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相关论文: Tensor and tensor-isospin terms in the effective G…

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Recent ground--state--focused studies of the tensor effects in the mean--field framework are our starting point. On the basis of phenomenological arguments, we indicate regions for acceptable values of the parameters that are associated…

核理论 · 物理学 2015-06-17 Marcella Grasso , Marta Anguiano

We calculate the contribution of the nucleon-nucleon tensor interaction to single-particle energies with finite-range $ G $ matrix potentials and with zero-range Skyrme potentials. The Skx Skyrme parameters including the zero-range tensor…

核理论 · 物理学 2008-11-26 B. A. Brown , T. Duguet , T. Otsuka , D. Abe , T. Suzuki

Energy Density Functionals are of major interest for the study of the atomic nucleus as, coupled with mean-field and beyond N-body approaches, they are applicable to the whole nuclear chart, including superheavy elements. On the one hand,…

核理论 · 物理学 2026-01-01 G. Zietek , N. Pillet , M. Anguiano , P. Carpentier , N. Dubray , R. N. Bernard , G. Blanchon , D. Regnier

We present a study of the effects of the tensor-isospin term of the effective interaction in Hartree-Fock and Random Phase Approximation calculations. We used finite-range forces of Gogny type, and we added to them a tensor-isospin term…

核理论 · 物理学 2011-07-04 M. Anguiano , G. Co' , V. De Donno , A. M. Lallena

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…

核理论 · 物理学 2020-01-10 J. M. Dong , X. L. Shang

A new Skyrme functional devised to account well for standard nuclear properties as well as for spin and spin-isospin properties is presented. The main novelty of this work relies on the introduction of tensor terms guided by \textit{ab…

核理论 · 物理学 2019-03-22 Shihang Shen , Gianluca Colò , Xavier Roca-Maza

We systematically study the effect of the J^2 tensor terms in the Skyrme energy functional on properties of spherical nuclei. We build a set of 36 parameterizations covering a wide range of the corresponding parameter space. We analyze the…

核理论 · 物理学 2009-08-03 Thomas Lesinski , Michael Bender , Karim Bennaceur , Thomas Duguet , Jacques Meyer

We perform a detailed analysis of the properties of the finite-range tensor term associated with the Gogny and M3Y effective interactions. In particular, by using a partial wave decomposition of the equation of state of symmetric nuclear…

核理论 · 物理学 2016-06-15 D. Davesne , P. Becker , A. Pastore , J. Navarro

We study the effects of the tensor term of the effective nucleon-nucleon interaction on nuclear excited states. Our investigation has been conducted by using a self-consistent Random Phase Approximation approach. We investigate various…

核理论 · 物理学 2011-02-18 G. Co' , V. De Donno , M. Anguiano , A. M. Lallena

The role of the tensor part of the nuclear interaction is actively investigated in recent years due to experimental advancement yielding new data in nuclei far from the $\beta$-stability line. In this article we study the effect of this…

核理论 · 物理学 2021-06-23 Kai-Wen Kelvin-Lee , Meng-Hock Koh , Ludovic Bonneau

This paper extends previous studies on the impact of tensor forces in fission dynamics of neutron-deficient Thorium isotopes to other isotopic chains of heavy actinides and low-mass super-heavy nuclei. Calculations are carried out within a…

核理论 · 物理学 2024-10-18 R. Rodríguez-Guzmán , L. M. Robledo , R. N. Bernard

We study systematically the impact of the time-even tensor terms of the Skyrme energy density functional, i.e. terms bilinear in the spin-current tensor density, on deformation properties of closed shell nuclei corresponding to 20, 28, 40,…

核理论 · 物理学 2009-12-14 M. Bender , K. Bennaceur , T. Duguet , P. -H. Heenen , T. Lesinski , J. Meyer

We investigate the magicity of the isotopes $^{52}$Ca and $^{54}$Ca, that was recently confirmed by two experimental measurements, and relate it to like--particle and neutron--proton tensor effects within a mean--field description. By…

核理论 · 物理学 2015-06-18 Marcella Grasso

The recent pioneering campaigns conducted by the Lead Radius Experiment (PREX) and the Calcium Radius Experiment (CREX) collaborations have uncovered major deficiencies in the theoretical description of some fundamental properties of atomic…

核理论 · 物理学 2023-12-22 Marc Salinas , Jorge Piekarewicz

We present a quantitative study of the role played by different components characterizing the nucleon-nucleon interaction in the evolution of the nuclear shell structure. It is based on the spin-tensor decomposition of an effective two-body…

核理论 · 物理学 2015-05-18 N. A. Smirnova , B. Bally , K. Heyde , F. Nowacki , K. Sieja

Background: [elided for arXiv character count] Purpose: With the advancement of computational power it is now possible to undertake TDHF calculations without any symmetry assumptions and incorporate the major strides made by the nuclear…

核理论 · 物理学 2016-06-22 P. D. Stevenson , E. B. Suckling , S. Fracasso , M. C. Barton , A. S. Umar

A fully-antisymmetrized random phase approximation calculation employing the continued fraction technique is performed to study nuclear matter response functions with the finite range Gogny force. The most commonly used parameter sets of…

核理论 · 物理学 2016-09-13 A. De Pace , M. Martini

The prediction of single particle level crossing phenomenon between $2p_{3/2}$ and $1f_{5/2}$ orbitals in $Ni$- and $Cu$-isotopic chains by the finite range simple effective interaction without requiring the tensor part is discussed. In…

核理论 · 物理学 2022-08-31 P. Bano , X. Viñas , T. R. Routray , M. Centelles , M. Anguiano , L. M. Robledo

In the present study, we have investigated the impact of the tensor force on fission paths, in particular the symmetric and asymmetric barriers in 230 Th, 226 Th, 222 Th and 216 Th isotopes which display an asymmetric to symmetric fission…

核理论 · 物理学 2020-05-13 Remi Bernard , Nathalie Pillet , Luis Robledo , Marta Anguiano

By assuming that the isospin- and momentum-dependent MDI interaction has a form similar to the Gogny-like effective two-body interaction with a Yukawa finite-range term and the momentum dependence only originates from the finite-range…

核理论 · 物理学 2010-10-19 Jun Xu , Che Ming Ko
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