Experimental and theoretical studies of the 4s 2 n p 2 P sequence in neutral gallium

Using timeresolved laser spectroscopy lifetime values as well as hyperfine coupling constants have been determined for the 4s²np²P_3/2 (n=7–11) states in⁶⁹Ga and⁷¹Ga. Theoretical calculations of hyperfine structures based on manybody perturbation theory have been performed in the same sequence (n = 4–8) for both finestructure components. The theoretical values are compared with existing experimental data.