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- Title
Description of the Ξc and Ξb states as molecular states.
- Authors
Yu, Q. X.; Pavao, R.; Debastiani, V. R.; Oset, E.
- Abstract
In this work we study several Ξc and Ξb states dynamically generated from the meson-baryon interaction in coupled channels, using an extension of the local hidden gauge approach in the Bethe-Salpeter equation. These molecular states appear as poles of the scattering amplitudes, and several of them can be identified with the experimentally observed Ξc states, including the Ξc(2790), Ξc(2930), Ξc(2970), Ξc(3055) and Ξc(3080). Also, for the recently reported Ξb(6227) state, we find two poles with masses and widths remarkably close to the experimental data, for both the JP=1/2- and JP=3/2- sectors.
- Subjects
BARYONS; MESONS
- Publication
European Physical Journal C -- Particles & Fields, 2019, Vol 79, Issue 2, p1
- ISSN
1434-6044
- Publication type
Article
- DOI
10.1140/epjc/s10052-019-6665-z