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Creation of Electron-Positron Pairs in Photon-Photon Collisions Driven by 10-PW Laser Pulses.

07:00 EST 11th January 2019 | BioPortfolio

Summary of "Creation of Electron-Positron Pairs in Photon-Photon Collisions Driven by 10-PW Laser Pulses."

A novel approach is proposed to demonstrate the two-photon Breit-Wheeler process by using collimated and wide-bandwidth γ-ray pulses driven by 10-PW lasers. Theoretical calculations suggest that more than 3.2×10^{8} electron-positron pairs with a divergence angle of 7° can be created per shot, and the signal-to-noise ratio is higher than 10^{3}. The positron signal, which is roughly 100 times higher than the detection limit, can be measured by using the existing spectrometers. This approach, which could demonstrate the e^{-}e^{+} pair creation process from two photons, would provide important tests for two-photon physics and other fundamental physical theories.

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This article was published in the following journal.

Name: Physical review letters
ISSN: 1079-7114
Pages: 014802

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