New collective structures in the Z=76 stable odd neutron nucleus, 187Os
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Date
2021
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Western Cape
Abstract
Low- and medium-spin bands of 187Os have been studied using the AFRODITE array,
following the 186W(4He,3n)187Os reaction at a beam energy of 37 MeV. The measurements
of
coincidences, angular distribution ratios (RAD), polarization and
-intensities were performed using eleven High Purity Germanium (HPGe) clover detectors.
In the current work, all the previously known bands have been signi cantly
extended and ve new bands have been added to the level scheme. The observed
bands are interpreted within the cranked shell model (CSM), cranked Nilsson-Strutinsky-
Bogoliubov (CNSB) formalism and Quasiparticle-plus-Triaxial-Rotor (QTR) model. Systematic
comparison of bands with the neighbouring isotopes has also been made. Comparison
of the models with experimental data shows good agreement.
Description
Philosophiae Doctor - PhD
Keywords
AFRODITE, Fusion evaporation, Gamma bands, Linear polarization anisotropy