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Neutrino Magnetic Moments, Flavor Mixing, and the Super-Kamiokande Solar Data

Beacom, J. F. and Vogel, P. (1999) Neutrino Magnetic Moments, Flavor Mixing, and the Super-Kamiokande Solar Data. Physical Review Letters, 83 (25). pp. 5222-5225. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:BEAprl99

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Abstract

We find that magnetic neutrino-electron scattering is unaffected by oscillations for vacuum mixing of Dirac neutrinos with only diagonal moments and for Majorana neutrinos with two flavors. For Mikheyev-Smirnov-Wolfenstein mixing, these cases are again obtained, though the effective moments can depend on the neutrino energy. Thus, e.g., the magnetic moments measured with ν̅e from a reactor and νe from the Sun could be different. With minimal assumptions, we find a new limit on μν using the 825-d Super-Kamiokande solar neutrino data: |μν|≤1.5×10^-10 μB at 90% CL, comparable to the existing reactor limit.


Item Type:Article
Additional Information:©1999 The American Physical Society Received 16 July 1999 This work was supported in part by the U.S. Department of Energy under Grant No. DE-FG03-88ER-40397. J.F.B. was supported by Caltech. We thank Boris Kayser, Bob Svoboda, and Mark Vagins for discussions, and the Super-Kamiokande Collaboration for supplying the 825-d results.
Record Number:CaltechAUTHORS:BEAprl99
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:BEAprl99
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.83.5222
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2651
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:13 Apr 2006
Last Modified:18 Sep 2014 18:11

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