Neutrino elastic scattering on polarized electrons as a tool for probing the neutrino nature

Understand

Possibility of using the polarized electron target (PET) for testing the neutrino nature is considered.

• One assumes that the incoming electron neutrino ($\nu_e$) beam is the superposition of left chiral states with right chiral ones.
• Consequently the non-vanishing transversal components of $\nu_e$ spin polarization may appear, both T-even and T-odd.
• $\nu_e$s are produced by the low energy monochromatic (un)polarized emitter located at a near distance from the hypothetical detector which is able to measure both the azimuthal angle and polar angle of the recoil electrons, and/or also the energy of the outgoing electrons with a high resolution.