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arXiv · 1711.10623

Molecular $Ω_b$ states

Wei-Hong Liang·J. M. Dias·V. R. Debastiani·E. Oset
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Abstract

Motivated by the recent finding of five $Ω_c$ states by the LHCb collaboration, and the successful reproduction of three of them in a recent approach searching for molecular states of meson-baryon with the quantum numbers of $Ω_c$, we extend these ideas and make predictions for the interaction of meson-baryon in the beauty sector, searching for poles in the scattering matrix that correspond to physical states. We find several $Ω_b$ states: two states with masses 6405~MeV and 6465~MeV for $J^P= \frac{1}{2}^-$; two more states with masses 6427~MeV and 6665~MeV for $\frac{3}{2}^-$; and three states between 6500 and 6820~MeV, degenerate with $J^P=\frac{1}{2}^-,\,\frac{3}{2}^-$, stemming from the interaction of vector-baryon in the beauty sector.

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Wei-Hong Liang, J. M. Dias, V. R. Debastiani, E. Oset. 2018-03-22. Molecular $Ω_b$ states. https://doi.org/10.1016/j.nuclphysb.2018.03.008

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