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Understanding nuclear dynamics in the SD-pair shell model: From pre-vibration to collective rotation

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Abstract.

Influences of some important residual interactions considered in the shell model on nuclear dynamics and the shape phase evolution have been investigated in the SD-pair shell model for an identical nucleon system. The results indicate that the collective modes including the spherical vibration, prolate rotation, and X(5)-like critical dynamics are mainly driven by the competition between the monopole-pairing interaction and the quadrupole-quadrupole interaction, and the main features of the U(5)-SU(3) phase transition can be well reproduced within the SD-pair model. In addition, it is also shown that the quadrupole-pairing interaction cannot be ignored in reproducing an ideal rotational spectrum with a realistic single-particle configuration.

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Authors and Affiliations

  1. School of Physics, Nankai University, 300071, Tianjin, P. R. China

    Bing-Cheng He, Si-Yao Zhang & Yan-An Luo

  2. Department of Physics, Liaoning Normal University, 116029, Dalian, P. R. China

    Yu Zhang & F. Pan

  3. Department of Physics and Astronomy, Louisiana State University, 70803-4001, Baton Rouge, LA, USA

    F. Pan & J. P. Draayer

Authors
  1. Bing-Cheng He
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  2. Si-Yao Zhang
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  3. Yu Zhang
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  4. Yan-An Luo
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  5. F. Pan
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  6. J. P. Draayer
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Corresponding author

Correspondence to Yu Zhang.

Additional information

Communicated by M. Caprio

Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: All data generated during this study are contained in this published article.]

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He, BC., Zhang, SY., Zhang, Y. et al. Understanding nuclear dynamics in the SD-pair shell model: From pre-vibration to collective rotation. Eur. Phys. J. A 55, 143 (2019). https://doi.org/10.1140/epja/i2019-12835-x

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