arXiv:hep-ph/0608236·v1·High Energy Physics — Phenomenology
Study of hyperfine structure in simple atoms and precision tests of the bound state QED
S. G. Karshenboim🇩🇪 · S. I. Eidelman🇩🇪 · P. Fendel🇩🇪 · V. G. Ivanov🇩🇪 · N. N. Kolachevsky🇩🇪 · V. A. Shelyuto🇩🇪 · T. W. Haensch🇩🇪
Abstract
We consider the most accurate tests of bound state QED, precision theory of simple atoms, related to the hyperfine splitting in light hydrogen-like atoms. We discuss the HFS interval of the 1s state in muonium and positronium and of the 2s state in hydrogen, deuterium and helium-3 ion. We summarize their QED theory and pay attention to involved effects of strong interactions. We also consider recent optical measurements of the 2s HFS interval in hydrogen and deuterium.
Comments: presented at The International Workshop "e+e- collisions from phi to psi"