ISF 2.03

The difference of rms neutron and proton radii for nickel isotopes calculated in
Skyrme Hartree-Fock using the Skx Skyrme functional with a soft and a stiff asymmetry term in
the equation of state [Bro98]. The origin of the skin effect is the difference of proton and neutron
Fermi energies, illustrated by the red and blue points and lines, respectively. The top of the figure
provides the rates of the various isotopes in particles per second. Sufficient intensity is available for the study of
neutron skins out to N = 58 and a skin size of up to 0.7 fm, as described in the text.2
neutron skins and nuclear binding can also lead to key information, such as the
ratio of the volume to surface symmetry energy [Dan03,Sat06]. In addition, the
neutron-skin thickness in exotic nuclei will provide crucial information about the
isovector properties of nuclear matter and the parameterization of the Skyrme interaction
[Yos06].

References:
[Bro98] B.A. Brown, Phys. Rev. C 58, 220 (1998)
[Dan03] P. Danielewicz, Nucl. Phys. A 727, 233 (2003)
[Sat06] W. Satula et al., Phys. Rev. C 74, 011301R (2006)
[Yos06] S. Yoshida and H. Sagawa, Phys. Rev. C 73, 044320 (2006)