PWG3/vertexingHF/AliAnalysisTaskSEBkgLikeSignJPSI.h

   1 #ifndef AliAnalysisTaskSEBkgLikeSignJPSI_H
   2 #define AliAnalysisTaskSEBkgLikeSignJPSI_H
   3
   4 /* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
   5  * See cxx source for full Copyright notice                               */
   6
   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 //*************************************************************************
  13
  14 #include <TList.h>
  15 #include <TH1F.h>
  16 #include <TH2F.h>
  17
  18 #include "AliAnalysisTaskSE.h"
  19 #include "AliAnalysisVertexingHF.h"
  20
  21 class AliAnalysisTaskSEBkgLikeSignJPSI : public AliAnalysisTaskSE
  22 {
  23  public:
  24
  25   AliAnalysisTaskSEBkgLikeSignJPSI();
  26   AliAnalysisTaskSEBkgLikeSignJPSI(const char *name);
  27   virtual ~AliAnalysisTaskSEBkgLikeSignJPSI();
  28
  29
  30   // Implementation of interface methods
  31   virtual void UserCreateOutputObjects();
  32   virtual void Init();
  33   virtual void LocalInit() {Init();}
  34   virtual void UserExec(Option_t *option);
  35   virtual void Terminate(Option_t *option);
  36
  37  private:
  38
  39   AliAnalysisTaskSEBkgLikeSignJPSI(const AliAnalysisTaskSEBkgLikeSignJPSI &source);
  40   AliAnalysisTaskSEBkgLikeSignJPSI& operator=(const AliAnalysisTaskSEBkgLikeSignJPSI& source);
  41
  42   TList   *fOutput;                //! list send on output slot 0
  43   TH1F    *fHistMassJPSI;          // output histograms
  44   TH1F    *fHistMassLS;            //
  45   TH1F    *fHistCtsJPSI;           // Cosine of decay angle
  46   TH1F    *fHistCtsLS;             //
  47   TH1F    *fHistCtsLSpos;          //
  48   TH1F    *fHistCtsLSneg;          //
  49   TH1F    *fHistCPtaJPSI;          // Cosine of pointing angle
  50   TH1F    *fHistCPtaLS;            //
  51   TH1F    *fHistd0d0JPSI;          // Product of impact parameters
  52   TH1F    *fHistd0d0LS;            //
  53   TH1F    *fHistDCAJPSI;           // Distance of closest approach
  54   TH1F    *fHistDCALS;             //
  55   AliAnalysisVertexingHF *fVHF;    // Vertexer heavy flavour (used to pass the cuts)
  56
  57   Int_t fTotPosPairs;              //
  58   Int_t fTotNegPairs;              // normalization
  59   Double_t fLsNormalization;       //
  60
  61   ClassDef(AliAnalysisTaskSEBkgLikeSignJPSI,0); // comparison of unlike-sign and like-sign background for J/psi->ee
  62 };
  63
  64 #endif
  65