Importance of Mixing for Exotic Baryons

TL;DR

This paper explores how mixing effects influence the properties of exotic baryons, particularly their decay widths and mass predictions, within the quark soliton model framework.

Contribution

It introduces a detailed analysis of mixing between exotic antidecuplet and Roper octet baryons and discusses the resulting phenomenological implications.

Findings

Small decay widths explained by the quark soliton model

Mixing with Roper octet affects baryon properties

Predictions of light and narrow exotic baryons

Abstract

Exotic antidecuplet baryons are predicted to be not only surprisingly light but also very narrow. First we explain how small decay width arises in the quark soliton model. Next, we study possible mixing of exotic antidecuplet with Roper octet and discuss its phenomenological consequences.