Hadron physics is a branch of particle physics that focuses on the study of hadrons, which are particles composed of quarks and held together by the strong nuclear force. Hadrons include protons, neutrons, and mesons, among others. Research in hadron physics involves studying the properties and behavior of hadrons, such as their masses, charges, and interactions with other particles. This field also investigates the internal structure of hadrons and the mechanisms by which they bind together. Hadron physics plays a crucial role in advancing our understanding of the fundamental forces and particles that make up the universe, as well as in exploring the properties of matter at a subatomic level. It has important implications for nuclear physics, astrophysics, and cosmology, and is a key area of research in high-energy physics.