Neutral currents and tests of three-neutrino unitarity in long-baseline experiments

Details Neutral currents and tests of three-neutrino unitarity in long-baseline experiments Neutral currents and tests of three-neutrino unitarity in long-baseline experiments

2004-07-12

arxiv.org/abs/hep-ph/0407140v1

New J.Phys.6:135,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, Latex2e, uses graphicx.sty, 2 postscript figures. Submitted to the Neutrino Focus Issue of New Journal Physics at ht

Scientific paper

10.1088/1367-2630/6/1/135

We examine a strategy for using neutral current measurements in long-baseline neutrino oscillation experiments to put limits on the existence of more than three light, active neutrinos. We determine the relative contributions of statistics, cross section uncertainties, event misidentification and other systematic errors to the overall uncertainty of these measurements. As specific case studies, we make simulations of beams and detectors that are like the K2K, T2K, and MINOS experiments. We find that the neutral current cross section uncertainty and contamination of the neutral current signal by charge current events allow a sensitivity for determining the presence of sterile neutinos at the 0.10--0.15 level in probablility.

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