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antineutrino |
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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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He, coleader Atsuto Suzuki of Tohoku University in Sendai, Japan, and their colleagues spent more than 2 years looking for telltale flickers in the Kamioka Liquid Scintillator Antineutrino Detector (KamLAND)--a tough, transparent balloon filled with 1,000 tons of baby oil, benzene, and fluorescent chemicals. Now, an international team working at an antineutrino detector in Japan reports that it has observed a particle shortfall that it attributes to this subatomic morphing act. When a neutron decays in an unstable nucleus, the particle transforms into a proton, while an electron and an antineutrino flee the scene. |
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