It is shown that with a suitable three- or four-body part in the effective interaction it is possible to reproduce the normal odd-even staggering of nuclear charge radii. A separable four-body force and four- and three-body contact forces have been investigated. Numerical results are given for the Sn, Hg and Pb isotopes. © 1987.
Zawischa, D., Regge, U., & Stapel, R. (1987). Effective interaction and the staggering of nuclear charge radii. Physics Letters B, 185(3–4), 299–303. https://doi.org/10.1016/0370-2693(87)91003-3