First observation of excited ${\Omega }_b^{-}$ states

LHCb collaboration, R. Aaij, C. Abellán Beteta +901

We report four narrow peaks in the ${\Xi }_b^0{K}^{-}$ mass spectrum obtained using $pp$ collisions at center-of-mass energies of 7, 8 and 13 TeV, corresponding to a total integrated lumino…