Journal
EUROPEAN PHYSICAL JOURNAL A
Volume 47, Issue 1, Pages -Publisher
SPRINGER
DOI: 10.1140/epja/i2011-11005-8
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Funding
- Joyce Frances Adlard Cultural Fund
- John Singer Sargent
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We have used the (alpha, 2n) and (alpha, 4n) reactions and the AFRODITE gamma-ray spectrometer to make a comprehensive study of the nucleus Gd-154 below 20 (h) over bar. While the first excited 0(2)(+) state at 681 keV is usually considered to be the head of a K-pi = 0(+) beta-vibrational band, we propose that the data are best described as two separate vacuum states, the ground state and the 681 keV level, each with its own gamma and octupole vibrations, pairing and alignments. The implications of this finding, for understanding the structure of transitional rare-earth nuclei, are discussed.
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