Search for anomalous weak dipole moments of the tau lepton
文献类型：期刊论文
| 作者 | ALEPH Collaboration |
| 刊名 | EUROPEAN PHYSICAL JOURNAL C
 |
| 出版日期 | 2003 |
| 卷号 | 30期号:3页码:291-304 |
| 关键词 | CP VIOLATION SPIN CORRELATIONS LORENTZ STRUCTURE DECAY DETECTOR ALEPH |
| 通讯作者 | Heister, A (reprint author), Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany. |
| 英文摘要 | The anomalous weak dipole moments of the tau lepton are measured in a data sample collected by ALEPH from 1990 to 1995 corresponding to an integrated luminosity of 155 pb(-1). Tau leptons produced in the reaction e(+)e(-) --> tau(+)tau(-) at energies close to the Z mass are studied using their semileptonic decays to pi, rho, a(1) --> pi2pi(0) or a(1)--> 3pi. The real and imaginary components of both the anomalous weak magnetic dipole moment and the CP-violating anomalous weak electric dipole moment, Re mu(tau), Im mu(tau), Re d(tau) and Im d(tau), are measured simultaneously by means of a likelihood fit built from the full differential cross section. No evidence of new physics is found. The following bounds are obtained (95% CL): \Re mu(tau)\ < 1.14 x10(-3) \ Im mu(tau)\ < 2.65 x 10(-3), \ Re d(tau)\ < 0.91 x 10(-3), and \Im d(tau)\ < 2.01 x 10(-3). |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000185767500001 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212315]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 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 | ALEPH Collaboration. Search for anomalous weak dipole moments of the tau lepton[J]. EUROPEAN PHYSICAL JOURNAL C,2003,30(3):291-304. |
| APA | ALEPH Collaboration.(2003).Search for anomalous weak dipole moments of the tau lepton.EUROPEAN PHYSICAL JOURNAL C,30(3),291-304. |
| MLA | ALEPH Collaboration."Search for anomalous weak dipole moments of the tau lepton".EUROPEAN PHYSICAL JOURNAL C 30.3(2003):291-304. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。