SU(4) symmetry of the dynamical QCD string and genesis of hadron spectra
Institute of Physics, University of Graz, A-8010, Graz, Austria
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Accepted: 20 February 2015
Published online: 4 March 2015
A large degeneracy of mesons of a given spin has recently been discovered upon reduction of the quasi-zero modes of the Dirac operator in a dynamical lattice simulation. Here it is shown that a symmetry group is consistent with the observed degeneracy. It is argued that this symmetry group is a symmetry of the dynamical QCD string. Implications of this picture for a genesis of light hadron spectra are discussed.
© SIF, Springer-Verlag Berlin Heidelberg, 2015