Shape coexistence in $^{180}$Hg studied through the $\beta$ decay of $^{180}$Tl

Authors :: Elseviers, J.
Andreyev, A. N.
Antalic, S.
Barzakh, A.
Bree, N.
Cocolios, T. E.
Comas, V. F.
Diriken, J.
Fedorov, D.
Fedosseyev, V. N.
Franchoo, S.
Heredia, J. A.
Huyse, M.
Ivanov, O.
Koster, U.
Marsh, B. A.
Page, R. D.
Patronis, N.
Seliverstov, M.
Tsekhanovich, I.
Van den Bergh, P.
Van De Walle, J.
Van Duppen, P.
Venhart, M.
Vermote, S.
Veselsky, M.
Wagemans, C.
Publication Year :: 2011
Abstract: The beta(+)/EC decay of (180)Tl and excited states in the daughter nucleus (180)Hg have been investigated at the CERN On-Line Isotope Mass Separator (ISOLDE) facility. Many new low-lying energy levels were observed in (180)Hg, of which the most significant are the 0(2)(+) at 419.6 keV and the 2(2)(+) at 601.3 keV. The former is the bandhead of an excited band in (180)Hg assumed originally to be of prolate nature. From the beta feeding to the different states in (180)Hg, the ground-state spin of (180)Tl was deduced to be (4(-),5(-)). Physical Review C