CP asymmetry in B -> phi K-S in a general two-Higgs-doublet model with fourth-generation quarks
文献类型：期刊论文
| 作者 | Wu, YL , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.; Wu, YL ; Zhou, YF
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| 刊名 | EUROPEAN PHYSICAL JOURNAL C
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| 出版日期 | 2004 |
| 卷号 | 36期号:1页码:89-95 |
| 关键词 | Changing Neutral Currents Electric-dipole Moment 4th Generation Decays Violation Nonconservation Muon |
| ISSN号 | 1434-6044 |
| 英文摘要 | We discuss the time-dependent CP asymmetry of the decay B --> phiK(S) in an extension of the standard model with both a two Higgs doublet and additional fourth-generation quarks. We show that, although the standard model with a two Higgs doublet and the standard model with fourth-generation quarks alone are not likely to largely change the effective sin 2beta from the decay B --> phiK(S), the model with both an additional Higgs doublet and fourth-generation quarks can easily account for the possible large negative value of sin 2beta without conflicting with other experimental constraints. In this model, additional large CP violating effects may arise from the flavor-changing Yukawa interactions between neutral Higgs bosons and the heavy fourth-generation down type quark, which can modify the QCD penguin contributions. With the constraints obtained from b --> s (s) over bars processes such as B --> X(s)gamma and Deltam(Bs)(0), this model can lead to an effective sin 2beta as large as - 0.4 in the CP asymmetry of B --> phiK(S). |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000223019800009 |
| 公开日期 | 2012-08-30 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/14050]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Wu, YL , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wu, YL , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.,Wu, YL,Zhou, YF. CP asymmetry in B -> phi K-S in a general two-Higgs-doublet model with fourth-generation quarks[J]. EUROPEAN PHYSICAL JOURNAL C,2004,36(1):89-95. |
| APA | Wu, YL , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.,Wu, YL,&Zhou, YF.(2004).CP asymmetry in B -> phi K-S in a general two-Higgs-doublet model with fourth-generation quarks.EUROPEAN PHYSICAL JOURNAL C,36(1),89-95. |
| MLA | Wu, YL , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.,et al."CP asymmetry in B -> phi K-S in a general two-Higgs-doublet model with fourth-generation quarks".EUROPEAN PHYSICAL JOURNAL C 36.1(2004):89-95. |
入库方式： OAI收割
来源：理论物理研究所
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