DileptonInvariantMassSelectorAlg.h

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/*
   Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/

 
#ifndef EVENT_SELECTOR_DILEPTONINVARIANTMASSSELECTORALG_H
#define EVENT_SELECTOR_DILEPTONINVARIANTMASSSELECTORALG_H
 
// Algorithm includes
#include <AnaAlgorithm/AnaAlgorithm.h>
#include <AsgTools/PropertyWrapper.h>
#include <SystematicsHandles/SysReadHandle.h>
#include <SelectionHelpers/SysReadSelectionHandle.h>
#include <SelectionHelpers/SysWriteSelectionHandle.h>
 
// Framework includes
#include <xAODBase/IParticleContainer.h>
#include <xAODEventInfo/EventInfo.h>
 
#include <EventSelectionAlgorithms/SignEnums.h>
 
namespace CP {

 
  class DileptonInvariantMassSelectorAlg final : public EL::AnaAlgorithm {

    public:
      DileptonInvariantMassSelectorAlg(const std::string &name, ISvcLocator *pSvcLocator);
      virtual StatusCode initialize() override;
      virtual StatusCode execute(const EventContext& ctx) override;
 
    private:

      Gaudi::Property<float> m_mllref {this, "refMLL", 0., "MLL cut (in MeV)"};

      Gaudi::Property<std::string> m_sign {this, "sign", "SetMe", "comparison sign to use"};

      Gaudi::Property<bool> m_useDressedProperties{this, "useDressedProperties", false,
        "whether to use dressed electron and muon kinematics rather than simple "
        "P4 kinematics"};

      SignEnum::ComparisonOperator m_signEnum{};

      CP::SysListHandle m_systematicsList {this};

      CP::SysReadHandle<xAOD::IParticleContainer> m_electronsHandle {
        this, "electrons", "", "the electron container to use"
      };

      CP::SysReadSelectionHandle m_electronSelection {
        this, "electronSelection", "", "the selection on the input electrons"
      };

      CP::SysReadHandle<xAOD::IParticleContainer> m_muonsHandle {
        this, "muons", "", "the muon container to use"
      };

      CP::SysReadSelectionHandle m_muonSelection {
        this, "muonSelection", "", "the selection on the input muons"
      };

      CP::SysReadHandle<xAOD::EventInfo> m_eventInfoHandle {
        this, "eventInfo", "EventInfo", "the EventInfo container to read selection decisions from"
      };

      CP::SysReadSelectionHandle m_preselection {
        this, "eventPreselection", "SetMe", "name of the preselection to check before applying this one"
      };

      CP::SysWriteSelectionHandle m_decoration {
        this, "decorationName", "SetMe", "decoration name for the MLL selector"
      };
 
  }; // class
} // namespace CP
 
#endif // EVENT_SELECTOR_DILEPTONINVARIANTMASSSELECTORALG_H