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Octupole instability induced by rotation in the nuclei Nd |
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| Institution: | Institut für Kernphysik, KFA Jülich, D-5170, Jülich, Fed. Rep. Germany a Florida State University, Supercomputer Computations Research Institute, Tallahassee, FL 32306, USA b Institute of Physics, Warsaw Institute of Technolgy, PL-00662, Warsaw, Poland Department of Physics, Florida State University, Tallahassee, FL 32306, USA |
| Abstract: | Levels in 146,148Nd have been populated in the 150Nd( , ′ xn) reactions. Cascades of enhanced E1 transitions have been observed. B(E1)/B(E2) branching ratios, of the order of 10−6 fm−2 as well as the presence of low energy negative-parity bands indicate strong octupole effects. Shell correction type calculations suggest an explanation in terms of octupole correlations at medium spins. |
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