LX.Elastic scattering of125mevelectrons by mercury

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Abstract
We have calculated the elastic scattering of 125 mev electrons by the nucleus of mercury, assuming various spherically symmetric models for the charge distribution. We find that a square distribution (i.e. ρ=ρ 0, rR) gives rise to a rather large oscillatory differential cross section at wide angles, whereas the cross section from a distribution of radius R=1·2×10-13 A 1/3 cm in which the sharp edge of the square distribution is smoothed reproduces the smooth, monotonically decreasing differential cross section required by the experimental data.

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