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Parity non-conservation observed in nuclear gamma-decay of (180m) Hf
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SYSNO ASEP 0309884 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Parity non-conservation observed in nuclear gamma-decay of (180m) Hf Title Nezachování parity pozorované v jaderném gama rozpadu (180m) Hf Author(s) Zákoucký, Dalibor (UJF-V) RID, SAI, ORCID
Stone, J.R. (US)
Goldring, G. (US)
Stone, N. J. (GB)
Severijns, N. (BE)
Haas, M. (DE)
Giles, T. (IL)
Koester, U. (US)
Kraev, I. S. (BE)
Lakshmi, S. (CH)
Lindroos, M. (FR)
Wauters, F. (CH)Source Title Acta physica Polonica. B. - : Jagellonian University - ISSN 0587-4254
Roč. 39, č. 2 (2008), s. 411-416Number of pages 6 s. Language eng - English Country PL - Poland Keywords parity nonconservation ; gamma decay Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000253635400018 Annotation 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). Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2009
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