Relativistic photoeffect for s states in a central field Evgenii Drukarev, Alexander Mikhailov, Khamdam Yu. Rakhimov and Hammid Yusupov Eur. Phys. J. D, 74 8 (2020) 166 Published online: 04 August 2020 DOI: 10.1140/epjd/e2020-10264-7