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$β$ decay studies of n-rich Cs isotopes with the ISOLDE Decay Station

By R Lică, G Benzoni, A I Morales, M J G Borge, L M Fraile, H Mach, M Madurga, C Sotty, V Vedia, H De Witte, J Benito, T Berry, N Blasi, A Bracco, F Camera, S Ceruti, V Charviakova, N Cieplicka-Oryńczak, C Costache, F C L Crespi, J Creswell, G Fernández-Martínez, H Fynbo, P Greenlees, I Homm, M Huyse, J Jolie, V Karayonchev, U Köster, J Konki, T Kröll, J Kurcewicz, T Kurtukian-Nieto, I Lazarus, S Leoni, M Lund, N Marginean, R Marginean, C Mihai, R Mihai, A Negret, A Orduz, Z Patyk, S Pascu, V Pucknell, P Rahkila, J M Regis, F Rotaru, N Saed-Sami, V Sánchez-Tembleque, M Stanoiu, O Tengblad, M Thuerauf, A Turturica, P Van Duppen and N Warr

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

Topics: Nuclear Physics - Experiment
Publisher: 'IOP Publishing'
Year: 2017
DOI identifier: 10.1088/1361-6471/aa6015
OAI identifier: oai:inspirehep.net:1519086
Provided by: CERN Document Server
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