Atomic mass differences in gadolinium and terbium and the K-capture of 158Tb as an indicator of neutrino mass

A high-resolution mass spectrometer has been used to determine six precise atomic mass differences in gadolinium and terbium. These are combined with nuclear reaction and decay Q-values in a least-squares adjustment to give “best” values for the mass differences. The Q EC-value of 1220.64±0.83 keV f...

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Bibliographic Details
Published inPhysics letters. B Vol. 157; no. 2; pp. 139 - 142
Main Authors Dyck, G.R., Ellis, R.J., Sharma, K.S., Lander, C.A., Sidky, M.H., Barber, R.C., Duckworth, H.E.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.07.1985
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Summary:A high-resolution mass spectrometer has been used to determine six precise atomic mass differences in gadolinium and terbium. These are combined with nuclear reaction and decay Q-values in a least-squares adjustment to give “best” values for the mass differences. The Q EC-value of 1220.64±0.83 keV for 158Tb precludes K-capture to the 1187 keV state in 158Gd.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(85)91533-3