Summary
Burnett and Kroll’s extension of Low’s theorem is proved for particles of arbitrary spin.
Riassunto
Si prova l’estensione di Burnett e Kroll del teorema di Low per particelle di spin arbitrario.
Резюме
Для частиц с произвольным спином доказывается расширение Бурнэ и Кролля для теоремы Лоу.
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Literatur
F. E. Low:Phys. Rev.,110, 974 (1958). For a more compact treatment, see:S. L. Adler andY. Dothan:Phys. Rev.,151, 1267 (1966).
T. H. Burnett andN. M. Kroll:Phys. Rev. Lett.,20, 86 (1968).
If one wishes to include some hard photons among the «particles» of the «nonradiative» process, one can use, say, a helicity labelling. In the lowest order of α for the given processR μ should still be nonsingular and the demonstration goes through.
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Bell, J.S., Van Royen, R. On the Low-Burnett-Kroll theorem for soft-photon emission. Nuovo Cimento A (1965-1970) 60, 62–68 (1969). https://doi.org/10.1007/BF02823297
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DOI: https://doi.org/10.1007/BF02823297