Signatures for strong-field QED physics in the quantum limit of beamstrahlung
Abstract
Collisions between round ultrarelativistic leptonic beams are proposed to probe strong-field quantum electrodynamics (SF-QED) in the quantum limit of beamstrahlung. The collective radiation spectrum from a leptonic collision is derived. A characteristic spectral peak close to the beam energy is identified, as a signature predicted by SF-QED theory. The dependences of the spectral peak and beamstrahlung on the collision parameters are determined, paving the way to experimentally verify SF-QED. Ultrashort, ultrabright, and high-luminosity colliding gamma-ray beams are generated. The theoretical results are confirmed by self-consistent 3-dimensional QED particle-in-cell simulations.
- Publication:
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arXiv e-prints
- Pub Date:
- February 2023
- DOI:
- 10.48550/arXiv.2302.01321
- arXiv:
- arXiv:2302.01321
- Bibcode:
- 2023arXiv230201321Z
- Keywords:
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- Physics - Plasma Physics;
- High Energy Physics - Experiment;
- High Energy Physics - Theory;
- Physics - Accelerator Physics;
- Physics - Instrumentation and Detectors
- E-Print:
- With a Supplemental Material