2020/01/07 by J. M. Dong, Xinle Shang, X. L. Shang · 9 citations
Mathematics · Physics and Astronomy · #Atomic and Molecular Physics #Component (thermodynamics) #Energy density #Mathematics #Nuclear physics research studies #Physics #Pure mathematics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Tensor (intrinsic definition) #Theoretical physics #nucl-th
paper · pdf · doi:10.1103/physrevc.101.014305
published in Physical Review C 101(1) (American Institute of Physics) · 6 pages, 1 figure, Phys. Rev. C 101, 014305 (2020)
openalex publication_date 2020/01/07 · arxiv created 2020/01/09 · arxiv updated 2020/01/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The tensor force, as an important component of strong nuclear force, generates a variety of intriguing effects ranging from few-body systems to neutron stars. It is responsible for the nucleon-nucleon correlation beyond mean-field approximation, and is accordingly proved to play no role in the standard Skyrme energy density functionals in the present work. Therefore, the Skyrme original tensor interaction that is extensively employed presently is invalid. As an alternative strategy, we introduced a central interaction, i.e., the \mathbit\ensuremathσ1\ifmmode⋅\else\textperiodcentered\fi\mathbit\ensuremathσ2 term, to improve the description of experimental single-particle structure, and, to address its effect, we established two Skyrme interactions IMP1 and IMP2 complemented by the calibrated charge-violating interactions. The central \mathbit\ensuremathσ1\ifmmode⋅\else\textperiodcentered\fi\mathbit\ensuremathσ2 interaction turns out to substantially improve the description of shell evolution in Sn isotopes and N=82 isotones.