Unique Probe of Neutrino Electromagnetic Moments with Radiative Pair Emission

Understand

The neutrino magnetic and electric moments are zero at tree level but can arise in radiative corrections.

• Any deviation from the Standard Model prediction would provide another indication of neutrino-related new physics in addition to the neutrino oscillation and masses.
• Especially, Dirac and Majorana neutrinos have quite different structures in their electromagnetic moments.
• Nevertheless, the recoil measurements and astrophysical stellar cooling can only constrain combinations of neutrino magnetic and electric moments with the limitation of not seeing their detailed structures.