Production of a Single and a Pair of Heavy-Exotic-Leptons Through the pp   Collisions
  We investigate the production and signatures of a single, pair of heavy-exotic leptons via the electron-positron induced process and a pair of heavy exotic leptons via the Drell-Yan process at the CERN Large Hadron Collider (LHC). We show that the cross-section for the case of the production of heavy pair exotic leptons are competitive with the ones for the single production of exotic leptons. We also exhibit some kinematical distributions. 
J. E. Cieza Montalvo and P. P. de Queiroz Filho