Two-Photon Exchange Corrections to the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mn>2</mn><mrow><msub><mrow><mi mathvariant="italic">p</mi></mrow><mrow><mn>1</mn><mi>/</mi><mn>2</mn></mrow></msub></mrow><mi>−</mi><mn>2</mn><mi mathvariant="italic">s</mi></math></span> Transition Energy in Li-Like High- <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi mathvariant="italic">Z</mi></math></span> Ions

V. A. Yerokhin; A. N. Artemyev; V. M. Shabaev; M. M. Sysak; O. M. Zherebtsov; G. Soff

doi:10.1103/PhysRevLett.85.4699

Two-Photon Exchange Corrections to the $2 p_{1 / 2} - 2 s$ Transition Energy in Li-Like High- $Z$ Ions

V. A. Yerokhin, A. N. Artemyev, V. M. Shabaev, M. M. Sysak, O. M. Zherebtsov, and G. Soff

Phys. Rev. Lett. 85, 4699 – Published 27 November 2000

Abstract

A rigorous QED calculation of the two-photon exchange corrections to the ${2 p}_{1 / 2}$ - $2 s$ transition energy in Li-like high- $Z$ ions is presented. The contribution due to an exchange by more than two photons is evaluated within the Breit approximation. The resulting theoretical value of the ${2 p}_{1 / 2}$ - $2 s$ transition energy in Li-like uranium is found to be $280.44 (20)$ eV.

Received 8 June 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.4699

Authors & Affiliations

V. A. Yerokhin^1,2, A. N. Artemyev³, V. M. Shabaev^1,4, M. M. Sysak⁴, O. M. Zherebtsov⁴, and G. Soff⁵

¹Max-Planck-Institut für Physik Komplexer Systeme, Nöthnitzer Strasse 38, D-01187 Dresden, Germany
²Institute for High Performance Computing and Data Bases, Fontanka 118, St. Petersburg 198005, Russia
³Centro de Química Instituto Venezolano de Investigaciones Científicas, IVIC, Apartado 21827, Caracas 1020-A, Venezuela
⁴Department of Physics, St. Petersburg State University, Oulianovskaya 1, Petrodvorets, St. Petersburg 198904, Russia
⁵Institut für Theoretische Physik, TU Dresden, Mommsenstraße 13, D-01062 Dresden, Germany