Multi-strange systems in relativistic mean fields

Abstract

Characteristics of multi-A hypernuclei are investigated within the relativistic mean-field theory. Both linear and nonlinear models and a variety of A couplings fitted to ordinary A hypernuclei have been investigated. All the parametrizations used in the present work predict qualitatively similar dependence of the studied quantities (rms radii, binding energies, densities) on a number of A hyperons.

Recent Progress in Quantum Hadrodynamics

“…One interesting goal of the study of strangeness in nuclei is to extrapolate to large |S|; the RMFT provides a convenient basis for this extrapolation, and this problem is examined in [Sc92,Do93,Ma93a,Sc93,Ga95]. A large class of bound, multi-strange objects is one distinct possibility raised by these studies.…”

Clusterization and deformation of multi- Λ hypernuclei within a relativistic mean-field model

“…The deformation of the Si hyper isotopes changes more drastically as a function of the Λ hyperon number. It is also seen that, as Λ hyperons in the p-shell orbitals are more weekly bound than the nucleons, their density spreads out more than that of nucleon in the deformed systems as well as in spherical systems [35][36][37]39].…”

Surface structure of strange superheavy nuclei

“…(18) is (21) where the angular dependence has now been integrated out. Since the contribution of the laplacian in Eq.…”

“…Theoretical investigations of multiple Λ hypernuclei indicate that they are bound and stable against strong decay. These studies produced systems with binding energies as low as -9 MeV corresponding to |S|/B ∼ 0.2 [21,22,23,24,25].…”