Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2012-04-15
Physics
High Energy Physics
High Energy Physics - Experiment
Moriond QCD 2012 (8 pages, 6 figures); added report number
Scientific paper
I describe the latest D0 and CDF W boson mass measurements. The D0 measurement is performed with $4.3\, fb^{-1}$ of integrated luminosity in the electron decay channel with a data set of $1.68\times 10^{8}$ W candidates. The value of the W boson mass measured by D0 is $M_W = 80.375\pm 0.023\, GeV$ when combined with the previously analyzed $1\, fb^{-1}$ of integrated luminosity. The CDF measurement uses $2.2\, fb^{-1}$ of integrated luminosity in both electron and muon decay channels with a total of $1.1\times 10^{8}$ W candidates. The value of the W boson mass measured by CDF is $M_W = 80.387\pm 0.019\, GeV$. I report the combination of these two measurements with previous Tevatron measurements and with the LEP measurements of the W boson mass. The new world average is $M_W = 80.385\pm 0.015\, GeV$. I discuss the implications of the new measurement to the indirect measurement of the Standard Model Higgs boson mass.
-for the D0 Collaboration
de Sa Rafael Lopes
for the CDF Collaboration
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