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Closed Access item Nuclear shape transition in neutron-deficient gold isotopes

Authors:Wallmeroth, K.
Bollen, G.
García Borge, María José
Campos, J.
Dohn, A.
Egelhof, P.
Grüner, J.
Kluge, H.-J.
Krönert, U.
Lindenlauf, F.
Moore, R. B.
Rodriguez, A.
Venugopalan, A.
Wood, J. L.
[ISOLDE Collaboration]
Issue Date:Mar-1987
Citation:Hyperfine Interactions 34(1-4): 21-24 (1987)
Abstract:On-line resonance ionization mass spectrometry has been applied to determine the isotope shift and hyperfine structure of 185–189Au and tne I=11/2 isomer of 189Au in the 6s 2S(1/2)-->6p2P(1/2) (h = 268 nm) transition. The Au atoms were obtained as daughters of mass-separated Hg isotopes produced at the ISOLDE facility at CERN, ionized by a three-step resonant photoionization process, detected and mass-selected by time of flight. A drastic change of the nuclear charge radius was observed between 187Au and 186Au, which is interpreted as an onset of strong deformation of β2 ≈ 0.25 in 186Au and 185Au.
Description:4 pages, 1 table, 4 figures.
Publisher version (URL):http://dx.doi.org/10.1007/BF02072675
ISSN:0304-3843 (Print)
1572-9540 (Online)
Appears in Collections:(CFMAC-IEM) Artículos

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