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Quadrupole deformation of Xe 130 measured in a Coulomb-excitation experiment

Morrison, L. ; Hadyńska-Klek, K. ; Podolyák, Zs ; Doherty, D. T. ; Gaffney, L. P. ; Kaya, L. ; Próchniak, L. ; Samorajczyk-Pyśk, J. ; Srebrny, J. and Berry, T. , et al. (2020) In Physical Review C 102(5).
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),... (More)

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.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C
volume
102
issue
5
article number
054304
publisher
American Physical Society
external identifiers
  • scopus:85096103490
ISSN
2469-9985
DOI
10.1103/PhysRevC.102.054304
language
English
LU publication?
yes
id
52b040ef-27df-4dfe-b3fe-74b9a04344eb
date added to LUP
2020-11-26 12:49:29
date last changed
2022-04-19 02:14:10
@article{52b040ef-27df-4dfe-b3fe-74b9a04344eb,
  abstract     = {{<p>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. </p>}},
  author       = {{Morrison, L. and Hadyńska-Klek, K. and Podolyák, Zs and Doherty, D. T. and Gaffney, L. P. and Kaya, L. and Próchniak, L. and Samorajczyk-Pyśk, J. and Srebrny, J. and Berry, T. and Boukhari, A. and Brunet, M. and Canavan, R. and Catherall, R. and Colosimo, S. J. and Cubiss, J. G. and De Witte, H. and Fransen, Ch and Giannopoulos, E. and Hess, H. and Kröll, T. and Lalović, N. and Marsh, B. and Palenzuela, Y. Martinez and Napiorkowski, P. J. and O'Neill, G. and Pakarinen, J. and Ramos, J. P. and Reiter, P. and Rodriguez, J. A. and Rosiak, D. and Rothe, S. and Rudigier, M. and Siciliano, M. and Snäll, J. and Spagnoletti, P. and Thiel, S. and Warr, N. and Wenander, F. and Zidarova, R. and Zielińska, M.}},
  issn         = {{2469-9985}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{Quadrupole deformation of Xe 130 measured in a Coulomb-excitation experiment}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.102.054304}},
  doi          = {{10.1103/PhysRevC.102.054304}},
  volume       = {{102}},
  year         = {{2020}},
}