A Measurement of the Weak Mixing Angle in Neutrino-Nucleon Scattering at NuTeV

Details A Measurement of the Weak Mixing Angle in Neutrino-Nucleon Scattering at NuTeV A Measurement of the Weak Mixing Angle in Neutrino-Nucleon Scattering at NuTeV

1999-06-14

arxiv.org/abs/hep-ex/9906024v1

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, including 11 figures. To appear in the proceedings of DPF99, Los Angeles, CA, 5-9 Jan 1999

Scientific paper

The NuTeV experiment at Fermilab presents a determination of the electroweak mixing angle. High purity, large statistics samples of muon-neutrino and muon-antineutrino events allow the use of the Paschos-Wolfenstein relation. This considerably reduces systematic errors associated with charm production and other sources. With Standard Model assumptions, this measurement of sin2thw indirectly determines the W boson mass to a precision comparable to direct measurements from high energy e+e- and p-pbar colliders. NuTeV measures sin^2theta_W (on-shell) = 0.2253 +/- 0.0019(stat) +/- 0.0010(syst) which implies M_W = 80.26 +/- 0.11 GeV.

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