Hamburg 2009 – scientific programme

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A: Fachverband Atomphysik

A 2: Interaction with VUV and X-Ray Light I

A 2.2: Fachvortrag

Monday, March 2, 2009, 11:15–11:45, VMP 6 HS-E

Lepton Pair Production in High-Frequency Laser Fields — •Carsten Müller, Carlus Deneke, and Christoph H. Keitel — Max-Planck-Institut für Kernphysik, Heidelberg

The production of electron-positron and muon-antimuon pairs in high-frequency laser fields via few-photon absorption is considered. It is assumed that an intense xuv or x-ray laser pulse collides head-on with a relativistic ion beam. We study the generation of free e⁺e⁻ pairs, free µ⁺µ⁻ pairs, and bound-free e⁺e⁻ pairs, where in the latter case the electron is born in a low-lying atomic orbit of the projectile nucleus. Effects resulting from the finite nuclear size, the nuclear recoil, excited atomic shells, and the laser’s polarization state are examined.

[1] C. Müller, C. Deneke, and C. H. Keitel, Phys. Rev. Lett. 101, 060402 (2008).

[2] C. Deneke and C. Müller, Phys. Rev. A 78, 033431 (2008).

[3] C. Müller, submitted (arXiv:0811.0976)