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题名: New physics effects on top quark spin correlation and polarization at the LHC: A comparative study in different models
作者: Cao, JJ ;  Wu, L ;  Yang, JM
刊名: PHYSICAL REVIEW D
出版日期: 2011
卷号: 83, 期号:3, 页码:34024
关键词: PARITY-VIOLATING SUPERSYMMETRY ;  LEFT-RIGHT SYMMETRY ;  DOUBLE-BETA DECAY ;  R-PARITY ;  FERMILAB-TEVATRON ;  HADRON COLLIDERS ;  PAIR PRODUCTION ;  STANDARD MODEL ;  CHIRAL COLOR ;  T(T)OVER-BAR PRODUCTION
学科分类: Physics
通讯作者: Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
部门归属: [Cao, Junjie] Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China; [Wu, Lei; Yang, Jin Min] Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
英文摘要: Extensions of the standard model often predict new chiral interactions for top quarks, which will contribute to top quark spin correlation and polarization in t (t) over bar production at the LHC. In this work, under the constraints from the current Tevatron measurements, a comparative study of the spin correlation and polarization is performed in three new physics models: the minimal supersymmetric model without R-parity, the third-generation enhanced left-right model, and the axigluon model. We find that the polarization asymmetry may be enhanced to the accessible level in all these models, while the correction to the spin correlation may be detectable in the axigluon model and the minimal supersymmetric model without R-parity with lambda '' couplings.
资助者: HASTIT [2009HASTIT004]; National Natural Science Foundation of China (NNSFC) [10821504, 10725526, 10635030, 10775039, 11075045]; Chinese Academy of Sciences [KJCX2.YW.W10]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000287586300002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14406
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Cao, JJ,Wu, L,Yang, JM. New physics effects on top quark spin correlation and polarization at the LHC: A comparative study in different models[J]. PHYSICAL REVIEW D,2011,83(3):34024.
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