First Observation of Excited Ω_{b}^{-} States.
R. Aaij, C. Abellán Beteta, T. Ackernley, B. Adeva et autres
We report four narrow peaks in the Ξ_{b}^{0}K^{-} mass spectrum obtained using pp collisions at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb^{-1} recorded by the LHCb experiment. Referring to these states by …
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