Relativistic effects in the photoelectron angular distribution of s-states of superheavy elements
Abstract
The influence of relativistic effects on the electronic structure of heavy and superheavy atoms has been discussed. However, the effect of relativity on photoionization dynamics from these elements is seldom studied. The angular distribution of photoelectrons is known to be sensitive to relativistic effects. In the present work, the relativistic-random-phase approximation (RRPA) at different levels of truncation is employed to find the relativistic and correlation effects in the angular distribution of photoionization from ns subshells of superheavy elements up to Z =118. We find that relativistic interactions in the final continuum states are strong enough to engender a substantial of the value of the dipole angular distribution β parameter from its non-relativistic value of 2. Z =118 is a homologue of Rn and a qualitative comparison is made with photoelectron angular distribution of Rn, in which the relativistic effects are smaller relative to Z-118.
Work supported by DOE, Office of Science.- Publication:
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APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- 2020
- Bibcode:
- 2020APS..DMPQ01006J