RESONANT PRODUCTION OF COLOR OCTET ELECTRON AT THE LHeC M. SAHIN ∗ TOBB University of Economics and Technology, Physics Division, Ankara, Turkey S. SULTANSOY † TOBB University of Economics and Technology, Physics Division, Ankara, Turkey and Institute of Physics, National Academy of Sciences, Baku, Azerbaijan S. TURKOZ ‡ Ankara University, Department of Physics, Ankara, Turkey In composite models with colored preons leptogluons ( l 8 ) has a same status with leptoquarks, excited leptons and quarks etc. We analyze resonant production of color octet electron ( e 8 ) at QCD Explorer stage of the Large Hadron electron Collider (LHeC). It is shown that the e 8 discovery at the LHeC simultaneously will determine the compositeness scale. 1 $^{∗}$Electronic address: m.sahin@etu.edu.tr $^{†}$Electronic address: ssultansoy@etu.edu.tr $^{‡}$Electronic address: turkoz@science.ankara.edu.tr arXiv:1001.4505v2 [hep-ph] 27 Jan 2010 Abstract