antineutrino
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Related to Anti-neutrino: Electron antineutrino
antineutrino
[′an·tē·nü¦trē·nō] (particle physics)
The antiparticle to the neutrino; it has zero mass, spin ½, and positive helicity; there are two antineutrinos, one associated with electrons and one with muons.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.