Hannover 2010 – scientific programme

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A: Fachverband Atomphysik

A 8: Poster I

A 8.54: Poster

Tuesday, March 9, 2010, 16:30–19:00, Lichthof

The relevance of recoil effects in electron-positron pair creation by relativistic particle impact on intense laser fields — •Sarah Müller, Huayu Hu, and Carsten Müller — Max-Planck-Institut für Kernphysik, Heidelberg

Recoil effects in the process of pair creation by a relativistic particle beam colliding with an intense laser wave are studied. Within the framework of laser-dressed quantum electrodynamics, we evaluate to this end the Feynman diagram for multiphoton pair production by muon impact on a high–frequency laser beam of circular polarization. This allows us to calculate the recoil distribution of the projectile and to analyze its dependences on the particle mass and the number of absorbed laser photons. We also discuss the correlation between the emission angles of the produced pair.

[1] S. Müller and C. Müller, Phys. Rev. D 80, 053014 (2009)