harmonic oscillator basis. While the curves deviate a little in between 6.0 and 8.0 fm, at the very surface they are similar, but a small discrepancy, reflecting the differences in the neutron skin can be seen.

In Fig. \[ronpcomp1\] we display again the difference between neutron and proton densities within both numerical calculations of the TW and NL3 models. These two Thomas-Fermi calculations should have given more similar results. However the nucleation method predicts a very small surface energy for the NL3 parametrization, and therefore, a large radius. This may be related to the choice of the boundary conditions and a deeper comparison between the two methods will be pursued.

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   ![Difference between neutron and proton densities obtained with the Thomas-Fermi approach solved in a harmonic oscillator basis for the models discussed in the present work.[]{data-label="ronp1"}](fig2.eps "fig:"){width="8.cm"}  
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   ![Difference between neutron and proton densities obtained with the Thomas-Fermi approach solved with both numerical prescriptions for the TW model.[]{data-label="ronpcomp1"}](fig3.eps "fig:"){width="8.cm"}  
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Next we present our results for the asymmetry given by eq. (\[ass\]) as a function of the transfered momentum. We begin with Fig.\[asym0\] which displays the results for the HS parametrization of the Walecka model. 