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Narrow pentaquarks as diquark-diquark-antiquark systems

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arxiv 1706.01336 v2 pith:72DXXZQA submitted 2017-06-05 hep-ph

V.V. Anisovich , M.A. Matveev , J. Nyiri , A.N. Semenova This is my paper · ORCID
classification hep-ph
keywords statescharmpentaquarksdatadiquark-diquark-antiquarkdiscusslhcbopen
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abstract

The diquark-diquark-antiquark model describes pentaquark states both in terms of quarks and hadrons. The latest LHCb data for pentaquarks with open charm emphasize the importance of hadron components in the structure of pentaquarks. We discuss pentaquark states with hidden charm $P(\bar c cuud)$ and those with open charm $P(\bar uussc)$ which were discovered recently in LHCb data ($J/\Psi p$ and $\Xi_c^+ K^-$ spectra correspondingly). Considering the observed states as members of the lowest (s-wave) multiplet we discuss the mass splitting of states and the dumping of their widths.

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  1. Magnetic Moments of Hidden-Charm Pentaquarks in the Diquark-Diquark-Antiquark Scheme

    hep-ph 2024-11 conditional novelty 4.0 of 10

    Using constituent quark masses and S-wave spin-flavor wave functions, the paper predicts magnetic moments for Pc(4457) and related hidden-charm pentaquarks in the diquark-diquark-antiquark scheme.

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