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antineutrino |
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antineutrino [ˌæntɪnjuːˈtriːnəʊ] n pl -nos (Physics / Atomic Physics) the antiparticle of a neutrino; a particle having oppositely directed spin to a neutrino, that is, spin in the direction of its momentum
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| He, Suzuki, and other scientists proposed years ago that KamLAND could detect Earth-derived antineutrinos even though the detector was designed to observe properties of more energetic antineutrinos from nuclear-power reactors (SN: 12/14/02,19. For nearly half a century, physicists have scanned nuclear reactors' radiation for evidence that the wispy fundamental particles of antimatter known as antineutrinos undergo bizarre identity transformations. The standard model predicts a type of double-beta decay in which two neutrons simultaneously decay, while two electrons and two antineutrinos are emitted. |
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