Inclusive production of the eta and omega mesons in Z decays, and the muonic branching ratio of the omega
文献类型：期刊论文
| 作者 | ALEPH Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2002 |
| 卷号 | 528期号:1--2页码:19-33 |
| 关键词 | HADRONIC Z DECAYS ALEPH DETECTOR 3-JET EVENTS QUARK-MODEL LEP PHYSICS |
| 通讯作者 | Heister, A (reprint author), Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany. |
| 英文摘要 | The inclusive production of the eta and omega(782) mesons is measured in the pi(+)pi(-)pi(0) decay mode in hadronic Z decays and compared to model predictions. The analysis is based on 4 million hadronic Z decays recorded by the ALEPH detector between 1991 and 1995. The eta production rate for x(rho) p(meson)/p(beam) > 0.10 is found to be 0.355 +/- 0.01(stat) +/- 0.024(sys) per event, and the omega production rate for x(p) > 0.05 is measured as 0.585 +/- 0.019(stat) +/- 0.033(sys) per event. The branching ratio for omega --> mu(+)mu(-) investigated. A total of 18.1 +/- 5.9 events are observed, from which the muonic branching ratio is measured for the first time to be BR(omega --> mu(+)mu(-)) + 9.0 +/- 2.9(stat) 1.1(sys)) x 10(-5). (C) 2002 Elsevier Science B.V. All rights reserved. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000174402400002 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212178]  |
| 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. Inclusive production of the eta and omega mesons in Z decays, and the muonic branching ratio of the omega[J]. PHYSICS LETTERS B,2002,528(1--2):19-33. |
| APA | ALEPH Collaboration.(2002).Inclusive production of the eta and omega mesons in Z decays, and the muonic branching ratio of the omega.PHYSICS LETTERS B,528(1--2),19-33. |
| MLA | ALEPH Collaboration."Inclusive production of the eta and omega mesons in Z decays, and the muonic branching ratio of the omega".PHYSICS LETTERS B 528.1--2(2002):19-33. |
入库方式： OAI收割
来源：高能物理研究所
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