Table 4: The hyperfine structure parameters (in a.u.) and coupling constants (in MHz) of the states for the beryllium atom.

3P 12.029 −0.00898 0.04276 −0.01788 −151.59 −153.61 3P 12.118 −0.00338 0.01610 −0.00686 −151.92 −152.68