Spin-Orbit Induced Interchannel Coupling in Atomic Photoionization
Abstract
It has recently been found that interchannel coupling between the photoionization channels arising from 3d_5/2 and 3d_3/2 in Xe produces structure in the 3d_5/2 in the vicinity of the 3d_3/2 threshold [1], and this structure has been observed experimentally [2]. In this work, the generality of this effect is explored. The photoionization of a number of inner-shell p-, d- and f-subshells with substantial spin-orbit splittings is investigated, using the RRPA methodology [3], which includes both spin-orbit splitting and interchannel coupling on an ab initio basis. The results show, among other things, that the effect is much less important for p-subshells for reasons that will be presented. This work was supported by DST, NASA and NSF. [1] M. Ya. Amusia, L. V. Chernysheva, S. T. Manson, A. Msezane and V. Radojevic, Phys. Rev. Lett. 88, 093002 (2002). [2] A. Kivamaki et al, Phys. Rev. A 63, 042708 (2001). [3] W. R Johnson and C. D. Lin, Phys. Rev. A 20, 964 (1979).
- Publication:
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APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- May 2003
- Bibcode:
- 2003APS..DMP.D1106D