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Phys. Rev. D 77, 112001 (2008) [48 pages]

First run II measurement of the W boson mass at the Fermilab Tevatron

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T. Aaltonen et al. CDF Collaboration
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Received 28 August 2007; published 5 June 2008

We describe a measurement of the W boson mass mW using 200  pb-1 of s=1.96  TeV pp̅ collision data taken with the CDF II detector. With a sample of 63 964 Weν candidates and 51 128 Wμν candidates, we measure mW=[80.413±0.034(stat)±0.034(sys)=80.413±0.048]  GeV/c2. This is the single most precise mW measurement to date. When combined with other measured electroweak parameters, this result further constrains the properties of new unobserved particles coupling to W and Z bosons.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.77.112001
DOI:
10.1103/PhysRevD.77.112001
PACS:
13.38.Be, 12.15.Ji, 13.85.Qk, 14.70.Fm