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We present our current studies and our future plans on microscopic potential based on effective nucleon-nucleon interaction and many-body theory. This framework treats in an unified way nuclear structure and reaction. It offers the…

核理论 · 物理学 2016-01-27 G. Blanchon , M. Dupuis , H. F. Arellano

We investigate the structure of admixed neutron stars with a regular hadronic component and a fraction of fermionic self-interacting dark matter. Using two limiting equations of state for the dense baryonic interior, constructed from…

We analyse the properties of the Gogny interaction in homogeneous matter, with special emphasis on the isovector sector. We provide analytical expressions for both the single-particle and the bulk properties of symmetric and asymmetric…

核理论 · 物理学 2014-11-21 R. Sellahewa , A. Rios

The constrained Hartree-Fock-Bogoliubov approximation, based on the recent parametrization D1M$^{*}$ of the Gogny energy density functional, is used to describe fission in 435 superheavy nuclei. The Gogny-D1M$^{*}$ parametrization is…

核理论 · 物理学 2020-04-15 R. Rodríguez-Guzmán , Y. M. Humadi , L. M. Robledo

The sensitivity of nuclear symmetry energy elements at the saturation density to the binding energies of ultra neutron-rich nuclei (neutron to proton ratio $\sim$ 2) and the maximum mass of neutron star is explored within a relativistic…

核理论 · 物理学 2016-06-03 C. Mondal , B. K. Agrawal , J. N. De , S. K. Samaddar

A Skyrme-type effective potential is determined to describe the interaction between $\Lambda$ hyperons in nuclear medium. Experimental data of the binding energies of the double-$\Lambda$ ($\Lambda\Lambda$) nuclei with mass numbers…

核理论 · 物理学 2023-09-06 Soonchul Choi , Emiko Hiyama , Chang Ho Hyun , Myung-Ki Cheoun

[Background] Symmetry restoration and configuration mixing in the spirit of the generator coordinate method based on energy density functionals have become widely used techniques in low-energy nuclear structure physics. Recently, it has…

核理论 · 物理学 2012-11-27 K. Washiyama , K. Bennaceur , B. Avez , M. Bender , P. -H. Heenen , V. Hellemans

The conclusions of the study published as Eur. Phys. J. A (2019) 55:150 questioning the adequacy of the recently proposed Gogny D1M* interaction for finite-nuclei calculations using harmonic oscillator (HO) basis are revised. The existence…

核理论 · 物理学 2020-07-13 C. Gonzalez-Boquera , M. Centelles , X. Viñas L. M. Robledo

The transition density $\rho_{t}$ and pressure $P_{t}$ at the inner edge separating the liquid core from the solid crust of neutron stars are systematically studied using a modified Gogny (MDI) and 47 popular Skyrme interactions within well…

太阳与恒星天体物理 · 物理学 2010-01-15 Jun Xu , Lie-Wen Chen , Bao-An Li , Hong-Ru Ma

The possibility of ferromagnetic and antiferromagnetic phase transitions in symmetric nuclear matter is analyzed within the framework of a Fermi liquid theory with the effective Gogny interaction. It is shown that at some critical density…

核理论 · 物理学 2009-11-10 A. A. Isayev , J. Yang

The mass-dependent symmetry energy coefficients $a_{sym}(A)$ has been extracted by analysing the heavy nuclear mass differences reducing the uncertainties as far as possible in our previous work. Taking advantage of the obtained symmetry…

核理论 · 物理学 2015-05-08 Xiaohua Fan , Jianmin Dong , Wei Zuo

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

Based on relativistic mean field (RMF) models, we study finite $\Lambda$-hypernuclei and massive neutron stars. The effective $N$-$N$ interactions PK1 and TM1 are adopted, while the $N$-$\Lambda$ interactions are constrained by reproducing…

核理论 · 物理学 2018-03-14 Ting-Ting Sun , Cheng-Jun Xia , Shi-Sheng Zhang , M. S. Smith

Many common Skyrme functionals present ferromagnetic instabilities or unrealistic density dependence of the spin-dependent Landau parameters. To solve these problems, we consider the Skyrme interaction as a density-functional rather than a…

核理论 · 物理学 2025-11-04 Mingya Duan , Michael Urban

Properties of dense nucleon matter and the structure of neutron stars are studied using variational chain summation methods and the new Argonne v18 two-nucleon interaction. The neutron star gravitational mass limit obtained with this…

核理论 · 物理学 2008-11-26 A. Akmal , V. R. Pandharipande , D. G. Ravenhall

Available Skyrme parametrizations with hyperons are examined from the point of view of their suitability for applications to neutron stars. It is shown that the hyperons can attenuate or even remove the problem of ferromagnetic instability…

核理论 · 物理学 2009-11-10 L. Mornas

We present new equations of state for applications in core-collapse supernova and neutron star merger simulations. We start by introducing an effective mass parametrization that is fit to recent microscopic calculations up to twice…

核理论 · 物理学 2021-02-15 S. Huth , C. Wellenhofer , A. Schwenk

A unified description of finite nuclei and equation of state of neutron stars present a major challenge as well as opportunities for understandings of nuclear interactions.Inspired by the Lee-Huang-Yang formula of hard-sphere gases, we…

核理论 · 物理学 2021-07-07 C. J. Jiang , Y. Qiang , D. W. Guan , Q. Z. Chai , C. Y. Qiao , J. C. Pei

We propose an extension of the Standard Model (SM) for radiative neutrino mass by introducing a dark $U(1)_D$ gauge symmetry. The kinetic mixing between the SM gauges and the dark $U(1)_D$ gauge arises at 1-loop mediated by new inert scalar…

高能物理 - 唯象学 · 物理学 2021-04-20 Arnab Dasgupta , Sin Kyu Kang , Myeonghun Park

Within the minimum model of neutron stars (NS) consisting of neutrons, protons and electrons, a new approach is proposed for inferring the symmetry energy of super-dense neutron-rich nucleonic matter above twice the saturation density…

核理论 · 物理学 2020-06-01 Bao-An Li , Wen-Jie Xie