1 #ifndef AliAnalysisTaskSEBkgLikeSignJPSI_H
2 #define AliAnalysisTaskSEBkgLikeSignJPSI_H
4 /* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
7 //*************************************************************************
8 // Class AliAnalysisTaskSEBkgLikeSignJPSI
9 // AliAnalysisTaskSE for reading both reconstructed JPSI -> ee candidates
10 // and like sign pairs and for drawing corresponding distributions
11 // Author: C.Di Giglio, carmelo.digiglio@ba.infn.it
12 //*************************************************************************
20 #include "AliAnalysisTaskSE.h"
21 #include "AliAnalysisVertexingHF.h"
23 class AliAnalysisTaskSEBkgLikeSignJPSI : public AliAnalysisTaskSE
27 AliAnalysisTaskSEBkgLikeSignJPSI();
28 AliAnalysisTaskSEBkgLikeSignJPSI(const char *name);
29 virtual ~AliAnalysisTaskSEBkgLikeSignJPSI();
32 // Implementation of interface methods
33 virtual void UserCreateOutputObjects();
35 virtual void LocalInit() {Init();}
36 virtual void UserExec(Option_t *option);
37 virtual void Terminate(Option_t *option);
41 AliAnalysisTaskSEBkgLikeSignJPSI(const AliAnalysisTaskSEBkgLikeSignJPSI &source);
42 AliAnalysisTaskSEBkgLikeSignJPSI& operator=(const AliAnalysisTaskSEBkgLikeSignJPSI& source);
44 TList *fOutput; //! list send on output slot 0
45 TH1F *fHistMassJPSI; //! output histograms
46 TH1F *fHistMassLS; //!
47 TH1F *fHistCtsJPSI; //! Cosine of decay angle
49 TH1F *fHistCtsLSpos; //!
50 TH1F *fHistCtsLSneg; //!
51 TH1F *fHistCPtaJPSI; //! Cosine of pointing angle
52 TH1F *fHistCPtaLS; //!
53 TH1F *fHistd0d0JPSI; //! Product of impact parameters
54 TH1F *fHistd0d0LS; //!
55 TH1F *fHistDCAJPSI; //! Distance of closest approach
56 TH1F *fHistDCALS; //! like-sign
57 AliAnalysisVertexingHF *fVHF; // Vertexer heavy flavour (used to pass the cuts)
59 Int_t fTotPosPairs; //
60 Int_t fTotNegPairs; // normalization
61 Double_t fLsNormalization; //
63 ClassDef(AliAnalysisTaskSEBkgLikeSignJPSI,1); // comparison of unlike-sign and like-sign background for J/psi->ee