Heavy-Quark Skyrmions

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.

Kaons in dense half-Skyrmion matter

“…In fact, the Callan-Klebanov model [5] that describes the hyperons as bound states of the fluctuating K − 's with an SU (2) soliton has been amazingly successful as recently reviewed in [6]. Here the Wess-Zumino term that encodes chiral anomalies plays a singularly important role in providing the binding of anti-kaons to an SU (2) soliton.…”