Precision Study of Positronium: Testing Bound State QED Theory

Details Precision Study of Positronium: Testing Bound State QED Theory Precision Study of Positronium: Testing Bound State QED Theory

2003-10-08

arxiv.org/abs/hep-ph/0310099v1

Int.J.Mod.Phys. A19 (2004) 3879-3896

Physics

High Energy Physics

High Energy Physics - Phenomenology

A talk presented at Workshop on Positronium Physics (ETH Zurich, May 30-31, 2003)

Scientific paper

10.1142/S0217751X04020142

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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