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arXiv · hep-ph/0404173

Exotic Baryons and Monopole Excitations in a Chiral Soliton Model

H. Weigel
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Abstract

We compute the spectra of exotic pentaquarks and monopole excitations of the low--lying ${1/2}^+$ and ${3/2}^+$ baryons in a chiral soliton model. Once the low--lying baryon properties are fit, the other states are predicted without any more adjustable parameters. This approach naturally leads to a scenario in which the mass spectrum of the next to lowest--lying $J^π={1/2}^+$ states is fairly well approximated by the ideal mixing pattern of the $\mathbf{8}\oplus\bar{\mathbf{10}}$ representation of flavor SU(3). We compare our results to predictions obtained in other pictures for pentaquarks and speculate about the spin--parity assignment for $Ξ(1690)$ and $Ξ(1950)$

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H. Weigel. 2004-04-21. Exotic Baryons and Monopole Excitations in a Chiral Soliton Model. https://doi.org/10.1140/epja%2Fi2004-10022-0

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