Asymmetric left-right model and the top pair forward-backward asymmetry

被引：84

作者：

Barger, Vernon ^{[1
]}

Keung, Wai-Yee ^{[2
]}

Yu, Chiu-Tien ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[2] Univ Illinois, Dept Phys, Chicago, IL 60607 USA

来源：

PHYSICAL REVIEW D | 2010年 / 81卷 / 11期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.81.113009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

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.

引用

页数：7

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