Double-$\hat{I}›$ hypernuclei in the relativistic mean-field theory

Abstract

We study the properties of double-$\hat{I}›$ hypernuclei in the relativistic mean-field theory, which has been successfully used for the description of stable and unstable nuclei. With the meson-hyperon couplings determined by the experimental binding energies of single-$\hat{I}›$ hypernuclei, we present a self-consistent calculation of double-$\hat{I}›$ hypernuclei in the relativistic mean-field theory, and discuss the influence of hyperons on the nuclear core. The contribution of two mesons with dominant strange quark components (scalar $\ddot{I}{ƒ}^{\ast }$ and vector $\ddot{I}•$) to the $\hat{I}›\hat{I}›$ binding energy of double-$\hat{I}›$ hypernuclei is examined.

12 pages, 2 figures