Decuplet baryons in a hot medium

TL;DR

This paper studies how the masses and residues of light decuplet baryons change with temperature using thermal QCD sum rules, finding they remain stable up to about 150 MeV before decreasing significantly.

Contribution

It applies thermal QCD sum rules to analyze the temperature dependence of decuplet baryons' properties, including additional operators in the Wilson expansion at finite temperature.

Findings

Mass and residue stable up to 150 MeV

Significant decrease beyond 150 MeV

Provides insights into baryon behavior in hot medium

Abstract

The thermal properties of the light decuplet baryons are investigated in the framework of the thermal QCD sum rules. In particular, the behavior of the mass and residue of the $\Delta$, $\Sigma^{*}$, $\Xi^{*}$ and $\Omega$ baryons with respect to temperature are analyzed taking into account the additional operators coming up in the Wilson expansion at finite temperature. It is found that the mass and residue of these particles remain overall unaffected up to $T\simeq150~MeV$ but, beyond this point, they start to diminish, considerably.