Many-body Description of Nuclear Structure and Reactions, Volume 36

amplitude angular momentum antisymmetrized approximation calculations closed shell closed-shell co-ordinates coefficients commutation configurations consider core corresponding coupling defined deformed denotes density matrix diagonal diagrams eigenfunctions eigenstates eigenvalue equation expansion experimental expression external field Fermi level fermion follows given gives graphs Green's function ground-state Hamiltonian Hartree-Fock hole integral intrinsic introduce isospin isotopes lowest matrix elements method multipole n₂ neutrons Nucl nuclear nuclei nucleons number of particles obtained occupation numbers one-body operator orbit orthogonal pairing force parameters parity particle-hole pair perturbation Phys potential properties protons quadrupole quantity quantum number quasi-particle Rendiconti S.I.F. representation residual interaction rotational scattering Sect secular problem self-consistent shell-model single-particle energies Slater determinants solution space spectra spectrum spherical spin symmetric tensor theory transformation transition rates two-body unperturbed vacuum values vector wave functions zero