Probing anomalous tWb interactions with rare B decays Original Research Article

Precision studies of top quark properties are currently underway at the LHC and Tevatron colliders with the prospect of probing anomalous image interactions. In the mean time, recent experimental results for the image oscillation observables, the branching ratio image, as well as the forward–backward asymmetry in image, accompanied by the accurate theoretical predictions for the relevant observables obtained within the SM motivate a combined study of these observables in the presence of anomalous image vertices. We investigate contributions of such anomalous couplings to the image decay mode, and combining them with the modifications of the image, image observables, we determine indirect bounds on the real and imaginary parts of the anomalous image interactions. We find these to be mostly superior to present direct constraints coming from top decay and production measurements at the LHC and Tevatron. Finally, we predict the allowed effects in the branching ratios of the image and image, as well as the forward–backward asymmetry in image. We find that improved knowledge of these observables in the future could further constrain some of the anomalous tWb interactions.