Pair creation in collision of γ-ray beams produced with high-intensity lasers.

Ribeyre, X; d'Humières, E; Jansen, O; Jequier, S; Tikhonchuk, V T; Lobet, M · Phys Rev E · 2016

basic_science · Level V

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Record sourced from PubMed, PMID 26871177.
Also identified by DOI 10.1103/PhysRevE.93.013201.
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Abstract

Direct production of electron-positron pairs in two-photon collisions, the Breit-Wheeler process, is one of the basic processes in the universe. However, it has never been directly observed in the laboratory because of the absence of the intense γ-ray sources. Laser-induced synchrotron sources emission may open a way to observe this process. The feasibility of an experimental setup using a MeV photon source is studied in this paper. We compare several γ-ray sources and estimate the expected number of electron-positron pairs and competing processes by using numerical simulations including quantum electrodynamic effects.

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