科研之友
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摘要
The forward-backward asymmetry measurement in top-pair production at the Tevatron is about 2 sigma 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' approximate to 175 GeV and M-Z' approximate to 900 GeV. The model accounts for the asymmetry while remaining consistent with the top-pair total cross section and invariant mass distribution.
- 出版日期2010-6-25
