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The Low soft-photon theorem again

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

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V. S. Fadin


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).


Fadin, V. S., & Khoze, V. A. (2024). The Low soft-photon theorem again. The European Physical Journal C, 84(3), Article 274.

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
Public URL


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