Revisiting Large Neutrino Magnetic Moments

Understand

Current experimental sensitivity on neutrino magnetic moments is many orders of magnitude above the Standard Model prediction.

• A potential measurement of next-generation experiments would therefore strongly request new physics beyond the Standard Model.
• However, large neutrino magnetic moments generically tend to induce large corrections to the neutrino masses and lead to fine-tuning.
• We show that in a model where neutrino masses are proportional to neutrino magnetic moments.