Comment on the CMS search for charge-asymmetric production of W′ boson in t(t)over-bar + jet events

被引：3

作者：

Endo, Motoi ^{[1
]}

Iwamoto, Sho ^{[1
]}

机构：

[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

来源：

PHYSICS LETTERS B | 2013年 / 718卷 / 03期

关键词：

D O I：

10.1016/j.physletb.2012.12.011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A reanalysis is presented on the CMS result on a search for a W' boson that couples to the top and down quarks. The model is motivated by the Tevatron results on the forward-backward asymmetry of t (t) over bar pair production. In the evaluation of the theoretical cross section of pp -> t (t) over bar j, the interference effect between the SM and W' amplitudes is shown to be important, though it is ignored in the CMS analysis. The lower mass bound on the W' boson is relaxed from 840 GeV to 740 GeV at the 95% C.L. due to the interference effect at the leading order calculation of the cross section. The bound is also compared to the top forward-backward asymmetry. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1070 / 1072

页数：3

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