Radiative Corrections in Bound States: Recent Results
arXiv:2606.27600
Abstract
Two recent studies of radiative corrections to bound state properties are discussed. The change of the decay rate of a muon bound to a light nucleus has been calculated for several light nuclei with high precision, resolving a long-standing discrepancy between analytical and numerical results for oxygen (). The decay of parapositronium into three photons has been calculated including effects of the boson. The resulting rate is many orders of magnitude smaller than previously estimated.
Contribution to Proceedings of Loops and Legs in Quantum Field Theory (LL2026)