  The production of a single top quark at LHC may occur through charged-current
electroweak interactions, i.e. via three different processes: the s-channel
exchange of a virtual W boson, the t-channel exchange of a virtual W boson and
the associated production of a top quark and a W boson (tW). In this paper a
review of the measurements of the single-top production made both at ATLAS and
CMS will be shown.
