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arXiv · 1406.6263

Nonperturbative Bethe-Heitler pair creation in combined high- and low-frequency laser fields

Sven Augustin·Carsten Müller
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Abstract

The nonperturbative regime of electron-positron pair creation by a relativistic proton beam colliding with a highly intense bichromatic laser field is studied. The laser wave is composed of a strong low-frequency and a weak high-frequency mode, with mutually orthogonal polarization vectors. We show that the presence of the high-frequency field component can strongly enhance the pair-creation rate. Besides, a characteristic influence of the high-frequency mode on the angular and energy distributions of the created particles is demonstrated, both in the nuclear rest frame and the laboratory frame.

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Sven Augustin, Carsten Müller. 2014-09-08. Nonperturbative Bethe-Heitler pair creation in combined high- and low-frequency laser fields. https://doi.org/10.1016/j.physletb.2014.08.042

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