Conference Proceedings

Magnetic moments of Dirac neutrinos

Nicole F Bell, V Cirigliano, MJ Ramsey-Musolf, R Vogel, Mark B Wise, PD Barnes (ed.), MD Cooper (ed.), RA Eisenstein (ed.), H VanHecke (ed.), GJ Stephenson (ed.)

PARTICLES AND NUCLEI | AMER INST PHYSICS | Published : 2006

Abstract

The existence of a neutrino magnetic moment implies contributions to the neutrino mass via radiative corrections. We derive model-independent "naturalness" upper bounds on the magnetic moments of Dirac neutrinos, generated by physics above the electroweak scale. The neutrino mass receives a contribution from higher order operators, which are renormalized by operators responsible for the neutrino magnetic moment. This contribution can be calculated in a model independent way. In the absence of fine-tuning, we find that current neutrino mass limits imply that μv < 10 -14 Bohr magnetons. This bound is several orders of magnitude stronger than those obtained from solar and reactor neutrino data ..

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University of Melbourne Researchers

Grants

Awarded by U.S. DOE


Awarded by NSF


Funding Acknowledgements

This work was supported in part under U.S. DOE contracts DE-FG02-05ER41361 and DE-FG03-92ER40701, and NSF grant PHY-0071856.