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 Nc of colors. Although Nc = 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.
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Prepared from an English manuscript submitted by the authors; for the Russian version, see Teoreticheskaya i Matematicheskaya Fizika, Vol. 170, No. 1, pp. 140–160, January, 2012.
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Diakonov, D.I., Petrov, V.Y. & Vladimirov, A.A. Baryon resonances in the relativistic mean field approach. Theor Math Phys 170, 114–130 (2012). https://doi.org/10.1007/s11232-012-0013-x
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DOI: https://doi.org/10.1007/s11232-012-0013-x