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Título : Limits on Neutrino-Mixing from the Internal Bremsstrahlung Spectrum of I-125
Autor : García Borge, María José, Rújula, Álvaro de, Hansen, P. G., Jonson, B., Nyman, G., Ravn, H. L., Riisager, K.
Fecha de publicación : 1986
Editor: Royal Swedish Academy of Sciences
Citación : Physica Scripta 34(6A): 591-596 (1986)
Resumen: The massive antineutrino recently reported by Simpson in an experiment on tritium decay has not been confirmed by experiments on S-35 decay. As an independent check, we report here the negative result of a search for the corresponding antiparticle (a massive neutrino) using the decay of I-125. As a by-product, we give accurate data on internal-bremsstrahlung spectra which we have followed over close to four decades in intensity, and we report a new way of measuring its E1/M1 ratio. The experiment provides a new and very accurate value for the I-125-Te-125 mass difference of 186.1 ± 0.3 keV.
Descripción : 6 pages, 4 figures.
Versión del editor:
ISSN: 0281-1847
DOI: 10.1088/0031-8949/34/6A/014
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