Dresden 2011 – wissenschaftliches Programm
A 26.26: Poster
Donnerstag, 17. März 2011, 16:00–18:30, P2
Multi-Photon Production and Single-Photon Annihilation of Electron-Positron Pairs — •Huayu Hu, Sven Augustin, Carsten Mueller, and Christoph H. Keitel — Max Planck Institute for Nuclear Physics, Heidelberg
Electron-positron pairs can be produced via a multiphoton trident process in the collision of a relativistic electron beam with an intense laser field available nowadays . We have performed a complete laser-dressed QED calculation of this process, and investigate the transition from the perturbative regime to the quasi-static regime . An all-optical setup is proposed for future experiments on laser-induced pair production.
We have also studied a time-reversed process, namely electron-positron annihilation with single-photon emission where the extra momentum is absorbed by a nearby spectator electron. We discuss the significance of this process in dense plasma environments.
 D. Burke et al., Phys. Rev. Lett. 79, 1626 (1997).
 H. Hu, C. Müller, and C.H. Keitel, Phys. Rev. Lett. 105, 080401 (2010).