A comprehensive analysis of hadronic b -> s transitions in a family non-universal Z ' model
文献类型：期刊论文
| 作者 | Chang, Q ; Li, XQ ; Yang, YD |
| 刊名 | JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
 |
| 出版日期 | 2014 |
| 卷号 | 41期号:10页码:105002 |
| ISSN号 | 0954-3899 |
| 关键词 | CHANGING NEUTRAL CURRENTS QCD FACTORIZATION LAMBDA-L(+)L(-) DECAY LEADING LOGARITHMS CP-VIOLATION CONSTRAINTS POLARIZATION DIFFERENCE PHI-PI(0) LAMBDA(B) |
| 通讯作者 | Chang, Q (reprint author), Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Henan, Peoples R China. |
| 英文摘要 | Motivated by the latest improved measurements of B-meson decays, we make a comprehensive analysis of the impact of a family non-universal Z' boson on B-s - (B) over bar (s) mixing and two-body hadronic B-meson decays, all being characterized by the quark-level b -> s transition. Explicitly 22 decay modes and the related 52 observables are considered, and some interesting correlations between them are also carefully examined. Firstly, the allowed oases of b - s - Z' coupling parameters |B-sb(L, R)| and phi(L, R)(s) are extracted from B-s - (B) over bar (s) mixing. Then, in the 'SM limit' (i.e., no new types of Z'-induced four-quark operators arise compared to the SM case), we study the Z' effects on B -> pi K, pi K* and rho K decays. It is found that a new weak phase phi(L)(s) similar to - 90 degrees is crucial for resolving the observed 'pi K CP puzzle' and the allowed cases of the other Z' coupling parameters are also strongly restricted. Moreover, the Z' effects on (B) over bar (s) -> KK, KK* and pi(0)phi decays, being induced by the same quark-level b -> sq (q) over bar (q = u, d) transitions, are also investigated. In particular, it is found that the decay (B) over bar (s) -> pi(0)phi, once measured, would play a key role in revealing the observed 'pi K CP puzzle' and probing possible new physics hints. Finally, to check the non-universality of Z' couplings to light-quark pairs, we have studied the B -> phi K decays in detail and found that the left-handed s - s - Z' coupling is different from the d - d - Z' one, which is due to the large A(CP)(dir)(B- -> phi K-) reported by the BaBar Collaboration. |
| 学科主题 | Physics |
| 资助信息 | National Natural Science Foundation of China (NSFC) [11105043, 11005032, 11225523, 11224504]; Research Fund for the Doctoral Program of Higher Education of China [20114104120002, 20104104120001]; Foundation for the Author of National Excellent Doctoral Dissertation of People's Republic of China [201317]; Program for Science and Technology Innovation Talents in Universities of Henan Province [14HASTIT036]; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry |
| 收录类别 | SCI |
| 原文出处 | http://dx.doi.org/10.1088/0954-3899/41/10/105002 |
| 语种 | 英语 |
| WOS记录号 | WOS:000342356500003 |
| 公开日期 | 2015-06-03 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15646]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Chang, Q,Li, XQ,Yang, YD. A comprehensive analysis of hadronic b -> s transitions in a family non-universal Z ' model[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2014,41(10):105002. |
| APA | Chang, Q,Li, XQ,&Yang, YD.(2014).A comprehensive analysis of hadronic b -> s transitions in a family non-universal Z ' model.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,41(10),105002. |
| MLA | Chang, Q,et al."A comprehensive analysis of hadronic b -> s transitions in a family non-universal Z ' model".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 41.10(2014):105002. |
入库方式： OAI收割
来源：理论物理研究所
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