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题名: Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon
作者: Huang, CS ;  Huo, WJ ;  Wu, YL
刊名: PHYSICAL REVIEW D
出版日期: 2001
卷号: 64, 期号:1, 页码:-
关键词: HADRONIC MATRIX-ELEMENTS ;  HIGGS-BOSON EXCHANGE ;  LARGE-N LIMIT ;  = 1/2 RULE ;  STANDARD MODEL ;  4TH GENERATION ;  B0 DECAYS ;  NEUTRINO OSCILLATIONS ;  2-HIGGS-DOUBLET MODEL ;  DELTA-I=1/2 RULE
学科分类: Physics
通讯作者: Huang, CS , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; CCAST, World Lab, Beijing 100080, Peoples R China; Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China
英文摘要: We investigate the epsilon'/epsilon for K --> pi pi in a sequential fourth generation model. By giving the basic formulas for epsilon'/epsilon in this model, we analyze the numerical results which are dependent on m(t), and the imaginary part of the fourth CKM factor, IMV*V-t's(t'd) (or V*V-t's(t'd) and the fourth generation CKM matrix phase theta). We find that, unlike the SM, when taking the central values of all parameters for epsilon'/epsilon, the values of epsilon'/epsilon can easily fit to the current experimental data for all values of hadronic matrix elements estimated from various approaches. Also, we show that the experimental values of epsilon'/epsilon and rare K decays can provide a strong constraint on both mass and mixing of the fourth generation quark. When taking the values of hadronic matrix elements from the lattice or 1/N expansion calculations, a large region of the up-type quark mass m(t), is excluded.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12715
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:
Huang, CS,Huo, WJ,Wu, YL. Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon[J]. PHYSICAL REVIEW D,2001,64(1):-.
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