Measurement of the W-pair production cross section and W-decay branching fractions in e(+)e(-) interactions at root s=189 GeV
文献类型：期刊论文
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2000 |
| 卷号 | 496期号:1--2页码:19-33 |
| 关键词 | CARLO EVENT GENERATOR EXPONENTIATED MONTE-CARLO (UN)STABLE W+W-PRODUCTION QED RADIATIVE-CORRECTIONS ANGLE BHABHA SCATTERING LEP2 ENERGIES L3 EXPERIMENT GAUGE FIELDS ROOT-S Z-PEAK |
| 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 | The data collected by the L3 experiment at LEP at a centre-of-mass energy of 188.6 GeV are used to measure the W-pair production cross section and the W-boson decay branching fractions. These data correspond to an integrated luminosity of 176.8 pb-l. The total cross section for W-pair production, combining all final states, is measured to be sigma (W) = 16.24 +/- 0.37 (stat.) +/- 0.22 (syst.) pb. Including our data collected at lower centre-of-mass energies, the hadronic branching fraction of the W-boson is determined to be B(W --> qq) = [68.20 +/- 0.68 (stat.) +/- 0.33 (syst.)]%. The results agree with the Standard Model predictions. (C) 2000 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:000166228400003 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212092]  |
| 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 | . Measurement of the W-pair production cross section and W-decay branching fractions in e(+)e(-) interactions at root s=189 GeV[J]. PHYSICS LETTERS B,2000,496(1--2):19-33. |
| APA | (2000).Measurement of the W-pair production cross section and W-decay branching fractions in e(+)e(-) interactions at root s=189 GeV.PHYSICS LETTERS B,496(1--2),19-33. |
| MLA | "Measurement of the W-pair production cross section and W-decay branching fractions in e(+)e(-) interactions at root s=189 GeV".PHYSICS LETTERS B 496.1--2(2000):19-33. |
入库方式： OAI收割
来源：高能物理研究所
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