“…2, the rms radii R/!na '·0btained after Having established that the rms radius derived from u 1 agrees with R/ 1118 , we now extend , the calculations to unstable nuclei using the effective NN cross sections. Column 4 in 4 He, 6 Li, 9 Be, and 12 C and were found to be equal within 0.04 fm to those obtained using the harmonic oscillator. This situation:can be understood intuitively because both ql and R/; 18 are sensitive to the surface ~region of the nuclear density.…”