Neutrino Electromagnetic Properties
Neutrinos are neutral in the Standard Model, but they have tiny charge radii generated by radiative corrections. In theories beyond the Standard Model, neutrinos can also have magnetic and electric moments and small electric charges (millicharges). We review the general theory of neutrino electromagnetic form factors, which reduce, for ultrarelativistic neutrinos and small momentum transfers, to the neutrino charges, effective charge radii, and effective magnetic moments. We discuss the phenomenology of these electromagnetic neutrino properties and review the existing experimental bounds. We also briefly review the electromagnetic processes of astrophysical neutrinos and the neutrino magnetic moment portal in the presence of sterile neutrinos.
Authors
- C. Giunti (ORCID: https://orcid.org/0000-0003-2281-4788)
- Konstantin Kouzakov (ORCID: https://orcid.org/0000-0002-4835-2270)
- Alexander Studenikin (ORCID: https://orcid.org/0000-0003-3310-9072)
- Yufeng Li (ORCID: https://orcid.org/0000-0002-2220-5248)
Institutions
- Chinese Academy of Sciences (CN)
- Lomonosov Moscow State University (RU)
- Istituto Nazionale di Fisica Nucleare, Sezione di Torino (IT)
- Institute of High Energy Physics (AT)
- Institute of High Energy Physics (CN)
- Moscow State University (TJ)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- Annual Review of Nuclear and Particle Science
- Published
- 2025-04-24
- DOI
- https://doi.org/10.1146/annurev-nucl-102122-023242
- Citations
- 14
- Primary Topic
- Neutrino Physics Research
- Type
- article
- Field-Weighted Citation Impact
- 26.18
Funders
- National Natural Science Foundation of China
- Ministero dell’Istruzione, dell’Università e della Ricerca
- Russian Science Foundation