PRODUCTION AND DECAY OF CHARMED MESONS AT THE Z-RESONANCE
文献类型：期刊论文
| 作者 | ALEPH COLLABORATION |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 1991 |
| 卷号 | 266期号:1--2页码:218-230 |
| 关键词 | E+E ANNIHILATION D-STAR |
| 通讯作者 | DECAMP, D (reprint author), CNRS, IN2P3, LAB PHYS PARTICULES LAPP, F-74019 ANNECY LE VIEUX, FRANCE. |
| 英文摘要 | In a sample of 190 000 hadronic Z decays, three signals of charm production are observed: two from the exclusive decays D0 --> K-pi+ and D*+ --> D0-pi+ --> K-pi+pi+ and one in the transverse-momentum distribution of soft hadrons relative to the nearest jet. The features of these signals are in good agreement with expectations based on the standard model and previous measurements of the branching fractions. The number of D* +/- --> K -/+ pi +/- pi +/- per hadronic decay of the Z is measured to be (5.11 +/- 0.34) x 10(-3), and the branching ratio B(D0 --> K-pi+) is (3.62 +/- 0.34 +/- 0.44)%. Charm hadronization has been studied. The average fraction of the beam energy carried by the D* meson is found to be |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:A1991GF21200036 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213872]  |
| 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. PRODUCTION AND DECAY OF CHARMED MESONS AT THE Z-RESONANCE[J]. PHYSICS LETTERS B,1991,266(1--2):218-230. |
| APA | ALEPH COLLABORATION.(1991).PRODUCTION AND DECAY OF CHARMED MESONS AT THE Z-RESONANCE.PHYSICS LETTERS B,266(1--2),218-230. |
| MLA | ALEPH COLLABORATION."PRODUCTION AND DECAY OF CHARMED MESONS AT THE Z-RESONANCE".PHYSICS LETTERS B 266.1--2(1991):218-230. |
入库方式： OAI收割
来源：高能物理研究所
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