This article is cited in 2 papers

Baryon resonances in the relativistic mean field approach

D. I. D'yakonov^ab, V. Yu. Petrov^ab, A. A. Vladimirov<sup>b

a</sup> Petersburg Nuclear Physics Institute, Gatchina, St. Petersburg, Russia
^b Institute of Theoretical Physics II, Ruhr-Universität Bochum, Bochum, Germany

Abstract: We suggest a new approach according to which baryon resonances can be viewed as collective excitations about “intrinsic” one-quark excitations in a mean field of definite symmetry. This standpoint is justified in the limit of a large number $N_{\mathrm c}$ of colors. Although $N_{\mathrm c}=3$ in the real world, we obtain a good agreement with the observed resonance spectrum up to $2$ GeV. A possible consequence of the scheme is the existence of new exotic charmed (and bottom) baryons that may be stable against strong decays.

Keywords: quantum chromodynamics, baryon, resonance, mean field.

Received: 19.01.2012

DOI: 10.4213/tmf6753

 English version: Theoretical and Mathematical Physics, 2012, 170:1, 114–130

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