重味物理:通往新物理之门
文献类型：期刊论文
| 作者 | 吕才典 ; Li, Ying; Lü, Cai-Dian; Yang, Ya-Dong
|
| 刊名 | 科学通报
 |
| 出版日期 | 2018 |
| 卷号 | 63期号:24页码:2536-2545 |
| ISSN号 | 0023-074X |
| DOI | 10.1360/N972017-01353 |
| 其他题名 | Heavy flavour physics: A portal to new physics |
| 文献子类 | Article |
| 英文摘要 | Heavy flavour physics, as one of the most important parts in the standard model (SM), plays important roles in testing the SM and probing the effects of new physics beyond SM. Thanks to the two B factories, Beijing spectrometer (BES) and large hadron collider beauty (LHCb) experiment, in the past decades, there is great development in heavy flavour physics, in both experimental and theoretical sides. In heavy flavour physics, the first work is to test SM by measuring three angles (α, β and γ) and sides of Cabbibo-Kobayashi-Maskawa (CKM) triangle. Though the current results are in agreement with SM, the fit becomes less constrained in the presence of new physics, and O(20%) contributions of new physics are still allowed. The charge conjugation and parity (CP) asymmetries measured by two B factories helped us to study the matter-antimatter asymmetry in the Universe, and the discovered CP asymmetry in B → KsJ/ had led to the nobel prize for Kobayashi and Maskawa. In addition, the mass differences between the neutral meson and their own anti-meson can present us the information of the scale of the new physics, because possible new particles might contribute to D0, Bd0, and Bs0 meson mixing through box diagrams. The nonleptonic decays of B mesons afford us a new plate for studying the quantum chromodynamics (QCD) and factorization concept, as well as searching for the strong phases, which are important factors in CP asymmetries. Importantly, the rare decays induced by the flavour-changing neutral-current has attracted much interest, because the new physics can affect the observables remarkably through penguin diagrams. In addition, it is of interest to note that the recent anomalies, such as RK(*) , R(D(*)) and P'5, might be the hints of new physics beyond SM. In order to explain these anomalies, many models have been proposed, however, all of them should be further tested in the future on both experimental and theoretical sides. Moreover, heavy flavor physics also provides us an important plate for studying the new exotic states. Many new discovered exotic states in BES-III, B factories and LHCb, such as X(3872), Zc(3900) and Pc(4450, 4380), motivate us to further study the quark model and QCD. In 2018, Belle-II will take data, where the total luminosity is predicted to be 50ab-1 and 1010 B meson pair could be produced. The proposed International Linear Collider, Circular Electron-Positron Collider and Hyper-Z Factory, can also produce large number of B mesons, as well as Bs, Bc and Λb, when the collision energy is set to be O(mZ). These high precision or energy machines, together with the current LHCb experiment and its next generation, will lead heavy flavor physics to a new golden era. © 2018, Science Press. All right reserved. |
| 电子版国际标准刊号 | 2095-9419 |
| 语种 | 中文 |
| CSCD记录号 | CSCD:6332426 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286638]  |
| 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 | 吕才典,Li, Ying,Lü, Cai-Dian,等. 重味物理:通往新物理之门[J]. 科学通报,2018,63(24):2536-2545. |
| APA | 吕才典,Li, Ying,Lü, Cai-Dian,&Yang, Ya-Dong.(2018).重味物理:通往新物理之门.科学通报,63(24),2536-2545. |
| MLA | 吕才典,et al."重味物理:通往新物理之门".科学通报 63.24(2018):2536-2545. |
入库方式： OAI收割
来源：高能物理研究所
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