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Phys. Rev. D 73, 057302 (2006) [4 pages]

Can a 3+2 oscillation model explain the NuTeV electroweak results?

J. S. Ma
Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA

J. M. Conrad, M. Sorel, and G. P. Zeller
Department of Physics, Columbia University, New York, New York 10027, USA
Received 16 November 2005; published 6 March 2006

The sin2thetaW result from NuTeV falls three standard deviations from the value determined by global electroweak fits. It has been suggested that one possible explanation for this result could be the oscillation of electron neutrinos in the NuTeV beam to sterile neutrinos. This article examines several cases of masses and mixings for 3+2 neutrino oscillation models which fit the current oscillation data at 99% C.L. We conclude that electron to sterile neutrino oscillations can account for only up to a third of a standard deviation between the NuTeV determination of sin2thetaW and the standard model.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.73.057302
DOI: 10.1103/PhysRevD.73.057302
PACS: 12.15.Ff; 12.15.Ji; 13.15.+g; 14.60.St
  • 12.15.Ff
    Quark and lepton masses and mixing in electroweak interactions
  • 12.15.Ji
    Applications of electroweak models to specific processes
  • 13.15.+g
    Neutrino interactions
  • 14.60.St
    Non-standard-model neutrinos, right-handed neutrinos, etc.
  • YEAR: 2006
KEYWORDS: neutrino oscillations, electroweak theories, neutrino mass, standard model

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