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arXiv · hep-ph/9709352

Lepton pair production by a high energy photon in a strong electromagnetic field

Dmitri Ivanov·Kirill Melnikov
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Abstract

Using impact-factor representation, we consider the lepton pair production by an incident high-energy photon in a strong electromagnetic field of a nucleus. By summing leading terms of perturbation series, we obtain a simple formula for the amplitude, valid to all orders in ${\cal O}(αZ)$ and arbitrary field of the nucleus. Using these results, we derive, in a simple manner, the results for the lepton pair production by a virtual incident photon in a Coulomb field. For real incident photon our results coincide with the known ones. Also, a particular example of a non-Coulomb potential is discussed in some detail.

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Dmitri Ivanov, Kirill Melnikov. 1997-09-15. Lepton pair production by a high energy photon in a strong electromagnetic field. https://doi.org/10.1103/physrevd.57.4025

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