Distinguishing Dirac from Majorana neutrinos in a microwave cavity

Understand

We propose a novel scheme for distinguishing between the Dirac and Majorana nature of neutrinos via interaction of a neutrino beam with microwave photons inside a cavity.

• We study the effective photon-photon polarization exchange induced by the photon-neutrino scattering.
• The quantum field theoretical studies of such effective picture are presented for both Dirac and Majorana neutrinos.
• Our phenomenological analyses show that the difference between Dirac and Majorana neutrinos can manifest itself in scattering rate of the photons.