Decay widths of the excited Ω b baryons

The LHCb Collaboration recently observed five narrow Ωc0 resonances and measured their masses and widths through the decays Ωc0→Ξc+K−. Motivated by this discovery, and also by the fact that the ground-state bottom baryon Ωb− with spin 1/2 was already found experimentally, we perform a theoretical investigation of the spin-1/2 and spin-3/2, Ωb, baryons by calculating the decay width of their first orbitally and radially excited states to Ξb0K−. For this purpose, we employ the QCD sum rule method on the light cone by including in the analysis the K-meson distribution amplitudes up to twist 4. Obtained analytical expressions are utilized to extract parameters of these decay processes, which may be useful for forthcoming experimental studies of bottom baryons.