First run II measurement of the W boson mass at the Fermilab Tevatron
Journal
Physical Review D - Particles, Fields, Gravitation and Cosmology
Journal Volume
77
Journal Issue
11
Date Issued
2008
Author(s)
Aaltonen, T. et al. (CDF Collaboration)
Abstract
We describe a measurement of the W boson mass mW using 200pb-1 of s=1.96TeV pp̄ collision data taken with the CDF II detector. With a sample of 63964 W→eν candidates and 51128 W→μν 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.
Type
journal article