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arXiv · 2403.19034

Note on Klein-Nishina effect in strong-field QED: the case of nonlinear Compton scattering

Uwe Hernandez Acosta·Burkhard Kämpfer
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Abstract

Suitably normalized differential probabilities of one-photon emission in external electromagnetic fields are compared to quantify the transit of nonlinear Compton scattering to linear Compton scattering, described by the Klein-Nishina formula, and to constant crossed field treatment. The known Klein-Nishina suppression at large energies is further enforced by increasing field intensity. In view of the Ritus-Narozhny conjecture, we demonstrate that different paths in the field intensity vs. energy plane towards large values of the quantum non-linearity parameter $\chi$ facilitate significantly different asymptotic dependencies, both in the Klein-Nishina regime and the constant crossed field regime and in between.

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Uwe Hernandez Acosta, Burkhard Kämpfer. 2024-03-27. Note on Klein-Nishina effect in strong-field QED: the case of nonlinear Compton scattering. https://arxiv.org/abs/2403.19034

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