Axigluon as Possible Explanation for $p\bar{p}\to t\bar{t}$ Forward-Backward Asymmetry

Abstract

A flavor-nonuniversal chiral color model is introduced. It is used for comparison to the recent data on $\bar{p}p\to \bar{t}t$. We concluded that the data are consistent with interpretation as an axigluon exchange within 1$\sigma$ and a unique rise and fall behavior is predicated with regard to the asymmetry $A_{FB}^t$ as a function of $t\bar{t}$ invariant mass, which can distinguish our model from others before one discovers the axigluon resonance. Further aspects of the model are discussed.

Comments: reference updated