Triaxiality and rotational bands in 133ce
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Date
2021
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Western Cape
Abstract
The neutron-de cient nuclei between the N = 50 and N = 82 shell closures provide
rich information on the shape and structure of the nucleus. The isotones of 133Ce
and 131Ba (N = 75) lie in this region of the nuclear chart. The properties of two
recently discovered positive-parity rotational bands based on the g7=2 orbital were
studied in this work. The rotational bands in both nuclei are based on the 7=2+
state. The quasiparticle+triaxial rotor (QTR) model was used to understand
the dependence of the excitation energies and the signature splitting in these
bands as a function of triaxiality. In addition to triaxiality, the e ects of the
Coriolis interaction on the excitation energies and the signature splitting was also
investigated.
Description
>Magister Scientiae - MSc
Keywords
Signature splitting, Wobbling, Nuclear triaxiality, Tilted precession, Rotational bands