【As is well known, at the beginning of this year, Galman and Neyman proposed the“octuple method“ for classifying hadrons using the SU (3) symmetry of strong interactions】。
【This classification is very similar to the classification of elements (atoms) in the Mendeleev periodic table. mathematically, they correspond to different representations of SU (3) symmetric groups, which means that all discovered hadrons at that time can be correctly filled in the corresponding SU (3) group representation graph. The eight fold classification well illustrates the regularity of static properties such as spin, parity, charge, singularity, and mass of hadrons that have been discovered】