2010/05/18 by Kazuhiro Oyamatsu, Kei Iida, Hiroyuki Koura · 1 voice
Physics and Astronomy · #nucl-th
paper · pdf · doi:10.1103/physrevc.82.027301
published as Phys.Rev.C82:027301,2010 · 4 pages, 4 figures
We investigate how the neutron drip line is related to the density dependence of the symmetry energy, by using a macroscopic nuclear model that allows us to calculate nuclear masses in a way dependent on the equation of state of asymmetric nuclear matter. The neutron drip line obtained from these masses is shown to appreciably shift to a neutron-rich side in a nuclear chart as the density derivative of the symmetry energy increases. Such shift is clearly seen for light nuclei, a feature coming mainly from the surface property of neutron-rich nuclei.