https://doi.org/10.1140/epjc/s10052-023-11535-6
Regular Article - Theoretical Physics
One-loop electron mass and QED trace anomaly
Department of Physics and Astronomy, University of Kentucky, 40506, Lexington, KY, USA
Received:
3
March
2023
Accepted:
18
April
2023
Published online:
3
May
2023
Electron mass is considered as a matrix element of the energy–momentum trace in the rest frame. The one-loop diagrams for this matrix element are different from the textbook diagrams for the electron mass renormalization. We clarify connection between the two sets of diagrams and explain analytically and diagrammatically why the results of both calculations coincide.
© The Author(s) 2023
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