xAODTTbarWithJpsimumuFilter.h

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/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/
#ifndef GeneratorFilters_XAODTTbarWithJpsimumuFilter_H
#define GeneratorFilters_XAODTTbarWithJpsimumuFilter_H
 
#include "GeneratorModules/GenFilter.h"
 
#include "xAODTruth/TruthEvent.h"
#include "xAODTruth/TruthEventContainer.h"
#include "xAODTruth/TruthParticle.h"
 
 
class xAODTTbarWithJpsimumuFilter: public GenFilter {
 public:
  xAODTTbarWithJpsimumuFilter(const std::string& fname, ISvcLocator* pSvcLocator);
  virtual ~xAODTTbarWithJpsimumuFilter();
  virtual StatusCode filterInitialize();
  virtual StatusCode filterFinalize();
  virtual StatusCode filterEvent();
 
 private:
 
  bool m_selectJpsi;
  //bool m_useMuonDecay;
  //bool m_useElectronDecay;
  double m_JpsiPtMinCut;
  double m_JpsiEtaMaxCut;
 
  // method to check if Jpsi decays into pair of leptons
  bool isLeptonDecay(const xAOD::TruthParticle* part, int type) const;  
 
  // method to check if Jpsi pass some selection criteria
  bool passJpsiSelection(const xAOD::TruthParticle* part) const;
 
};
 
#endif