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arXiv · 1406.4612

A relativistic mean field study of multi-strange system

M. Ikram·S. K. Singh·A. A. Usmani·S. K. Patra
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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.

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M. Ikram, S. K. Singh, A. A. Usmani, S. K. Patra. 2014-06-18. A relativistic mean field study of multi-strange system. https://doi.org/10.1142/s0218301314500529

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