Exotic hadrons − with a brief overview of hadron-nuclear physics in Japan

Abstract

In the first part of my talk, I will present an overview on hadron and nuclear physics in Japan. Activities using large-scale accelerators and super-computers are introduced. In the second part of my talk, I will discuss exotic hadrons that are being found recently and expected to have structures beyond the minimal ones of the quark model, baryons of three quarks and mesons of a quark and anti-quark. The discussions are in the forefront of the strong interaction physics based on quantum chromodynamics (QCD) at low energies, that is the basis of the formation of the matter.