Radiative lifetimes in the B I ${2s}^2\mathrm{ns}{}^{2}S$ $(n<~7)$ and ${2s}^2\mathrm{nd}{}^{2}D$ $(n<~6)$ sequences have been measured employing selective laser excitation at vacuum ultraviolet wavelengths. Theoretical calculations were performed using the multiconfiguration Hartree-Fock method. In particular the effect of configuration interaction with the sequence perturbers ${2s2p}^2{}^{2}S$ and ${}^{2}D$ was studied.

• Received 1 June 2000

DOI:https://doi.org/10.1103/PhysRevA.63.032505