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| Paper IPM / P / 14920 |
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| Abstract: | |||||||
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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 theoretical investigation of
the spin-1/2 and spin-3/2, Ωb, baryons by calculating decay width of
their first orbitally and radially excited states to Ξb0 K−. For
this purpose, we employ QCD sum rule method on the light-cone by including
into 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.
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