Jp. Elliott et al., SHELL-MODEL MATRIX-ELEMENTS IN A NEUTRON-PROTON QUASI-SPIN FORMALISM FOR SEVERAL SHELLS, Journal of physics. A, mathematical and general, 27(13), 1994, pp. 4465-4471
Previous work in the neutron-proton quasi-spin formalism to express sh
ell-model Hamiltonian matrix elements in terms of a set of reduced mat
rix elements is extended to several interacting shells.