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Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon '/epsilon and rare K decays
Huang, CS; Huo WJ(霍武军); Huo, WJ; Wu, YL
2001
发表期刊PHYSICAL REVIEW D
卷号64期号:1页码:16009
通讯作者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
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.
文章类型Review
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.64.016009
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语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000169619300088
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被引频次:19[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/311005/240475
专题理论物理室
作者单位中国科学院高能物理研究所
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Huang, CS,Huo WJ,Huo, WJ,et al. Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon '/epsilon and rare K decays[J]. PHYSICAL REVIEW D,2001,64(1):16009.
APA Huang, CS,霍武军,Huo, WJ,&Wu, YL.(2001).Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon '/epsilon and rare K decays.PHYSICAL REVIEW D,64(1),16009.
MLA Huang, CS,et al."Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon '/epsilon and rare K decays".PHYSICAL REVIEW D 64.1(2001):16009.
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