Abstract
Elastic scattering of antiprotons off He-4, C-12, and O-16,O-18 is described for the first time with a consistent microscopic approach based on the calculation of an optical potential (OP) describing the antiproton-target interaction. The OP is derived using the recent antiproton-nucleon ((p) over barN) chiral interaction to calculate the (p) over barN t matrix, while the target densities are computed with the ab initio no-core shell model using chiral interactions as well. Our results are in good agreement with the existing experimental data and the results computed at different chiral orders of the (p) over barN interaction display a well-defined convergence pattern.