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相关论文: Tensor-force effects on shell-structure evolution …

200 篇论文

In this work we study the effect of the nuclear tensor force on properties related with deformation. We focus on isotopes in the Mg, Si, S, Ar, Sr and Zr chains within the Hartree-Fock-Bogoliubov theory using the D1ST2a Gogny interaction.…

核理论 · 物理学 2016-05-18 Rémi N. Bernard , Marta Anguiano

Shell evolution is studied in the neutron-rich silicon isotopes 36,38,40 Si using neutron single-particle strengths deduced from one-neutron knockout reactions. Configurations involving neutron excita- tions across the N = 20 and N = 28…

Density dependent relativistic Hartree-Fock theory has been extended to describe properties of exotic nuclei. The effects of Fock exchange terms and of pi - and rho - meson contributions are discussed. These effects are found to be more…

核理论 · 物理学 2009-10-31 B. Q. Chen , Z. Y. Ma , F. Gruemmer , S. Krewald

Recently, we developed a mean-field-type framework which treats the correlation induced by the tensor force. To exploit the tensor correlation we introduce single-particle states with the parity and charge mixing. To make a total wave…

核理论 · 物理学 2008-11-26 Satoru Sugimoto , Kiyomi Ikeda , Hiroshi Toki

We address consequences of strong tensor and weak spin-orbit terms in the local energy density functional, resulting from fits to the $f_{5/2} - f_{7/2}$ splittings in $^{40}$Ca, $^{48}$Ca, and $^{56}$Ni. In this study, we focus on nuclear…

核理论 · 物理学 2010-01-06 M. Zalewski , W. Satula , J. Dobaczewski , P. Olbratowski , M. Rafalski , T. R. Werner , R. A. Wyss

Within the relativistic Brueckner-Hartree-Fock theory in the full Dirac space, the tensor-force effects on infinite nuclear matter are elucidated by subtracting the matrix elements of tensor forces from the realistic nucleon-nucleon…

核理论 · 物理学 2024-06-04 Sibo Wang , Hui Tong , Chencan Wang , Qiang Zhao , Peter Ring , Jie Meng

The effect of tensor force on the density dependence of nuclear symmetry energy has been investigated within the framework of the Brueckner-Hartree-Fock approach. It is shown that the tensor force manifests its effect via the tensor…

核理论 · 物理学 2014-04-08 Pei Wang , Wei Zuo

The spin-dependent nature of the nuclear tensor force is studied in details within the relativistic Hartree-Fock approach. The relativistic formalism for the tensor force is supplemented with an additional Lorentz-invariant tensor formalism…

核理论 · 物理学 2017-12-19 Yao Yao Zong , Bao Yuan Sun

With the relativistic representation of the nuclear tensor force that is included automatically by the Fock diagrams, we explored the self-consistent tensor effects on the properties of nuclear matter system. The analysis were performed…

核理论 · 物理学 2015-01-20 Li Juan Jiang , Shen Yang , Jian Min Dong , Wen Hui Long

We present the evolution of the shell structure of nuclei in Hartree-Fock calculations using Skyrme's density-dependent effective nucleon-nucleon interaction. The role of the tensor part of the Skyrme interaction to the Hartree-Fock…

核理论 · 物理学 2008-11-26 D. M. Brink , Fl. Stancu

Quantum shell effects drive many aspects of many-body quantal systems and their interactions. Among these are the quasifission reactions that impede the formation of a compound nucleus in superheavy element (SHE) searches. Fragment…

核理论 · 物理学 2022-09-14 Liang Li , Lu Guo , K. Godbey , A. S. Umar

Shape evolution of Zr nuclei are investigated by the axial Hartree-Fock (HF) calculations using the semi-realistic interaction M3Y-P6, with focusing on roles of the tensor force. Deformation at $N\approx 40$ is reproduced, which has not…

核理论 · 物理学 2019-01-30 S. Miyahara , H. Nakada

In the framework of a Skyrme-Hartree-Fock approach combined with BCS method, the role of the tensor force on the pseudospin energy splitting for tin isotope chain is investigated. The tensor force turns out to obviously affect the…

核理论 · 物理学 2011-11-03 J. M. Dong , W. Zuo , J. Z. Gu , Y. Z. Wang , L. G. Cao , X. Z. Zhang

Melting of N=20 shell and development of N = 16 and N = 34 shells for neutron-rich nuclei have been studied extensively through inclusion of tensor interaction in Skyrme Hartree Fock theory optimized to reproduce the splitting neutron 1f…

核理论 · 物理学 2015-06-17 Rupayan Bhattacharya

Much interest has been devoted to the shape evolution of neutron-rich Si isotopes recently both experimentally and theoretically. We provide our study of $^{28-42}$Si by Skyrme-Hartree-Fock model with BCS approximation for the pairing…

太阳与恒星天体物理 · 物理学 2013-05-14 A. Li , X. R. Zhou , H. Sagawa

We point out that the pseudo-spin symmetry (PSS) of nuclei significantly depends on the proton ($Z$) and neutron numbers ($N$), sometimes giving rise to the characteristic structures. By using the non-relativistic spherical Hartree-Fock…

核理论 · 物理学 2024-11-11 H. Nakada , T. Inakura

The role of tensor force on the collision dynamics of $^{16}$O+$^{16}$O is investigated in the framework of a fully three-dimensional time-dependent Hartree-Fock theory. The calculations are performed with modern Skyrme energy functional…

核理论 · 物理学 2014-10-22 Gao-Feng Dai , Lu Guo , En-Guang Zhao , Shan-Gui Zhou

The contribution of the tensor interaction in Hartree-Fock calculations for closed shell nuclei is studied. The investigation is done neglecting the spin-orbit component of the force. As expected from nuclear matter estimates we find that…

核理论 · 物理学 2022-03-02 Giampaolo Co' , Antonio M. Lallena

Shell evolution in exotic nuclei is investigated with large-scale shell-model calculations. After presenting that the central and tensor forces produce distinctive ways of shell evolution, we show several recent results: (i) evolution of…

Novel simple properties of the monopole component of the effective nucleon-nucleon interaction are presented, leading to the so-called monopole-based universal interaction. Shell structures are shown to change as functions of $N$ and $Z$…