaskSE::Terminate();
490 fOutput = dynamic_cast<TList*> (GetOutputData(1));
492 printf("ERROR: fOutput not available\n");
496 fCEvents = dynamic_cast<TH1F*>(fOutput->FindObject("fCEvents"));
497 fDeltaMassD1 = dynamic_cast<TH1F*>(fOutput->FindObject("fDeltaMassD1"));
498 fTrueDiff2 = dynamic_cast<TH2F*>(fOutput->FindObject("fTrueDiff2"));
500 fOutputAll = dynamic_cast<TList*> (GetOutputData(1));
502 printf("ERROR: fOutputAll not available\n");
505 fOutputPID = dynamic_cast<TList*> (GetOutputData(2));
507 printf("ERROR: fOutputPID not available\n");
514 //___________________________________________________________________________
515 void AliAnalysisTaskSEDStarSpectra::UserCreateOutputObjects() {
517 Info("UserCreateOutputObjects","CreateOutputObjects of task %s\n", GetName());
521 fOutput = new TList();
523 fOutput->SetName("chist0");
525 fOutputAll = new TList();
526 fOutputAll->SetOwner();
527 fOutputAll->SetName("listAll");
529 fOutputPID = new TList();
530 fOutputPID->SetOwner();
531 fOutputPID->SetName("listPID");
536 //Counter for Normalization
537 fCounter = new AliNormalizationCounter(Form("%s",GetOutputSlot(5)->GetContainer()->GetName()));
540 if(fDoImpParDstar) CreateImpactParameterHistos();
543 PostData(2,fOutputAll);
544 PostData(3,fOutputPID);
548 //___________________________________ hiostograms _______________________________________
549 void AliAnalysisTaskSEDStarSpectra::DefineHistograms(){
552 fCEvents = new TH1F("fCEvents","conter",11,0,11);
553 fCEvents->SetStats(kTRUE);
554 fCEvents->GetXaxis()->SetTitle("1");
555 fCEvents->GetYaxis()->SetTitle("counts");
556 fOutput->Add(fCEvents);
558 fTrueDiff2 = new TH2F("DiffDstar_pt","True Reco diff vs pt",200,0,15,900,0,0.3);
559 fOutput->Add(fTrueDiff2);
561 fDeltaMassD1 = new TH1F("DeltaMassD1","delta mass d1",600,0,0.8);
562 fOutput->Add(fDeltaMassD1);
564 const Int_t nhist=14;
565 TString nameMass=" ", nameSgn=" ", nameBkg=" ";
567 for(Int_t i=-2;i<nhist;i++){
568 nameMass="histDeltaMass_";
570 nameSgn="histDeltaSgn_";
572 nameBkg="histDeltaBkg_";
576 nameMass="histDeltaMass";
577 nameSgn="histDeltaSgn";
578 nameBkg="histDeltaBkg";
581 TH1F* spectrumMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} invariant mass; #DeltaM [GeV/c^{2}]; Entries",700,0.13,0.2);
582 TH1F* spectrumSgn = new TH1F(nameSgn.Data(), "D^{*}-D^{0} Signal invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",700,0.13,0.2);
583 TH1F* spectrumBkg = new TH1F(nameBkg.Data(), "D^{*}-D^{0} Background invariant mass - MC; #DeltaM [GeV/c^{2}]; Entries",700,0.13,0.2);
585 nameMass="histD0Mass_";
587 nameSgn="histD0Sgn_";
589 nameBkg="histD0Bkg_";
593 nameMass="histD0Mass";
598 TH1F* spectrumD0Mass = new TH1F(nameMass.Data(),"D^{0} invariant mass; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
599 TH1F* spectrumD0Sgn = new TH1F(nameSgn.Data(), "D^{0} Signal invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
600 TH1F* spectrumD0Bkg = new TH1F(nameBkg.Data(), "D^{0} Background invariant mass - MC; M(D^{0}) [GeV/c^{2}]; Entries",200,1.75,1.95);
602 nameMass="histDstarMass_";
604 nameSgn="histDstarSgn_";
606 nameBkg="histDstarBkg_";
610 nameMass="histDstarMass";
611 nameSgn="histDstarSgn";
612 nameBkg="histDstarBkg";
