Abstract
New data on strong interaction effects in light antiprotonic atoms (N, 16O, 18O, S) are presented. For the first time an isotope effect could be observed in p̄- 16O/ 18O which is used to gain new information about the p̄-n interaction in nuclei. A comparison between all existing p̄-atomic data and an optical model calculation is performed, yielding a set of fit parameters for the potential.
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