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Title

Nuclear shape transition in light gold isotopes

AuthorsWallmeroth, K.; Bollen, G.; Dohn, A.; Egelhof, P.; Krönert, U.; García Borge, María José CSIC ORCID; Campos, J.; Rodríguez Yunta, A.; Heyde, K.; De Coster, C.; Wood, J. L.; Kluge, H.-J.
Keywords[Radioactivity ] 185,186,187,188,189m,189,190,191,192,193,195Au
Measured hfs, isotope shifts
Deduced μ, rms charge radii, deformation parameters β2
Resonance ionization mass spectroscopy, on-line isotope separator
[Nuclear moments] 197Au
Issue Date6-Mar-1989
PublisherElsevier
CitationNuclear Physics A 493(2): 224-252 (1989)
AbstractThe hyperfine structure and isotope shifts of short-lived gold isotopes with 185 ≤ A ≤190 and the l1-/2 isomer of 189Au have been investigated by application of on-line resonance ionization mass spectroscopy. A detection efficiency of ε = 10-8 for gold atoms was observed at a background of about one event per 1000 laser shots. The deduced charge radii show a drastic change between A=187 and A=186 which is interpreted as an onset of strong deformation (β2 ≈ =0.25) in 186Au and 185Au due to the influence of the πlh(9/2) intruder orbital.
Description29 pages, 5 tables, 12 figures.-- This publication comprises part of the thesis of K. Wallmeroth.
Publisher version (URL)http://dx.doi.org/10.1016/0375-9474(89)90396-5
URIhttp://hdl.handle.net/10261/16258
DOI10.1016/0375-9474(89)90396-5
ISSN0375-9474
Appears in Collections:(CFMAC-IEM) Artículos
(IQFR) Artículos

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