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

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Venhart, M, Balogh, M, Herzáň, A, Wood, JL, Ali, FA, Joss, DT ORCID: 0000-0001-5763-8767, Andreyev, AN, Auranen, K, Carroll, RJ, Drummond, MC et al (show 33 more authors) , Easton, JL, Greenlees, PT, Grahn, T, Gredley, A, Henderson, J, Jakobsson, U, Julin, R, Juutinen, S, Konki, J, Lawrie, EA, Leino, M, Matoušek, V, McPeake, CG, O'Donnell, D, Page, RD, Pakarinen, J, Papadakis, P ORCID: 0000-0001-7509-4257, 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 and Wearing, FP (2020) Population of a low-spin positive-parity band from high-spin intruder states in ¹⁷⁷Au: The two-state mixing effect. Physics Letters B: Nuclear Physics and Particle Physics, 806. p. 135488.

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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.

Item Type:	Article
Uncontrolled Keywords:	In-beam spectroscopy
Depositing User:	Symplectic Admin
Date Deposited:	03 Jun 2020 08:46
Last Modified:	27 Feb 2023 01:42
DOI:	10.1016/j.physletb.2020.135488
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3089343