6 papers
Chiral interactions and superfluidity in the calcium isotopic chain
A. Scalesi, A. Ekström, C. Forssén +1
We perform ab initio calculations of three-point mass differences in the odd- and even-mass Ca isotopes to probe nuclear superfluidity via empirical neutron pairing gaps.…
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…
The neutron dripline in calcium isotopes from a chiral interaction
B. S. Hu, A. Ekström, C. Forssén +4
Interactions derived from effective field theories of quantum chromodynamics have thus far failed to bind calcium nuclei beyond neutron number , while nuclear density functio…
The role of spin-isospin symmetries in nuclear -decays
Simone Salvatore Li Muli, Tor R. Djärv, Christian Forssén +1
A century ago, Wigner's SU(4) symmetry was introduced to explain the properties of atomic nuclei. Despite recent revived interest, its impact on nuclear structure, transitions, and…
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…
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…