two-component neutrino theory

two-component neutrino theory

[′tü ¦kəm¦pō·nənt nü′trē·nō ‚thē·ə·re]
(particle physics)
A theory according to which the neutrino and antineutrino have exactly zero rest mass, and the neutrino spin is always antiparallel to its motion, while the antineutrino spin is parallel to its motion.