Review of new physics effects in t-tbar production
  Both CDF and DO report a forward-backward asymmetry in t-tbar production that is above the standard model prediction. We review new physics models that can give a large forward backward asymmetry in t-tbar production at the Tevatron and the constraints these models face from searches for dijet resonances and contact interactions, from flavor physics and the t-tbar cross section. Expected signals at the LHC are also reviewed. 
Jernej F. Kamenik, Jing Shu, Jure Zupan
hep-ph hep-ex