Elastic Antiproton-Nucleus Scattering from Chiral Forces

15 Sep 2020  ·  Vorabbi Matteo, Gennari Michael, Finelli Paolo, Giusti Carlotta, Navrátil Petr ·

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.

PDF Abstract
No code implementations yet. Submit your code now

Categories


Nuclear Theory Nuclear Experiment