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arXiv · hep-ex/0102026

A New Upper Limit for the Tau-Neutrino Magnetic Moment

DONUT Collaboration
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Abstract

Using a prompt neutrino beam in which a nu_tau component was identified for the first time, the nu_tau magnetic moment was measured based on a search for an anomalous increase in the number of neutrino-electron interactions. One such event was observed when 2.3 were expected from background processes, giving an upper 90% confidence limit of 3.9x10^-7 Bohr magnetons.

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DONUT Collaboration. 2001-02-11. A New Upper Limit for the Tau-Neutrino Magnetic Moment. https://doi.org/10.1016/s0370-2693(01)00746-8

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