EgammaTruthxAODHelpers.h

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// Dear emacs, this is -*- c++ -*-
 
/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
// $Id: EgammaTruthxAODHelpers.h 768706 2016-08-18 23:55:25Z christos $
#ifndef XAOD_EGAMMATRUTHXAODHELPERS_H
#define XAOD_EGAMMATRUTHXAODHELPERS_H
 
#include "xAODEgamma/EgammaFwd.h"
#include "xAODEgamma/ElectronFwd.h"
#include "xAODEgamma/PhotonFwd.h"
#include "xAODTracking/TrackParticleFwd.h"
#include "xAODTruth/TruthParticleContainer.h"
#include "xAODTruth/TruthParticle.h"
 
#include <cstddef>
#include <set>
 
namespace xAOD {
 
  namespace EgammaHelpers{

    const xAOD::Electron* getRecoElectron(const xAOD::TruthParticle*);

    const xAOD::Photon* getRecoPhoton(const xAOD::TruthParticle* particle);

    bool isTrueConvertedPhoton(const xAOD::Photon* ph, float maxRadius = 800.);

    bool isTrueConvertedPhoton(const xAOD::TruthParticle* truePh, float maxRadius = 800.);

    std::vector<const xAOD::TruthParticle*>
    getBkgElectronLineage(const xAOD::TruthParticle* truthel,
              const bool allTheWayBack = true);

    const xAOD::TruthParticle*
    getBkgElectronMother(const xAOD::Electron* el,
             const bool allTheWayBack = true);

    const xAOD::TruthParticle*
    getBkgElectronMother(const xAOD::TruthParticle* truthel,
             const bool allTheWayBack = true);

    std::vector<const xAOD::TruthParticle*>
    getBkgElectronLineage(const xAOD::Electron* el,
              const bool allTheWayBack = true);
 
  }// EgammaHelpers
 
} // namespace xAOD
 
#endif // XAOD_EGAMMAXAODHELPERS_H