Feasibility study for the $B_C$ meson at CMS

In this talk the prospects to measure the mass and lifetime of the $B_c$ meson at CMS are discussed. Using the channel $B_c\rightarrow J/\psi\pi$ 120 $B_c$ events are expected to be selected in the first 1 fb$^{-1}$ of data. The expected accuracy of the mass measurement is $\rm 2.0(stat.)\pm 14.9(syst.)$ MeV/c$^2$, and the accuracy on the lifetime is $\rm 0.044(stat.)\pm 0.010(syst.)$ ps.