Breakdown of the tensor component in the Skyrme energy density functional
Breakdown of the tensor component in the Skyrme energy density functional
复制标题
Skyrme 能量密度泛函中张量分量的分解
DOI：
10.1103/physrevc.101.014305
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发表时间：
2020-01
影响因子：
3.1
通讯作者：
Shang X. L.
中科院分区：
文献类型：
--
作者：
Dong J. M.;Shang X. L.
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 ${\mathbit{\ensuremath{\sigma}}}_{1}\ifmmode\cdot\else\textperiodcentered\fi{}{\mathbit{\ensuremath{\sigma}}}_{2}$ 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 ${\mathbit{\ensuremath{\sigma}}}_{1}\ifmmode\cdot\else\textperiodcentered\fi{}{\mathbit{\ensuremath{\sigma}}}_{2}$ interaction turns out to substantially improve the description of shell evolution in Sn isotopes and $N=82$ isotones.
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 ${\mathbit{\ensuremath{\sigma}}}_{1}\ifmmode\cdot\else\textperiodcentered\fi{}{\mathbit{\ensuremath{\sigma}}}_{2}$ 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 ${\mathbit{\ensuremath{\sigma}}}_{1}\ifmmode\cdot\else\textperiodcentered\fi{}{\mathbit{\ensuremath{\sigma}}}_{2}$ interaction turns out to substantially improve the description of shell evolution in Sn isotopes and $N=82$ isotones.
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DOI：
--
发表时间：
2007-06
期刊：
arXiv: Nuclear Theory
影响因子：
--
作者：
T. Lesinski;M. Bender;K. Bennaceur;T. Duguet;Jacques Meyer
通讯作者：
T. Lesinski;M. Bender;K. Bennaceur;T. Duguet;Jacques Meyer
影响因子：
3.1
作者：
J. Dong;U. Lombardo;W. Zuo
通讯作者：
J. Dong;U. Lombardo;W. Zuo
影响因子：
8.6
作者：
T. Otsuka;T. Matsuo;D. Abe
通讯作者：
T. Otsuka;T. Matsuo;D. Abe
影响因子：
8.6
作者：
J. Schiffer;S. Freeman;J. Caggiano;C. Deibel;A. Heinz;C. Jiang;R. Lewis;A. Parikh;P. Parker
通讯作者：
J. Schiffer;S. Freeman;J. Caggiano;C. Deibel;A. Heinz;C. Jiang;R. Lewis;A. Parikh;P. Parker
DOI：
10.1016/0029-5582(58)90346-8
发表时间：
1958
期刊：
Nuclear Physics
影响因子：
--
作者：
T. Skyrme
通讯作者：
T. Skyrme