Upper limit on the lifetime difference of short- and long-lived B-s(0) mesons
文献类型：期刊论文
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 1998 |
| 卷号 | 438期号:3--4页码:417-429 |
| 关键词 | B-HADRON LIFETIME LUND MONTE-CARLO AVERAGE LIFETIME OSCILLATION FREQUENCY Z-DECAYS PRECISION-MEASUREMENT SEMILEPTONIC DECAYS JET FRAGMENTATION MIXING PARAMETER L3 EXPERIMENT |
| 通讯作者 | Acciarri, M (reprint author), Ist Nazl Fis Nucl, Sez Milano, Via Celoria 16, I-20133 Milan, Italy. |
| 英文摘要 | An upper limit on the lifetime difference of short- and long-lived B-s(0) masons has been obtained using an inclusive bottom hadron sample from 2 million hadronic Z decays collected by the L3 experiment at LEP. A lifetime fit has been performed on data samples separately enriched in neutral and charged b hadrons. An experimental upper limit on the decay rate difference of short- and long-lived B-s(0) masons of (\Delta Gamma\/Gamma)(Bs0) < 0.67 (95% C.L.) has been determined. In addition, the lifetimes of B + and B-d(0) mesons have been measured to be tau(B+) = 1.66 +/- 0.06 +/- 0.03 ps and tau(B-d(0)) = 1.52 +/- 0.06 +/- 0.04 ps, where the first errors are statistical and the second are systematic. (C) 1998 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:000076799700024 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/211952]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 推荐引用方式 GB/T 7714 | . Upper limit on the lifetime difference of short- and long-lived B-s(0) mesons[J]. PHYSICS LETTERS B,1998,438(3--4):417-429. |
| APA | (1998).Upper limit on the lifetime difference of short- and long-lived B-s(0) mesons.PHYSICS LETTERS B,438(3--4),417-429. |
| MLA | "Upper limit on the lifetime difference of short- and long-lived B-s(0) mesons".PHYSICS LETTERS B 438.3--4(1998):417-429. |
入库方式： OAI收割
来源：高能物理研究所
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