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Related papers: Symmetry Energy for Nuclei Beyond the Stability Va…

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The determination of nuclear symmetry energy, and in particular, its density dependence, is a long-standing problem for nuclear physics community. Previous studies have found that the product of electric dipole polarizability $\alpha_D$ and…

Nuclear Theory · Physics 2021-06-09 Zhengzheng Li , Yifei Niu , Wenhui Long

The symmetry energy characterizes the isospin dependent part of the equation of state of isospin asymmetric strong interaction matter and it plays a critical role in many issues of nuclear physics and astrophysics. In this talk, we briefly…

Nuclear Theory · Physics 2017-08-16 Lie-Wen Chen

Using the relativistic mean-field theory, we adopt two different methods, namely, the coexisting phase method and the self-consistent Thomas-Fermi approximation, to study the impacts of the nuclear symmetry energy on properties of neutron…

Nuclear Theory · Physics 2015-12-15 Shishao Bao , Hong Shen

The thermal evolution of a few thermodynamic properties of the nuclear surface like its thermodynamic potential energy, entropy and the symmetry free energy are examined for both semi-infinite nuclear matter and finite nuclei. The…

Nuclear Theory · Physics 2015-06-19 B. K. Agrawal , D. Bandyopadhyay , J. N. De , S. K. Samaddar

We analyze the influence of the density dependence of the symmetry energy on the average excitation energy of the isoscalar giant monopole resonance (GMR) in stable and exotic neutron-rich nuclei by applying the relativistic extended…

Nuclear Theory · Physics 2010-05-21 M. Centelles , S. K. Patra , X. Roca-Maza , B. K. Sharma , P. D. Stevenson , X. Vinas

We present an inference of the nuclear symmetry energy magnitude $J$, the slope $L$ and the curvature $K_{\rm sym}$ by combining neutron skin data on Ca, Pb and Sn isotopes and our best theoretical information about pure neutron matter…

Nuclear Theory · Physics 2021-06-30 William G. Newton , Gabriel Crocombe

The parabolic approximation to the equation of state of the isospin asymmetric nuclear matter (ANM) is widely used in the literature to make predictions for the nuclear structure and the neutron star properties. Based on the realistic…

Nuclear Theory · Physics 2014-03-04 W. M. Seif , D. N. Basu

Using the relativistic impulse approximation with the Love-Franey \textsl{NN} scattering amplitude developed by Murdock and Horowitz, we investigate the low-energy (100 MeV$\leq E_{\mathrm{kin}}\leq 400$ MeV) behavior of the nucleon Dirac…

Nuclear Theory · Physics 2009-11-11 Zeng-Hua Li , Lie-Wen Chen , Che Ming Ko , Bao-An Li , Hong-Ru Ma

Out of self-consistent semi-classical calculations performed within the so-called Extended Thomas-Fermi approach for 212 nuclei at all even angular momentum values I ranging between 0 and 80 \hbar and using the Skyrme SkM* effective force,…

Nuclear Theory · Physics 2009-10-31 J. Piperova , D. Samsoen , P. Quentin , K. Bencheikh , J. Bartel , J. Meyer

The rapidity dependence of the single- and double- neutron to proton ratios of nucleon emission from isospin-asymmetric but mass-symmetric reactions Zr+Ru and Ru+Zr at energy range $100 \sim 800$ A MeV and impact parameter range $0\sim 8$…

Nuclear Theory · Physics 2008-11-26 Qingfeng Li , Zhuxia Li , Horst Stoecker

Stability of nuclei beyond the drip lines in the presence of an enveloping gas of nucleons and electrons, as prevailing in the inner crust of a neutron star, is studied in the temperature-dependent Thomas-Fermi framework. A limiting…

Nuclear Theory · Physics 2009-11-07 Tapas Sil , J. N. De , S. K. Samaddar , X. Vinas , M. Centelles , B. K. Agrawal , S. K. Patra

With stochastic transport simulations we study in detail central and peripheral collisions at Fermi energies and suggest new observables, sensitive to the symmetry energy below normal density. As such we identify on one hand the isospin…

Nuclear Theory · Physics 2017-08-23 H. H. Wolter , J. Rizzo , M. Colonna , M. Di Toro , V. Greco , V. Baran , M. Zielinska-Pfabe

The density-dependent nuclear symmetry energy is directly related to the isospin asymmetry for finite and infinite nuclear systems. It is critical to determine the coefficients of symmetry energy and its related observables as it holds…

Nuclear Theory · Physics 2022-08-10 Praveen K. Yadav , Raj Kumar , M. Bhuyan

A finite range density and momentum dependent effective interaction is used to calculate the density and temperature dependence of the symmetry energy coefficient Csym(rho,T) of infinite nuclear matter. This symmetry energy is then used in…

Nuclear Theory · Physics 2008-11-26 S. K. Samaddar , J. N. De , X. Vinas , M. Centelles

The dispersive optical model (DOM) as presently implemented can investigate the isospin (nucleon asymmetry) dependence of the Hartree-Fock-like potential relevant for nucleons near the Fermi energy. Data constraints indicate that a…

Nuclear Theory · Physics 2015-06-16 R. J. Charity , W. H. Dickhoff , L. G. Sobotka , S. J. Waldecker

In this contribution I discuss the nuclear symmetry energy in the regime of hadronic degrees of freedom. The density dependence of the symmetry energy is important from very low densities in supernova explosions, to the structure of…

Nuclear Theory · Physics 2015-06-16 Hermann Wolter

The symmetry energy at sub and supra-saturation densities has a great importance in understanding the exact nature of asymmetric nuclear matter as well as neutron star, but, it is poor known, especially at supra-saturation densities. We…

Nuclear Theory · Physics 2012-03-02 S. Kumar , Y. G. Ma , G. Q. Zhang , C. L. Zhou

We examine how nuclear masses are related to the density dependence of the symmetry energy. Using a macroscopic nuclear model we calculate nuclear masses in a way dependent on the equation of state of asymmetric nuclear matter. We find by…

Nuclear Theory · Physics 2010-05-12 Kazuhiro Oyamatsu , Kei Iida

The phenomenological Skyrme energy density functional theory is one of the most popular theories for dealing with finite nuclei and infinite nuclear matter, including neutron star matter. However, the density dependence of the effective…

Nuclear Theory · Physics 2025-01-06 Mingya Duan , Michael Urban

We investigate the structure of neutron star crusts, including the crust-core boundary, based on new Skyrme mean field models constrained by the bulk-matter equation of state from chiral effective field theory and the ground-state energies…

Nuclear Theory · Physics 2017-07-05 Yeunhwan Lim , Jeremy W. Holt