Bottom production cross section from double muonic decays of b-flavoured hadrons in 920 GeV proton-nucleus collisions
文献类型：期刊论文
| 作者 | HERA-B Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2007 |
| 卷号 | 650期号:2--3页码:103-110 |
| 关键词 | OUTER TRACKER DETECTOR HERA-B FIXED-TARGET QUARK HADROPRODUCTION SYSTEM PERFORMANCE PHYSICS J/PSI RING |
| 通讯作者 | Zoccoli, A (reprint author), Univ Bologna, Dipartmento Fis, I-40126 Bologna, Italy. |
| 英文摘要 | The b (b) over bar production cross section in 920 GeV proton-nucleus fixed target collisions is measured by observing double muonic decays of b-flavoured hadrons in the kinematic region -0.3 < X-F(mu) < 0.15. A total number of 83 +/- 12b (b) over bar events is obtained with a likelihood fit of the signal and background simulated events to the data. The resulting cross section is sigma(b (b) over bar) = 17.5 +/- 2.6(stat) +/- 3.3(sys) nb/nucleon, or, when combined with a previous HERA-B measurement of similar precision, sigma(b (b) over bar) = 15.8 +/- 1.7(stat) +/- 1.3(sys)(uncorr) +/- 2.0(sys)(corr) nb/nucleon, which is consistent with recent NLO calculations. (C) 2007 Published by Elsevier B.V. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000248259500002 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212824]  |
| 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 | HERA-B Collaboration. Bottom production cross section from double muonic decays of b-flavoured hadrons in 920 GeV proton-nucleus collisions[J]. PHYSICS LETTERS B,2007,650(2--3):103-110. |
| APA | HERA-B Collaboration.(2007).Bottom production cross section from double muonic decays of b-flavoured hadrons in 920 GeV proton-nucleus collisions.PHYSICS LETTERS B,650(2--3),103-110. |
| MLA | HERA-B Collaboration."Bottom production cross section from double muonic decays of b-flavoured hadrons in 920 GeV proton-nucleus collisions".PHYSICS LETTERS B 650.2--3(2007):103-110. |
入库方式： OAI收割
来源：高能物理研究所
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