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Title: Spin symmetry in the Dirac sea derived from the bare nucleon–nucleon interaction
Authors: Shen, Shihang
Liang, Haozhao
Meng, Jie
Ring, Peter
Zhang, Shuangquan
Author's alias: 申, 时行
梁, 豪兆
孟, 杰
张, 双全
Issue Date: 10-Jun-2018
Publisher: Elsevier BV
Journal title: Physics Letters B
Volume: 781
Start page: 227
End page: 231
Abstract: The spin symmetry in the Dirac sea has been investigated with relativistic Brueckner–Hartree–Fock theory using the bare nucleon–nucleon interaction. Taking the nucleus ¹⁶O as an example and comparing the theoretical results with the data, the definition of the single-particle potential in the Dirac sea is studied in detail. It is found that if the single-particle states in the Dirac sea are treated as occupied states, the ground state properties are in better agreement with experimental data. Moreover, in this case, the spin symmetry in the Dirac sea is better conserved and it is more consistent with the findings using phenomenological relativistic density functionals.
Rights: © 2018 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license ( Funded by SCOAP³.
DOI(Published Version): 10.1016/j.physletb.2018.03.080
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