Lepton flavor violating decays of B and K mesons in models with extended gauge group
文献类型：期刊论文
| 作者 | Fayyazuddin; Lu, CD; Lv CD(吕才典) ; Aslam, MJ
|
| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS A
 |
| 出版日期 | 2018 |
| 卷号 | 33期号:14-15页码:1850087 |
| 关键词 | B decays beyond Standard Model gauge groups |
| ISSN号 | 0217-751X |
| DOI | 10.1142/S0217751X18500872 |
| 文献子类 | Article |
| 英文摘要 | Lepton flavor violating (LFV) decays are forbidden in the Standard Model (SM) and to explore them one has to go beyond it. The flavor changing neutral current induced lepton flavor conserving and LFV decays of K and B mesons is discussed in the gauge group G = SU(2)(L)x U(1)(Y1) X SU(2)(X). The lepto-quark X-mu(+/- 2/3) corresponding to gauge group SU(2)(X) allows the quark lepton transitions and hence giving a framework to construct the effective Lagrangian for the LFV decays. The mass of lepto-quark m(X) provides a scale at which the gauge group G is broken to the SM gauge group. Using the most stringent experimental limit B(K-L(0) -> mu(-/+)e(+/-)) < 1.7 x 10(-12), the upper bound on the effective coupling constant (GX/GF)(2) < 1.1X 10(-1)0 is obtained for certain pairing of lepton and quark generations in the representation (2, 2) of the group G. Later, the effective Lagrangian for the LFV meson decays for the gauge group G = [SU(2)(L) x SU(2)(R) x U(1)(Y1)] x SU(2)(X) is constructed. Using B(K- -> pi(-)upsilon(upsilon) over bar)) = (1.7 +/- 1.1) x 10(-1)0, the bound on the ratio of effective couplings is obtained to be (GGxF)2 < 10-10. A number of decay modes are discussed which provide a promising area to test this model in the current and future particle physics experiments. |
| 电子版国际标准刊号 | 1793-656X |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000433257500008 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285950]  |
| 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 | Fayyazuddin,Lu, CD,Lv CD,et al. Lepton flavor violating decays of B and K mesons in models with extended gauge group[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2018,33(14-15):1850087. |
| APA | Fayyazuddin,Lu, CD,吕才典,&Aslam, MJ.(2018).Lepton flavor violating decays of B and K mesons in models with extended gauge group.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,33(14-15),1850087. |
| MLA | Fayyazuddin,et al."Lepton flavor violating decays of B and K mesons in models with extended gauge group".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 33.14-15(2018):1850087. |
入库方式： OAI收割
来源：高能物理研究所
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