Relativistic photoionization of H isoelectronic series including plasma shielding effects
Abstract
With plasma shielding effects of the Debye-H\"uckel model, we investigate the relativistic photoionization processes of H, Nb and Pb plasmas in the H-isoelectronic series. The shielded nuclear potential of Yukawa-type experienced by the electron is parameterized by Debye-length . To account for relativistic effects non- perturbatively, we solve the Dirac equation for the bound as well as continuum wavefunctions. Contributions from multipole fields are calculated for high incident photon energies, while the angular distribution and spin polarization parameters of photoelectrons are provided in the electric-dipole approximation. Our results of photoionization cross sections for the H plasma agree with other available theoretical calculations. The interplay between the relativistic and plasma shielding effects on the photoionization parameters is also studied. \keywords{Photoionization, Multipole effect, Debye plasma, Hydrogen atom, Hydrogen-like ions
Keywords
Cite
@article{arxiv.1805.05992,
title = {Relativistic photoionization of H isoelectronic series including plasma shielding effects},
author = {Xugen Zheng and Hsin-Chang Chi and Shin-Ted Lin and Gang Jiang and Chenkai Qiao and Keh-Ning Huang},
journal= {arXiv preprint arXiv:1805.05992},
year = {2020}
}
Comments
11 pages, 11 figures; V2: corrections for author information; V3: major revision; V4: published version