Conference Proceedings

Model independent naturalness bounds on magnetic moments of majorana neutrinos

Mikhail Gorchtein, Nicole F Bell, Michael J Ramsey-Musolf, Petr Vogel, Peng Wang, JL Feng (ed.)

SUSY06: THE 14TH INTERNATIONAL CONFERENCE ON SUPERSYMMETRY AND THE UNIFICATION OF FUNDAMENTAL INTERACTIONS | AMER INST PHYSICS | Published : 2007

Abstract

We analyze the implications of neutrino masses for the magnitude of neutrino magnetic moments. By considering electroweak radiative corrections to the neutrino mass, we derive modelindependent naturalness upper bounds on neutrino magnetic moments, generated by physics above the electroweak scale. For Majorana neutrinos, these bounds are weaker than present experimental limits if μν if generated by new physics at ∼1 TeV, and surpass current experimental sensitivity only for new physics scales > 10 - 100 TeV. The discovery of a neutrino magnetic moment near present limits would thus signify that neutrinos are Majorana particles. © 2007 American Institute of Physics.

University of Melbourne Researchers

Grants

Awarded by U.S. DOE


Funding Acknowledgements

We thank Vincenzo Cirigliano, Concha Gonzalez-Garcia, and Mark Wise for illuminating conversations. This work was supported in part under U.S. DOE contracts DEFG02-05ER41361 and DE-FG03-92ER40701.