Band coupling and crossing in nuclei |
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| Authors: | R Nojarov E Nadjakov |
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| Institution: | 1. Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia 1184 Bulgaria;2. Faculty of Physics, Sofia University, Sofia 1126, Bulgaria |
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| Abstract: | A model of coupled rotational bands, including three types of phonons, β, γ and S(Kπ = 1+ or 0+), is proposed and applied to a number of even-even rare earth back-bending nuclei. It reproduces the most complicated experimentally known multiple-band crossings in 154Gd, 156Dy, 164Er and the clockwise circling of the yrast B(E2) values (versus ω2) in back-bending nuclei. The direct coupling strengths, derived from a fit to experimental data, are discussed in detail. |
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| Keywords: | Radioactivity |
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