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DOE OSTI · 1616438

Elastic Antiproton-Nucleus Scattering from Chiral Forces

Vorabbi, Matteo·Gennari, Michael·Finelli, Paolo·Giusti, Carlotta·Navrátil, Petr
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Abstract

Elastic scattering of antiprotons off He 4 , C 12 , and O 16 , 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 ¯ N ) chiral interaction to calculate the p ¯ N t matrix, while the target densities are computed with the ab initio no-core shell model using chiral interactions as well. Here, our results are in good agreement with the existing experimental data and the results computed at different chiral orders of the p ¯ N interaction display a well-defined convergence pattern.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSChiral perturbation theoryNuclear PhysicsNuclear reactions

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Vorabbi, Matteo, Gennari, Michael, Finelli, Paolo, Giusti, Carlotta, Navrátil, Petr. 2020-04-20. Elastic Antiproton-Nucleus Scattering from Chiral Forces. https://doi.org/10.1103/physrevlett.124.162501

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