Dynamical Relativistic Effects in Photoionization: Spin-Orbit-Resolved Angular Distributions of Xenon <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mn>4</mn><mi mathvariant="italic">d</mi></math></span> Photoelectrons near the Cooper Minimum

H. Wang; G. Snell; O. Hemmers; M. M. Sant'Anna; I. Sellin; N. Berrah; D. W. Lindle; P. C. Deshmukh; N. Haque; S. T. Manson

doi:10.1103/PhysRevLett.87.123004

Dynamical Relativistic Effects in Photoionization: Spin-Orbit-Resolved Angular Distributions of Xenon $4 d$ Photoelectrons near the Cooper Minimum

H. Wang, G. Snell, O. Hemmers, M. M. Sant'Anna, I. Sellin, N. Berrah, D. W. Lindle, P. C. Deshmukh, N. Haque, and S. T. Manson

Phys. Rev. Lett. 87, 123004 – Published 4 September 2001

Abstract

Two decades ago, it was predicted [Y. S. Kim et al., Phys. Rev. Lett. 46, 1326 (1981)] that relativistic effects should alter the dynamics of the photoionization process in the vicinity of Cooper minima. The present experimental and theoretical study of the angular distributions of Xe ${4 d}_{3 / 2}$ and ${4 d}_{5 / 2}$ photoelectrons demonstrates this effect for the first time. The results clearly imply that relativistic effects are likely to be important for intermediate- $Z$ atoms at most energies.

Received 29 March 2001

DOI:https://doi.org/10.1103/PhysRevLett.87.123004

Authors & Affiliations

H. Wang^1,2, G. Snell^3,4, O. Hemmers¹, M. M. Sant'Anna⁴, I. Sellin⁵, N. Berrah³, D. W. Lindle¹, P. C. Deshmukh^6,7,8, N. Haque⁹, and S. T. Manson^7,*

¹Department of Chemistry, University of Nevada, Las Vegas, Nevada 89154-4003
²Department of Physics, Uppsala University, Box 530, S-751 21 Uppsala, Sweden
³Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008-5151
⁴Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720
⁵Department of Physics, University of Tennessee, Knoxville, Tennessee 37996
⁶Department of Physics, Indian Institute of Technology-Madras, Chennai 600036, India
⁷Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30030
⁸Center for Theoretical Studies of Physical Systems, Clark-Atlanta University, Atlanta, Georgia 30314
⁹Department of Physics, Morehouse College, Atlanta, Georgia 30314