Topics in Heavy Quark Physics at CMS

The study of beauty and top-quark production will be an important research area at the LHC. Here we review the prospects and plans for some early measurements at CMS: the measurement of the b-quark production cross section using semileptonic decays into muons and inclusive decays into charmonium; the measurement of the top cross section into semileptonic and dileptonic final states; the study of the kinematical properties of top events and the use of these events as a calibration tool. We will also present the prospects for a search for $B_s^0\rightarrow\mu^+\mu^-$, a rare decay whose branching ratio can be enhanced in several extensions of the Standard Model.