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Measurement of the neutrino mass using the inner bremsstrahlung emitted in the electron-capture decay of /sup 163/Ho

Journal Article · · Phys. Rev. A; (United States)

An experimental investigation of the spectrum of x rays emitted in the electron-capture decay of /sup 163/Ho is described. The data obtained are analyzed to determine their sensitivity to the value of the neutrino mass. At a 95% confidence level, an upper limit of 225 eV is set for the electron neutrino mass. No evidence for a finite value is found. Using available photon detectors, further improvements of this result are severely limited by uncertainties in atomic interference effects inherent to the decay.

Research Organization:
Lawrence Livermore National Laboratory, University of California, P.O. Box 808, Livermore, California 94550
OSTI ID:
6059889
Journal Information:
Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 35:2; ISSN PLRAA
Country of Publication:
United States
Language:
English