Single production of excited leptons at theLHeC

Single production of excited electrons (e*) at the future Large Hadron-Electron Collider (LHeC) through both gauge (GM) and contact (CI) interactions is studied. Subsequent decays of excited electrons to ordinary electron and photon via gauge and contact interactions are considered. Expected sensitivity to e* production in electron-proton collisions at the LHeC at high centre of mass energies of TeV scale will be addressed and compared to the recent results obtained using the data accumulated from the three large colliders LEP, HERA and Tevatron, as well as to the expected sensitivities of the LHC and ILC.