Shape coexistence studied in 182, 184Hg via the β decay of 182, 184Tl. (31st May 2017)

• Record Type: Journal Article
• Authors: Rapisarda, E; Andreyev, A N; Antalic, S; Barzakh, A; Cocolios, T E; Darby, I G; Groote, R De; Witte, H De; Diriken, J; Elseviers, J; Fedorov, D; Fedosseev, V N; Ferrer, R; Huyse, M; Kalaninová, Z; Köster, U; Lane, J; Liberati, V; Lynch, K M; Marsh, B A; Molkanov, P L; Pauwels, D; Procter, T J; Radulov, D; Sandhu, K; Seliverstov, M D; Beveren, C Van; Bergh, P Van den; Duppen, P Van; Venhart, M; Veselský, M; Wrzosek-Lipska, K;
• Is Part Of: Journal of physics. Volume 44:Number 7(2017:Jul.)
• Publication Date: 2017-05-31
• Subjects: radioactive nuclei -- shape coexistence -- β decay -- γ spectroscopy; 23.40.-s -- 27.70.+q -- 29.30.Kv; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/1361-6471/aa6bb6
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: The β + /EC decay of 182, 184 Tl to excited states in the daughter nuclei 182, 184 Hg has been investigated at the CERN on-line isotope mass separator facility. In both Tl nuclei two β -decaying states were observed. In the case of 184 Tl, narrow-band laser spectroscopy could be used to disentangle the decay of both isomers. In 182 Hg a precise energy of 335 (1) keV for the 0 2 + state was measured together with its feeding from a tentatively proposed 2 3 + state at 973 keV. Large conversion coefficients for the 2 2 + → 2 1 + transition in 182, 184 Hg were measured to be 7.2 (13) and 14.2 (36), respectively, evidencing a strong E0 component.