Shape coexistence in the proton-unbound nucleus 177Au

Ali, Fuad Shape coexistence in the proton-unbound nucleus 177Au. PhD thesis, University of Liverpool.

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Abstract

Excited states of the proton-unbound nucleus 177Au have been populated following the 92Mo(88Sr,2pn) reaction in an experiment performed at the University of Jyv�askyl�a Accelerator Laboratory. Gamma rays detected in the JUROGAM spectrometer were correlated with the characteristic � decays of 177Au detected following a recoil implantation in the GREAT spectrometer. A large number of transitions (� 60 rays) have been assigned unambiguously to 177Au and ordered into four collective band structures and other singleparticle excitations. Several intruder con�gurations formed by single-proton excitations across the Z = 82 shell gap have been established. These have been interpreted as �i13=2, �f7=2 � h9=2 and �h9=2 prolate con�gurations. It has been established that the �i13=2 and �f7=2 �h9=2 bands have decay paths to both the positive-parity mixed (1/2+� 3/2+) ground state and the negative-parity 11/2

Item Type:	Thesis (PhD)
Additional Information:	Date: 2014-10 (completed)
Depositing User:	Symplectic Admin
Date Deposited:	10 Feb 2015 10:15
Last Modified:	17 Dec 2022 01:29
DOI:	10.17638/02002600
URI:	https://livrepository.liverpool.ac.uk/id/eprint/2002600