615 TH1F* spectrumDstarMass = new TH1F(nameMass.Data(),"D^{*} invariant mass; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
616 TH1F* spectrumDstarSgn = new TH1F(nameSgn.Data(), "D^{*} Signal invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
617 TH1F* spectrumDstarBkg = new TH1F(nameBkg.Data(), "D^{*} Background invariant mass - MC; M(D^{*}) [GeV/c^{2}]; Entries",200,1.9,2.1);
619 nameMass="histSideBandMass_";
622 nameMass="histSideBandMass";
625 TH1F* spectrumSideBandMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} sideband mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
627 nameMass="histWrongSignMass_";
630 nameMass="histWrongSignMass";
633 TH1F* spectrumWrongSignMass = new TH1F(nameMass.Data(),"D^{*}-D^{0} wrongsign mass; M(D^{*}) [GeV/c^{2}]; Entries",200,0.1,0.2);
636 spectrumMass->Sumw2();
637 spectrumSgn->Sumw2();
638 spectrumBkg->Sumw2();
640 spectrumMass->SetLineColor(6);
641 spectrumSgn->SetLineColor(2);
642 spectrumBkg->SetLineColor(4);
644 spectrumMass->SetMarkerStyle(20);
645 spectrumSgn->SetMarkerStyle(20);
646 spectrumBkg->SetMarkerStyle(20);
647 spectrumMass->SetMarkerSize(0.6);
648 spectrumSgn->SetMarkerSize(0.6);
649 spectrumBkg->SetMarkerSize(0.6);
650 spectrumMass->SetMarkerColor(6);
651 spectrumSgn->SetMarkerColor(2);
652 spectrumBkg->SetMarkerColor(4);
654 spectrumD0Mass->Sumw2();
655 spectrumD0Sgn->Sumw2();
656 spectrumD0Bkg->Sumw2();
658 spectrumD0Mass->SetLineColor(6);
659 spectrumD0Sgn->SetLineColor(2);
660 spectrumD0Bkg->SetLineColor(4);
662 spectrumD0Mass->SetMarkerStyle(20);
663 spectrumD0Sgn->SetMarkerStyle(20);
664 spectrumD0Bkg->SetMarkerStyle(20);
665 spectrumD0Mass->SetMarkerSize(0.6);
666 spectrumD0Sgn->SetMarkerSize(0.6);
667 spectrumD0Bkg->SetMarkerSize(0.6);
668 spectrumD0Mass->SetMarkerColor(6);
669 spectrumD0Sgn->SetMarkerColor(2);
670 spectrumD0Bkg->SetMarkerColor(4);
672 spectrumDstarMass->Sumw2();
673 spectrumDstarSgn->Sumw2();
674 spectrumDstarBkg->Sumw2();
676 spectrumDstarMass->SetLineColor(6);
677 spectrumDstarSgn->SetLineColor(2);
678 spectrumDstarBkg->SetLineColor(4);
680 spectrumDstarMass->SetMarkerStyle(20);
681 spectrumDstarSgn->SetMarkerStyle(20);
682 spectrumDstarBkg->SetMarkerStyle(20);
683 spectrumDstarMass->SetMarkerSize(0.6);
684 spectrumDstarSgn->SetMarkerSize(0.6);
685 spectrumDstarBkg->SetMarkerSize(0.6);
686 spectrumDstarMass->SetMarkerColor(6);
687 spectrumDstarSgn->SetMarkerColor(2);
688 spectrumDstarBkg->SetMarkerColor(4);
690 spectrumSideBandMass->Sumw2();
691 spectrumSideBandMass->SetLineColor(4);
692 spectrumSideBandMass->SetMarkerStyle(20);
693 spectrumSideBandMass->SetMarkerSize(0.6);
694 spectrumSideBandMass->SetMarkerColor(4);
696 spectrumWrongSignMass->Sumw2();
697 spectrumWrongSignMass->SetLineColor(4);
698 spectrumWrongSignMass->SetMarkerStyle(20);
699 spectrumWrongSignMass->SetMarkerSize(0.6);
700 spectrumWrongSignMass->SetMarkerColor(4);
702 TH1F* allMass = (TH1F*)spectrumMass->Clone();
703 TH1F* allSgn = (TH1F*)spectrumSgn->Clone();
704 TH1F* allBkg = (TH1F*)spectrumBkg->Clone();
706 TH1F* pidMass = (TH1F*)spectrumMass->Clone();
707 TH1F* pidSgn = (TH1F*)spectrumSgn->Clone();
708 TH1F* pidBkg = (TH1F*)spectrumBkg->Clone();
710 fOutputAll->Add(allMass);
711 fOutputAll->Add(allSgn);
