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Applying the semi-realistic $NN$ interactions that include realistic tensor force to the Hartree-Fock calculations, we investigate tensor-force effects on the single-particle levels in the Ca isotopes. The semi-realistic interaction…

Nuclear Theory · Physics 2013-06-27 H. Nakada , K. Sugiura , J. Margueron

The possible existence of a "bubble" structure in the proton density of $^{34}$Si has recently attracted a lot of research interest. To examine the existence of the "bubble" structure in low-lying states, we establish a relativistic version…

Nuclear Theory · Physics 2013-06-07 J. M. Yao , H. Mei , Z. P. Li

The occurrence of the proton bubble-like structure has been studied within the relativistic Hartree-Fock-Bogoliubov (RHFB) and relativistic Hartree-Bogoliubov (RHB) theories by exploring the bulk properties, the charge density profiles and…

Nuclear Theory · Physics 2015-04-21 Jun Ling Song , Qiang Zhao , Wen Hui Long

We investigate the possibility that some nuclei show density distributions with a depletion in the center, a semi-bubble structure, by using a Hartree-Fock plus Bardeen-Cooper-Schrieffer approach. We separately study the proton, neutron and…

Nuclear Theory · Physics 2018-03-21 G. Co' , M. Anguiano , V. De Donno , A. M. Lallena

A systematic study of the effect of tensor force on the evolution of shell structure in even-even super-heavy nuclei in the region of proton numbers Z=114, 120 and 126 and in the region of neutron numbers 178 $\le$ N $\le$ 188 is presented.…

Nuclear Theory · Physics 2022-02-11 M. El Adri , M. Oulne

The possibility that an unconventional depletion in the center of the charge density distribution of certain nuclei occurs due to a purely quantum mechanical effect has attracted theoretical and experimental attention in recent years. We…

Nuclear Theory · Physics 2017-04-06 T. Duguet , V. Somà , S. Lecluse , C. Barbieri , P. Navrátil

Many properties of the atomic nucleus, such as vibrations, rotations and incompressibility, can be interpreted as due to a two component quantum liquid of protons and neutrons. Electron scattering measurements on stable nuclei demonstrate…

The proton fraction in ${\sl \beta}$-stable neutron stars is investigated within the framework of the Skyrme-Hartree-Fock theory using the extended Skyrme effective interaction for the first time. The calculated results show that the proton…

Nuclear Theory · Physics 2009-11-06 Feng-Shou Zhang , Lie-Wen Chen

We study the effect of tensor correlations on single-particle and collective states within Skyrme Hartree-Fock and RPA model. Firstly, We study the role of tensor interactions in Skyrme effective interaction on the spin-orbit splittings of…

Nuclear Theory · Physics 2009-10-29 H. Sagawa

The 0$^+_2$ state in $^{34}$Si has been populated at the {\sc Ganil/Lise3} facility through the $\beta$-decay of a newly discovered 1$^+$ isomer in $^{34}$Al of 26(1) ms half-life. The simultaneous detection of $e^+e^-$ pairs allowed the…

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…

Solar and Stellar Astrophysics · Physics 2013-05-14 A. Li , X. R. Zhou , H. Sagawa

The applicability of the Hartree-Fock and random phase approximations to models of strongly correlated electrons is discussed. The 2D Hubbard model is analyzed. An antiferromagnetic phase (at half filling) and Fermi liquid behavior (at low…

Condensed Matter · Physics 2007-05-23 F. Guinea , E. Louis , J. A. Verges

The magic nature of the $^{54}$Ca nucleus is investigated in the light of the recent experimental results. We employ both HFB and HF+BCS methods using Skyrme-type SLy5, SLy5+T and T44 interactions. The evolution of the single-particle…

Nuclear Theory · Physics 2014-07-01 E. Yüksel , N. Van Giai , E. Khan , K. Bozkurt

Proton radioactivity is an important and common process of the natural radioactivity of proton-rich nuclei. In our previous work [J. H. Cheng et al., Nucl. Rhys. A 997, 121717 (2020)], we systematically studied the proton radioactivity…

Nuclear Theory · Physics 2020-10-27 Jun-Hao Cheng , Xiao Pan , You-Tian Zou , Xiao-Hua Li , Zhen Zhang , Peng-Cheng Chu

The excitation function of proton elastic scattering from $^{10}$Be at keV energy is calculated using the self-consistent Skyrme Hartree-Fock in the continuum method. The calculation successfully reproduces the narrow near-threshold…

Nuclear Theory · Physics 2026-02-16 Le-Anh Nguyen , Minh-Loc Bui , Naftali Auerbach , Vladimir Zelevinsky

We study the formation of a quasi-condensate in a nearly one dimensional, weakly interacting trapped atomic Bose gas. We show that a Hartree Fock (mean-field) approach fails to explain the presence of the quasi-condensate in the center of…

Restoration of pseudo-spin symmetry (PSS) along the $N=32$ and $34$ isotonic chains and the physics behind are studied by applying the relativistic Hartree-Fock theory with effective Lagrangian PKA1. Taking the proton pseudo-spin partners…

Nuclear Theory · Physics 2019-09-04 Zheng Zheng Li , Shi Yao Chang , Qiang Zhao , Wen Hui Long , Yi Fei Niu

On the basis of the Hartree-Fock-Bogoliubov (HFB) plus quasiparticle random phase approximation method (QRPA) based on the Green's function approach with Skyrme force, we discuss the anomalous E2 properties of the first 2+ states in…

Nuclear Theory · Physics 2017-08-23 Masayuki Yamagami , Nguyen Van Giai

Recent self-consistent mean-field calculations predict a substantial depletion of the proton density in the interior of 34Si. In the present study, we investigate how correlations beyond the mean field modify this finding. The framework of…

Nuclear Theory · Physics 2012-07-16 Jiang-Ming Yao , Simone Baroni , Michael Bender , Paul-Henri Heenen

In this work, we systematically study the two-proton($2p$) radioactivity half-lives using the two-potential approach while the nuclear potential is obtained by using Skyrme-Hartree-Fock approach with the Skyrme effective interaction of…

Nuclear Theory · Physics 2021-12-22 Xiao Pan , You Tian Zou , Hong Ming Liu , Biao He , Xiao Hua Li , Xi Jun Wu , Zhen Zhang
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