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arXiv · 1407.2798

SU(4) symmetry of the dynamical QCD string and genesis of hadron spectra

L. Ya. Glozman
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Abstract

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 a symmetry group that is responsible for this degeneracy is established, which is SU(4) \supset SU(2)_L \times SU(2)_R \times U(1)_A \times C_i. 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.

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L. Ya. Glozman. 2014-07-10. SU(4) symmetry of the dynamical QCD string and genesis of hadron spectra. https://doi.org/10.1140/epja/i2015-15027-x

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