arXiv:1205.3880·v1·High Energy Physics — Phenomenology
Enhanced subthreshold electron-positron production in short laser pulses
A.I. Titov🇯🇵 · H. Takabe🇯🇵 · B.Kampfer🇩🇪 · A. Hosaka🇯🇵
Abstract
The emission of electron-positron pairs off a probe photon propagating through a polarized short-pulsed electromagnetic (e.g.\ laser) wave field is analyzed. A significant increase of the total cross section of pair production in the subthreshold region is found for decreasing laser pulse duration even in case of moderate laser pulse intensities.
Comments: 4 pages, 2 figures