Bell, Nicole F. and Cirigliano, V. and Ramsey-Musolf, M. J. and Vogel, P. and Wise, Mark B. (2005) How Magnetic is the Dirac Neutrino? Physical Review Letters, 95 (15). Art. No. 151802. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:BELprl05
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We derive model-independent, "naturalness" upper bounds on the magnetic moments µnu of Dirac neutrinos generated by physics above the scale of electroweak symmetry breaking. In the absence of fine-tuning of effective operator coefficients, we find that current information on neutrino mass implies that |µnu|<~10-14 bohr magnetons. This bound is several orders of magnitude stronger than those obtained from analyses of solar and reactor neutrino data and astrophysical observations.
|Additional Information:||©2005 The American Physical Society (Received 26 April 2005; published 4 October 2005) This work was supported in part under U.S. DOE Contracts No. DE-FG02-05ER41361 and No. DE-FG03-92ER40701, and NSF Grant No. PHY-0071856.|
|Subject Keywords:||neutrino mass; neutrinos; neutrino magnetic moment; electroweak theories; spontaneous symmetry breaking; neutrino oscillations|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||22 Feb 2006|
|Last Modified:||26 Dec 2012 08:46|
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