LAUSR

Recent results on b-flavour physics obtained by the CMS Collaboration will be presented. The flexible and powerful CMS trigger system allows the experiment to be sensitive to b-physics phenomena of different kinds, mostly in channels with muons in the final state. In this paper, some of these results will be reported, namely single quarkonia production, J/ψ, ψ(2S), Υ (1S, 2S, 3S), as well as the observation of double prompt Υ production. The lifetimes of different states, B → J/ψK, B → J/ψKS, B s → J/ψππ, B s → J/ψφ, Λb → J/ψΛ, and B c → J/ψπ will be described. Other measurements include Λb polarization, search for X(5568)→ B sπ, and the rare decay B s → μμ. Finally, the recent measurements of some angular parameters of the B → Kμμ decay will be reviewed.