AsgObjectScaleFactorAlg.cxx

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
#include <AsgAnalysisAlgorithms/AsgObjectScaleFactorAlg.h>
 
namespace CP
{
 
  StatusCode AsgObjectScaleFactorAlg ::
  initialize ()
  {
 
    ANA_CHECK (m_particlesHandle.initialize (m_systematicsList));
 
    for(const auto& sf : m_inScaleFactors)
      m_inSFHandles.emplace_back(sf, this);
    for(auto& handle : m_inSFHandles)
      ANA_CHECK(handle.initialize(m_systematicsList, m_particlesHandle));
 
    ANA_CHECK(m_outSFHandle.initialize(m_systematicsList, m_particlesHandle));
 
    ANA_CHECK (m_systematicsList.initialize());
    
    return StatusCode::SUCCESS;
  }
 
  StatusCode AsgObjectScaleFactorAlg ::
  execute ()
  {
 
    for (const auto& sys : m_systematicsList.systematicsVector())
    {
      const xAOD::IParticleContainer *particles = nullptr;
      ANA_CHECK (m_particlesHandle.retrieve (particles, sys));
      for (const xAOD::IParticle *particle : *particles)
      {
    float scaleFactor = 1.;
    for(const auto& sf : m_inSFHandles)
      scaleFactor *= sf.get(*particle, sys);
    
    m_outSFHandle.set(*particle, scaleFactor, sys);
      }
    }
 
    return StatusCode::SUCCESS;
  }
 
} // namespace