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Everything about Electron Antineutrino totally explained

In physics, antineutrinos, the antiparticles of neutrinos, are neutral particles produced in nuclear beta decay. These are emitted in beta particle emissions, where a neutron turns into a proton. They have a spin of 1/2, and they're part of the lepton family of particles. The antineutrinos observed so far all have right-handed helicity (for example, only one of the two possible spin states has ever been seen), while the neutrinos are left-handed. Antineutrinos interact with other matter only through the gravitational and weak forces, making them very difficult to detect experimentally. Neutrino oscillation experiments indicate that antineutrinos have mass, but beta decay experiments constrain that mass to be very small.
   Because antineutrinos and neutrinos are neutral particles it's possible that they're actually the same particle. Particles which have this property are known as Majorana particles. If neutrinos are indeed Majorana particles then the neutrinoless double beta decay process is allowed. Several experiments have been proposed to search for this process.
   Researchers around the world have begun to investigate the possibility of using antineutrinos for reactor monitoring in the context of nonproliferation.

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