Asymmetric Leptons for Asymmetric Tops
  We propose an efficient method to explore models which which produce like-sign tops at the LHC, using the total charge asymmetry of single lepton events instead of like-sign dileptons. As an example, the method is implemented on a Z' Model, which can explain the top pair forward-backward asymmetry at Tevatron. We show that a large region of the parameter space of this model can be reached using the existing data set at the LHC. 
Arvind Rajaraman, Ze'ev Surujon, Tim M.P. Tait
hep-ph