Molecular picture for the ω (2012) revisited

We conduct a study of the interaction of the K̄Ξ∗, ηω(s-wave), and K̄Ξ(d-wave) channels within a coupled channel unitary approach where the transition potential between the K̄Ξ∗ and ηω channels is obtained from chiral Lagrangians. The transition potential between K̄Ξ∗, ηω, and K̄Ξ is taken in terms...

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Detalles Bibliográficos
Autores: Ikeno, N., Toledo, Genaro, Oset, Eulogi
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/221767
Acceso en línea:http://hdl.handle.net/10261/221767
Access Level:acceso abierto
Descripción
Sumario:We conduct a study of the interaction of the K̄Ξ∗, ηω(s-wave), and K̄Ξ(d-wave) channels within a coupled channel unitary approach where the transition potential between the K̄Ξ∗ and ηω channels is obtained from chiral Lagrangians. The transition potential between K̄Ξ∗, ηω, and K̄Ξ is taken in terms of free parameters, which together with a cutoff to regularize the meson-baryon loops are fitted to the ω(2012) data. We find that all data including the recent Belle experiment on Γω∗→πK̄Ξ/Γω∗→K̄Ξ, are compatible with the molecular picture stemming from meson baryon interaction of these channels.