Title: Parity non-conservation observed in nuclear gamma-decay of (180m) Hf
Authors: Zakoucky, D ×
Stone, J. R
Goldring, G
Stone, N. J
Severijns, Natalis
Hass, M
Giles, T
Koester, U
Kraev, I. S
Lakshmi, S
Lindroos, M
Wauters, F #
Issue Date: Feb-2008
Publisher: Państwowe Wydawn. Naukowe
Series Title: Acta Physica Polonica B vol:39 issue:2 pages:411-416
Conference: Bormio Nuclear Physics Meeting location:Bormio date:January 2007
Abstract: This paper presents results of experiment which studied (using the Nuclear-Orientation technique) the gamma-decay of isomeric Hf-180m. The described experiment used the newly developed mass-separated Hf-180m beam at ISOLDE, CERN which was implanted into an iron foil polarized at millikelvin temperatures. The observed irregular admixture of E2 to M2/E3 multipolarity in 501 keV 8(-) -> 6(+) gamma-transition was the clear experimental evidence for parity mixing in nuclear states. The temperature dependence of the forward-backward asymmetry of the angular distribution has been measured over extended range of temperatures (and therefore nuclear polarizations), proving a parity mixing of the 8(-) and 8(+) nuclear levels. The value found for the E2/M2 mixing ratio epsilon = -0.032(2) of this transition is in close agreement with averaged value of all previously published results epsilon = -0.030(2).
ISSN: 0587-4254
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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