McAodTupleWriterTool::McAodParticles Node1 McAodTupleWriterTool ::McAodParticles + m_nParticles + m_m + m_ene + m_etcone50 Node2 std::array< double, s_nMax > + elements Node2->Node1 +m_etcone40 +m_etcone30 +m_px +m_etcone20 +m_py +m_etcone10 +m_pz +m_etcone70 +m_etcone45 +m_etcone60 ... Node3 std::array< int, s _nMax > + elements Node3->Node1 +m_status +m_pdgId +m_barcode