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Effects of deformation, pairing and tensor correlation on the evolution of bubble structure within the Skyrme-Hartree-Fock method

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Abstract.

We study the effects of deformation, tensor and pairing correlation on the evolution of bubble structure in 46Ar, 22O and Cl isotopes using a deformed Skyrme-Hartree-Fock model with BCS and Lipkin-Nogami number projection approximation. The parameter SLy5 of the Skyrme energy functionals is adopted together with various kinds of density-dependent pairing interaction and various kinds of tensor interaction. In the spherical case, considering pairing correlation (IS + IV) or switch off pairing, there is a clear bubble structure in 46Ar with interaction SLy5 + Tw, respectively. For 46Ar, we find that deformation weakens the bubble structure strongly, and pairing correlation also weakens the bubble in 46Ar and 22O , respectively. On the other hand, the SLy5 + Tw + IS + IV interaction evolves the bubble structure of neutron-rich Cl isotopes 43-47Cl in deformed cases because the occupation probability of states \( 2s_{1/2}\) decreases from 1 to 0.5.

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Authors and Affiliations

  1. Department of Physics, East China Normal University, 200241, Shanghai, China

    Zhao-Jun Luo, Kun Yu & Xian-Rong Zhou

  2. Department of Physics and Institute of Theoretical Physics and Astrophysics, Xiamen University, 361005, Xiamen, China

    Kun Yu & Xian-Rong Zhou

  3. School of Physics and Optoelectronic Engineering, Xidian University, 710071, Xi’an, China

    Ji-Wei Cui

  4. RIKEN, Nishina Center, 351-0198, Wako, Japan

    Hiroyuki Sagawa

  5. Center for Mathematics and Physics, University of Aizu, Aizu-Wakamatsu, 965-8580, Fukushima, Japan

    Hiroyuki Sagawa

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  1. Zhao-Jun Luo
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  2. Kun Yu
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  3. Xian-Rong Zhou
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  4. Ji-Wei Cui
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Correspondence to Xian-Rong Zhou.

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Communicated by M. Bender

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Luo, ZJ., Yu, K., Zhou, XR. et al. Effects of deformation, pairing and tensor correlation on the evolution of bubble structure within the Skyrme-Hartree-Fock method. Eur. Phys. J. A 54, 193 (2018). https://doi.org/10.1140/epja/i2018-12620-5

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  • DOI: https://doi.org/10.1140/epja/i2018-12620-5

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