Speaker
Description
Understanding hadron spectrum emerging from QCD is one of the central issues in hadron physics. One of the challenging problems is to clarify the internal structure of the observed states whether they are conventional or exotic states. In this talk, I will review our recent activities to understand the excited states of hadron, including meson and baryon, within the chiral and light-front quark models. I will put an emphasis on the radial excitations that appear to follow flavor-independent hierarchies. Not only mass spectrum, but also other properties such as strong decay pattern, e.m. form factor, etc, will be discussed. We find that such a systematic study for various quark flavor contents provides useful constraints to their internal structure.
