Publication: Pentaquark molecular states with hidden bottom and double strangeness
Authors
Song, Jing ; Duan, Man-Yu ; Roca, Luis ; Oset, Eulogio
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Publisher
Springer
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DOI
https://doi.org/10.1140/epjc/s10052-024-13435-9
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info:eu-repo/semantics/article
Description
©The Author(s) 2024. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/. This document is the Published version of a Published Work that appeared in final form in The European Physical Journal C. To access the final edited and published work see https://doi.org/
Abstract
We investigate the meson-baryon interaction in coupled channels with the quantum numbers of the pentaquarks Pbss and Pbsss. The interaction is derived from an extension of the local hidden gauge approach to the heavy
quark sector, which has demonstrated accurate results compared to experiments involving b, b states, and pentaquarks Pc and Pcs. In our study, we identify several molecular states with small decay widths within the chosen set of coupled channels. The spin-parity (J P) of these states is as follows: J P = 1/2− for pseudoscalar-baryon ( 1/2+) coupled channels, J P = 3/2− for pseudoscalar-baryon ( 3/2+) coupled channels, J P = 1/2− and 3/2− for vector-baryon ( 1/2+) coupled channels, and J P = 1/2−, 3/2−, 5/2
− for vector-baryon ( 3/2+) coupled channels. We search for the poles of these states and evaluate their couplings to the different channels.
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Citation
Eur. Phys. J. C (2024) 84:1055
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