High-luminosity collisions between dense and high-energy beams (100s GeV to a few TeV) planned for future colliders, including utilizing advanced collider concepts through high-gradient plasma-based accelerators, will push beamstrahlung into the quantum regime. The typical beam parameters at the final focus will necessitate the disruption parameter to be (D < 1). However, the bunch length...
Highly polarised, high current electron bunches from compact plasma accelerators are sought after for numerous applications. However, current proposals to generate these beams from plasmas suffer from intrinsic limitations to the reproducibility, charge, beam shape and final polarisation degree. We propose colliding pulse injection as a technique for the generation of highly polarised electron...
