Elastic scattering of antiprotons off He4, C12, and O16,18 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. 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.
Elastic Antiproton-Nucleus Scattering from Chiral Forces / Vorabbi M.; Gennari M.; Finelli P.; Giusti C.; Navratil P.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - ELETTRONICO. - 124:16(2020), pp. 162501.1-162501.6. [10.1103/PhysRevLett.124.162501]
Elastic Antiproton-Nucleus Scattering from Chiral Forces
Finelli P.Membro del Collaboration Group
;
2020
Abstract
Elastic scattering of antiprotons off He4, C12, and O16,18 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. 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.| File | Dimensione | Formato | |
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