"Super-radiance" and the width of exotic baryons

Abstract

It is suggested that the narrow width of the recently observed resonance ${\Theta }^{+}(1540)$ with strangeness $S=+1$ could be a result of the super-radiance mechanism of the redistribution of the widths of overlapping resonances due to their coupling through common decay channels.

arXiv commentThis is an update of the original version submitted on October 08, 2003; it includes consideration of an additional model and one new figure

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Cited by in corpus (7)

• Discrete and continuum spectra in the unified shell model approach
• Continuum Shell Model
• Super-Radiant Dynamics, Doorways, and Resonances in Nuclei and Other Open Mesoscopic Systems
• Expanding Nuclear Physics Horizons with the Gamma Factory
• Doorway states in nuclear reactions as a manifestation of the "super-radiant" mechanism
• Even Parity $\Theta$-Pentaquark and Stable Strange Nuclear Matter
• Mixing of Pentaquark and Molecular States