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Top-quark spin correlation at linear colliders with anomalous couplings
Lin, ZH; Han, T; 黄涛(理); Wang JX(王建雄); Huang, T; Wang, JX; Zhang, X
2002
发表期刊PHYSICAL REVIEW D
卷号65期号:1页码:14008
通讯作者Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China ; Univ Wisconsin, Dept Phys, Madison, WI 53706 USA
文章类型Article
摘要We investigate the feasibility of probing anomalous top-quark couplings of Wtb, Zt (t) over bar, and gammat (t) over bar in terms of an effective Lagrangian with dimension-six operators at future e(+)e(-) linear colliders with a c.m. energy roots similar to500-800 GeV. We first examine the constraints on these anomalous couplings from the Z-->b (b) over bar data at CERN LEP I and from unitarity considerations. We then consider in detail the effects of anomalous couplings on t (t) over bar spin correlations in the top-pair production and decay with three spin bases: the helicity, beamline, and off-diagonal bases. Our results show that the polarized beams are more suitable for exploring the effects of different new operators. For polarized beams, the helicity basis yields the best sensitivity.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.65.014008
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000173125000023
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240420
专题理论物理室
实验物理中心
作者单位中国科学院高能物理研究所
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Lin, ZH,Han, T,Huang T,et al. Top-quark spin correlation at linear colliders with anomalous couplings[J]. PHYSICAL REVIEW D,2002,65(1):14008.
APA Lin, ZH.,Han, T.,黄涛.,王建雄.,Huang, T.,...&Zhang, X.(2002).Top-quark spin correlation at linear colliders with anomalous couplings.PHYSICAL REVIEW D,65(1),14008.
MLA Lin, ZH,et al."Top-quark spin correlation at linear colliders with anomalous couplings".PHYSICAL REVIEW D 65.1(2002):14008.
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