Compact pentaquark states
INFN Sezione di Genova,
via Dodecaneso 33, 16164 Genova,
Published online: 14 November 2018
We investigated the lightest pentaquark state observed by the LHCb collaboration as a compact five-quark ground-state, with spin S = 3/2, and we showed that this state belongs to a SUf(3) flavor octet by means of a group theory approach. Moreover, we predicted in a parameter-free way the pentaquark state mass spectra for all the octet-pentaquark states. Finally, by means of an effective Lagrangian approach, we computed the octet-pentaquark partial decay widths in J/ψΛ, J/ψΣ and J/ψΞ channels.
© The Authors, published by EDP Sciences, 2018
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