Kaon and antikaon optical potentials in isospin asymmetric hyperonic matter

TL;DR

This paper investigates how kaons and antikaons' energies are affected by isospin asymmetric hyperonic matter using a chiral SU(3) model, with implications for heavy ion collisions and neutron star physics.

Contribution

It introduces a detailed analysis of hyperons' effects on kaon and antikaon medium modifications in asymmetric strange hadronic matter.

Findings

Hyperons significantly influence kaon and antikaon energy modifications.

Medium effects are more pronounced in matter with high strangeness fractions.

Results are relevant for future heavy ion collision experiments at FAIR.

Abstract

The medium modifications of the energies of kaons and antikaons in isospin asymmetric hyperonic matter are investigated using a chiral SU(3) model. The isospin dependent medium effects, are important for asymmetric heavy ion collision experiments, as well as relevant for the neutron star phenomenology as the bulk matter in the interior of the neutron star is highly isospin asymmetric. The effects of hyperons on the medium modifications of the kaons and antikaons in the strange hadronic matter are investigated in the present work and are seen to be appreciable for hadronic matter with large strangeness fractions. The study of the K-mesons in the asymmetric strange hadronic matter can be especially relevant for the compressed strange baryonic matter which can result from asymmetric heavy ion collision experiments in the future accelerator facility FAIR at GSI.