Darmstadt 2008 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 12: Posters: Interaction with intense laser pulses

A 12.4: Poster

Dienstag, 11. März 2008, 16:30–18:30, Poster C3

Bound-free pair production in relativistic laser-ion collisions — •Carlus Deneke, Carsten Müller, and Christoph H. Keitel — Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg

The process of electron-positron pair creation with capture of the electron into a bound state is considered in the relativistic collision of a nucleus with an intense x-ray laser beam. The production proceeds nonlinearly via few-photon absorption from the laser wave. The process probability is calculated within the strong-field approximation, and its dependence on the ion charge and energy as well as the laser intensity, frequency and polarization is studied.