Compositeness of Hadrons and Near-Threshold Dynamics

Abstract

We present the recent developments in the studies of the structure of hadron resonances, focusing on the compositeness in terms of the hadronic degrees of freedom. We discuss the model dependence of the compositeness, and show that the structure of the near-threshold bound states and resonances is model-independently determined. The applications to various hadrons are summarized.

Comments: 9 pages, talk given at The 10th International Workshop on the Physics of Excited Nucleons (NSTAR2015) May 25-28, 2015, Osaka, Japan, to appear in JPS Conf. Proc