EgammaFSRForMuonsCollectorAlg.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/

//   EgammaFSRForMuonsCollectorAlg
//   Author: RD Schaffer, R.D.Schaffer@cern.ch
//   Algorithm to collect photons and electrons which close in dR
//   to muons as FSR candidates
 
#ifndef ASG_ANALYSIS_ALGORITHMS_EGAMMA_FSR_FOR_MUONS_COLLECTOR_ALG_H
#define ASG_ANALYSIS_ALGORITHMS_EGAMMA_FSR_FOR_MUONS_COLLECTOR_ALG_H
 
#include <AnaAlgorithm/AnaAlgorithm.h>
#include <xAODBase/IParticleContainer.h>
#include "xAODMuon/MuonContainer.h"
#include <SystematicsHandles/SysReadHandle.h>
#include <SystematicsHandles/SysWriteDecorHandle.h>
#include <SelectionHelpers/SysReadSelectionHandle.h>
 
 
namespace CP
{
    class EgammaFSRForMuonsCollectorAlg final : public EL::AnaAlgorithm
    {
    public:
        using EL::AnaAlgorithm::AnaAlgorithm;
 
        StatusCode initialize() override;
        StatusCode execute(const EventContext& ctx) override;
 
    private:

 
        Gaudi::Property<float> m_dRMax{this, "deltaR_Max", 0.2, "DeltaR max for accepting a particle when comparing to compareParticles"};

        SysListHandle m_systematicsList {this};
 
        SysReadHandle<xAOD::IParticleContainer> m_egammaContKey{this, "ElectronOrPhotonContKey", "", "Electrons or photons for dR comparison"};
 
        SysReadHandle<xAOD::MuonContainer> m_muonContKey{this, "MuonContKey", "AnalysisMuons", "Muons to compare with for selecting FSR"};

        SysReadSelectionHandle m_wpSelection{this, "wpSelection", "", "the input WP selection to OR with FSR"};

        SysWriteDecorHandle<char> m_outputDec{this, "selectionDecoration", "", "the output combined WP||FSR selection"};
 
        Gaudi::Property<bool> m_vetoFSR {this, "vetoFSR", false, "boolean to revert FSR logic to rather veto FSR electrons or photons"};
 
    };
}
#endif