Recoil Effects in Positronium Energy Levels to Order $α^{6}$

Publisher Website

24 November 1997

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 79 (21) , 4120-4123
https://doi.org/10.1103/physrevlett.79.4120

Abstract

Corrections to the positronium energy levels of order

α^{6}

due to photon exchanges are calculated in the effective Hamiltonian approach. The quoted results are valid for all

S

states and arbitrary mass ratios. We further present implications on the comparison of theory and experiment.

Keywords

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