Interpretation of the ωc →π+ ω (2012) →π+ (K ¯ Ξ) relative to ωc →π+ K ¯ Ξ from the ω (2012) molecular perspective

We present a mechanism for ωc→π+ω(2012) production through an external emission Cabibbo favored weak decay mode, where the ω(2012) is dynamically generated from the interaction of K̄Ξ∗(1530) and ηω, with K̄Ξ as the main decay channel. The ω(2012) decays later to K̄Ξ in this picture, with results com...

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Detalles Bibliográficos
Autores: Ikeno, N.;, Liang, W.H., Toledo, Genaro, Oset, Eulogi
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/303062
Acceso en línea:http://hdl.handle.net/10261/303062
Access Level:acceso abierto
Descripción
Sumario:We present a mechanism for ωc→π+ω(2012) production through an external emission Cabibbo favored weak decay mode, where the ω(2012) is dynamically generated from the interaction of K̄Ξ∗(1530) and ηω, with K̄Ξ as the main decay channel. The ω(2012) decays later to K̄Ξ in this picture, with results compatible with Belle data. As a consequence, one can evaluate the direct decay ωc0→π+K-Ξ0 and the decay ωc0→π+K̄Ξ∗, π+ηω with direct couplings of K̄Ξ∗ and ηω to K-Ξ0. We show that, within uncertainties and using data from a recent Belle measurement, all three channels account for about (12-20)% of the total ωc→π+K-Ξ0 decay rate. The consistency of the molecular picture with all the data is established by showing that ωc→Ξ0K̄∗0→Ξ0K-π+ and ωc→π+ω∗→π+K-Ξ0 account for about 85% of the total ωc→π+K-Ξ0.