The mass of the electron antineutrino can be determined by measurement of the shape of the beta spectrum of tritium near the 18.6 keV endpoint. A measurement of this spectrum has been undertaken at the Los Alamos National Laboratory, and initial results have been obtained, allowing an upper limit of 29.7 eV to be set on the neutrino mass.

Topics
Tritium, Radioactive decay, Elementary particle interactions, Leptons, Laboratories
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© 1986 American Institute of Physics.
1986
American Institute of Physics
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