2007/05/21 by Nurse, Emily
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex)
paper · doi:10.48550/arxiv.0705.2920
I present a measurement of the W boson mass (MW) and width (GW) using 200 and 350 pb-1 of CDF Run II data respectively. The measurements, performed in both the electron and muon decay channels, rely on a fit to the W transverse mass distribution. We measure MW = 80413 +/- 48 MeV and GW = 2032 +/- 71 MeV which represent the world's single most precise measurements to date.