Year: 2025
Type: article
Abstract: We propose a photon–photon collider based on synchrotron gamma sources driven by relativistic electron beams in hollow plasma channels. The collimated (with a divergence angle of ∼1 mrad) and ultrabrilliant (>1028 photons s−1⋅mrad−2⋅mm−2 per 0.1% bandwidth at 0.6 MeV) photon beams are generated by strong electromagnetic fields induced by current filamentation instability, and up to ∼106 Breit–Wheeler (BW) pairs can be created per shot. Notably, the usage of hollow plasma channels not only enhances synchrotron radiation, but also allows flexible control of the produced photon beams, ensuring the alignment of the two colliding beams and maximizing the two-photon BW process. This setup has the advantage of a clean background by eliminating the yield from the nonlinear BW process, and the signal-to-noise ratio is higher than 102.
Source: Matter and Radiation at Extremes
DOI: 10.1063/5.0278292
Authors: Yi-Nuo Liu, Zhang-Hu Hu, Jie-Jie Lan, Hao-Yuan Li, Wang-Wen Xu, You-Nian Wang
Institution: Dalian University of Technology
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
Awards: G2134915351, G3065564030
OpenAlex ID: W4413686820