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The Width of the $Θ^{+}$ Exotic Baryon in the Chiral Soliton Model

R. L. Jaffe
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Abstract

In 1997 Diakonov, Petrov, and Polyakov, calculated the width of the exotic baryon that they called $Θ^{+}$. The prediction, $Γ(Θ^{+})\lesssim$ 15 MeV, has received considerable attention, especially in light of the narrowness of the experimentally reported $Θ^{+}$ resonance. However, there is an arithmetic error in their work: when corrected, the width estimate quoted in that paper should have been $\lesssim$~30 MeV.

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R. L. Jaffe. 2004-03-09. The Width of the $Θ^{+}$ Exotic Baryon in the Chiral Soliton Model. https://doi.org/10.1140/epjc%2Fs2004-01815-4

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