Ab initio optical potentials and nucleon scattering on medium mass nuclei

TL;DR

This paper demonstrates that ab initio optical potentials derived from self-consistent Green's function theory can accurately reproduce low-energy neutron scattering data on medium-mass nuclei like oxygen and calcium, marking a significant advance in predictive nuclear theory.

Contribution

It introduces the first ab initio optical potentials for medium-mass nuclei using SCGF with NNLO_sat, enabling first-principles predictions of neutron scattering.

Findings

Reproduces low-energy scattering observables for oxygen and calcium.

Shows agreement with experimental scattering data.

Validates ab initio approach for medium-mass nuclear reactions.

Abstract

We show the first results for the elastic scattering of neutrons off oxygen and calcium isotopes obtained from ab initio optical potentials. The potential is derived using self consistent Green's function theory (SCGF) with the saturating chiral interaction NNLO$_{\textrm{sat}}$. Our calculations are compared to available scattering data and show that it is possible to reproduce low energy scattering observables in medium mass nuclei from first principles.