RPC background studies at CMS experiment

During Run2 the high instantaneous luminosity, up to $2.2\cdot10^{34} \ cm^{-2} \ s^{-1}$, lead to a substantial hit rate in the Compact Muon Solenoid experiment's muon chambers due to multiple background sources to physics processes sought for at LHC. In this article we will describe the analysis method devised to measure and identify the contributions to such background in the Resistive Plate Chambers.%, and deployed on data collected in 2018 pp collisions at 13 TeV. Thorough understanding of the background rates provides the base for the upgrade of the muon detectors for the High-Luminosity LHC.