P4PtEtaPhiMBase Node1 P4PtEtaPhiMBase + ~P4PtEtaPhiMBase() + px() + py() + pz() + e() + p() + p2() + m2() + et() + iPt() and 14 more... Node2 I4Momentum + ~I4Momentum() + px() + py() + pz() + m() + m2() + p() + p2() + eta() + rapidity() and 18 more... Node2->Node1