Microscopic coupled-channel calculations of nucleus-nucleus scattering including chiral three-nucleon-force effects

TL;DR

This study employs microscopic coupled-channels calculations incorporating chiral three-nucleon-force effects to improve the accuracy of nucleus-nucleus scattering predictions, aligning theory more closely with experimental data.

Contribution

It introduces a method that combines coupled-channels calculations with chiral 3NF effects, enhancing the predictive power for nuclear scattering cross sections.

Findings

Coupled-channels and 3NF effects additively influence scattering cross sections.

Including 3NF effects improves agreement with experimental data.

The energy dependence of these effects is analyzed.

Abstract

We analyze $^{16}$O-$^{16}$O and $^{12}$C-$^{12}$C scattering with the microscopic coupled-channels method and investigate the coupled-channels and three-nucleon-force (3NF) effects on elastic and inelastic cross sections. In the microscopic coupled-channels calculation, the Melbourne g-matrix interaction modified according to the chiral 3NF effects is used. It is found that the coupled-channels and 3NF effects additively change both the elastic and inelastic cross sections. As a result, the coupled-channels calculation including the 3NF effects significantly improves the agreement between the theoretical results and the experimental data. The incident-energy dependence of the coupled-channels and 3NF effects is also discussed.