A measurement of B(E3;0+ → 31−) and some E2 transition probabilities in 132, 134, 136, 138Ba using Coulomb excitation |
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Authors: | S.M. Burnett A.M. Baxter S. Hinds F. Pribac R.H. Spear W.J. Vermeer |
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Affiliation: | Department of Physics and Theoretical Physics, Australian National University, Canberra 2601, Australia;Department of Nuclear Physics, Australian National University, Canberra 2601, Australia |
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Abstract: | Reduced transition probabilities, B(E2) and B(E3), have been measured for low-lying 2+ and 3? states in 132, 134, 136, 138Ba using Coulomb excitation by 40 MeV 12C ions. The B(E2) values are in general consistent with previous measurements and the B(E3;0+ → 31?) values are 0.176 ± 0.022, 0.148 ± 0.018, 0.155 ± 0.018 and 0.133 ± 0.013 e2 · b3 for 132, 134, 136, 138Ba respectively. These B(E3) values correspond to about 24 to 17 W.u. and such enhancements suggest that these 3? states have an essentially collective character which may be attributed to octupole vibrations. |
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Keywords: | Nuclear reactions |
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