CDF recently reported an anomaly in the $m_{jj}$ distribution of dijet events produced in association with a $W$ boson. A single $u-t-V$ flavor-changing coupling can contribute to the $m_{jj}$ anomaly while being consistent with other resonance searches. Furthermore, it gives a potential explanation of the observed forward-backward asymmetry in top quark production.

• Received 17 June 2011

DOI:https://doi.org/10.1103/PhysRevD.84.055018