2 papers
nucl-th2026
Benchmarking electromagnetic observables in angular-momentum projected Hartree-Fock
Raul Bernal-Gonzalez, Calvin W. Johnson
We benchmark electromagnetic transitions and moments (electric quadrupole and magnetic dipole) in angular-momentum projected-after-variation Hartree-Fock calculations against full…
physics.comp-ph2025
BIGSTICK: A flexible configuration-interaction shell-model code (updated)
Calvin W. Johnson, W. Erich Ormand, Kenneth S. McElvain +2
We present BIGSTICK, a flexible configuration-interaction open-source shell-model code for the many-fermion problem. Written mostly in Fortran 90 with some later extensions, BIGSTI…