corner
corner

Phys. Rev. Lett. 99, 151801 (2007) [7 pages]

First Measurement of the W-Boson Mass in Run II of the Tevatron

Download: PDF (265 kB) Buy this article Export: BibTeX or EndNote (RIS)

T. Aaltonen et al. CDF Collaboration
Show All Authors/Affiliations

Received 3 July 2007; published 12 October 2007

We present a measurement of the W-boson mass using 200  pb-1 of data collected in pp̅ collisions at s=1.96  TeV by the CDF II detector at run II of the Fermilab Tevatron. With a sample of 63 964 Weν candidates and 51 128 Wμν candidates, we measure MW=80 413±34stat±34syst=80 413±48  MeV/c2. This is the most precise single measurement of the W-boson mass to date.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.151801
DOI:
10.1103/PhysRevLett.99.151801
PACS:
14.70.Fm, 13.38.Be, 13.85.Qk