Heavy quark skyrmions

TL;DR

This paper reviews the theoretical modeling of heavy baryons as bound states of heavy mesons and solitons, emphasizing symmetries, finite mass effects, and comparisons with quark models and experiments.

Contribution

It introduces a framework combining chiral and heavy quark symmetries to describe heavy baryons as heavy-meson--soliton bound systems, including finite mass effects.

Findings

Heavy baryon spectra are consistent with quark model predictions.

Finite heavy quark mass effects influence the bound state properties.

Connections between hyperon and heavy baryon bound state approaches are discussed.

Abstract

The description of the heavy baryons as heavy-meson--soliton bound systems is reviewed. We outline how such bound systems arise from effective lagrangians that respect both chiral symmetry and heavy quark symmetry. Effects due to finite heavy quark masses are also discussed, and the resulting heavy baryon spectra are compared with existing quark model and empirical results. Finally, we address some issues related to a possible connection between the usual bound state approach to strange hyperons and that for heavier baryons.