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

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

2004-01-23

arxiv.org/abs/hep-ph/0401187v2

Eur.Phys.J. C35 (2004) 221-222

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, no figures; title and abstract changed, minor typographical changes, reference to original literature modified

Scientific paper

10.1140/epjc/s2004-01815-4

In 1997 Diakonov, Petrov, and Polyakov, calculated the width of the exotic baryon that they called $\Theta^{+}$. The prediction, $\Gamma(\Theta^{+})\lesssim$ 15 MeV, has received considerable attention, especially in light of the narrowness of the experimentally reported $\Theta^{+}$ 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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