Narrow pentaquarks as diquark–diquark–antiquark systems Article Swipe

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Pentaquark Diquark Physics Particle physics Charm (quantum number) Hadron Multiplet Quark Nuclear physics Exotic hadron Baryon Bar (unit) Hadron spectroscopy Spectral line Quantum mechanics Meteorology

V.V. Anisovich , M. A. Matveev , J. Nyíri , A. N. Semenova ·

YOU? · · 2017 · Open Access · · DOI: https://doi.org/10.1142/s0217732317501541 · OA: W2621587986

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 [Formula: see text] and those with open charm [Formula: see text] which were discovered recently in LHCb data ([Formula: see text] and [Formula: see text] spectra correspondingly). Considering the observed states as members of the lowest ([Formula: see text]-wave) multiplet, we discuss the mass splitting of states and the dumping of their widths.