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Relativistic mean-field study for Zn isotopes

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Abstract.

The ground-state properties of Zn isotopes have been investigated using the deformed relativistic mean-field (RMF) theory with the NL-SH and TM1 forces. The π-meson and the spatial component of the ω-meson are taken into account. Shell effects in nuclear sizes and neutron skins are well described. Strong deformations are found for most of Zn isotopes. The shape coexistence of prolate-oblate types exists for a high portion of Zn isotopes. The occurrence of the superdeformed minimum in even isotopes is discussed. The π-meson contribution in ground-state properties of odd Zn isotopes is very limited, whereas the spatial component of the ω-meson that couples to the nonzero vector current in deformed odd nuclei gives rise to the degeneracy breaking of the level with opposite spin projections, playing the role of anti-pairing. The anti-pairing role in odd nuclei and pairing correlations with the Bardeen-Cooper-Schrieffer description in even nuclei are important to give the odd-even difference in charge radii, the prediction of the proton drip line, and possible abundance of the halo structure for neutron-rich isotopes.

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Authors and Affiliations

  1. Institute of Applied Physics, Chinese Academy of Sciences, 201800, Shanghai, PRC

    W. Z. Jiang, T. T. Wang, Y. L. Zhao & Z. Y. Zhu

  2. Department of Physics, Nanjing University, 210093, Nanjing, PRC

    Z. Z. Ren

  3. Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, 730000, Lanzhou, PRC

    W. Z. Jiang & Z. Y. Zhu

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  1. W. Z. Jiang
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  2. Z. Z. Ren
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  3. T. T. Wang
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  4. Y. L. Zhao
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  5. Z. Y. Zhu
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Correspondence to W. Z. Jiang.

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A. Molinari

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Jiang, W.Z., Ren, Z.Z., Wang, T.T. et al. Relativistic mean-field study for Zn isotopes. Eur. Phys. J. A 25, 29–39 (2005). https://doi.org/10.1140/epja/i2004-10235-1

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  • DOI: https://doi.org/10.1140/epja/i2004-10235-1

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