Finite Time Effects in Single and Double Compton Scattering

The process of Compton scattering by a free electron with subsequent reemission of one or two photons is considered in the assumption of finite interaction time. The corresponding cross sections are obtained in the framework of relativistic quantum electrodynamics using a modified form of fermion pr...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2023-06, Vol.136 (6), p.683-689
Main Authors: Dubrovich, V. K., Zalialiutdinov, T. A.
Format: Article
Language:English
Subjects:
Atoms
Classical and Quantum Gravitation
Compton effect
Cross-sections
Elastic scattering
Elementary Particles
Fermions
Free electrons
Molecules
Nuclear physics
Optics
Particle and Nuclear Physics
Photons
Physics
Physics and Astronomy
Quantum electrodynamics
Quantum Field Theory
Relativity Theory
Solid State Physics
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Summary:The process of Compton scattering by a free electron with subsequent reemission of one or two photons is considered in the assumption of finite interaction time. The corresponding cross sections are obtained in the framework of relativistic quantum electrodynamics using a modified form of fermion propagator with complex transmitted momentum. It is shown that finite time effects can be observable at sufficiently low energies of scattered photons. The proposed method also regularizes arising infrared divergence in the cross section of the double Compton effect. Possible experimental verification of considered theoretical approach is discussed.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776123060043