Measurement of the cross section of W-boson pair production at LEP
文献类型：期刊论文
| 作者 | L3 Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2004 |
| 卷号 | 600期号:1-2页码:#REF! |
| 通讯作者 | Achard, P (reprint author), Univ Michigan, Ann Arbor, MI 48109 USA. |
| 英文摘要 | The cross section of W-boson pair-production is measured with the L3 detector at LEP. In a data sample corresponding to a total luminosity of 629.4 pb(-1), collected at centre-of-mass energies ranging from 189 to 209 GeV, 9834 four-fermion events with W bosons decaying into hadrons or leptons are selected. The total cross section is measured with a precision of 1.4% and agrees with the Standard Model expectation. Assuming charged-lepton universality, the branching fraction for hadronic W-boson decays is measured to be: Br(W --> hadrons) = 67.50 +/- 0.42(stat.) +/- 0.30(syst.)%, in agreement with the Standard Model. Differential cross sections as a function of the W- production angle are also measured for the semi-leptonic channels qqev and qqmuv. (C) 2004 Published by Elsevier B.V. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| WOS记录号 | WOS:000224496300004 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/225553]  |
| 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 | L3 Collaboration. Measurement of the cross section of W-boson pair production at LEP[J]. PHYSICS LETTERS B,2004,600(1-2):#REF!. |
| APA | L3 Collaboration.(2004).Measurement of the cross section of W-boson pair production at LEP.PHYSICS LETTERS B,600(1-2),#REF!. |
| MLA | L3 Collaboration."Measurement of the cross section of W-boson pair production at LEP".PHYSICS LETTERS B 600.1-2(2004):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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