Explaining the t(t)over-bar forward-backward asymmetry without dijet or flavor anomalies

We consider new physics explanations of the anomaly in the t (t) over bar forward-backward asymmetry measured at the Tevatron, in the context of flavor conserving models. The recently measured LHC dijet distributions strongly constrain many otherwise viable models. A new scalar particle in the (3) over bar representation of flavor and color can fit the t (t) over bar asymmetry and cross section data at the Tevatron and avoid both low- and high-energy bounds from flavor physics and the LHC. An s-channel resonance in uc -> uc scattering at the LHC is predicted to be not far from the current sensitivity. This model also predicts rich top quark physics for the early LHC from decays of the new scalar particles. Single production gives t (t) over barj signatures with high p(T)(jet), pair production leads to t (t) over bar jj and 4 jet final states.