A particle-hole model approach for hypernuclei

TL;DR

This paper develops a particle-hole model to describe the excitation spectra of single lambda hypernuclei, comparing it with mean-field calculations and experimental data, revealing that collective effects are less significant in hypernuclei than in ordinary nuclei.

Contribution

It introduces a particle-hole model specifically for hypernuclei and compares its predictions with mean-field results and experimental data.

Findings

Spectra of several hypernuclei are accurately described.

Collective phenomena are less prominent in hypernuclei.

Model results align well with experimental observations.

Abstract

A particle-hole model is developed to describe the excitation spectrum of single lambda hypernuclei and the possible presence of collective effects is explored by making a comparison with the mean-field calculations. Results for the spectra of 12C, 16O, 40Ca, 90Zr and 208Pb single lambda hypernuclei are shown. The comparison with the available experimental data is satisfactory. We find that collective phenomena are much less important in hypernuclei than in ordinary nuclei.