caa a22 4500 445871768 CHVBK 20180317145513.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1140/epja/i2011-11005-8 doi (NATIONALLICENCE)springer-10.1140/epja/i2011-11005-8 Congruent band structures in 154Gd [Elektronische Daten] Configuration-dependent pairing, a double vacuum and lack of $ \beta$ -vibrations [J. Sharpey-Schafer, S. Mullins, R. Bark, J. Kau, F. Komati, E. Lawrie, J. Lawrie, T. Madiba, P. Maine, A. Minkova, S. Murray, N. Ncapayi, P. Vymers] Abstract.: We have used the ($ \alpha$, 2n) and ($ \alpha$, 4n) reactions and the AFRODITE $ \gamma$ -ray spectrometer to make a comprehensive study of the nucleus 154Gd below $\ensuremath 20\hbar$ . While the first excited 02 + state at 681 keV is usually considered to be the head of a $\ensuremath K^{\pi}=0^{+}$ $ \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. The Author(s), 2011 Sharpey-Schafer J. Department of Physics, University of Western Cape, P/B X17, ZA-7535, Bellville, South Africa aut Mullins S. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut Bark R. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut Kau J. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut Komati F. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut Lawrie E. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut Lawrie J. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut Madiba T. Department of Physics, University of Western Cape, P/B X17, ZA-7535, Bellville, South Africa aut Maine P. Department of Physics, University of Western Cape, P/B X17, ZA-7535, Bellville, South Africa aut Minkova A. Faculty of Physics, St. Kliment Ohridski University of Sofia, 1164, Sofia, Bulgaria aut Murray S. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut Ncapayi N. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut Vymers P. Department of Physics, University of Western Cape, P/B X17, ZA-7535, Bellville, South Africa aut The European Physical Journal A Springer-Verlag 47/1(2011-01-01), 1-6 1434-6001 47:1<1 2011 47 10050 https://doi.org/10.1140/epja/i2011-11005-8 text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epja/i2011-11005-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sharpey-Schafer J. Department of Physics, University of Western Cape, P/B X17, ZA-7535, Bellville, South Africa aut NATIONALLICENCE 700 1- Mullins S. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut NATIONALLICENCE 700 1- Bark R. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut NATIONALLICENCE 700 1- Kau J. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut NATIONALLICENCE 700 1- Komati F. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut NATIONALLICENCE 700 1- Lawrie E. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut NATIONALLICENCE 700 1- Lawrie J. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut NATIONALLICENCE 700 1- Madiba T. Department of Physics, University of Western Cape, P/B X17, ZA-7535, Bellville, South Africa aut NATIONALLICENCE 700 1- Maine P. Department of Physics, University of Western Cape, P/B X17, ZA-7535, Bellville, South Africa aut NATIONALLICENCE 700 1- Minkova A. Faculty of Physics, St. Kliment Ohridski University of Sofia, 1164, Sofia, Bulgaria aut NATIONALLICENCE 700 1- Murray S. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut NATIONALLICENCE 700 1- Ncapayi N. iThemba Laboratory for Accelerator Based Sciences, PO Box 722, ZA-7129, Somerset-West, South Africa aut NATIONALLICENCE 700 1- Vymers P. Department of Physics, University of Western Cape, P/B X17, ZA-7535, Bellville, South Africa aut NATIONALLICENCE 773 0- The European Physical Journal A Springer-Verlag 47/1(2011-01-01), 1-6 1434-6001 47:1<1 2011 47 10050 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer