|ITEM METADATA RECORD
|Title: ||Coulomb excitation of 29,30Na: Mapping the borders of the island of inversion|
|Authors: ||Seidlitz, M. ×|
Butler, P. A.
De Witte, Hilde
DiJulio, D. D.
Van Duppen, Piet
Van de Walle, J.
Woods, P. J.
Wrzosek-Lipska, Kasia #
|Issue Date: ||19-Feb-2014 |
|Publisher: ||Published for the American Physical Society by the American Institute of Physics|
|Series Title: ||Physical Review C, Nuclear Physics vol:89 pages:1-10|
|Article number: ||024309|
|Abstract: ||Nuclear shell evolution in neutron-rich Na nuclei around N = 20 was studied by determining reduced transition probabilities, i.e., B(E2) and B(M1) values, in order to map the border of the island of inversion. To this end Coulomb-excitation experiments, employing radioactive 29,30Na beams with a final beam energy of 2.85 MeV/nucleon, were performed at REX-ISOLDE, CERN. De-excitation γ rays were detected by the MINIBALL γ -ray spectrometer in coincidence with scattered particles in a segmented Si detector. Transition probabilities to excited states were deduced. The measured B(E2) values agree well with shell-model predictions, supporting the idea that in the Na isotopic chain the ground-state wave function contains significant intruder admixture already at N = 18, with N = 19 having an almost pure two-particle–two-hole deformed ground-state configuration.|
|Publication status: ||published|
|KU Leuven publication type: ||IT|
|Appears in Collections:||Nuclear and Radiation Physics Section|
× corresponding author|
# (joint) last author|
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