PRECISION STUDY OF POSITRONIUM: TESTING BOUND STATE QED THEORY

Open Access

20 September 2004

journal article
Published by World Scientific Pub Co Pte Ltd in International Journal of Modern Physics A

Vol. 19 (23) , 3879-3896
https://doi.org/10.1142/s0217751x04020142

Abstract

As an unstable light pure leptonic system, positronium is a very specific probe atom to test bound state QED. In contrast to ordinary QED for free leptons, the bound state QED theory is not so well understood and bound state approaches deserve highly accurate tests. We present a brief overview of precision studies of positronium paying special attention to uncertainties of theory as well as comparison of theory and experiment. We also consider in detail advantages and disadvantages of positronium tests compared to other QED experiments.

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