Phys.Scr. 34, 591 (1986)

M.J.G.Borge, A.De Rujula, P.G.Hansen, B.Jonson, G.Nyman, H.L.Ravn, K.Riisager, and the ISOLDE Collaboration

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

RADIOACTIVITY ¹²⁵I(EC) [from La(p, X), E=600 MeV]; measured internal bremsstrahlung spectra; deduced Q, (E1/M1) ratio, no massive neutrino evidence. ¹²⁵I, ¹²⁵Te deduced mass difference. Ge detectors.