First Run II Measurement of the W Boson Mass with CDF

Details First Run II Measurement of the W Boson Mass with CDF First Run II Measurement of the W Boson Mass with CDF

2007-06-02

arxiv.org/abs/0706.0284v1

Physics

High Energy Physics

High Energy Physics - Experiment

Conference Proceedings for Rencontres de Moriond EW 2007

Scientific paper

The CDF collaboration has analyzed ~200/pb of Tevatron Run II data taken between February 2002 and September 2003 to measure the W boson mass. With a sample of 63964 W->e nu decays and 51128 W->mu nu decays, we measure M_W = 80413+-34(stat)+-34(syst) MeV. The total measurement uncertainty of 48 MeV makes this result the most precise single measurement of the W boson mass to date.

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