3 papers
nucl-th2026
Perturbative calculations of light nuclei up to NLO in chiral effective field theory
Oliver Thim, Andreas Ekström, Christian Forssén
We predict ground-state energies of H, He, and Li in chiral effective field theory up to next-to-next-to-next-to-leading-order (NLO) using a power counting guided b…
nucl-th2025
Perturbative EFT calculations of the deuteron and triton up to NLO
Oliver Thim, Andreas Ekström, Christian Forssén
We extend previous studies of the deuteron and triton ground-state energies to next-to-next-to-leading order (NLO) in chiral effective field theory, employing a power counting…
nucl-th2025
Entanglement and accidental symmetries in the nucleon-nucleon system
Alma L. Cavallin, Oliver Thim, Christian Forssén
We study the connection between accidental symmetries in the nuclear interaction and spin entanglement in two-nucleon scattering. Specifically, we incorporate different levels of W…