ParticleJetTools::LabelNames Node1 ParticleJetTools::LabelNames + doubleint + pt + pdgId + barcode + check() Node2 std::string Node2->Node1 +childPositionDPhi +childPt +Lxy +childPositionDEta +positionDPhi +singleint +childPdgId +positionDEta +dr +childLxy ... Node3 std::basic_string< char > Node3->Node2