Search for monotop in the leptonic channel in proton-proton collisions at √s = 13 Tev in the CMS detector

Dark Matter consists of around 27% of the total mass energy of the universe (or 5 times the mass of ordinary matter) and it does not interact directly with light so we haven’t observed it directly. Astrophysical observations like Gravitational Lensing (bending of light coming from distant galaxies by other galaxies clusters) and motion of galaxies at speeds so high for ordinary matter to sustain, have provided evidence for the presence of Dark Matter. In this talk we will look at the current status of the search for Dark Matter in events with large missing transverse energy and a leptonically decaying, boosted top quark (t -> b l v_{l}) using LHC Run II data collected by the CMS detector. A neutral bosonic state V is produced in association with the top quark decaying into two Dark Matter Candidates χ. The analysis is based on a flavor changing neutral interaction which is not possible at tree level in the SM.