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Paper   IPM / Physic / 14920
School of Physics
  Title:   Decay widths of the excited Ωb baryons
1.  S.S. Agaev
2.  K. Azizi
3.  H. Sundu
  Status:   Published
  Journal: Phys. Rev. D
  Vol.:  96
  Year:  2017
  Pages:   094011
  Supported by:  IPM
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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