Unstable fragments

Studying in-medium hadron properties with HADES

“…His sample contained 8 mesonic, 14 nonmesonic, and 6 doubtful events. He had the following comment on the first available estimates of the Λ 0 binding energy: "The fact that the binding energy of the Λ 0 in tritium and helium nuclei is definitely lower than that of the neutron would suggest that the interaction mechanism between the Λ 0 and nucleons is probably different from that of nuclear forces between nucleons, since, if the forces acting between the Λ 0 and nucleons are supposed to be ordinary nuclear forces, one should expect the binding energy of the Λ 0 in a nucleus to be greater than that of a neutron, due to the greater mass of the Λ 0 and the non-operation of the Pauli exclusion principle between the Λ 0 and the neutron" [68].…”