Determination of alpha(S) from hadronic event shapes in e(+)e(-) annihilation at 192 <= root s <= 208 GeV
文献类型：期刊论文
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2002 |
| 卷号 | 536期号:3--4页码:217-228 |
| 关键词 | ANGLE BHABHA SCATTERING MONTE-CARLO SIMULATION LEPTON PAIR PRODUCTION E+E-ANNIHILATION CROSS-SECTIONS L3 EXPERIMENT QUANTUM CHROMODYNAMICS QCD MODELS ORDER QCD Z-PEAK |
| 通讯作者 | Achard, P (reprint author), Univ Geneva, CH-1211 Geneva 4, Switzerland. |
| 英文摘要 | Results are presented from a study of the structure of high energy hadronic events recorded by the L3 detector at root(s) greater than or equal to192 GeV. The distributions of several event shape variables are compared to resummed O(alpha(s)(2)) QCD calculations. We determine the strong coupling constant at three average centre-of-mass energies: 194.4, 200.2 and 206.2 GeV. These measurements, combined with previous L3 measurements at lower energies, demonstrate the running of alpha(s) as expected in QCD and yield alpha(s)(m(Z)) = 0.1227 +/- 0.0012 +/- 0.0058, where the first uncertainty is experimental and the second is theoretical. (C) 2002 Published by Elsevier Science 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:000176427600005 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212210]  |
| 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 | . Determination of alpha(S) from hadronic event shapes in e(+)e(-) annihilation at 192 <= root s <= 208 GeV[J]. PHYSICS LETTERS B,2002,536(3--4):217-228. |
| APA | (2002).Determination of alpha(S) from hadronic event shapes in e(+)e(-) annihilation at 192 <= root s <= 208 GeV.PHYSICS LETTERS B,536(3--4),217-228. |
| MLA | "Determination of alpha(S) from hadronic event shapes in e(+)e(-) annihilation at 192 <= root s <= 208 GeV".PHYSICS LETTERS B 536.3--4(2002):217-228. |
入库方式： OAI收割
来源：高能物理研究所
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