Correlation structure in nondipole photoionization
M. Ya. AmusiaRacah Institute of Physics, The Hebrew University, Jerusalem 91904, IsraelA. S. BaltenkovCenter for Theoretical Studies of Physical Systems, Clark Atlanta University, Atlanta, Georgia 30314, USAЛ. В. ЧернышеваA. F. Ioffe Physical-Technical Institute, St. Petersburg 194021, RussiaZ. FelfliCenter for Theoretical Studies of Physical Systems, Clark Atlanta University, Atlanta, Georgia 30314, USASteven T. MansonDepartment of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USAA. Z. MsezaneCenter for Theoretical Studies of Physical Systems, Clark Atlanta University, Atlanta, Georgia 30314, USA
2003en
ABI
Annotatsiya
The nondipole parameters that characterize the angular distribution of the photoelectrons from the $3d$ subshell of Cs are found to be altered significantly by the inclusion of correlation in the form of interchannel coupling between the ${3d}_{3/2}$ and ${3d}_{5/2}$ photoionization channels. A prominent characteristic maximum is predicted only in the parameters for ${3d}_{5/2}$ photoionization, while the effect for ${3d}_{3/2}$ is rather weak. The results are obtained within the framework of the generalized random-phase approximation with exchange (GRPAE), which in addition to the RPAE effects takes into account the rearrangement of all atomic electrons due to the creation of a $3d$ vacancy.
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