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题名: Supersymmetric effects in top quark decay into polarized W boson
作者: Cao, JJ ;  Oakes, RJ ;  Wang, F ;  Yang, JM
刊名: PHYSICAL REVIEW D
出版日期: 2003
卷号: 68, 期号:5, 页码:-
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
学科分类: Physics
通讯作者: Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453002, Henan, Peoples R China.
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
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000185720000040
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13231
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
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):-.
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