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Novel soft-photon analysis of $ppγ$ below pion-production threshold

M. K. Liou·R. Timmermans·B. F. Gibson
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Abstract

A novel soft-photon amplitude is proposed to replace the conventional Low soft-photon amplitude for nucleon-nucleon bremsstrahlung. Its derivation is guided by the standard meson-exchange model of the nucleon-nucleon interaction. This new amplitude provides a superior description of $ppγ$ data. The predictions of this new amplitude are in close agreement with potential-model calculations, which implies that, contrary to conclusions drawn by others, off-shell effects are essentially insignificant below pion-production threshold.

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M. K. Liou, R. Timmermans, B. F. Gibson. 1994-01-24. Novel soft-photon analysis of $ppγ$ below pion-production threshold. https://doi.org/10.1016/0370-2693(94)01662-v

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