Ultracold Electron Bunch Generation via Plasma Photocathode Emission and Acceleration in a Beam-Driven Plasma Blowout.

B. Hidding, G. Pretzler, J.B. Rosenzweig, T. Königstein, D. Schiller and D.L. Bruhwiler, “Ultracold Electron Bunch Generation via Plasma Photocathode Emission and Acceleration in a Beam-Driven Plasma Blowout,” Phys. Rev. Lett. 108, 035001 (2012).