We consider the multiplet structures, appearing in hadronic physics. The basic types of the multiplets revealed are parity doublets, chiral multiplets, and multispin-parity clusters. We elucidate a new type of isospin supermultiplets in the baryon sector. The creation of parity doublets, chiral multiplets and their interrelation with multispin-parity clusters has been uncovered. The role of chiral symmetry breaking and restoration in the formation of the hadronic spectra has been scrutinized.
Categories: hep-ph