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Peer-reviewedCC BY 4.0The European Physical Journal C

A supersymmetric extension of axionic electrodynamics: from axions and photons to axinos and photinos

  • C. Roldán-Domínguez1
  • H. Belich1
  • W. Spalenza2,3
  • A. L. M. A. Nogueira4
  • M. Reetz2
  • J. A. Helayël-Neto2
4 affiliations
  1. 1Universidade Federal do Espírito Santo
  2. 2Centro Brasileiro de Pesquisas Físicas
  3. 3Instituto Federal do Espírito Santo
  4. 4Centro Federal de Educação Tecnológica C. S. da Fonseca
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Abstract

In this contribution, we investigate a supersymmetric effective extension of Axionic Electrodynamics by adopting the superspace/superfield approach. Rather than focusing on UV-complete axion models, our goal is to analyze how supersymmetry modifies the dynamical and propagating sectors of axion electrodynamics at the effective-field-theory level. In terms of component fields, the resulting Lagrangian describes the interactions among the axion, the photon, and their respective supersymmetric partners, the axino, the saxion and the photino. Supersymmetry induces new fermionic self-interactions and a non-polynomial interaction involving the axino, the photino, and the saxion. An interesting aspect to be highlighted is the appearance of fermionic bilinear contributions involving the photino to both the permittivity and permeability tensors of the constitutive relations. We also pay special attention to the dispersion relations in both the bosonic and fermionic sectors, and analyze the effective masses of the different particles in the presence of an external magnetic background, which induces supersymmetry breaking. Finally, with the help of numerical methods, we identify a class of axionic and electromagnetic-field configurations with interesting profiles of the magnetic field.

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Cite

BibTeXRIS
BibTeX
@article{roldandominguez2026supersymmetric,
  title = {{A supersymmetric extension of axionic electrodynamics: from axions and photons to axinos and photinos}},
  author = {C. Roldán-Domínguez and H. Belich and W. Spalenza and A. L. M. A. Nogueira and M. Reetz and J. A. Helayël-Neto},
  journal = {The European Physical Journal C},
  year = {2026},
  month = oct,
  doi = {10.1140/epjc/s10052-026-16468-4},
  url = {https://link.springer.com/article/10.1140/epjc/s10052-026-16468-4},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - A supersymmetric extension of axionic electrodynamics: from axions and photons to axinos and photinos
AU  - C. Roldán-Domínguez
AU  - H. Belich
AU  - W. Spalenza
AU  - A. L. M. A. Nogueira
AU  - M. Reetz
AU  - J. A. Helayël-Neto
PY  - 2026
DA  - 2026/10/22
JO  - The European Physical Journal C
DO  - 10.1140/epjc/s10052-026-16468-4
UR  - https://link.springer.com/article/10.1140/epjc/s10052-026-16468-4
AB  - In this contribution, we investigate a supersymmetric effective extension of Axionic Electrodynamics by adopting the superspace/superfield approach. Rather than focusing on UV-complete axion models, our goal is to analyze how supersymmetry modifies the dynamical and propagating sectors of axion electrodynamics at the effective-field-theory level. In terms of component fields, the resulting Lagrangian describes the interactions among the axion, the photon, and their respective supersymmetric partners, the axino, the saxion and the photino. Supersymmetry induces new fermionic self-interactions and a non-polynomial interaction involving the axino, the photino, and the saxion. An interesting aspect to be highlighted is the appearance of fermionic bilinear contributions involving the photino to both the permittivity and permeability tensors of the constitutive relations. We also pay special attention to the dispersion relations in both the bosonic and fermionic sectors, and analyze the effective masses of the different particles in the presence of an external magnetic background, which induces supersymmetry breaking. Finally, with the help of numerical methods, we identify a class of axionic and electromagnetic-field configurations with interesting profiles of the magnetic field.
SN  - 1434-6044
SN  - 1434-6052
ER  -