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Analytical infrared limit of nonlinear Thomson scattering including radiation reaction

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Di Piazza,  Antonino
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

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1804.01160.pdf
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Di Piazza, A. (2018). Analytical infrared limit of nonlinear Thomson scattering including radiation reaction. Physics Letters B, 782, 559-565. doi:10.1016/j.physletb.2018.05.081.


Cite as: https://hdl.handle.net/21.11116/0000-0001-AFC7-A
Abstract
If an electric charge is accelerated by a sufficiently intense electromagnetic field, the effects of the radiation emitted by the charge on the charge dynamics (radiation reaction) cannot be ignored. Here we show that classical radiation-reaction effects alter qualitatively and quantitatively the infrared behavior of the spectrum of the radiation emitted by an electron in the presence of an intense electromagnetic plane wave (nonlinear Thomson scattering). An exact analytical expression of the infrared limit of nonlinear Thomson scattering is provided, which is valid to all orders within classical electrodynamics and for an arbitrary plane wave. Apart from their own conceptual importance and as a signature of classical radiation reaction, these results provide the limiting expression of the corresponding and yet unknown exact infrared behavior of strong-field QED in an intense plane wave.