Constraints on the mass and mixing of the fourth generation quark from direct CP violation epsilon '/epsilon and rare K decays
文献类型：期刊论文
| 作者 | Huang, CS; Huo WJ(霍武军); Huo, WJ; Wu, YL |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2001 |
| 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 |
| 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. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000169619300088 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240475]  |
| 专题 | 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 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. |
| 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. |
入库方式： OAI收割
来源：高能物理研究所
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