QED and Fundamental Symmetries in Positronium Decays

Abstract

We discuss positronium decays with emphasis on tests of fundamental symmetries and the constraints from measurements of other precision observables involving electrons and photons.

Comments: 15 pages, to appear in Acta Physica Polonica B, based on a lecture presented at the 3rd Symposium on Positron Emission Tomography, Cracow, September 10-13 2018