TY - JOUR
T1 - The mass of the electron neutrino from electron capture in 163Ho
AU - Yasumi, S.
AU - Maezawa, H.
AU - Shima, K.
AU - Inagaki, Y.
AU - Mukoyama, T.
AU - Mizogawa, T.
AU - Sera, K.
AU - Kishimoto, S.
AU - Fujioka, M.
AU - Ishii, K.
AU - Omori, T.
AU - Izawa, G.
AU - Kawakami, O.
PY - 1994/8/11
Y1 - 1994/8/11
N2 - Using an M X-ray spectrum from electron capture in 163Ho together with M X-ray fluorescence spectra of the Dy atom, the partial decay constants of 163Ho, λM1 and λM2 were measured. With λM1, λM2 and λt (total decay constant) as three constraints, the mass of the electron neutrino, mVe, the Q-value, and log(ft) of the 163Ho decay were simultaneously determined. Results obtained are mVe=110-110+350 eV, Q=2.710-0.005+0.100 keV, and log(ft)=4.993-0.001+0.030.
AB - Using an M X-ray spectrum from electron capture in 163Ho together with M X-ray fluorescence spectra of the Dy atom, the partial decay constants of 163Ho, λM1 and λM2 were measured. With λM1, λM2 and λt (total decay constant) as three constraints, the mass of the electron neutrino, mVe, the Q-value, and log(ft) of the 163Ho decay were simultaneously determined. Results obtained are mVe=110-110+350 eV, Q=2.710-0.005+0.100 keV, and log(ft)=4.993-0.001+0.030.
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U2 - 10.1016/0370-2693(94)90616-5
DO - 10.1016/0370-2693(94)90616-5
M3 - Article
AN - SCOPUS:0002497582
VL - 334
SP - 229
EP - 233
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 1-2
ER -