Elastic Antiproton-Nucleus Scattering from Chiral Forces

Abstract

Elastic scattering of antiprotons off ${}^4$He, ${}^{12}$C, and ${}^{16,18}$O is described for the first time with a totally 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 ($\bar{p}N$) chiral interaction to calculate the $\bar{p}N$ $t$ matrix, while the target densities are computed with the ab initio no-core shell model using chiral interactions as well. Our results are in a good agreement with the existing experimental data and the results computed at different chiral orders of the $\bar{p}N$ interaction display the convergence pattern expected from the theory.

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Cited by in corpus (7)

• Antiproton physics
• Impact of Three-Body Forces on Elastic Nucleon-Nucleus Scattering Observables
• Utility of antiproton-nucleus scattering for probing nuclear surface density distributions
• Microscopic Optical Potentials: recent achievements and future perspectives
• Elastic proton scattering off non-zero spin nuclei
• Microscopic Optical Potential for Elastic Proton-Nucleus Scattering from Chiral Forces
• Light antiproton-nucleus systems at low energies with the ab initio NCSM/RGM method