Lambda binding energies in the Skyrme-Hartree-Fock approach with various $$\Lambda N$$ Λ N interactions
The European Physical Journal A(2022)
摘要
The Lambda binding energies
$$B_\Lambda $$
of
$$\Lambda $$
hypernuclei ranging from light to heavy masses are investigated systematically in the framework of the Skyrme-Hartree-Fock (SHF) approach. Calculations are performed with the combinations of the NN interactions SLy4 and SkI4 and various
$$\Lambda N$$
interactions, including the Skyrme-type forces and the microscopic forces. It is demonstrated that the Skyrme-type SLL4 and YMR forces can well describe the experimental data overall better compared to other Skyrme-type forces, while the microscopic interaction results deviate a bit from the experimental data. In addition, the shrinkage effects caused by
$$\Lambda $$
hyperon on the deformation indeed exist for the deformed light nuclei, while not for the heavy nuclei regardless of the
$$\Lambda N$$
interactions.
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