English
Related papers

Related papers: Difficulties in probing density dependent symmetry…

200 papers

The nuclear symmetry energy represents a response to the neutron-proton asymmetry. In this survey we discuss various aspects of symmetry energy in the framework of nuclear density functional theory, considering both non-relativistic and…

Nuclear Theory · Physics 2014-08-07 W. Nazarewicz , P. -G. Reinhard , W. Satula , D. Vretenar

In the framework of an Isospin-dependent Boltzmann-Uehling-Uhlenbeck (IBUU) transport model, for the central $^{197}$Au+$^{197}$Au reaction at an incident beam energy of 400 MeV/nucleon, effect of nuclear symmetry potential at…

Nuclear Theory · Physics 2014-11-21 Gao-Chan Yong

The hyperon dynamics in heavy-ion collisions near threshold energy has been investigated within the quantum molecular dynamics transport model. The isospin and momentum dependent hyperon-nucleon potential and the threshold energy correction…

Nuclear Theory · Physics 2023-10-03 Zhao-Qing Feng

Emissions of free neutrons and protons from the central collisions of 124Sn+124Sn and 112Sn+112Sn reactions are simulated using the Improved Quantum Molecular Dynamics model with two different density dependence of the symmetry energy in…

Nuclear Theory · Physics 2009-11-13 Y. X. Zhang , P. Danielewicz , M. Famiano , Z. Li , W. G. Lynch , M. B. Tsang

The Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model supplemented by potentials for both pre-formed hadrons and confined baryons (called UrQMD/M) are used to describe rapidity distributions of both the E895 proton data at AGS…

High Energy Physics - Phenomenology · Physics 2015-07-23 Qingfeng Li , Yongjia Wang , Xiaobao Wang , Caiwan Shen , Marcus Bleicher

We study the neutron star core-crust transition density $\rho_t$ with the inclusion of the vacuum polarization in the dielectric function in the nonlinear relativistic Hartree approach (RHAn). It is found that the strong correlation between…

Nuclear Theory · Physics 2023-02-17 Niu Li , Wei-Zhou Jiang , Jing Ye , Rong-Yao Yang , Si-Na Wei

We investigated effects of pairing correlations on the neutron skin thickness and the symmetry energy of finite nuclei. In this calculation we used Hartree-Fock-Bogoliubov (HFB) method with Skyrme forces and effective pairing interactions.…

Nuclear Theory · Physics 2017-08-23 Soonchul Choi , Ying Zhang , Myung-Ki Cheoun , Youngshin Kwon , Kyungsik Kim , Hungchong Kim

Elements of nuclear symmetry energy evaluated from different energy density functionals parametrized by fitting selective bulk properties of few representative nuclei are seen to vary widely. Those obtained from experimental data on nuclear…

Nuclear Theory · Physics 2015-08-07 C. Mondal , B. K. Agrawal , J. N. De

The nuclear symmetry energy is intimately connected with nuclear astrophysics. This contribution focuses on the estimation of the symmetry energy from experiment and how it is related to the structure of neutron stars. The most important…

Nuclear Theory · Physics 2014-03-06 James M. Lattimer , Andrew W. Steiner

Four quantities deducible from nuclear structure experiments have been claimed to correlate to the slope parameter $L$ of the symmetry energy; the neutron skin thickness, the cross section of low-energy dipole (LED) mode, dipole…

Nuclear Theory · Physics 2016-01-20 T. Inakura , H. Nakada

Nonuniform neutron-rich matter present in both core-collapse supernovae and neutron-star crusts is described in terms of a semiclassical model that reproduces nuclear-matter properties and includes long-range Coulomb interactions. The…

Astrophysics · Physics 2009-11-10 C. J. Horowitz , M. A. Perez-Garcia , J. Carriere , D. K. Berry , J. Piekarewicz

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

We present the spectral analysis of a one-dimensional Hubbard model with a parabolic potential, using a real-space cluster perturbation theory (rCPT) designed to study spatially inhomogeneous electron systems with strong correlation. It is…

Strongly Correlated Electrons · Physics 2025-07-31 Kaito Matsuki , Chisa Hotta , Kenichi Asano

We study the impact of the nuclear symmetry energy and its density dependence on the {\alpha}-decay process. Within the frame work of the performed cluster model and the energy density formalism, we use different parameterizations of the…

Nuclear Theory · Physics 2018-07-04 W. M. Seif , A. S. Hashem

The accurate characterization of the nuclear symmetry energy and its density dependence is one of the outstanding open problems in nuclear physics. A promising nuclear observable in order to constrain the density dependence of the symmetry…

Nuclear Theory · Physics 2012-02-15 X. Roca-Maza , M. Brenna , M. Centelles , G. Colo' , K. Mizuyama , G. Pozzi , X. Viñas , M. Warda

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

Nucleon-nucleon momentum correlation function have been presented for nuclear reactions with neutron-rich or proton-rich projectiles using a nuclear transport theory, namely Isospin-Dependent Quantum Molecular Dynamics model. The…

The structure and composition of the inner crust of neutron stars, as well as global stellar properties such as radius and moment of inertia, have been shown to correlate with parameters characterizing the symmetry energy of nuclear matter…

Solar and Stellar Astrophysics · Physics 2011-12-12 William G. Newton , Michael Gearheart , Josh Hooker , Bao-An Li

We review recent progress in the determination of the subsaturation density behavior of the nuclear symmetry energy from heavy-ion collisions as well as the theoretical progress in probing the high density behavior of the symmetry energy in…

Nuclear Theory · Physics 2008-12-25 Lie-Wen Chen , Che Ming Ko , Bao-An Li , Gao-Chan Yong

The effect of isospin-dependent nuclear forces on the inner crust of neutron stars is modeled within the framework of Quantum Molecular Dynamics (QMD). To successfully control the density dependence of the symmetry energy of neutron-star…

Nuclear Theory · Physics 2022-07-14 Parit Mehta , Rana Nandi , R. O. Gomes , V. Dexheimer , J. Steinheimer