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Title: Neutron-skin thickness of finite nuclei in relativistic mean-field models with chiral limits

Abstract

We study several structure properties of finite nuclei using relativistic mean-field Lagrangians constructed according to the Brown-Rho scaling due to the chiral symmetry restoration at high densities. The models are consistent with current experimental constraints for the equations of state of symmetric matter at both normal and supranormal densities and of asymmetric matter at subsaturation densities. It is shown that these models can successfully describe the binding energies and charge radii of finite nuclei. Compared to calculations with usual relativistic mean-field models, these models give a reduced thickness of neutron skin in {sup 208}Pb between 0.17 fm and 0.21 fm. The reduction of the predicted neutron skin thickness is found to be due to not only the softening of the symmetry energy but also the scaling property of {rho} meson required by the partial restoration of chiral symmetry.

Authors:
 [1];  [1];  [1]
  1. Department of Physics, Texas A and M University-Commerce, Commerce, Texas 75429 (United States)
Publication Date:
OSTI Identifier:
21067895
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 76; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevC.76.054314; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ASYMMETRY; BINDING ENERGY; CHIRAL SYMMETRY; CHIRALITY; DENSITY; EQUATIONS OF STATE; LAGRANGIAN FUNCTION; LEAD 208; MEAN-FIELD THEORY; NEUTRONS; NUCLEAR MATTER; NUCLEAR RADII; NUCLEAR STRUCTURE; RELATIVISTIC RANGE; RHO-770 MESONS; THICKNESS

Citation Formats

Weizhou, Jiang, Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, Baoan, Li, Liewen, Chen, and Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240. Neutron-skin thickness of finite nuclei in relativistic mean-field models with chiral limits. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.76.054314.
Weizhou, Jiang, Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, Baoan, Li, Liewen, Chen, & Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240. Neutron-skin thickness of finite nuclei in relativistic mean-field models with chiral limits. United States. https://doi.org/10.1103/PHYSREVC.76.054314
Weizhou, Jiang, Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, Baoan, Li, Liewen, Chen, and Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240. Thu . "Neutron-skin thickness of finite nuclei in relativistic mean-field models with chiral limits". United States. https://doi.org/10.1103/PHYSREVC.76.054314.
@article{osti_21067895,
title = {Neutron-skin thickness of finite nuclei in relativistic mean-field models with chiral limits},
author = {Weizhou, Jiang and Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800 and Baoan, Li and Liewen, Chen and Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240},
abstractNote = {We study several structure properties of finite nuclei using relativistic mean-field Lagrangians constructed according to the Brown-Rho scaling due to the chiral symmetry restoration at high densities. The models are consistent with current experimental constraints for the equations of state of symmetric matter at both normal and supranormal densities and of asymmetric matter at subsaturation densities. It is shown that these models can successfully describe the binding energies and charge radii of finite nuclei. Compared to calculations with usual relativistic mean-field models, these models give a reduced thickness of neutron skin in {sup 208}Pb between 0.17 fm and 0.21 fm. The reduction of the predicted neutron skin thickness is found to be due to not only the softening of the symmetry energy but also the scaling property of {rho} meson required by the partial restoration of chiral symmetry.},
doi = {10.1103/PHYSREVC.76.054314},
url = {https://www.osti.gov/biblio/21067895}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 5,
volume = 76,
place = {United States},
year = {2007},
month = {11}
}