title: Angular distributions of s-subshell electrons in open-shell atoms: 3s photoionization of atomic chlorine
abstract: A determination of the angular distribution parameter beta of the atomic chlorine 3s photoelectrons over the photon-energy range from 29 to 70 eV has been carried out using electron spectrometry in conjunction with synchrotron radiation. Our results confirm the basic theoretical predictions that beta, for s-subshell photoionization in open-shell atoms, is in general term and photon-energy dependent, in contrast to closed-shell atoms where beta is always 2 nonrelativistically. However, our measurements of beta for the Cl+ 3s((1,3)P) channels demonstrate that significant details are not handled well by simple Hartree-Fock theory.
authors.affiliation: Department of Physics and Astronomy, University of Wisconsin-Eau Claire, Eau Claire, Wisconsin 54702, USA.
authors.initials: SB
authors.lastname: Whitfield
authors.initials: K
authors.lastname: Kehoe
authors.initials: MO
authors.lastname: Krause
authors.initials: CD
authors.lastname: Caldwell