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arXiv · hep-ph/9804444

Photon splitting above the pair creation threshold in a strong magnetic field

M. V. Chistyakov·A. V. Kuznetsov·N. V. Mikheev
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Abstract

The process of photon splitting $γ\to γγ$ in a strong magnetic field is investigated both below and above the pair creation threshold. Contrary to the statement by Baier et al., the ``allowed'' channel $\alw$ is shown not to be a comprehensive description of splitting in the strong field because the ``forbidden'' channel $\frb$ is also essential. The partial amplitudes and the splitting probabilities are calculated taking account of the photon dispersion and large radiative corrections near the resonance.

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M. V. Chistyakov, A. V. Kuznetsov, N. V. Mikheev. 1998-06-02. Photon splitting above the pair creation threshold in a strong magnetic field. https://doi.org/10.1016/s0370-2693(98)00757-6

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