Abstract
Total-ion-yield measurements and Hartree-Fock calculations are presented for the , photoexcitations in atomic oxygen. Energies and relative intensities of the and series members are determined, and the apparent linewidths are measured. It is shown that natural widths in an open-shell atom can be deduced from an absorption spectrum only with the aid of theoretical input. The linewidth for the six individual components contained in the transition is determined to be 140(9) meV.
- Received 8 March 1996
DOI:https://doi.org/10.1103/PhysRevA.54.R991
©1996 American Physical Society