Search for Dark Matter produced in association with Monotop in the fully leptonic channel in proton-proton collisions at 13 TeV with the Compact Muon Soleniod experiment

A search for dark matter has been performed using the monotop model, with the dark matter signature in the form of large missing energy, presence of a b-tagged jet and an isolated lepton (electron and muon). The data analyzed in this analysis was collected from 2016-2018 amounting to an integrated luminosity of 137 fb$^(−1)$ from the proton-proton collisions at a center-of-mass energy $\sqrt{s}$ of 13 TeV and upper exclusion limits on the mass of the dark matter mediator and the dark matter particle have been set at 95% confidence level.