Exploration of In-Medium Hyperon-Nucleon Interactions

TL;DR

This paper investigates how hyperon-nucleon interactions are modified within nuclear media, using a boson-exchange model and Bethe-Goldstone equation to analyze density-dependent changes across strangeness channels.

Contribution

It introduces a model for in-medium hyperon-nucleon interactions based on SU(3) symmetry and explores their density dependence through Bethe-Goldstone calculations.

Findings

Density dependence significantly alters low energy parameters.

Medium density changes affect different strangeness channels distinctly.

The approach provides insights into hyperon interactions in nuclear matter.

Abstract

The study focuses on exploring the changes in the hyperon-baryon interaction at various nuclear densities. This approach starts by building a vacuum hyperon-nucleon interaction model based on Boson -Exchange maintaining SU(3) flavor symmetry. Bethe-Goldstone equation is then explored to investigate the medium properties over the bare interaction. A detailed investigation of the density dependence revealed clear changes in the low energy parameters with the variation of the medium density shown for different strangeness channels.