Spin-polarised Stokes parameters of open and closed shell transitions and their resonances in zinc atoms

Abstract

The formation and decay processes of negative ion resonances are explored for zinc atoms using spin-polarised incident electrons with observation of visible photons from the resonance decay into the 6s 1S, 4d 1,3D and 4p 1,3P states. For Fano resonances, near singly and doubly excited neutral atom states and two ionic states, the Stokes parameters of the radiation indicate markedly different effects of electron exchange and spin-orbit interactions as well as the angular momentum effects of closed and open 3d10 core states.