CbmAnaJpsiTask.h

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/* Copyright (C) 2015-2017 Justus-Liebig-Universitaet Giessen, Giessen
   SPDX-License-Identifier: GPL-3.0-only
   Authors: Semen Lebedev, Adrian Amatus Weber, Elena Lebedeva [committer] */
 
#ifndef CBMJPSIANATASK
#define CBMJPSIANATASK
 
#include "CbmAnaJpsiCandidate.h"
#include "CbmAnaJpsiCuts.h"
#include "CbmAnaJpsiHist.h"
#include "CbmAnaJpsiKinematicParams.h"
#include "CbmGlobalTrack.h"
#include "CbmHistManager.h"
#include "CbmKFVertex.h"
#include "CbmRichRing.h"
#include "CbmTrdTrack.h"
#include "CbmVertex.h"
 
#include "FairTask.h"
 
#include "TClonesArray.h"
#include "TH1D.h"
#include "TH2D.h"
#include "TH3D.h"
 
#include <string>
#include <vector>
 
using namespace std;
 
class CbmAnaJpsiTask : public FairTask {
 
public:
  CbmAnaJpsiTask();
 
  virtual ~CbmAnaJpsiTask();
 
  virtual InitStatus Init();
 
  virtual void Exec(Option_t* option);
 
  virtual void Finish();
 
 
private:
  Int_t fEventNum;
 
  TClonesArray* fMcTracks;
  TClonesArray* fStsPoints;
  TClonesArray* fStsHits;
  TClonesArray* fStsTracks;
  TClonesArray* fStsTrackMatches;
  TClonesArray* fRichPoints;
  TClonesArray* fRichHits;
  TClonesArray* fRichRings;
  TClonesArray* fRichRingMatches;
  TClonesArray* fTrdPoints;
  TClonesArray* fTrdHits;
  TClonesArray* fTrdTracks;
  TClonesArray* fTrdTrackMatches;
  TClonesArray* fTofPoints;
  TClonesArray* fTofHits;
  TClonesArray* fTofHitsMatches;
  TClonesArray* fGlobalTracks;
  TClonesArray* fJpsiCandidates;  //output array of Jpsi candidates
 
 
  // Number of hits in the MC RICH ring
  std::map<Int_t, Int_t> fNofHitsInRingMap;
 
  CbmVertex* fPrimVertex;
  CbmKFVertex fKFVertex;
 
  std::vector<CbmAnaJpsiCandidate> fCandidates;  // array of JPsi candidates
 
  CbmAnaJpsiCuts fCuts;  //electron identification and analysis cuts
 
  Double_t fWeight;  // Multiplicity * Branching Ratio of J/Psi;
 
  CbmHistManager* fHM;
 
  Bool_t fUseTrd;
  Bool_t fUseTof;
 
  /*
       * \brief Creates 1D histograms for each analysis step.
       * \param[in] name Base name of the histograms.
       * \param[in] axisX X axis title.
       * \param[in] axisY Y axis title.
       * \param[in] nBins Number of bins for X axis in the histogram.
       * \param[in] min Minimum value for X axis.
       * \param[in] max Maximum value for X axis.
       */
  void CreateAnalysisStepsH1(const string& name, const string& axisX, const string& axisY, double nBins, double min,
                             double max);
 
  /*
       * \brief Creates 2D histograms for each analysis step.
       * \param[in] name Base name of the histograms.
       * \param[in] axisX X axis title.
       * \param[in] axisY Y axis title.
       * \param[in] axisZ Z axis title.
       * \param[in] nBinsX Number of bins for X axis in the histogram.
       * \param[in] minX Minimum value for X axis.
       * \param[in] maxX Maximum value for X axis.
       * \param[in] nBinsY Number of bins for Y axis in the histogram.
       * \param[in] minY Minimum value for Y axis.
       * \param[in] maxY Maximum value for Y axis.
       */
  void CreateAnalysisStepsH2(const string& name, const string& axisX, const string& axisY, const string& axisZ,
                             double nBinsX, double minX, double maxX, double nBinsY, double minY, double maxY);
 
 
  /*
   * \brief Creates 1D histograms for different track source types.
   * \param[in] name Base name of the histograms.
   * \param[in] axisX X axis title.
   * \param[in] axisY Y axis title.
   * \param[in] nBins Number of bins in the histogram.
   * \param[in] min Minimum value.
   * \param[in] max Maximum value.
   */
  void CreateSourceTypesH1(const string& name, const string& axisX, const string& axisY, double nBins, double min,
                           double max);
 
 
  /*
   * \brief Creates 2D histograms for different track source types.
   * \param[in] name Base name of the histograms.
   * \param[in] axisX X axis title.
   * \param[in] axisY Y axis title.
   * \param[in] axisZ Z axis title.
   * \param[in] nBinsX Number of bins for X axis in the histogram.
   * \param[in] minX Minimum value for X axis.
   * \param[in] maxX Maximum value for X axis.
   * \param[in] nBinsY Number of bins for Y axis in the histogram.
   * \param[in] minY Minimum value for Y axis.
   * \param[in] maxY Maximum value for Y axis.
   */
  void CreateSourceTypesH2(const string& name, const string& axisX, const string& axisY, const string& axisZ,
                           double nBinsX, double minX, double maxX, double nBinsY, double minY, double maxY);
 
  void CreateAnaStepsPairSourceH1(const string& name, const string& axisX, const string& axisY, double nBins,
                                  double min, double max);
 
  void InitHist();
 
  void FillRichRingNofHits();
 
  void MCPairs();
 
  void RichPmtXY();
 
  void FillCandidates();
 
  void AssignMcToCandidates();
 
  Bool_t IsMcTrackAccepted(Int_t mcTrackInd);
 
  void IsRecoTrackAccepted(CbmAnaJpsiCandidate* cand);
 
  void SingleParticleAcceptance();
 
  void PairMcAndAcceptance();
 
  void PairSource(CbmAnaJpsiCandidate* candP, CbmAnaJpsiCandidate* candM, CbmAnaJpsiAnalysisSteps step,
                  CbmAnaJpsiKinematicParams* parRec);
 
  void TrackSource(CbmAnaJpsiCandidate* cand, CbmAnaJpsiAnalysisSteps step, Int_t pdg);
 
  void FillPairHists(CbmAnaJpsiCandidate* candP, CbmAnaJpsiCandidate* candM, CbmAnaJpsiKinematicParams* parMc,
                     CbmAnaJpsiKinematicParams* parRec, CbmAnaJpsiAnalysisSteps step);
 
  void SignalAndBgReco();
 
  void IsElectron(Int_t globalTrackIndex, Double_t momentum, CbmAnaJpsiCandidate* cand);
 
 
  void IsMismatch(CbmAnaJpsiCandidate* cand);
 
  void DifferenceSignalAndBg();
 
  /*
     * \brief Copy candidates to the output array.
     */
  void CopyCandidatesToOutputArray();
 
 
  CbmAnaJpsiTask(const CbmAnaJpsiTask&);
 
  CbmAnaJpsiTask& operator=(const CbmAnaJpsiTask&);
 
 
  ClassDef(CbmAnaJpsiTask, 1)
};
 
#endif