Model independent analysis of the forward-backward asymmetry of top quark production at the Tevatron

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题名:	Model independent analysis of the forward-backward asymmetry of top quark production at the Tevatron
作者:	Jung,DW;Ko,P;Lee,JS;Nam,SH
贡献者:	物理學系
关键词:	HADRON COLLIDERS;PAIR PRODUCTION;CHIRAL COLOR;PARTICLES;DECAY
日期:	2010
上传时间:	2012-06-11 10:44:21 (UTC+8)
出版者:	國立中央大學
摘要:	Motivated by a possible anomaly in the forward-backward (FB) asymmetry of top quark (A(FB)) observed at the Tevatron, we perform a model independent analysis on q (q) over bar -> t (t) over bar using an effective Lagrangian with dim-6 four-quark operators. We derive necessary conditions on new physics structures and the couplings that are consistent with the t (t) over bar production cross section and AFB measured at the Tevatron, and discuss possible new physics scenarios that could generate such dim-6 operators. (C) 2010 Elsevier B.V. All rights reserved.
關聯:	PHYSICS LETTERS B
显示于类别:	[物理學系] 期刊論文

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