New spectroscopic classification of lowest autoionizing levels in Cs atoms

Abstract

By comparative analyzing of experimental and calculated data on excitation functions, energies, cross sections and decay rates, the spectroscopic classification for the 4p55d6s, 6s6d, 6s6p lowest autoionizing levels in cesium has been revised. Strong configuration-mixing and relativistic effects which accompany the electron impact excitation of the 5p6 subshell result in the essential different character of the level structure if comparing with other alkali atoms.