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How Magnetic is the Dirac Neutrino?

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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Abstract

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.


Item Type:Article
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
Record Number:CaltechAUTHORS:BELprl05
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:BELprl05
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.95.151802
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1893
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:22 Feb 2006
Last Modified:26 Dec 2012 08:46

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