The Low soft-photon theorem again

Fadin, V. S.; Khoze, V. A.

Abstract

It is shown that contrary to claims of Lebiedowicz et al. (Phys Rev D 105(1):014022, 2022) the formulated in the proper physical variables Low theorem (Low in Phys Rev 110(4):974–977, 1958) for soft photon emission does not require any modification. We also reject the criticism in Lebiedowicz et al. (2022) of the papers (Burnett and Kroll in Phys. Rev. Lett. 20:86–88,1968; Lipatov in Nucl Phys B 307:705–720, 1988). At the same time, we identify some inaccuracies in Burnett and Kroll (1968) in the presentation of the soft-photon theorem for the case of spin-one-half particles. We also point out shortcomings in consideration of the Low theorem in the classic textbooks (Berestetskii et al. in Quantum electrodynamics. Pergamon Press, Oxford, 1982; Lifshitz and Pitaevsky in Relativistic quantum theory, part 2, Fizmatlit, 2002).

Citation

Fadin, V. S., & Khoze, V. A. (2024). The Low soft-photon theorem again. The European Physical Journal C, 84(3), Article 274. https://doi.org/10.1140/epjc/s10052-024-12634-8

• Journal Article Type: Article
• Acceptance Date: Mar 1, 2024
• Online Publication Date: Mar 15, 2024
• Publication Date: Mar 15, 2024
• Deposit Date: Apr 16, 2024
• Publicly Available Date: Apr 16, 2024
• Journal: The European Physical Journal C
• Print ISSN: 1434-6044
• Publisher: SpringerOpen
• Peer Reviewed: Peer Reviewed
• Volume: 84
• Issue: 3
• Article Number: 274
• DOI: https://doi.org/10.1140/epjc/s10052-024-12634-8
• Public URL: https://durham-repository.worktribe.com/output/2383817