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2004

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March

  



Exotic baryon resonances and the model of chiral solitons

V.B. Kopeliovich
Institute for Nuclear Research, Russian Academy of Sciences, Moscow, Russian Federation

A recently observed baryonic resonance with positive strangeness is discussed. The state is exotic because valence quarks alone cannot produce it and at least one quark-antiquark pair must be involved. The mass of the resonance is in agreement with chiral soliton models, which predict a number of other exotic states with different quantum numbers. Some of these states (e.g., those with strangeness S =-2 and charges Q = 0,-2) are probably already being observed experimentally.

DOI: 10.1070/PU2004v047n03ABEH001725
URL: http://ufn.ru/en/articles/2004/3/e/
Citation: Kopeliovich V B "Exotic baryon resonances and the model of chiral solitons" Phys. Usp. 47 309–318 (2004)
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This article in Russian: В.Б. Копелиович «Экзотические барионные резонансы и модель киральных солитонов» УФН 174 323–332 (2004)

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