712 fOutputAll->Add(allBkg);
714 fOutputPID->Add(pidMass);
715 fOutputPID->Add(pidSgn);
716 fOutputPID->Add(pidBkg);
718 TH1F* allD0Mass = (TH1F*)spectrumD0Mass->Clone();
719 TH1F* allD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
720 TH1F* allD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
722 TH1F* pidD0Mass = (TH1F*)spectrumD0Mass->Clone();
723 TH1F* pidD0Sgn = (TH1F*)spectrumD0Sgn->Clone();
724 TH1F* pidD0Bkg = (TH1F*)spectrumD0Bkg->Clone();
726 fOutputAll->Add(allD0Mass);
727 fOutputAll->Add(allD0Sgn);
728 fOutputAll->Add(allD0Bkg);
730 fOutputPID->Add(pidD0Mass);
731 fOutputPID->Add(pidD0Sgn);
732 fOutputPID->Add(pidD0Bkg);
734 TH1F* allDstarMass = (TH1F*)spectrumDstarMass->Clone();
735 TH1F* allDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
736 TH1F* allDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
738 TH1F* pidDstarMass = (TH1F*)spectrumDstarMass->Clone();
739 TH1F* pidDstarSgn = (TH1F*)spectrumDstarSgn->Clone();
740 TH1F* pidDstarBkg = (TH1F*)spectrumDstarBkg->Clone();
742 fOutputAll->Add(allDstarMass);
743 fOutputAll->Add(allDstarSgn);
744 fOutputAll->Add(allDstarBkg);
746 fOutputPID->Add(pidDstarMass);
747 fOutputPID->Add(pidDstarSgn);
748 fOutputPID->Add(pidDstarBkg);
750 TH1F* allSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
751 TH1F* pidSideBandMass = (TH1F*)spectrumSideBandMass->Clone();
753 fOutputAll->Add(allSideBandMass);
754 fOutputPID->Add(pidSideBandMass);
756 TH1F* allWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
757 TH1F* pidWrongSignMass = (TH1F*)spectrumWrongSignMass->Clone();
759 fOutputAll->Add(allWrongSignMass);
760 fOutputPID->Add(pidWrongSignMass);
769 TH1F* ptspectrumMass = new TH1F(nameMass.Data(),"D^{*} p_{T}; p_{T} [GeV]; Entries",200,0,10);
770 TH1F* ptspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
771 TH1F* ptspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background p_{T} - MC; p_{T} [GeV]; Entries",200,0,10);
773 ptspectrumMass->Sumw2();
774 ptspectrumSgn->Sumw2();
775 ptspectrumBkg->Sumw2();
777 ptspectrumMass->SetLineColor(6);
778 ptspectrumSgn->SetLineColor(2);
779 ptspectrumBkg->SetLineColor(4);
781 ptspectrumMass->SetMarkerStyle(20);
782 ptspectrumSgn->SetMarkerStyle(20);
783 ptspectrumBkg->SetMarkerStyle(20);
784 ptspectrumMass->SetMarkerSize(0.6);
785 ptspectrumSgn->SetMarkerSize(0.6);
786 ptspectrumBkg->SetMarkerSize(0.6);
787 ptspectrumMass->SetMarkerColor(6);
788 ptspectrumSgn->SetMarkerColor(2);
789 ptspectrumBkg->SetMarkerColor(4);
791 TH1F* ptallMass = (TH1F*)ptspectrumMass->Clone();
792 TH1F* ptallSgn = (TH1F*)ptspectrumSgn->Clone();
793 TH1F* ptallBkg = (TH1F*)ptspectrumBkg->Clone();
795 TH1F* ptpidMass = (TH1F*)ptspectrumMass->Clone();
796 TH1F* ptpidSgn = (TH1F*)ptspectrumSgn->Clone();
797 TH1F* ptpidBkg = (TH1F*)ptspectrumBkg->Clone();
799 fOutputAll->Add(ptallMass);
800 fOutputAll->Add(ptallSgn);
801 fOutputAll->Add(ptallBkg);
803 fOutputPID->Add(ptpidMass);
804 fOutputPID->Add(ptpidSgn);
805 fOutputPID->Add(ptpidBkg);
812 TH1F* etaspectrumMass = new TH1F(nameMass.Data(),"D^{*} #eta; #eta; Entries",200,-1,1);
813 TH1F* etaspectrumSgn = new TH1F(nameSgn.Data(), "D^{*} Signal #eta - MC; #eta; Entries",200,-1,1);
