Β decay studies of n-rich Cs isotopes with the ISOLDE Decay Station. (21st March 2017)

• Record Type: Journal Article
• Authors: Lică, R; Benzoni, G; Morales, A I; Borge, M J G; Fraile, L M; Mach, H; Madurga, M; Sotty, C; Vedia, V; Witte, H De; Benito, J; Berry, T; Blasi, N; Bracco, A; Camera, F; Ceruti, S; Charviakova, V; Cieplicka-Oryńczak, N; Costache, C; Crespi, F C L; Creswell, J; Fernández-Martínez, G; Fynbo, H; Greenlees, P; Homm, I; Huyse, M; Jolie, J; Karayonchev, V; Köster, U; Konki, J; Kröll, T; Kurcewicz, J; Kurtukian-Nieto, T; Lazarus, I; Leoni, S; Lund, M; Marginean, N; Marginean, R; Mihai, C; Mihai, R; Negret, A; Orduz, A; Patyk, Z; Pascu, S; Pucknell, V; Rahkila, P; Regis, J M; Rotaru, F; Saed-Sami, N; Sánchez-Tembleque, V; Stanoiu, M; Tengblad, O; Thuerauf, M; Turturica, A; Duppen, P Van; Warr, N;
• Is Part Of: Journal of physics. Volume 44:Number 5(2017:May)
• Publication Date: 2017-03-21
• Subjects: β decay -- exotic nuclei -- nuclear deformation -- ISOLDE; 21.10.-k -- 23.40.-s -- 23.230.Lv -- 27.60.+j; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/1361-6471/aa6015
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: Neutron-rich Ba isotopes are expected to exhibit octupolar correlations, reaching their maximum in isotopes around mass A = 146. The odd- A neutron-rich members of this isotopic chain show typical patterns related to non-axially symmetric shapes, which are however less marked compared to even- A ones, pointing to a major contribution from vibrations. In the present paper we present results from a recent study focused on 148–150 Cs β -decay performed at the ISOLDE Decay Station equipped with fast-timing detectors. A detailed analysis of the measured decay half-lives and decay scheme of 149 Ba is presented, giving a first insight in the structure of this neutron-rich nucleus.