| 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
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| 2001
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| 发表期刊 | PHYSICAL REVIEW D
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| 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
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| 文章类型 | Review
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| 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. |
| 学科领域 | Astronomy & Astrophysics; Physics
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| 研究领域[WOS] | Astronomy & Astrophysics
; Physics
; Astronomy & Astrophysics
; Physics
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| DOI | 10.1103/PhysRevD.64.016009
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| URL | 查看原文
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| 语种 | 英语
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| 研究领域[WOS] | Astronomy & Astrophysics
; Physics
; Astronomy & Astrophysics
; Physics
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| WOS类目 | Astronomy & Astrophysics
; Physics, Particles & Fields
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| WOS记录号 | WOS:000169619300088
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.ihep.ac.cn/handle/311005/240475
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| 专题 | 理论物理室
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| 作者单位 | 中国科学院高能物理研究所
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推荐引用方式
GB/T 7714 |
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.
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| 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.
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| 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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