814 TH1F* etaspectrumBkg = new TH1F(nameBkg.Data(), "D^{*} Background #eta - MC; #eta; Entries",200,-1,1);
816 etaspectrumMass->Sumw2();
817 etaspectrumSgn->Sumw2();
818 etaspectrumBkg->Sumw2();
820 etaspectrumMass->SetLineColor(6);
821 etaspectrumSgn->SetLineColor(2);
822 etaspectrumBkg->SetLineColor(4);
824 etaspectrumMass->SetMarkerStyle(20);
825 etaspectrumSgn->SetMarkerStyle(20);
826 etaspectrumBkg->SetMarkerStyle(20);
827 etaspectrumMass->SetMarkerSize(0.6);
828 etaspectrumSgn->SetMarkerSize(0.6);
829 etaspectrumBkg->SetMarkerSize(0.6);
830 etaspectrumMass->SetMarkerColor(6);
831 etaspectrumSgn->SetMarkerColor(2);
832 etaspectrumBkg->SetMarkerColor(4);
834 TH1F* etaallMass = (TH1F*)etaspectrumMass->Clone();
835 TH1F* etaallSgn = (TH1F*)etaspectrumSgn->Clone();
836 TH1F* etaallBkg = (TH1F*)etaspectrumBkg->Clone();
838 TH1F* etapidMass = (TH1F*)etaspectrumMass->Clone();
839 TH1F* etapidSgn = (TH1F*)etaspectrumSgn->Clone();
840 TH1F* etapidBkg = (TH1F*)etaspectrumBkg->Clone();
842 fOutputAll->Add(etaallMass);
843 fOutputAll->Add(etaallSgn);
844 fOutputAll->Add(etaallBkg);
846 fOutputPID->Add(etapidMass);
847 fOutputPID->Add(etapidSgn);
848 fOutputPID->Add(etapidBkg);
851 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.);
852 fOutputPID->Add(deltamassVsyVsPtPID);
856 //________________________________________________________________________
857 void AliAnalysisTaskSEDStarSpectra::FillSpectrum(AliAODRecoCascadeHF *part, Int_t isDStar, AliRDHFCutsDStartoKpipi *cuts,Int_t isSel, TList *listout){
859 // Fill histos for D* spectrum
865 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
866 Double_t invmassD0 = part->InvMassD0();
867 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
870 Int_t ptbin=cuts->PtBin(part->Pt());
871 Double_t pt = part->Pt();
872 Double_t eta = part->Eta();
874 Double_t invmassDelta = part->DeltaInvMass();
875 Double_t invmassDstar = part->InvMassDstarKpipi();
878 Bool_t massInRange=kFALSE;
880 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
882 // delta M(Kpipi)-M(Kpi)
883 if (TMath::Abs(invmassDelta-(mPDGDstar-mPDGD0))<fPeakWindow) massInRange=kTRUE;
887 fillthis="histD0Sgn_";
889 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
890 fillthis="histD0Sgn";
891 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
892 fillthis="histDstarSgn_";
894 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
895 fillthis="histDstarSgn";
896 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
897 fillthis="histDeltaSgn_";
899 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
900 fillthis="histDeltaSgn";
901 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
904 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
906 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
910 fillthis="histD0Bkg_";
912 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
913 fillthis="histD0Bkg";
914 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
915 fillthis="histDstarBkg_";
917 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
918 fillthis="histDstarBkg";
919 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
920 fillthis="histDeltaBkg_";
922 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
923 fillthis="histDeltaBkg";
