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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/16258
Title: Nuclear shape transition in light gold isotopes
Authors: Wallmeroth, K.; Bollen, G.; Dohn, A.; Egelhof, P.; Krönert, U.; García Borge, María José; 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 Date: 6-Mar-1989
Publisher: Elsevier
Citation: Nuclear Physics A 493(2): 224-252 (1989)
Abstract: The 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.
Description: 29 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
URI: http://hdl.handle.net/10261/16258
DOI: 10.1016/0375-9474(89)90396-5
ISSN: 0375-9474
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