Abstract

Quantum-electrodynamic cascade generation is numerically simulated for the case of the oblique collision of a beam of ultrarelativistic electrons with the field of two counterpropagating, focused, circularly polarised laser pulses. It is shown that although the ‘collapse and revival’ effect is observed at any value of the collision angle, the multiplicity of the cascade essentially depends on this angle and is maximal in the configuration, when the electron beam hits the focus perpendicularly to the optical axis of the laser pulses.

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