beta decay of the very neutron-deficient Ge-60 and Ge-62 nuclei
Date
2021Author
Takeda, H.
Agramunt, J.
Ahn, D. S.
Ascher, P.
Blank, B.
Borcea, C.
Boso, A.
Cakirli, R. B.
Chiba, J.
de Angelis, G.
de France, G.
Diel, F.
Doornenbal, P.
Fujita, Y.
Fukuda, N.
Ganioglu, E.
Gerbaux, M.
Giovinazzo, J.
Go, S.
Goigoux, T.
Grevy, S.
Guadilla, V
Inabe, N.
Kiss, G. G.
Kubo, T.
Kubono, S.
Kurtukian-Nieto, T.
Yagi, S.
Napoli, D.
Nishimura, D.
Nishimura, S.
Oikawa, H.
Phong, V. H.
Lubos, D.
Sakurai, H.
Shimizu, Y.
Sidong, C.
Soderstrom, P-A
Sumikama, T.
Suzuki, H.
Takei, Y.
Tanaka, M.
Magron, C.
Molina, F.
Montaner-Piza, A.
Wu, J.
Orrigo, S. E. A.
Rubio, B.
Gelletly, W.
Aguilera, P.
Algora, A.
Morales, A.
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Show full item recordAbstract
We report here the results of a study of the beta decay of the proton-rich Ge isotopes, Ge-60 and Ge-62, produced in an experiment at the RIKEN Nishina Center. We have improved our knowledge of the half-lives of Ge-62 [73.5(1) ms] and Ge-60 [25.0(3) ms] and its daughter nucleus, Ga-60 [69.4(2) ms]. We measured individual beta-delayed proton and gamma emissions and their related branching ratios. Decay schemes and absolute Fermi and Gamow-Teller transition strengths have been determined. The mass excesses of the nuclei under study have been deduced. A total beta-delayed proton-emission branching ratio of 67(3)% has been obtained for Ge-60. New information has been obtained on the energy levels populated in Ga-60 and on the 1/2(-) excited state in the beta p daughter Zn-59. We extracted a ground state-to-ground state feeding of 85.3(3)% for the decay of Ge-62. Eight new y lines have been added to the deexcitation of levels populated in the Ga-62 daughter.
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