Searches for FCNC with top quarks

International audienceProcesses with Flavour Changing Neutral Currents (FCNC) are highly suppressed in the Standard Model (SM). Any anomalous enhancements of observed rates of these processes could point to the existence of new physics. At the LHC, top quark provides an unique environment to look for these anomalies in events with the production of single t op quark and top quark pairs. An overview of the latest results from the ATLAS and the CMS experiments is given. No significant deviation from SM expectation is observed