摘要
The tensor-force effects on the evolution of spin-orbit spittings in neutron drops are investigated within the framework of the relativistic Hartree-Fock theory.For a fair comparison on the pure mean-field level,the results of the relativistic Brueckner-Hartree-Fock calculation with the Bonn A interaction are adopted as meta-data.Through a quantitative analysis,we certify that theπ-pscudovector(π-PV)coupling affects the evolutionary trend through the embedded tensor force.The strength of the tensor force is explored by enlarging the strength fr of theπ-PV coupling.It is found that weakening the density dependence of fn is slightly better than enlarging it with a factor.We thus provide a semiquantitative support for the renormalization persistency of the tensor force within the frame-work of density functional theory.This will serve as important guidance for further development of relativistic effective interactions with particular focus on the tensor force.
作者
王之恒
Tomoya Naito
梁豪兆
龙文辉
Zhiheng Wang;Tomoya Naito;Haozhao Liang;Wen Hui Long(School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000,China;Department of Physics,Graduate School of Science,The University of Tokyo,Tokyo 113-0033,Japan;RIKEN Nishina Center,Wako 351-0198,Japan;Joint Department for Nuclear Physics,Lanzhou University and Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China)
基金
Supported by National Natural Science Foundation of China(11905088,11675065,12075104)
the Strategic Priority Research Program of Chinese Academy of Sciences(XDB34000000)
JSPS Grant-in-Aid for Early-Career Scientists(18K13549)
JSPS Grant-in-Aid for JSPS Fellows(19J20543)
JSPS Grant-in-Aid for Scientific Research(S)(20H05648)。
