egammaTruthAssociationAlg.cxx File Reference

#include "egammaTruthAssociationAlg.h"
#include "StoreGate/ReadHandle.h"
#include "StoreGate/WriteDecorHandle.h"
#include "StoreGate/WriteHandle.h"
#include "xAODCaloEvent/CaloClusterContainer.h"
#include "xAODEgamma/ElectronContainer.h"
#include "xAODEgamma/PhotonContainer.h"
#include "xAODEgamma/EgammaxAODHelpers.h"
#include "xAODTruth/xAODTruthHelpers.h"
#include "TruthUtils/HepMCHelpers.h"
#include <memory>

Go to the source code of this file.

Typedefs
using	TruthLink_t = ElementLink<xAOD::TruthParticleContainer>
using	ClusterLink_t = ElementLink<xAOD::CaloClusterContainer>
using	ElectronLink_t = ElementLink<xAOD::ElectronContainer>
using	PhotonLink_t = ElementLink<xAOD::PhotonContainer>

Functions
template<>
egammaTruthAssociationAlg::MCTruthInfo_t	egammaTruthAssociationAlg::particleTruthClassifier< xAOD::Electron > (const EventContext &ctx, const xAOD::Electron *electron) const
	Template specialisation for electrons: second pass based on the cluster to find true photons.

Typedef Documentation

ClusterLink_t

using ClusterLink_t = ElementLink<xAOD::CaloClusterContainer>

Definition at line 53 of file egammaTruthAssociationAlg.cxx.

ElectronLink_t

using ElectronLink_t = ElementLink<xAOD::ElectronContainer>

Definition at line 54 of file egammaTruthAssociationAlg.cxx.

PhotonLink_t

using PhotonLink_t = ElementLink<xAOD::PhotonContainer>

Definition at line 55 of file egammaTruthAssociationAlg.cxx.

TruthLink_t

using TruthLink_t = ElementLink<xAOD::TruthParticleContainer>

Definition at line 52 of file egammaTruthAssociationAlg.cxx.

Function Documentation

egammaTruthAssociationAlg::particleTruthClassifier< xAOD::Electron >()

template<>

egammaTruthAssociationAlg::MCTruthInfo_t egammaTruthAssociationAlg::particleTruthClassifier< xAOD::Electron >	(	const EventContext &	ctx,
		const xAOD::Electron *	electron ) const

Template specialisation for electrons: second pass based on the cluster to find true photons.

Definition at line 337 of file egammaTruthAssociationAlg.cxx.

{
  MCTruthInfo_t info{};
  MCTruthPartClassifier::Info mcinfo(ctx);
  auto ret = m_mcTruthClassifier->particleTruthClassifier(electron, &mcinfo);
  if (ret.first == MCTruthPartClassifier::Unknown &&
      !xAOD::EgammaHelpers::isFwdElectron(electron) &&
      electron->caloCluster()) {
    ATH_MSG_DEBUG("Trying cluster-based truth classification for electron");
    ret = m_mcTruthClassifier->particleTruthClassifier(electron->caloCluster(),&mcinfo);
  }
  info.genPart = mcinfo.genPart;
  info.first = ret.first;
  info.second = ret.second;
  return info;
}