Search for new massive resonances decaying to two charged leptons at CMS

A search for new massive bosons decaying to two charged leptons ($Z \rightarrow l^+l^-$) with the dataset collected by the CMS experiment in 2012, corresponding to about $20\mbox{ fb}^{-1}$ of $pp$ collisions at $8\mbox{ TeV}$, is presented. In absence of a significant deviation from the standard model predictions, upper limits on the new resonances production cross section times branching fraction are estimated. Furthermore, projections of the discovery potential for new heavy bosons decaying to two charged leptons for future runs of the LHC are shown.