PWG3/vertexingHF/AliAnalysisTaskSEBkgLikeSignD0.h

   1 #ifndef AliAnalysisTaskSEBkgLikeSignD0_H
   2 #define AliAnalysisTaskSEBkgLikeSignD0_H
   3
   4 /* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
   5  * See cxx source for full Copyright notice                               */
   6
   7 /* $Id$ */
   8
   9 //*************************************************************************
  10 // Class AliAnalysisTaskSEBkgLikeSignD0
  11 // AliAnalysisTaskSE for reading both reconstructed D0 -> Kpi candidates
  12 // and like sign pairs and for drawing corresponding distributions
  13 // Author: C.Di Giglio, carmelo.digiglio@ba.infn.it
  14 //*************************************************************************
  15
  16 #include <TROOT.h>
  17 #include <TSystem.h>
  18 #include <TList.h>
  19 #include <TH1F.h>
  20 #include <TH2F.h>
  21
  22 #include "AliAnalysisTaskSE.h"
  23 #include "AliAnalysisVertexingHF.h"
  24
  25 class AliAnalysisTaskSEBkgLikeSignD0 : public AliAnalysisTaskSE
  26 {
  27  public:
  28
  29   AliAnalysisTaskSEBkgLikeSignD0();
  30   AliAnalysisTaskSEBkgLikeSignD0(const char *name);
  31   virtual ~AliAnalysisTaskSEBkgLikeSignD0();
  32
  33
  34   // Implementation of interface methods
  35   virtual void UserCreateOutputObjects();
  36   virtual void Init();
  37   virtual void LocalInit() {Init();}
  38   virtual void UserExec(Option_t *option);
  39   virtual void Terminate(Option_t *option);
  40
  41  private:
  42
  43   AliAnalysisTaskSEBkgLikeSignD0(const AliAnalysisTaskSEBkgLikeSignD0 &source);
  44   AliAnalysisTaskSEBkgLikeSignD0& operator=(const AliAnalysisTaskSEBkgLikeSignD0& source);
  45
  46   TList   *fOutput;                //! list send on output slot 0
  47   TH1F    *fHistMassD0;            //! output histograms
  48   TH1F    *fHistMassLS;            //!
  49   TH1F    *fHistCtsD0;             //! Cosine of decay angle
  50   TH1F    *fHistCtsLS;             //!
  51   TH1F    *fHistCtsLSpos;          //!
  52   TH1F    *fHistCtsLSneg;          //!
  53   TH1F    *fHistCPtaD0;            //! Cosine of pointing angle
  54   TH1F    *fHistCPtaLS;            //!
  55   TH1F    *fHistd0d0D0;            //! Product of impact parameters
  56   TH1F    *fHistd0d0LS;            //!
  57   TH1F    *fHistDCAD0;             //! Distance of closest approach
  58   TH1F    *fHistDCALS;             //! like-sign
  59   AliAnalysisVertexingHF *fVHF;    // Vertexer heavy flavour (used to pass the cuts)
  60   TH1F *fNentries;                 //! histogram with number of events
  61   Int_t fTotPosPairs;              //
  62   Int_t fTotNegPairs;              // normalization
  63   Double_t fLsNormalization;       //
  64
  65   ClassDef(AliAnalysisTaskSEBkgLikeSignD0,1); // comparison of unlike-sign and like-sign background for D0->Kpi
  66 };
  67
  68 #endif