Open strange meson $K^\pm_1$ in hot and dense nuclear matter

TL;DR

This paper investigates how the properties of strange $K^_1$ mesons change in hot and dense nuclear matter using a combined approach of chiral SU(3) models and QCD sum rules, shedding light on chiral symmetry restoration.

Contribution

It introduces a novel method combining chiral SU(3) model and QCD sum rules to evaluate in-medium properties of strange mesons.

Findings

In-medium mass of $K^_1$ meson decreases in nuclear matter.

Medium modifications of gluon and quark condensates are quantified.

Results provide insights into chiral symmetry restoration in nuclear matter.

Abstract

Using the unification of the chiral SU(3) model and QCD sum rules, we deduce the in-medium properties of $K^\pm_1$ meson. Within the chiral SU(3) model, medium modified gluon and quark condensates are evaluated through their interactions with the scalar fields ($\sigma$, $\zeta$, $\delta$, and $\chi$). These condensates are further used as input in the Borel transformed equations of QCD sum rules to evaluate the in-medium mass of strange $K^\pm_1$ meson. The in-medium property of the above meson can be used to study the restoration of chiral symmetry in nuclear matter.