Search for a doubly charged Higgs decaying to muons or electrons: Prospects for CMS Run 3

A variety of exotic models predict a doubly charged Higgs-like particle that can be pair-produced in hadronic interactions via a Drell-Yan-like mechanism. The H++ and H-- can each decay to a pair of like-sign leptons (muons or electrons in this study) with TeV-scale mass, providing a distinctive event signature. We present preliminary studies for the sensitivity of the CMS experiment during Run 3 and compare to the sensitivity in Run II.