Measurement of the ${\Xi }_b^{-}$ and ${\Omega }_b^{-}$ baryon lifetimes

LHCb collaboration, R. Aaij, B. Adeva +691

Using a data sample of pp collisions corresponding to an integrated luminosity of $3\mathrm{f}{\mathrm{b}}^{-1}$, the ${\Xi }_b^{-}$ and ${\Omega }_b^{-}$ baryons are reconstructed in the $Ξ_b^- \rightarrow J/ψΞ…