Dynamical and relativistic effects in experimental and theoretical studies for inner-shell photoionization of sodium*

High-resolution measurements for inner-shell photoionization of Na ground state over a 40-120 eV photon energy are presented along with the results of a semi-relativistic Breit-Pauli R-matrix calculation. The comparisons show excellent agreement generally, that gives a demonstration that the calculation includes the important relativistic and correlation effects. Relativistic effects are significant primarily in the neighborhood of narrow resonances. The importance of ``balancing'' the correlation included in initial and final state wave functions is emphasized.