Measurement of the W boson mass and width in e(+)e(-) collisions at LEP
文献类型：期刊论文
| 作者 | ALEPH Collaboration |
| 刊名 | EUROPEAN PHYSICAL JOURNAL C
 |
| 出版日期 | 2006 |
| 卷号 | 47期号:2页码:309-335 |
| 关键词 | PHYSICS EVENT GENERATION PAIR PRODUCTION MONTE-CARLO NONFACTORIZABLE CORRECTIONS EINSTEIN CORRELATIONS RADIATIVE-CORRECTIONS RAPIDITY GAPS FINAL-STATES ENERGIES RECONSTRUCTION |
| 通讯作者 | Schael, S (reprint author), Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany. |
| 英文摘要 | The mass of the W boson is determined from the direct reconstruction of W decays in WW -> qqqq and WW -> lvqq events in e(+)e(-) collisions at LEP. The data sample corresponds to an integrated luminosity of 683 pb(-1) collected with the ALEPH detector at centre-of-mass energies up to 209 GeV. To minimise any effect from colour reconnection a new procedure is adopted in which low energy particles are not considered in the mass determination from the qqqq channel. The combined result from all channels is mw = 80.440 +/- 0.043(stat.) +/- 0.024(syst.) +/- 0.009(FSI) +/- 0.009 (LEP)GeV/c(2), where PSI represents the possible effects of final state interactions in the qqqq channel and LEP indicates the uncertainty in the beam energy. From two-parameter fits to the W mass and width, the W width is found to be Gamma(W) = 2.14 +/- 0.09(stat.) +/- 0.04(syst.) +/- 0.05 (FSI) +/- 0.01 (LEP)GeV. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000241559800003 |
| 公开日期 | 2016-02-26 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212733]  |
| 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 boson mass and width in e(+)e(-) collisions at LEP[J]. EUROPEAN PHYSICAL JOURNAL C,2006,47(2):309-335. |
| APA | ALEPH Collaboration.(2006).Measurement of the W boson mass and width in e(+)e(-) collisions at LEP.EUROPEAN PHYSICAL JOURNAL C,47(2),309-335. |
| MLA | ALEPH Collaboration."Measurement of the W boson mass and width in e(+)e(-) collisions at LEP".EUROPEAN PHYSICAL JOURNAL C 47.2(2006):309-335. |
入库方式： OAI收割
来源：高能物理研究所
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