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Scaling laws for positron production in laser-electron-beam collisions

Tom Blackburn (Institutionen för fysik, Teoretisk fysik (Chalmers)) ; A. Ilderton ; C. D. Murphy ; Mattias Marklund (Institutionen för fysik, Kondenserade materiens teori (Chalmers))
Physical Review A (2469-9926). Vol. 96 (2017), 2, p. Article no 022128 .
[Artikel, refereegranskad vetenskaplig]

Showers of gamma rays and positrons are produced when a high-energy electron beam collides with a superintense laser pulse. We present scaling laws for the electron-beam energy loss, the gamma-ray spectrum, and the positron yield and energy that are valid in the nonlinear, radiation-reaction-dominated regime. As an application we demonstrate that by employing the collision of a > GeV electron beam with a laser pulse of intensity > 5 x 10(21) Wcm(-2), today's high-intensity laser facilities are capable of producing O(10(4)) positrons per shot via light-by-light scattering.

Nyckelord: Photon-Photon, Generation, Scattering, Pulses

Denna post skapades 2017-09-13. Senast ändrad 2017-11-06.
CPL Pubid: 251865


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