K2 (4S-5D) ; 1,3Pg,u

C5 C6 Ref.
5.7433[3] 3.5620[5] M. Marinescu and A. F. Starace, Phys. Rev. A 56, 4321 (1997)
n/a 3.3(0.3)[5] H. Wang, X. T. Wang, P. L. Gould, and W. C. Stwalley, Phys. Rev. Lett. 78, 4173 (1997)