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. *
6 * Permission to use, copy, modify and distribute this software and its *
7 * documentation strictly for non-commercial purposes is hereby granted *
8 * without fee, provided that the above copyright notice appears in all *
9 * copies and that both the copyright notice and this permission notice *
10 * appear in the supporting documentation. The authors make no claims *
11 * about the suitability of this software for any purpose. It is *
12 * provided "as is" without express or implied warranty. *
13 **************************************************************************/
14 //*************************************************************************
15 // Class AliAnalysisTaskMEVertexingHF
16 // AliAnalysisTaskME for event mixing, building the background for
17 // heavy-flavour decay candidates
18 // Author: R.Romita, r.romita@gsi.de
19 //*************************************************************************
24 #include "TObjArray.h"
30 #include "AliVEvent.h"
31 #include "AliVVertex.h"
32 #include "AliAODEvent.h"
33 #include "AliESDEvent.h"
34 #include "AliAnalysisVertexingHF.h"
35 #include "AliMixedEvent.h"
36 #include "AliAnalysisTaskMEVertexingHF.h"
37 #include "AliAnalysisManager.h"
38 #include "AliMultiEventInputHandler.h"
40 ClassImp(AliAnalysisTaskMEVertexingHF)
42 //________________________________________________________________________
43 AliAnalysisTaskMEVertexingHF::AliAnalysisTaskMEVertexingHF(const char *name) :
44 AliAnalysisTaskME(name),
50 fCharm3ProngTClArr(0),
51 fCharm4ProngTClArr(0),
54 fLikeSign2ProngTClArr(0),
55 fLikeSign3ProngTClArr(0)
59 //________________________________________________________________________
60 void AliAnalysisTaskMEVertexingHF::Init()
63 // Instanciates vHF and loads its parameters
64 // Some parameters are changed
66 if(gROOT->LoadMacro("ConfigVertexingHF.C")) {
67 printf("AnalysisTaskMEVertexingHF::Init() \n Using $ALICE_ROOT/PWG3/vertexingHF/ConfigVertexingHF.C\n");
68 gROOT->LoadMacro("$ALICE_ROOT/PWG3/vertexingHF/ConfigVertexingHF.C");
70 fvHF = (AliAnalysisVertexingHF*)gROOT->ProcessLine("ConfigVertexingHF()");
71 fvHF->SetMixEventOn();
74 if(fvHF->GetLikeSign()) {
75 printf("WARNING: fLikeSign will be switched off!");
76 fvHF->SetLikeSignOff();
78 if(fvHF->GetRecoPrimVtxSkippingTrks() || fvHF->GetRmTrksFromPrimVtx()){
79 fvHF->UnsetRecoPrimVtxSkippingTrks();
80 printf("WARNING: if on, fRecoPrimVtxSkippingTrks and fRmTrksFromPrimVtx will be switched off!\n");
83 AliAnalysisManager::GetAnalysisManager()->RegisterExtraFile("AliAOD.VertexingHF.root");
87 //________________________________________________________________________
88 void AliAnalysisTaskMEVertexingHF::UserCreateOutputObjects()
90 // Create the output container
94 Fatal("UserCreateOutputObjects", "This task needs an AOD handler");
99 printf("AnalysisTaskMEVertexingHF::UserCreateOutPutData() \n ERROR! no fvHF!\n");
102 fVerticesHFTClArr = new TClonesArray("AliAODVertex", 0);
103 fVerticesHFTClArr->SetName("VerticesHF");
104 AddAODBranch("TClonesArray", &fVerticesHFTClArr);
105 if(fvHF->GetD0toKpi()) {
106 fD0toKpiTClArr = new TClonesArray("AliAODRecoDecayHF2Prong", 0);