924 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
927 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
929 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
933 //no MC info, just cut selection
934 fillthis="histD0Mass_";
936 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
937 fillthis="histD0Mass";
938 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
939 fillthis="histDstarMass_";
941 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
942 fillthis="histDstarMass";
943 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDstar);
944 fillthis="histDeltaMass_";
946 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
947 fillthis="histDeltaMass";
948 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
952 ((TH1F*)(listout->FindObject(fillthis)))->Fill(pt);
954 ((TH1F*)(listout->FindObject(fillthis)))->Fill(eta);
959 //______________________________ side band background for D*___________________________________
960 void AliAnalysisTaskSEDStarSpectra::SideBandBackground(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, Int_t isSel, TList *listout){
962 // D* side band background method. Two side bands, in M(Kpi) are taken at ~6 sigmas
963 // (expected detector resolution) on the left and right frm the D0 mass. Each band
964 // has a width of ~5 sigmas. Two band needed for opening angle considerations
968 Int_t ptbin=cuts->PtBin(part->Pt());
970 // select the side bands intervall
971 Double_t invmassD0 = part->InvMassD0();
972 if(TMath::Abs(invmassD0-1.865)>4*fD0Window && TMath::Abs(invmassD0-1.865)<8*fD0Window){
975 Double_t invmassDelta = part->DeltaInvMass();
978 fillthis="histSideBandMass_";
980 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
981 fillthis="histSideBandMass";
982 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassDelta);
986 //________________________________________________________________________________________________________________
987 void AliAnalysisTaskSEDStarSpectra::WrongSignForDStar(AliAODRecoCascadeHF *part, AliRDHFCutsDStartoKpipi *cuts, TList *listout){
989 // assign the wrong charge to the soft pion to create background
991 Int_t ptbin=cuts->PtBin(part->Pt());
993 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
994 Double_t invmassD0 = part->InvMassD0();
995 if (TMath::Abs(invmassD0-mPDGD0)>fD0Window) return;
997 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)part->Get2Prong();
1000 Double_t wrongMassD0=0.;
1002 Int_t isSelected=cuts->IsSelected(part,AliRDHFCuts::kCandidate); //selected
1009 //if is D*+ than assume D0bar
1010 if(part->Charge()>0 && (isSelected ==1)) {
1014 // assign the wrong mass in case the cuts return both D0 and D0bar
1015 if(part->Charge()>0 && (isSelected ==3)) {
1020 if(okD0WrongSign!=0){
1021 wrongMassD0 = theD0particle->InvMassD0();
1022 }else if(okD0WrongSign==0){
1023 wrongMassD0 = theD0particle->InvMassD0bar();
1026 if(TMath::Abs(wrongMassD0-1.865)<fD0Window){
1028 // wrong D* inv mass
1030 if (part->Charge()>0){
1031 e[0]=theD0particle->EProng(0,321);
1032 e[1]=theD0particle->EProng(1,211);
1034 e[0]=theD0particle->EProng(0,211);
1035 e[1]=theD0particle->EProng(1,321);
1037 e[2]=part->EProng(0,211);
1039 Double_t esum = e[0]+e[1]+e[2];
1040 Double_t pds = part->P();
