Search for single-top quark production in association with a photon in pp collisions with the ATLAS detector at the LHC

Associated production of a single top quark and a photon ($tq\gamma$) is one of the rare processes predicted in the Standard Model. However, this process has not been observed yet. Cross-section of this process is sensitive to the top quark charge and its electric and magnetic dipole moments. In this talk, I will outline the first-ever ATLAS search for the $tq\gamma$ production performed with 139 fb$^{-1}$ of $pp$ collision data collected by the ATLAS detector at the LHC at $\sqrt{s}$ = 13 TeV. Expected results from this search will be presented.