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

Journal Article · 22 August 2019 · Physical Review D

DOI: https://doi.org/10.1103/physrevd.100.034020 · OSTI ID:1558689

Voloshin, M. B. ^[1]

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1. Univ. of Minnesota, Minneapolis, MN (United States); Inst. of Theoretical and Experimental Physics, Moscow (Russia)

It is pointed out that the previously suggested interpretation of the hidden-charm pentaquarks P_c(4312), P_c(4440), and P_c(4457) as molecular bound states of Σ_cD¯ and Σ_cD¯* 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 η_cp as well as of the decays to Λ_cD¯ and to Λ_cD¯*. Experimental studies of these relations would thus provide an indicative probe of the molecular structure.

• Research Organization: Univ. of Minnesota, Minneapolis, MN (United States)
• Sponsoring Organization: USDOE Office of Science (SC); USDOE
• Grant/Contract Number: SC0011842
• OSTI ID: 1558689
• Alternate ID(s): OSTI ID: 1611679
• Journal Information: Physical Review D, Vol. 100, Issue 3; ISSN 2470-0010
• Publisher: American Physical Society (APS)Copyright Statement
• Country of Publication: United States
• Language: English