# Congruent band structures in 154Gd : Configuration-dependent pairing, a double vacuum and lack of $\beta$ -vibrations

@article{SharpeySchafer2011CongruentBS,
title={Congruent band structures in 154Gd : Configuration-dependent pairing, a double vacuum and lack of \$\beta\$ -vibrations},
author={John F. Sharpey-Schafer and Sean M. Mullins and R. A. Bark and J. Kau and F. S. Komati and E. A. Lawrie and J. J. Lawrie and Thandinkosi E. Madiba and Portland Maine and A. P. Minkova and S. T. H. Murray and N. J. Ncapayi and P. A. Vymers},
journal={The European Physical Journal A},
year={2011},
volume={47},
pages={1-6}
}
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… CONTINUE READING

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## Octupole and quadrupole structures in the N=88 nucleus 152Gd

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