Laser-Plasma Based Seeded Free Electron Laser in the High-Gain RegimeRemoveMarie Labat, Susanne Schöbel, Amin Ghaith, Franziska Marie Herrmann, Maxwell LaBerge, Eléonore Roussel, Ulrich Schramm, Patrick Ufer, Marie-Emmanuelle Couprie, and Arie IrmanPhys. Rev. Lett. 136, 245001 (2026)