High-spin levels based on the 11/2- isomer in 135Ba |
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| Authors: | X. L. Che S. J. Zhu M. L. Li Y. J. Chen Y. N. U H. B. Ding L. H. Zhu X. G. Wu G. S. Li C. Y. He Y. Liu |
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| Affiliation: | (1) Department of Physics, Tsinghua University, 100084 Beijing, PRC;(2) China Institute of Atomic Energy, 102413 Beijing, PRC |
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| Abstract: | High-spin states in the 135Ba nucleus have been studied with the reaction 130Te(9Be, 4n) at a beam energy of 45 MeV. The level scheme based on the h 11/2 isomer has been expanded with spins up to 35/2 ℏ. At low spins, the yrast collective structure built on the ν h 11/2 -1 multiplet may show a transitional shape with γ > 30° according to the systematical behavior observed in neighboring nuclei as well as the calculations of the triaxial rotor-plus-particle model. The configurations for several high-spin states have been discussed from a systematical comparison with neighboring isotones. |
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| Keywords: | 23.20.Lv γ transitions and level energies 21.60.Ev Collective models 27.60.+j 90 ⩽ A ⩽ 149 |
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