Measurement of the W mass by direct reconstruction in e(+)e(-) collisions at 172 GeV
文献类型:期刊论文
| 作者 | ALEPH Collaboration |
| 刊名 | PHYSICS LETTERS B
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| 出版日期 | 1998 |
| 卷号 | 422期号:1--4页码:384-398 |
| 关键词 | MONTE-CARLO PROGRAM PAIR PRODUCTION RADIATIVE-CORRECTIONS EVENT GENERATION QED CORRECTIONS ENERGIES LEP2/NLC PHYSICS LEP |
| 通讯作者 | Barate, R (reprint author), CNRS, IN2P3, Phys Particules Lab, LAPP, F-74019 Annecy Le Vieux, France. |
| 英文摘要 | The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 10.65 pb(-1) collected with the ALEPH detector at a mean centre-of-mass energy of 172.09 GeV. The invariant mass distribution of simulated events are fitted to the experimental; distributions and the following W masses are obtained: WW --> , m(W) = 81.30 +/- 0.47(stat.) +/- 0.11(syst.)GeV/c(2), WW --> l nu(l=e,mu), m(W) = 80.54 +/- 0.47(stat.) +/- 0.11(syst.)GeV/c(2), WW --> tau nu, m(W) = 79.56 +/- 1.08(stat.) +/- 0.23(syst.) GeV/c(2). The statistical errors are the expected errors for Monte Carlo samples of the same integrated luminosity as the data. The combination of these three measurements gives: m(W) = 80.80 +/- 0.32(stat.) +/- 0.11(syst.) +/- 0.03(LEP energy) GeV/c(2). (C) 1998 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:000073344400050 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/211910] ![]() |
| 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. Measurement of the W mass by direct reconstruction in e(+)e(-) collisions at 172 GeV[J]. PHYSICS LETTERS B,1998,422(1--4):384-398. |
| APA | ALEPH Collaboration.(1998).Measurement of the W mass by direct reconstruction in e(+)e(-) collisions at 172 GeV.PHYSICS LETTERS B,422(1--4),384-398. |
| MLA | ALEPH Collaboration."Measurement of the W mass by direct reconstruction in e(+)e(-) collisions at 172 GeV".PHYSICS LETTERS B 422.1--4(1998):384-398. |
入库方式: OAI收割
来源:高能物理研究所
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