Erlangen 2026 – scientific programme
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P: Fachverband Plasmaphysik
P 24: Laser Plasmas
P 24.4: Talk
Friday, March 20, 2026, 11:45–12:00, KH 01.013
Spin Polarization in Plasma Accelerators — Gudrid Moortgat-Pick1,2, •Maryam Hamidi1, Maxence Thevenet2, and Kristjan Põder2 — 1University of Hamburg — 2Deutsches Elektronen Synchrotron
Plasma based compact accelerators are extremely attractive due to their ultrahigh acceleration gradients. A key property of the electron beam is stable and high spin-polarisation. Spin-polarised beams are substantial for many aspects of fundamental research. However, it is still unclear how a polarised beam behaves in a plasma accelerator. The aim of this project is to study the physics of spin depolarisation in plasma accelerators and to understand the effect of beam parameters on final polarisation. First conceptual ideas for the experimental realization of a spin-polarised plasma accelerator will be discussed. Given a pre-polarised electron source, these spin-aligned electrons must be injected into the plasma accelerator cavity without misaligning the spins to be further accelerated to result in a highly-polarised high-energetic electron beam. A status report of the planned experimental set-up is given and simulations results are discussed.
Keywords: Plasma acceleration; EPACE; spin polarization; Plasma lensing; Particle physics