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, 23:41, April 29, 2013
The anti-electron neutrino is the antiparticle of the electron neutrino, and as such has an opposite charge and spin. They are emitted when a neutron turns into a proton. It has a mass of <2.2  eV. <ref>http://prd.aps.org/abstract/PRD/v84/i11/e112003</ref> Like all neutrinos, this partical is affected only by gravity and the weak nuclear force, making it extraordinarily hard to both detect and experiment upon.
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