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Título : Nuclear shape transition in light gold isotopes
Autor : 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., [ISOLDE Collaboration]
Palabras clave : [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
Fecha de publicación : 6-Mar-1989
Editor: Elsevier
Citación : Nuclear Physics A 493(2): 224-252 (1989)
Resumen: 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.
Descripción : 29 pages, 5 tables, 12 figures.-- This publication comprises part of the thesis of K. Wallmeroth.
Versión del editor:
ISSN: 0375-9474
DOI: 10.1016/0375-9474(89)90396-5
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