Testing new physics models by top charge asymmetry and polarization at the LHC

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	Testing new physics models by top charge asymmetry and polarization at the LHC
	Yang, JM
刊名	PHYSICAL REVIEW D
	2012
卷号	85 期号:1 页码:14025
关键词	FORWARD-BACKWARD ASYMMETRY QUARK PAIR PRODUCTION HADRON COLLIDERS T(T)OVER-BAR ASYMMETRY 3RD-FAMILY QUARKS FERMILAB TEVATRON OPERATORS SYMMETRY BOSON
ISSN号	1550-7998
通讯作者	Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
英文摘要	As a top quark factory, the LHC can test new physics models used to explain the top quark forwardbackward asymmetry A(FB)(t) measured at the Tevatron. In this work we perform a comparative study for two such models: the W' model and the color triplet diquark (phi) model. Requiring these models to explain A(FB)(t) and also satisfy the top pair production rate measured at the Tevatron, we examine their contributions to the LHC observables such as the polarizations and charge asymmetries in top quark productions and the charge asymmetry in W' (or phi) pair production. We find that these observables can be enhanced to their observable levels and current LHC measurement on the top charge asymmetry has already tightly constrained the W' model. We also find that each observable shows different characteristics in different models, which can be utilized to discriminate the models.
学科主题	Physics
收录类别	SCI
资助信息	HASTIT [2009HASTIT004]; National Natural Science Foundation of China (NNSFC) [10821504, 10725526, 10775039, 11075045]; Chinese Academy of Sciences [KJCX2.YW.W10]; [14046201]
原文出处	http://dx.doi.org/10.1103/PhysRevD.85.014025
语种	英语
WOS记录号	WOS:000299926800002
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15175]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Yang, JM. Testing new physics models by top charge asymmetry and polarization at the LHC[J]. PHYSICAL REVIEW D,2012,85(1):14025.
APA	Yang, JM.(2012).Testing new physics models by top charge asymmetry and polarization at the LHC.PHYSICAL REVIEW D,85(1),14025.
MLA	Yang, JM."Testing new physics models by top charge asymmetry and polarization at the LHC".PHYSICAL REVIEW D 85.1(2012):14025.