2 // Main author: Davide Caffarri 2009
4 /**************************************************************************
5 * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
6 * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for *
7 * full copyright notice. *
8 **************************************************************************/
10 class AliAODRecoDecayHF;
12 void aod_hf_init_rectrack(TEveRecTrack& rt, AliExternalTrackParam* tp)
14 Double_t pbuf[3], vbuf[3];
15 rt.fSign = tp->GetSign();
16 tp->GetXYZ(vbuf); rt.fV.Set(vbuf);
17 tp->GetPxPyPz(pbuf); rt.fP.Set(pbuf);
18 // Double_t ep = at->GetP(), mc = at->GetMass();
19 rt.fBeta = 1; // ep/TMath::Sqrt(ep*ep + mc*mc);
23 AliEveHF* aod_make_HF(TEveTrackPropagator* rnrStyle, AliAODVertex* primAODVtx,
24 AliESDtrack* neg, AliESDtrack* pos, AliAODRecoDecayHF* rd, Int_t i)
32 p[0]=rd->PxProng(0); p[1]=rd->PyProng(0); p[2]=rd->PzProng(0);
34 p[0]=rd->PxProng(1); p[1]=rd->PyProng(1); p[2]=rd->PzProng(1);
37 p[0]=rd->Px(); p[1]=rd->Py(); p[2]=rd->Pz();
40 Double_t primVtx[3]={primAODVtx->GetX(), primAODVtx->GetY(), primAODVtx->GetZ()};
43 Double_t v[3] = {rd->Xv(),rd->Yv(),rd->Zv()};
44 printf("vertex %f %f %f\n",v[0],v[1],v[2]);
46 aod_hf_init_rectrack(rcNeg, neg);
47 //rcNeg.fIndex = v0->GetNindex();
48 aod_hf_init_rectrack(rcPos, pos);
49 //rcPos.fIndex = v0->GetPindex();
51 AliEveHF* myHF = new AliEveHF(&rcNeg, &rcPos, primVtx ,rd, rnrStyle);
52 myHF->SetElementName(Form("D0->Kpi %d", i));
53 myHF->SetElementTitle(Form("CosPointingAngle %f", rd->CosPointingAngle()));
59 AliEveHFList* aod_HF()
61 Bool_t useParFiles=kFALSE;
62 gROOT->LoadMacro("$ALICE_ROOT/PWG3/vertexingHF/LoadLibraries.C");
63 LoadLibraries(useParFiles);
65 AliAODEvent* aod = AliEveEventManager::AssertAOD();
66 AliESDEvent* esd = AliEveEventManager::AssertESD();
69 gSystem->Load("libANALYSIS");
70 gSystem->Load("libANALYSISalice");
71 gSystem->Load("libCORRFW");
72 gSystem->Load("libPWG3base");
73 gSystem->Load("libPWG3vertexingHF");
77 TClonesArray *mcArray =
78 (TClonesArray*) aod->FindListObject(AliAODMCParticle::StdBranchName());
80 printf("MC particles branch not found!\n");
84 AliAODVertex* primVtx_aod = (AliAODVertex*) aod->GetPrimaryVertex();
85 // AliESDVertex *primVtx_esd = (AliESDVertex*) esd->GetPrimaryVertex();
87 AliEveHFList* cont = new AliEveHFList("AOD HF vertices");
88 cont->SetMainColor(2);
89 TEveTrackPropagator* rnrStyle = cont->GetPropagator();
90 rnrStyle->SetMagField( 0.1*aod->GetMagneticField() );
92 gEve->AddElement(cont);
94 TEvePointSet* pointsD0toKpi = new TEvePointSet("D0->Kpi vertex locations");
96 // load D0->Kpi candidates
97 TClonesArray *arrayD0toKpi = (TClonesArray*) aod->FindListObject("D0toKpi");
99 // load 3prong candidates
100 // TClonesArray *array3Prong =
101 // (TClonesArray*)aod->GetList()->FindObject("Charm3Prong");
104 for (Int_t iD0toKpi=0; iD0toKpi<arrayD0toKpi->GetEntriesFast(); iD0toKpi++)
106 AliAODRecoDecayHF2Prong *rd = (AliAODRecoDecayHF2Prong*)arrayD0toKpi->UncheckedAt(iD0toKpi);
107 Bool_t unsetvtx=kFALSE;
108 if (!rd->GetOwnPrimaryVtx()) {
109 rd->SetOwnPrimaryVtx(primVtx_aod);
112 // REAL D0 particle. If you want to draw only real D0 un-comment these lines
113 //Int_t labD0 = rd->MatchToMC(421,mcArray);
114 //if(labD0<0) continue;
116 AliAODTrack *negAODTr = rd->GetDaughter(0);
117 AliAODTrack *posAODTr = rd->GetDaughter(1);
119 AliVVertex *secv = rd->GetSecondaryVtx();
121 AliESDtrack *negTr = new AliESDtrack(negAODTr);
122 AliESDtrack *posTr = new AliESDtrack(posAODTr);
124 negTr->PropagateToDCA((AliAODVertex*)secv,aod->GetMagneticField(),100.);
125 posTr->PropagateToDCA((AliAODVertex*)secv,aod->GetMagneticField(),100.);
127 AliEveHF* myD0 = aod_make_HF(rnrStyle,primVtx_aod,negTr,posTr,rd,iD0toKpi);
129 gEve->AddElement(myD0,cont);
133 pointsD0toKpi->SetNextPoint(rd->Xv(),rd->Yv(),rd->Zv());
134 pointsD0toKpi->SetPointId(rd);
137 rd->UnsetOwnPrimaryVtx();
141 //cont->SetTitle("test");
146 pointsD0toKpi->SetTitle(Form("N=%d", pointsD0toKpi->Size()));
147 pointsD0toKpi->SetMarkerStyle(4);
148 pointsD0toKpi->SetMarkerSize(1.5);
149 pointsD0toKpi->SetMarkerColor(kViolet);
151 gEve->AddElement(pointsD0toKpi);