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.
Discovery of the151Eu α decay / Casali, N.; Nagorny, S. S.; Orio, Filippo; Pattavina, L.; Beeman, J. W.; Bellini, Fabio; Cardani, Laura; Dafinei, Ioan; Di Domizio, S.; Di Vacri, M. L.; Di Domizio, S.; Di Vacri, M. L.; Gironi, L.; Kosmyna, M. B.; Nazarenko, B. P.; Nisi, S.; Pessina, G.; Piperno, Gabriele; Pirro, S.; Rusconi, C.; Shekhovtsov, A. N.; Tomei, C.; Vignati, Marco. - In: JOURNAL OF PHYSICS. G, NUCLEAR AND PARTICLE PHYSICS. - ISSN 0954-3899. - 41:7(2014), p. 075101. [10.1088/0954-3899/41/7/075101]
Discovery of the151Eu α decay
N. Casali;ORIO, FILIPPO;BELLINI, Fabio;CARDANI, LAURA;DAFINEI, Ioan;PIPERNO, GABRIELE;VIGNATI, Marco
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
