Ground states and excited states of hypernuclei in Relativistic Mean Field approach

TL;DR

This paper uses the Relativistic Mean Field theory with an extended FSU Gold force to study hypernuclei, successfully describing hyperon separation energies and spectra across the periodic table, including double-b4 hypernuclei.

Contribution

It introduces an extended RMF approach with a new hyperon-nucleon interaction fitted to experimental data, enabling comprehensive hypernuclear structure calculations.

Findings

Accurately describes hyperon separation energies.

Reproduces single-particle spectra of b4 hypernuclei.

Extends formalism to double-b4 hypernuclei.

Abstract

Hypernuclei have been studied within the framework of Relativistic Mean Field theory. The force FSU Gold has been extended to include hyperons. The effective hyperon-nucleon and nucleon-nucleon interactions have been obtained by fitting experimental energies in a number of hypernuclei over a wide range of mass. Calculations successfully describe various features including hyperon separation energy and single particle spectra of single-\Lambda hypernuclei throughout the periodic table. We also extend this formalism to double-\Lambda hypernuclei.