Quadrupole deformation of <SUP>130</SUP>Xe measured in a Coulomb-excitation experiment



Morrison, L, Hadynska-Klek, K, Podolyak, Zs, Doherty, DT, Gaffney, LP, Kaya, L, Prochniak, L, Samorajczyk-Pysk, J, Srebrny, J, Berry, T
et al (show 31 more authors) (2020) Quadrupole deformation of <SUP>130</SUP>Xe measured in a Coulomb-excitation experiment. PHYSICAL REVIEW C, 102 (5). 054304-.

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Abstract

Low-lying states in the isotope Xe130 were populated in a Coulomb-excitation experiment performed at CERN's HIE-ISOLDE facility. The magnitudes and relative signs of seven E2 matrix elements and one M1 matrix element coupling five low-lying states in Xe130 were determined using the semiclassical coupled-channel Coulomb-excitation least-squares search code gosia. The diagonal E2 matrix elements of both the 21+ and 41+ states were extracted for the first time. The reduced transition strengths are in line with those obtained from previous measurements. Experimental results were compared with the general Bohr Hamiltonian with the microscopic input from mean-field theory utilizing universal nuclear energy density functional (UNEDF0), shell-model calculations using the GCN50:82 and SN100PN interactions, and simple phenomenological models (Davydov-Filippov and γ-soft). The extracted shape parameters indicate triaxial-prolate deformation in the ground-state band. In general, good agreement between theoretical predictions and experimental values was found, while neither phenomenological model was found to provide an adequate description of Xe130.

Item Type: Article
Uncontrolled Keywords: 5106 Nuclear and Plasma Physics, 5110 Synchrotrons and Accelerators, 51 Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 23 Nov 2020 08:37
Last Modified: 21 Jun 2024 10:58
DOI: 10.1103/PhysRevC.102.054304
Open Access URL: https://journals.aps.org/prc/abstract/10.1103/Phys...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3107753