Work

Nuclear matter symmetry energy and the neutron skin thickness of heavy nuclei

Year: 2005

Type: article

Abstract: Correlations between the thickness of the neutron skin in finite nuclei and the nuclear matter symmetry energy are studied in the Skyrme Hartree-Fock model. From the most recent analysis of the isospin diffusion data in heavy-ion collisions based on an isospin- and momentum-dependent transport model with in-medium nucleon-nucleon cross sections, a value of $L=88\ifmmode\pm\else\textpm\fi{}25$ MeV for the slope of the nuclear symmetry energy at saturation density is extracted, and this imposes stringent constraints on both the parameters in the Skyrme effective interactions and the neutron skin thickness of heavy nuclei. Predicted thickness of the neutron skin is $0.22\ifmmode\pm\else\textpm\fi{}0.04$ fm for $^{208}\mathrm{Pb}$, $0.29\ifmmode\pm\else\textpm\fi{}0.04$ fm for $^{132}\mathrm{Sn}$, and $0.22\ifmmode\pm\else\textpm\fi{}0.04$ fm for $^{124}\mathrm{Sn}$.

Source: Physical Review C

DOI: 10.1103/physrevc.72.064309

Authors: Lie-Wen Chen, Che Ming Ko, Bao-An Li

Institutions: Shanghai Jiao Tong University, Texas A&M University, Arkansas State University

Language: English

Topic: Nuclear physics research studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, National Aeronautics and Space Administration, Welch Foundation, National Natural Science Foundation of China

Awards: G1080796812, RUI: Probing the Equation of State of Dense Neutron-Rich Matter with High Energy Radioactive Beams at Rare Isotope Accelerator (RIA), Theoretical Nuclear Physics, Probing the Isospin Dependence of In-Medium Nuclear Effective Interactions at the Rare Isotope Accelerator