Two quasiparticle wobbling in the even-even nucleus 130Ba

Y.K. Wang; F.Q. Chen; P.W. Zhao

Physics Letters B (Mar 2020)

Two quasiparticle wobbling in the even-even nucleus 130Ba

Y.K. Wang,
F.Q. Chen,
P.W. Zhao

Affiliations

Y.K. Wang: State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
F.Q. Chen: School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710129, China
P.W. Zhao: State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China; Corresponding author.

Journal volume & issue: Vol. 802

Abstract

Read online

Two newly observed bands built on a two-quasiparticle configuration in 130Ba have been investigated for the first time with the microscopic projected shell model. The experimental energy spectra and the available electromagnetic transition probabilities are well reproduced. The wobbling character of the higher band is revealed by the angular momentum projected wavefunctions via the K plot and the azimuthal plot. This provides the first strong microscopic evidence for wobbling motion based on a two-quasiparticle configuration in even-even nuclei. Keywords: Nuclear wobbling, Projected shell model, K plot, Azimuthal plot

Published in Physics Letters B

ISSN: 0370-2693 (Print); 1873-2445 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/physics-letters-b/

About the journal