Systematic trends of neutron skin thickness versus relative neutron excess
J. T. Zhang, X. L. Tu, P. Sarriguren, K. Yue, Q. Zeng, Z. Y. Sun, M., Wang, Y. H. Zhang, X. H. Zhou, and Yu. A. Litvinov
TL;DR
This paper analyzes experimental neutron skin thickness data across various isotopes, revealing systematic trends with neutron excess, and confirms these trends using a deformed Skyrme Hartree-Fock + BCS model.
Contribution
It is the first to observe and quantify the systematic trends of neutron skin thickness versus neutron excess for multiple isotopic chains.
Findings
Experimental data show clear trends of neutron skin thickness with neutron excess.
The deformed Skyrme Hartree-Fock + BCS model with SLy4 reproduces these trends quantitatively.
Different isotopic chains exhibit distinct neutron skin thickness behaviors.
Abstract
Available experimental neutron skin thicknesses of even-even stable Ca, Ni, Sn, Pb, and Cd isotopes are evaluated, and separate trends of neutron skin thickness versus relative neutron excess are firstly observed for different isotopic chains. This phenomenon is quantitatively reproduced by the deformed Skyrme Hartree-Fock BCS model with SLy4 force.
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