Some decay properties of hidden-charm pentaquarks as baryon-meson molecules

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It is pointed out that the previously suggested interpretation of the hidden-charm pentaquarks Pc(4312), Pc(4440), and Pc(4457) as molecular bound states of ςcD and ςcD∗ baryon-meson pairs gives rise to specific relations for their decays. In particular, the heavy-quark spin symmetry predicts ratios of rates of decays of each of the molecules to J/ψp and to ηcp as well as of the decays to ΛcD and to ΛcD∗. Experimental studies of these relations would thus provide an indicative probe of the molecular structure.

Original languageEnglish (US)
Article number034020
JournalPhysical Review D
Issue number3
StatePublished - Aug 22 2019

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© 2019 authors. Published by the American Physical Society.


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