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

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

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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Venhart, M, Balogh, M, Herzáň, A, Wood, J.L, Ali, F.A, Joss, D.T, Andreyev, A.N, 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
Format: Artikel
Sprache:eng
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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.
DOI:10.1016/j.physletb.2020.135488