Signatures for strong-field QED in the quantum limit of beamstrahlung

Abstract

Signatures of strong-field quantum electrodynamics are determined for collisions between round ultrarelativistic leptonic beams in the quantum limit of beamstrahlung. In the low disruption regime, we derive the integrated beamstrahlung photon spectrum that features a characteristic peak close to the beam energy. The conditions to precisely observe this peak experimentally are given regarding the beam parameters. Moreover, the effects of electron-positron pair creation and beam disruption on the photon spectrum are discussed and explored with 3-dimensional particle-in-cell QED simulations. The photon spectrum is associated with the emission of ultrashort and highly collimated gamma-ray beams with a peak spectral brightness exceeding $10^{30}\mathrm{photons}/(\mathrm{s}{\mathrm{mm}}^2{\mathrm{mrad}}^{2}0.1\%\mathrm{BW})$ at $100\mathrm{GeV}$-level photon energies (close to the beam energy).

Published at Physical Review A

References in corpus (15)

• All-optical Compton gamma-ray source
• Advances in QED with intense background fields
• Charged particle motion and radiation in strong electromagnetic fields
• Ultra-high brilliance multi-MeV $\gamma$-ray beam from non-linear Thomson scattering
• Quantum radiation reaction in laser-electron beam collisions
• Nonlinear Breit-Wheeler pair production in a tightly focused laser beam
• Note on the conjectured breakdown of QED perturbation theory in strong fields
• Probing strong-field QED with Doppler-boosted PetaWatt-class lasers
• Testing strong-field QED close to the fully non-perturbative regime using aligned crystals
• Report of the Snowmass 2021 Collider Implementation Task Force
• Strong-Field QED Experiments using the BELLA PW Laser Dual Beamlines
• Non-linear Breit-Wheeler pair production in collisions of bremsstrahlung $\gamma -$quanta and a tightly focussed laser pulse
• Probing strong-field QED in beam-plasma collisions
• Beam Delivery and Beamstrahlung Considerations for Ultra-High Energy Linear Colliders
• Considerations for a TeV Collider Based On Dielectric Laser Accelerators

Cited by in corpus (1)

• Anomalous pinch in electron-electron beam collision