Possible molecules of triple-heavy pentaquarks within the extended local hidden gauge formalism

Abstract

In this study, we explore the interactions between mesons and baryons in the open heavy sectors to identify potential triple-heavy molecular pentaquarks. We derive the meson-baryon interaction potentials using the vector meson exchange mechanism within the extended local hidden gauge formalism. The scattering amplitudes are computed by solving the coupled-channel Bethe-Salpeter equation, revealing several bound systems. By analyzing the poles of these amplitudes in the complex plane, we determine the masses and widths of these bound states. Additionally, we evaluate the couplings and compositeness of different channels within each bound system to assess their molecular characteristics. Our predictions include four ${\Omega }_{ccc}$-like states, four ${\Omega }_{bbb}$-like states, fourteen ${\Omega }_{bcc}$-like states, and ten ${\Omega }_{bbc}$-like states, which could be targets for future experimental investigations.

arXiv comment14 pages, 3 figures, 8 tables, accepted by Phys. Rev. D

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