Degeneracy of the quarks, shell structure in the chiral soliton

摘要

We obtain multi-winding number configurations with discrete symmetries in the chiral quark soliton model using the rational map ansatz. The solutions exhibit degenerate bound spectra of the quark orbits depending on the background of pion field configurations. It is shown that resultant baryon densities inherit the same discrete symmetries as the chiral fields. Evaluating the radial component of the baryon density, shell-like structure of the valence quark spectra is also observed. (C) 2004 Elsevier B.V. All rights reserved.