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

M. Venhart, M. Balogh, A. Herzáň, J.L. Wood, F.A. Ali, D.T. Joss, A.N. Andreyev, K. Auranen, R.J. Carroll, M.C. Drummond, J.L. Easton, P.T. Greenlees, T. Grahn, A. Gredley, J. Henderson, U. Jakobsson, R. Julin, S. Juutinen, J. Konki, E.A. LawrieM. Leino, V. Matoušek, C.G. McPeake, D. O'Donnell, R.D. Page, J. Pakarinen, P. Papadakis, J. Partanen, P. Peura, P. Rahkila, P. Ruotsalainen, M. Sandzelius, J. Sarén, B. Saygı, M. Sedlák, C. Scholey, J. Sorri, S. Stolze, A. Thornthwaite, R. Urban, J. Uusitalo, M. Veselský, F.P. Wearing

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Article number135488
JournalPhysics Letters B
Early online date14 May 2020
Publication statusPublished - 10 Jul 2020

Bibliographical note

© 2020 Published by Elsevier B.V


  • In-beam spectroscopy
  • rays
  • Au
  • Two-state mixing

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