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[Formula: see text] excited states within a [Formula: see text]  HQSS model

We have reviewed the renormalization procedure used in the unitarized coupled-channel model of Romanets et al. (Phys Rev D 85:114032, 2012), and its impact in the [Formula: see text] , [Formula: see text] , and [Formula: see text] sector, where five [Formula: see text] states have been recently obse...

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Detalles Bibliográficos
Autores principales: Nieves, J., Pavao, R., Tolos, L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5842314/
https://www.ncbi.nlm.nih.gov/pubmed/29563852
http://dx.doi.org/10.1140/epjc/s10052-018-5597-3
Descripción
Sumario:We have reviewed the renormalization procedure used in the unitarized coupled-channel model of Romanets et al. (Phys Rev D 85:114032, 2012), and its impact in the [Formula: see text] , [Formula: see text] , and [Formula: see text] sector, where five [Formula: see text] states have been recently observed by the LHCb Collaboration. The meson-baryon interactions used in the model are consistent with both chiral and heavy-quark spin symmetries, and lead to a successful description of the observed lowest-lying odd parity resonances [Formula: see text] and [Formula: see text] , and [Formula: see text] and [Formula: see text] resonances. We show that some (probably at least three) of the states observed by LHCb will also have odd parity and [Formula: see text] or [Formula: see text] , belonging two of them to the same [Formula: see text]  HQSS multiplets as the latter charmed and beauty [Formula: see text] baryons.