Resonance of exchange amplitude of Compton effect in the circularly polarized laser field |
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Authors: | A. I. Voroshilo S. P. Roshchupkin O. I. Denisenko |
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Affiliation: | (1) Institute of Applied Physics, National Academy of Sciences of Ukraine, Sumy, 40030, Ukraine |
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Abstract: | We present, for general relativistic case, a theoretical study of resonance of exchange amplitude when a photon is scattered by an electron in the field of a circularly polarized wave. Resonances are related to a virtual intermediate particle that falls within the mass shell. We find conditions when resonances occur in exchange amplitude. We derive the expressions for the resonant amplitudes and the differential cross-sections when the invariant intensity parameter of the laser field is small (η≪1) and the interference of direct and exchange amplitudes is absent. It is demonstrated that the resonant cross-section of scattering may be several orders of magnitude higher than the cross-section of Compton effect in the absence of the external field. |
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Keywords: | 34.50.Rk Laser-modified scattering and reactions 12.20.-m Quantum electrodynamics |
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