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arXiv · 1002.1048

Asymmetric Left-Right Model and the Top Pair Forward-Backward Asymmetry

Vernon Barger·Wai-Yee Keung·Chiu-Tien Yu
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Abstract

The forward-backward asymmetry measurement in top-pair production at the Tevatron is about $2σ$ from the Standard Model prediction. We propose an asymmetric left-right model, which includes a $W'$ boson with a right-handed coupling of down to top quark, and a $Z'$ boson with diagonal couplings to the up, top, and down quarks with $M_{W'}\approx175$ GeV and $M_{Z'}\approx 900$ GeV. The model accounts for the asymmetry while remaining consistent with the top-pair total cross-section and invariant mass distribution.

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Vernon Barger, Wai-Yee Keung, Chiu-Tien Yu. 2010-06-30. Asymmetric Left-Right Model and the Top Pair Forward-Backward Asymmetry. https://doi.org/10.1103/physrevd.81.113009

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