W boson mass and Properties

Journal article

Measurements of the W boson determine fundamental parameters of the standard model and test its internal consistency at the level of radiative corrections. In particular, the W boson mass constrains the mass of the unobserved Higgs boson through loop corrections, and the W boson width indirectly determines elements of the CKM matrix defining quark generational mixing in the electroweak interactions. The CDF Collaboration has analyzed ≈200 pb -1 of s=1.96TeV pp̄ collision data and determined the uncertainty on its W boson mass measurement to be 76 MeV. The DØ Collaboration has directly measured the W boson width to be Γ W = 2.011 ± 0.09(stat.)±0.107(syst.) GeV using 177 pb -1 of W → ev data. © 2005 American Institute of Physics.

Authors: Hays, C

• Journal: AIP Conference Proceedings
• Volume: 792
• Pages: 559-562
• Publication date: 2005-10-06
• DOI: 10.1063/1.2122099
• EISSN: 1551-7616
• ISSN: 0094-243X
• Language: English
• Keywords: CDF; DZERO; W, mass; W, width