Angular analysis of the decay B$_0$ → K * µµ with the CMS detector

The Flavour Changing Neutral Current decay, B$_0$ → K*$_0$ µ + µ − is very sensitive to New Physics contributions through its observables like the muon forward-backward asymmetry, the fraction of K * longitudinal polarization, and the differential branching fraction. These parameters, as reported from previous experiments, remain so far consistent with SM prediction. We will report the recent results from CMS on these parameters using the 20 fb$^−$$^1$ data collected during 2012.