https://doi.org/10.1140/epjp/s13360-025-06731-0
Regular Article
Gyromagnetic ratio and Pauli form factor in anisotropic 
at one-loop
1
Department of Physics, Indian Institute of Technology Bombay, 400076, Mumbai, India
2
Institute for Theoretical Physics III, University of Stuttgart, 70550, Stuttgart, Germany
Received:
20
April
2025
Accepted:
4
August
2025
Published online:
16
September
2025
The gyromagnetic ratio and Pauli form factor are important quantities that characterize the electric and magnetic moment distribution of a particle. The experimentally measured value for the gyromagnetic ratio or the spin g-factor of an electron in a vacuum agrees remarkably well with theoretical predictions, making it one of the biggest successes of quantum field theory. However, these factors may get modified compared to their vacuum counterparts due to the interaction present in the system. Motivating from that, in this article, we investigate the effects of interactions within the framework of 
dimensional Proca quantum electrodynamics. We demonstrate how the g-factor and Pauli form factors change with the electron’s Fermi velocity and the mass of the vector fields within Proca quantum electrodynamics.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
