Abstract
Abstract The neutron skin thickness of asymmetric semi-infinite nuclear matter (δRM) is shown to be a function of the Coulomb energy (Vc), the asymmetry energy coefficient (J), the slope (L) of the asymmetry energy, and the incompressibility coefficient (K), in addition to the Fermi momentum (kF) and the asymmetry parameter (I = (N − Z)/A). The relational formula is derived on the basis of the Hugenholtz–Van Hove theorem in the mean-field (MF) approximation for nuclear matter. Using the formula as a guide, the neutron skin thickness (δR) in 208Pb is examined in the MF models. The apparently spurious linear correlation between L and δR appears through the model-dependent correlation of L with J that is included in the main components of the formula.
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