Abstract

The elastic scattering differential cross-section ratios of 36S/ 32S, 34S/ 32S and 26Mg/ 24Mg have been measured with 48.4 MeV and 43.9 MeV negative pions, respectively, using magnetic spectrometers. The data are analysed with optical potential calculations, using a Fourier-Bessel description for the neutron density of the heavier isotope. Neutron density and rms radius differences between the isotopes are determined and compared to shell-model calculations, and show reasonable agreement.

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