Experimental Test of Higher-Order QED and a Search for Excited Muon States

25 July 1983

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

Vol. 51 (4) , 257-260
https://doi.org/10.1103/physrevlett.51.257

Abstract

The reactions

e^{+} e^{-} \to μ^{+} μ^{-} γ γ

and

e^{+} e^{-} \to μ^{+} μ^{-} γ

have been studied at

\sqrt{s} = 29

GeV with the MAC detector at the SLAC storage ring PEP. The measured cross sections, charge asymmetry, and invariant-mass distributions are in good agreement with the predictions of QED theory. Limits are derived for the production of excited muon states.

Keywords

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