Double-$\Lambda$ hypernuclei in the relativistic mean-field theory

Abstract

We study the properties of double-$\Lambda$ 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-$\Lambda$ hypernuclei, we present a self-consistent calculation of double-$\Lambda$ 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 ${\sigma }^{\ast }$ and vector $\varphi$) to the $\Lambda \Lambda$ binding energy of double-$\Lambda$ hypernuclei is examined.

12 pages, 2 figures

Cited by in corpus (5)

• Deformation of Lambda hypernuclei
• Influence of the hadronic equation of state on the hadron-quark phase transition in neutron stars
• The relativistic entrainment matrix of a superfluid nucleon-hyperon mixture at zero temperature
• Properties of hyperonic matter in strong magnetic fields
• Quark-meson coupling model for antikaon condensation in neutron star matter with strong magnetic fields