We report on the first compelling observation of α decay of 151Eu to the ground state of 147Pm. The measurement was performed using a 6.15g Li6Eu(BO3)3 crystal operated as a scintillating bolometer. The Q-value and half-life measured are: Q = 1948.9±6.9(stat.) ± 5.1(syst.) keV, and T 1/2 = (4.62 ± 0.95(stat.) ± 0.68(syst.)) 1018 y. The half-life prediction of nuclear theory using the Coulomb and proximity potential model are in good agreement with this experimental result. © 2014 IOP Publishing Ltd.
Casali, N., Nagorny, S., Orio, F., Pattavina, L., Beeman, J., Bellini, F., et al. (2014). Discovery of the 151Eu α decay. JOURNAL OF PHYSICS. G, NUCLEAR AND PARTICLE PHYSICS, 41(7) [10.1088/0954-3899/41/7/075101].
Discovery of the 151Eu α decay
GIRONI, LUCA;PESSINA, GIANLUIGI EZIO;
2014
Abstract
We report on the first compelling observation of α decay of 151Eu to the ground state of 147Pm. The measurement was performed using a 6.15g Li6Eu(BO3)3 crystal operated as a scintillating bolometer. The Q-value and half-life measured are: Q = 1948.9±6.9(stat.) ± 5.1(syst.) keV, and T 1/2 = (4.62 ± 0.95(stat.) ± 0.68(syst.)) 1018 y. The half-life prediction of nuclear theory using the Coulomb and proximity potential model are in good agreement with this experimental result. © 2014 IOP Publishing Ltd.
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