Angular-momentum transfer due to postcollision interaction in atomic inner n s2 -shell photoionization
Abstract
A concrete mechanism of angular-momentum transfer in photoionization process is proposed for electron photoemission from deep inner atomic shells. It is demonstrated that the leading contribution to angular-momentum transfer is provided by postcollision interaction of the photoelectrons and Auger electrons. The standard theoretical approach to postcollision interaction has been considerably improved by taking into account angular-momentum transfer. The theory developed is applied to the photoionization of 1 s2 shell in Ar. Calculations show the noticeable influence of angular-momentum transfer on the photoelectron angular distribution.
- Publication:
-
Physical Review A
- Pub Date:
- June 2017
- DOI:
- 10.1103/PhysRevA.95.063425
- Bibcode:
- 2017PhRvA..95f3425G