Correlated structure of nuclear symmetry energy from covariant nucleon self-energy

2018/09/11 by Zhi Wei Liu, Qian Zhao, Liu, Zhi Wei +3
Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #nucl-th

paper · pdf · doi:10.48550/arxiv.1809.03837

10 pages, 5 figures, corresponding to the talk given in NuSYM2018

arxiv created 2018/09/11 · arxiv updated 2018/09/12

Abstract

Based on the Hugenholtz-Van Hove theorem, the symmetry energy J and its density slope parameter L are decomposed in terms of the nucleon self-energies within the covariant density functional (CDF) theory. It is found that two structural connections between the different ingredients of J and L construct the fundamental correlation between L and J in the relativistic covariant framework, while the additional contribution from the isovector scalar channel of nucleon-nucleon interaction and those from the second-order symmetry self-energies lead to a deviation, especially the latter limits severely its correlation coefficient and confidence level. In addition, the relationship between the Landau mass M_L^* and the Dirac mass M_D^* is approximated to a reliable linear correlation, which is demonstrate to be sensitive to the momentum dependence of the nucleon self-energies.

Related

• Symmetry energy in nuclear density functional theory
• Universal correlations in the nuclear symmetry energy, slope parameter, and curvature
• Fock contributions to nuclear symmetry energy and its slope parameter based on Lorentz-covariant decomposition of nucleon self-energies
• Isospin coupling-channel decomposition of nuclear symmetry energy in covariant density functional theory
• Constraining the density dependence of symmetry energy using mean field models