Dynamically Generated $\Xi (1690)$

Abstract

We show that the $\Xi (1690)$ resonance can be dynamically generated in the $s$-wave $\bar{K}\Sigma$-$\bar{K}\Lambda$-$\pi \Xi$-$\eta \Xi$ coupled-channels chiral unitary approach. In our model, the $\Xi (1690)$ resonance appears near the $\bar{K}\Sigma$ threshold as a $\bar{K}\Sigma$ molecular state and the experimental data are reproduced well. We discuss properties of the dynamically generated $\Xi (1690)$.

Comments: 4 pages, 4 EPS figures, talk given at the 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015), Tohoku, Japan, 7-12 Sep. 2015