Accurate bulk properties of nuclei from $A = 2$ to $\infty$ from potentials with $\Delta$ isobars

TL;DR

This paper develops and optimizes chiral effective field theory interactions including $$-full $$-isobar effects, achieving accurate predictions of nuclear properties across a wide range of nuclei and nuclear matter.

Contribution

It introduces a new set of $$-full $$-isobar nuclear interactions constrained by scattering data and bound states, improving the accuracy of nuclear property predictions.

Findings

Accurate binding energies and radii for nuclei with $A=16$ to $132$.

Reliable equations of state for nuclear matter.

Agreement with experimental data for selected excited states.

Abstract

We optimize $\Delta$-full nuclear interactions from chiral effective field theory. The low-energy constants of the contact potentials are constrained by two-body scattering phase shifts, and by properties of bound-state of $A=2$ to $4$ nucleon systems and nuclear matter. The pion-nucleon couplings are taken from a Roy-Steiner analysis. The resulting interactions yield accurate binding energies and radii for a range of nuclei from $A=16$ to $A=132$, and provide accurate equations of state for nuclear matter and realistic symmetry energies. Selected excited states are also in agreement with data.