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The gravitational form factors of the electron in quantum electrodynamics

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Apr 2023Embargo end date: 01 Jan 2022 France, Italy Publisher:Elsevier BVJournal:Physics Letters B, volume 839, page 137,768 (issn: 0370-2693,

Authors: Adam Freese; Andreas Metz; Barbara Pasquini; Simone Rodini;

doi: 10.1016/j.physletb.2023.137768 , 10.48550/arxiv.2212.12197

arXiv: http://arxiv.org/abs/2212.12197

handle: 11571/1476214

The gravitational form factors of the electron in quantum electrodynamics

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Abstract

We calculate the gravitational form factors of the electron at one loop in quantum electrodynamics, decomposing these into contributions from the electron and photon parts of the energy-momentum tensor. Ultraviolet divergences are removed through renormalization in the $\overline{\text{MS}}$ scheme. Infrared divergences are isolated and results are given in both dimensional regularization and photon-mass regularization. The form factors contain information about the electron's energy and angular momentum structure in QED, as well as its mass radius. Whenever possible, we compare our results with the existing literature.

8 pages, 1 figure

Countries

France, Italy

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Keywords

electron, High Energy Physics - Theory, Energy momentum tensor, QC1-999, energy-momentum, FOS: Physical sciences, angular momentum, 530, gravitational form factors, renormalization, Gravitational form factor, QED at one loop, High Energy Physics - Phenomenology (hep-ph), ultraviolet, quantum electrodynamics, structure, Gravitational form factors, form factor, dimensional, [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th], Physics, photon, tensor, regularization, High Energy Physics - Phenomenology, High Energy Physics - Theory (hep-th), energy-momentum tensor, gravitation, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], infrared

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