107 fD0toKpiTClArr->SetName("D0toKpi");
108 AddAODBranch("TClonesArray", &fD0toKpiTClArr);
110 if(fvHF->GetJPSItoEle()) {
111 fJPSItoEleTClArr = new TClonesArray("AliAODRecoDecayHF2Prong", 0);
112 fJPSItoEleTClArr->SetName("JPSItoEle");
113 AddAODBranch("TClonesArray", &fJPSItoEleTClArr);
115 if(fvHF->Get3Prong()) {
116 fCharm3ProngTClArr = new TClonesArray("AliAODRecoDecayHF3Prong", 0);
117 fCharm3ProngTClArr->SetName("Charm3Prong");
118 AddAODBranch("TClonesArray", &fCharm3ProngTClArr);
120 if(fvHF->Get4Prong()) {
121 fCharm4ProngTClArr = new TClonesArray("AliAODRecoDecayHF4Prong", 0);
122 fCharm4ProngTClArr->SetName("Charm4Prong");
123 AddAODBranch("TClonesArray", &fCharm4ProngTClArr);
126 if(fvHF->GetDstar()) {
127 fDstarTClArr = new TClonesArray("AliAODRecoCascadeHF", 0);
128 fDstarTClArr->SetName("Dstar");
129 AddAODBranch("TClonesArray", &fDstarTClArr);
132 if(fvHF->GetCascades()){
133 fCascadesTClArr = new TClonesArray("AliAODRecoCascadeHF", 0);
134 fCascadesTClArr->SetName("CascadesHF");
135 AddAODBranch("TClonesArray", &fCascadesTClArr);
138 if(fvHF->GetLikeSign()) {
139 fLikeSign2ProngTClArr = new TClonesArray("AliAODRecoDecayHF2Prong", 0);
140 fLikeSign2ProngTClArr->SetName("LikeSign2Prong");
141 AddAODBranch("TClonesArray", &fLikeSign2ProngTClArr);
144 if(fvHF->GetLikeSign() && fvHF->Get3Prong()) {
145 fLikeSign3ProngTClArr = new TClonesArray("AliAODRecoDecayHF3Prong", 0);
146 fLikeSign3ProngTClArr->SetName("LikeSign3Prong");
147 AddAODBranch("TClonesArray", &fLikeSign3ProngTClArr);
153 //________________________________________________________________________
154 void AliAnalysisTaskMEVertexingHF::UserExec(Option_t *)
156 // Execute analysis for current event:
157 // first build the mixed event, compute the new primary vtx
158 // then heavy flavor vertexing
160 Int_t nev = fInputHandler->GetBufferSize();
161 fMixedEvent = new AliMixedEvent();
162 fMixedEvent->Reset();
164 TString primTitleFirst;
165 AliAODVertex *vtxCopy=0;
167 TObjArray *vertices=new TObjArray(nev);
168 for (Int_t iev = 0; iev < nev; iev++) {
169 AliAODEvent *evt = (AliAODEvent*)GetEvent(iev);
170 if(!evt) {delete vertices;return;}
171 AliAODVertex *evtVtx=(AliAODVertex*)evt->GetPrimaryVertex();
172 if(!evtVtx) {delete vertices;return;}
173 primTitle = evtVtx->GetTitle();
174 Int_t nContrib=evtVtx->GetNContributors();
175 if(!primTitle.Contains("VertexerTracks") || nContrib<=0) {
180 vtxCopy=new AliAODVertex(*evtVtx);
181 primTitleFirst=evtVtx->GetTitle();
184 fMixedEvent->AddEvent(evt);
186 vertices->AddLast(vtxCopy);
191 Double_t vtxPos[3]={0.,0.,0.},vtxSigma[3]={0.,0.,0.};
192 Int_t nContributors[1]={0};
194 Bool_t primaryOk=fMixedEvent->ComputeVtx(vertices,vtxPos,vtxSigma,nContributors);
201 Int_t contribCopy=nContributors[0];
202 AliVVertex* newVertex=new AliESDVertex(vtxPos,vtxSigma,chi2,contribCopy);
203 newVertex->SetTitle(primTitleFirst.Data());
204 fMixedEvent->SetPrimaryVertex(newVertex);
210 fvHF->FindCandidates(fMixedEvent,
218 fLikeSign2ProngTClArr,
219 fLikeSign3ProngTClArr);
225 //________________________________________________________________________
226 void AliAnalysisTaskMEVertexingHF::Terminate(Option_t *)
228 // Terminate analysis