Relativistic mean-field calculations of Lambda and Sigma hypernuclei.

摘要

Single-particle spectra of (Lambda) and (Sigma) hypernuclei are calculated within a relativistic mean-field theory. The hyperon couplings used are compatible with the (Lambda) binding in saturated nuclear matter, neutron-star masses and experimental data on (Lambda) levels in hypernuclei. Special attention is devoted to the spin-orbit potential for the hyperons and the influence of the (rho)-meson field (isospin dependent interaction).