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

J. S. Ma*

J. M. Conrad, M. Sorel, and G. P. Zeller

  • Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA

  • Department of Physics, Columbia University, New York, New York 10027, USA

  • *Electronic address: jyuko@andrew.cmu.edu
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Phys. Rev. D 73, 057302 – Published 6 March, 2006

DOI: https://doi.org/10.1103/PhysRevD.73.057302

Abstract

The sin2θW 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 sin2θW and the standard model.

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Phys. Rev. D 73, 057302– Published 6 March, 2006
  • Received 16 November 2005

© 2006 American Physical Society

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