Effects of a realistic tensor force on nuclear quadrupole deformation near the “shore” of the island of inversion

Y. Suzuki (鈴木優香), H. Nakada (中田仁), and S. Miyahara (宮原聡)
Phys. Rev. C 94, 024343 – Published 30 August 2016

Abstract

The M3Y-type semirealistic interaction is applied to deformed nuclei for the first time. Constrained Hartree-Fock calculations assuming axial symmetry are implemented for the N=20 isotones Ne30, Mg32, Si34 and the N=28 isotones Mg40, Si42, S44 with the M3Y-P6 interaction. The results match the experimental data well. Effects of the realistic tensor force on the nuclear quadrupole deformation are investigated in relation to the loss of the N=20 and 28 magic numbers. The tensor force is confirmed to favor the deformation for the N=28 nuclei owing to the closure of the jj shell (i.e., n0f7/2), while favoring the sphericity for the N=20 nuclei owing to the s closure of N=20.

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  • Received 11 April 2016

DOI:https://doi.org/10.1103/PhysRevC.94.024343

©2016 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Y. Suzuki (鈴木優香), H. Nakada (中田仁)*, and S. Miyahara (宮原聡)

  • Department of Physics, Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage, Chiba 263-8522, Japan

  • *nakada@faculty.chiba-u.jp

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Issue

Vol. 94, Iss. 2 — August 2016

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