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Open Access item Limits on Neutrino-Mixing from the Internal Bremsstrahlung Spectrum of I-125

Authors:García Borge, María José
Rújula, Álvaro de
Hansen, P. G.
Jonson, B.
Nyman, G.
Ravn, H. L.
Riisager, K.
Issue Date:1986
Publisher:Kungl. Svenska vetenskapsakademien (Royal Swedish Academy of Sciences)
Citation:Physica Scripta 34(6A): 591-596 (1986)
Abstract: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.
Description:6 pages, 4 figures.
Publisher version (URL):http://dx.doi.org/10.1088/0031-8949/34/6A/014
URI:http://hdl.handle.net/10261/11429
ISSN:0281-1847
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Appears in Collections:(CFMAC-IEM) Artículos

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