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Supersymmetric effects in top quark decay into polarized W boson
Cao, JJ; Oakes, RJ; Wang, F; Yang, JM; Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453002, Henan, Peoples R China.
2003
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号68期号:5页码:-
摘要We investigate the one-loop supersymmetric QCD (SUSY-QCD) and electroweak (SUSY-EW) corrections to the top quark decay into a b quark and a longitudinal or transverse W boson. The corrections are presented in terms of the longitudinal ratio Gamma(t-->W(L)b)/Gamma(t-->Wb) and the transverse ratio Gamma(t-->W(-)b)/Gamma(t-->Wb). In most of the parameter space, both SUSY-QCD and SUSY-EW corrections to these ratios are found to be less than 1% in magnitude and they tend to have opposite signs. The corrections to the total width Gamma(t-->Wb) are also presented for comparison with the existing results in the literature. We find that our SUSY-EW corrections to the total width differ significantly from previous studies: the previous studies give a large correction of more than 10% in magnitude for a large part of the parameter space while our results reach only few percent at most.
部门归属Henan Normal Univ, Dept Phys, Xinxiang 453002, Henan, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
关键词Parity-violating Supersymmetry Weinberg-salam Model Radiative-corrections Fermilab-tevatron Hadron Colliders Standard Model Higgs Bosons Electroweak Corrections Helicity Parameters Loop Calculations
学科领域Physics
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收录类别SCI
WOS记录号WOS:000185720000040
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被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13231
专题理论物理所1978-2010年知识产出
通讯作者Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453002, Henan, Peoples R China.
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Cao, JJ,Oakes, RJ,Wang, F,et al. Supersymmetric effects in top quark decay into polarized W boson[J]. PHYSICAL REVIEW D,2003,68(5):-.
APA Cao, JJ,Oakes, RJ,Wang, F,Yang, JM,&Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453002, Henan, Peoples R China..(2003).Supersymmetric effects in top quark decay into polarized W boson.PHYSICAL REVIEW D,68(5),-.
MLA Cao, JJ,et al."Supersymmetric effects in top quark decay into polarized W boson".PHYSICAL REVIEW D 68.5(2003):-.
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