LHC Dijet Signals in New Physics Models for Top Forward–Backward Asymmetry

The dijet signature at the LHC is studied in new physics models for the top forward–backward asymmetry at the Tevatron. In the t-mediator models, flavor-changing interactions contribute to the dijet production cross section as well as the asymmetry at least at the one-loop level. It is found that the LHC dijet measurements at 36pb−1 have constrained the Z ′ coupling larger than 2.5–3. The sensitivity is expected to be improved significantly as the integrated luminosity increases in the LHC. ar X i