A large data set collected at the LHCb experiment in proton-proton collisions during Runs 1 and 2 of the Large Hadron Collider has opened a unique possibility to study heavy beauty hadron states and to broaden knowledge of their spectroscopy and production. Recent results on searches for new excited $\mathrm{ b}$-hadron states, and studies of $\mathrm{ b}$-hadron production, are reviewed. In particular, the observation of new excited $\Omega^-_{ \mathrm{ b}}$ states, the observation of two new narrow $\Lambda_{ \mathrm{ b}}(6146)^0$ and $\Lambda_{ \mathrm{ b}}(6152)^0$ states, the observation of new $\Lambda_{ \mathrm{ b}}^{ **0}$ state consistent with the $\Lambda_{ \mathrm{ b}}(2\mathrm{ S})^0$ prediction, a precise measurement of the mass and width of $\Lambda_{ \mathrm{ b}}(5912)^0$ and $\Lambda_{ \mathrm{ b}}(5920)^0$ states, and a measurement of the $\mathrm{ B}_{ \mathrm{ c}}^-$ meson production fraction and $\mathrm{ B}_{ \mathrm{ c}}^--\mathrm{ B}_{ \mathrm{ c}}^+$ production asymmetry in 7 and 13 TeV of proton-proton collisions are presented.
Categories: hep-ex