A relativistic mean field study of multi-strange system

TL;DR

This study uses relativistic mean field theory to analyze properties and stability of multi-strange hypernuclei across a wide mass range, revealing effects of hyperons on nuclear structure and potential stable configurations.

Contribution

It provides a comprehensive RMF-based analysis of multi-strange hypernuclei, including stability, density profiles, and hyperon effects, across light to superheavy nuclei, which is novel.

Findings

Hyperons significantly alter spin-orbit potentials.

Certain multi-strange hypernuclei may be stable against strong decay.

Hypernuclei exhibit bubble and halo structures.

Abstract

We study the binding energies, radii, single-particle energies, spin-orbit potential and density profile for multi-strange hypernuclei in the range of light mass to superheavy region within the relativistic mean field (RMF) theory. The stability of multi-strange hypernuclei as a function of introduced hyperons ($\Lambda$ and $\Sigma$) is investigated. The neutron, lambda and sigma mean potentials are presented for light to superheavy hypernuclei. The inclusion of hyperons affects the nucleon, lambda and sigma spin-orbit potentials significantly. The bubble structure of nuclei and corresponding hypernuclei is studied. The nucleon and lambda halo structure are also investigated. A large class of bound multi-strange systems formed from the combination of nucleons and hyperons (n, p, $\Lambda$, $\Sigma^+$ and n, p, $\Lambda$, $\Sigma^-$) is suggested in the region of superheavy hypernuclei which might be stable against the strong decay. These multi-strange systems might be produced in heavy-ion reactions.