Hu H, Müller C, Keitel CH. Complete QED theory of multiphoton Trident pair production in strong laser fields.
PHYSICAL REVIEW LETTERS 2010;
105:080401. [PMID:
20868080 DOI:
10.1103/physrevlett.105.080401]
[Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2010] [Indexed: 05/29/2023]
Abstract
Electron-positron pair creation by multiphoton absorption in the collision of a relativistic electron with a strong laser beam is calculated within laser-dressed quantum electrodynamics. Total production rates, positron spectra, and relative contributions of different reaction channels are obtained in various interaction regimes. We study the process in a manifestly nonperturbative domain which is shown accessible to future experiments utilizing the electron beam lines at novel x-ray laser facilities or all-optical setups based on laser acceleration. Our theory moreover allows us to add further insights into the experimental data from SLAC [D. Burke, Phys. Rev. Lett. 79, 1626 (1997).].
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