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

文献类型：期刊论文

作者Yang, JM
刊名PHYSICAL REVIEW D
出版日期2012
卷号85期号:1页码:14025
ISSN号1550-7998
关键词FORWARD-BACKWARD ASYMMETRY QUARK PAIR PRODUCTION HADRON COLLIDERS T(T)OVER-BAR ASYMMETRY 3RD-FAMILY QUARKS FERMILAB TEVATRON OPERATORS SYMMETRY BOSON
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
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]
收录类别SCI
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
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.

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来源：理论物理研究所

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