K2 (4S-7S) ; 1,3Sg,u+

C6 C8 C10 Ref.
3.9195[5] 1.0217[9] 2.8799[12] M. Marinescu and A. F. Starace, Phys. Rev. A 56, 4321 (1997)
3.7(0.2)[5] n/a n/a H. Wang, X. T. Wang, P. L. Gould, and W. C. Stwalley, Phys. Rev. Lett. 78, 4173 (1997)