Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2000-10-03
AIP Conf.Proc. 549 (2002) 809-813
Physics
High Energy Physics
High Energy Physics - Experiment
5 pages, 4 figures. To appear in the proceedings of the 7th Conference on the Intersections of Particle and Nuclear Physics (C
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, a technique which considerably reduces systematic errors associated with charm production and other sources. Within the Standard Model, this measurement of sin2thw indirectly determines the W boson mass to a precision comparable to direct measurements from high energy e+e- and ppbar colliders. NuTeV measures sin2thw(on-shell)=0.2253+/-0.0019(stat)+/-0.0010(syst), which implies M_W=80.26+/-0.11 GeV. Outside the Standard Model, this result can be used to explore the possibility of new physics; in particular, we present limits on both neutrino oscillations and the presence of extra neutral vector gauge bosons.
NuTeV Collaboration
Zeller G. . P.
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