Top-Quark Asymmetry -- A New Physics Overview

Abstract

Several recent measurements at the Tevatron experiments point towards an anomalously large forward-backward asymmetry in top-antitop production. This article summarizes the main classes of physics beyond the standard model that can give rise to a large asymmetry. Complementary measurements at the Large Hadron Collider will allow to distinguish between different models and thereby contribute to clarifying the presently puzzling picture.

Comments: 7 pages, 2 figures; prepared for the proceedings of the International Europhysics Conference on High Energy Physics - HEP 2011, July 21-27 2011, Grenoble, France