Theoretical and Experimental Challenges in Flavour Hadrons, Heavy Quarkonia and Multiquark Physics
One of the primary theoretical efforts in hadron physics is to understand the nature of hadrons and a great deal of research activity revolves around two fundamental questions: what constituents are the hadrons made of and how does QCD, the strong interaction component of the Standard Model, produce them? To understand the measurable content of QCD, hadron spectroscopy is valuable and time-honored tool.
Experimental investigations of hadron structure and spectrum via hadron-hadron scattering processes, photon-, meson- and electro-production from nucleons at worldwide facilities have produced an enormous growth of available data that vastly improved our knowledge of baryon and meson spectrum, establishing the existence of new states of matter. Even so, many observed states remain puzzling and can’t be explained. This stimulates and motivates for new searches and ideas to obtain their nature. The existing and planned facilities, e.g. FAIR, NICA, J-PARC upgraded represent an excellent tool to provide it.