1042 Double_t wrongMassDstar = TMath::Sqrt(esum*esum-pds*pds);
1044 TString fillthis="";
1045 fillthis="histWrongSignMass_";
1047 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1048 fillthis="histWrongSignMass";
1049 ((TH1F*)(listout->FindObject(fillthis)))->Fill(wrongMassDstar-wrongMassD0);
1054 //-------------------------------------------------------------------------------
1055 Int_t AliAnalysisTaskSEDStarSpectra::CheckOrigin(TClonesArray* arrayMC, const AliAODMCParticle *mcPartCandidate) const {
1057 // checking whether the mother of the particles come from a charm or a bottom quark
1060 Int_t pdgGranma = 0;
1062 mother = mcPartCandidate->GetMother();
1064 Int_t abspdgGranma =0;
1065 Bool_t isFromB=kFALSE;
1068 AliAODMCParticle* mcGranma = dynamic_cast<AliAODMCParticle*>(arrayMC->At(mother));
1070 pdgGranma = mcGranma->GetPdgCode();
1071 abspdgGranma = TMath::Abs(pdgGranma);
1072 if ((abspdgGranma > 500 && abspdgGranma < 600) || (abspdgGranma > 5000 && abspdgGranma < 6000)){
1075 mother = mcGranma->GetMother();
1077 AliError("Failed casting the mother particle!");
1082 if(isFromB) return 5;
1085 //-------------------------------------------------------------------------------------
1086 Float_t AliAnalysisTaskSEDStarSpectra::GetTrueImpactParameterD0(const AliAODMCHeader *mcHeader, TClonesArray* arrayMC, const AliAODMCParticle *partDp) const {
1087 // true impact parameter calculation
1089 Double_t vtxTrue[3];
1090 mcHeader->GetVertex(vtxTrue);
1092 partDp->XvYvZv(origD);
1093 Short_t charge=partDp->Charge();
1094 Double_t pXdauTrue[3],pYdauTrue[3],pZdauTrue[3];
1095 Int_t labelFirstDau = partDp->GetDaughter(0);
1097 Int_t nDau=partDp->GetNDaughters();
1101 for(Int_t iDau=0; iDau<2; iDau++){
1102 Int_t ind = labelFirstDau+iDau;
1103 AliAODMCParticle* part = dynamic_cast<AliAODMCParticle*>(arrayMC->At(ind));
1105 AliError("Daughter particle not found in MC array");
1108 Int_t pdgCode=TMath::Abs(part->GetPdgCode());
1109 if(pdgCode==211 || pdgCode==321){
1110 pXdauTrue[theDau]=part->Px();
1111 pYdauTrue[theDau]=part->Py();
1112 pZdauTrue[theDau]=part->Pz();
1118 AliError("Wrong number of decay prongs");
1122 Double_t d0dummy[3]={0.,0.,0.};
1123 AliAODRecoDecayHF aodD0MC(vtxTrue,origD,3,charge,pXdauTrue,pYdauTrue,pZdauTrue,d0dummy);
1124 return aodD0MC.ImpParXY();
1127 //______________________________________________________-
1128 void AliAnalysisTaskSEDStarSpectra::CreateImpactParameterHistos(){
1129 // Histos for impact paramter study
1131 Int_t nbins[3]={400,200,fNImpParBins};
1132 Double_t xmin[3]={1.75,0.,fLowerImpPar};
1133 Double_t xmax[3]={1.98,20.,fHigherImpPar};
1135 fHistMassPtImpParTCDs[0]=new THnSparseF("hMassPtImpParAll",
1136 "Mass vs. pt vs.imppar - All",
1138 fHistMassPtImpParTCDs[1]=new THnSparseF("hMassPtImpParPrompt",
1139 "Mass vs. pt vs.imppar - promptD",
1141 fHistMassPtImpParTCDs[2]=new THnSparseF("hMassPtImpParBfeed",
1142 "Mass vs. pt vs.imppar - DfromB",
1144 fHistMassPtImpParTCDs[3]=new THnSparseF("hMassPtImpParTrueBfeed",
1145 "Mass vs. pt vs.true imppar -DfromB",
1147 fHistMassPtImpParTCDs[4]=new THnSparseF("hMassPtImpParBkg",
1148 "Mass vs. pt vs.imppar - backgr.",
1151 for(Int_t i=0; i<5;i++){
1152 fOutput->Add(fHistMassPtImpParTCDs[i]);