Meson spectroscopy in a confining theory via AdS/CFT

TL;DR

This paper investigates meson behavior in a strongly coupled plasma using AdS/CFT, focusing on instanton effects, dispersion relations, and energy loss, revealing how instanton influence diminishes at high energies.

Contribution

It introduces a study of meson dispersion relations and energy loss in a plasma with instanton effects using AdS/CFT, highlighting the energy-dependent impact of instantons.

Findings

Instanton effects diminish at higher energies.

Dispersion relations of mesons are analyzed in a plasma.

Profile functions relate to quark energy loss in plasma.

Abstract

Instanton effects may have implications for hadronization of quark-gluon plasma as it cools. Here we study dispersion relations of mesons in a strongly coupled plasma with an instanton background present. It will be shown that at higher energies the instanton effect diminishes and some comments on the limiting velocity of mesons in the plasma. the profile function of mesons on the gravity side is considered also because of its relevance to energy loss of quark in plasma.