Measurement of W-pair cross sections in e(+)e(-) interactions at root s = 183 GeV and W-decay branching fractions
文献类型：期刊论文
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 1998 |
| 卷号 | 436期号:3--4页码:437-452 |
| 关键词 | FRAUTSCHI-SUURA EXPONENTIATION ELECTRON-POSITRON COLLISIONS CARLO EVENT GENERATOR STATE QED CORRECTIONS CERN PBARP COLLIDER MONTE-CARLO BOSON MASS BHABHA SCATTERING E+E COLLISIONS ROOT-S=161 GEV |
| 通讯作者 | Acciarri, M (reprint author), Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany. |
| 英文摘要 | We report on the measurement of W-boson pair-production with the L3 detector at LEP, In a data sample corresponding to a total luminosity of 55.47 pb(-1) collected at an average centre-of-mass energy of 182.68 GeV, we select 824 four-fermion events with pairs of hadronic jets or pairs of leptons with high invariant masses. Branching fractions of W decays into different fermion-antifermion pairs are determined, Assuming charged-current lepton universality, the branching fraction for hadronic W decays is measured to be: B(W --> hadrons) = 70.1 +/- 1.3(stat.) +/- 0.4(syst.) %. Combining all final states the total cross section for W-pair production is measured to be: sigma(WW) = 16.53 +/- 0.67(stat.) +/- 0.26(syst.) pb. (C) 1998 Elsevier Science B.V, All rights reserved. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000076460900028 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/211949]  |
| 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 W-pair cross sections in e(+)e(-) interactions at root s = 183 GeV and W-decay branching fractions[J]. PHYSICS LETTERS B,1998,436(3--4):437-452. |
| APA | (1998).Measurement of W-pair cross sections in e(+)e(-) interactions at root s = 183 GeV and W-decay branching fractions.PHYSICS LETTERS B,436(3--4),437-452. |
| MLA | "Measurement of W-pair cross sections in e(+)e(-) interactions at root s = 183 GeV and W-decay branching fractions".PHYSICS LETTERS B 436.3--4(1998):437-452. |
入库方式： OAI收割
来源：高能物理研究所
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