Population of a low-spin positive-parity band from high-spin intruder states in 177Au:The two-state mixing effect

Abstract

The extremely neutron-deficient isotopes 177,179Au were studied by means of in-beam γ-ray spectroscopy. Specific tagging techniques, α-decay tagging in 177Au and isomer tagging in 179Au, were used for these studies. Feeding of positive-parity, nearly spherical states, which are associated with 2d3/2 and 3s1/2 proton-hole configurations, from the 1i13/2 proton-intruder configuration was observed in 177Au. Such a decay path has no precedent in odd-Au isotopes and it is explained by the effect of mixing of wave functions of the initial state.

Metadata

Item Type:	Article
Authors/Creators:	Venhart, M. Balogh, M. Herzáň, A. Wood, J.L. Ali, F.A. Joss, D.T. Andreyev, A.N. https://orcid.org/0000-0003-2828-0262 Auranen, K. Carroll, R.J. Drummond, M.C. Easton, J.L. Greenlees, P.T. Grahn, T. Gredley, A. Henderson, J. Jakobsson, U. Julin, R. Juutinen, S. Konki, J. Lawrie, E.A. Leino, M. Matoušek, V. McPeake, C.G. O'Donnell, D. Page, R.D. Pakarinen, J. Papadakis, P. Partanen, J. Peura, P. Rahkila, P. Ruotsalainen, P. Sandzelius, M. Sarén, J. Saygı, B. Sedlák, M. Scholey, C. Sorri, J. Stolze, S. Thornthwaite, A. Urban, R. Uusitalo, J. Veselský, M. Wearing, F.P.
Copyright, Publisher and Additional Information:	© 2020 Published by Elsevier B.V
Keywords:	In-beam spectroscopy,rays,Au,Two-state mixing
Dates:	Accepted: 11 May 2020 Published (online): 14 May 2020 Published: 10 July 2020
Institution:	The University of York
Academic Units:	The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Social Sciences (York) > Centre for Health Economics (York) The University of York > Faculty of Sciences (York) > Electronic Engineering (York)
Funding Information:	Funder Grant number SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/L005727/1 SCIENCE AND TECHNOLOGY FACILITIES COUNCIL (STFC) ST/P003885/1
Depositing User:	Pure (York)
Date Deposited:	26 May 2020 15:30
Last Modified:	10 Apr 2025 23:24
Published Version:	https://doi.org/10.1016/j.physletb.2020.135488
Status:	Published
Refereed:	Yes
Identification Number:	10.1016/j.physletb.2020.135488
Related URLs:	http://www.sciencedirect.com/science/art...
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:161204