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Published on: October 23, 2018
Enhanced subthreshold e+ e- production in short laser pulses
A I Titov1, H Takabe, B Kämpfer
1Institute of Laser Engineering, Yamada-oka, Suita, Osaka 565-0871, Japan.
Physical Review Letters
|September 26, 2012
Abstract:
The emission of e+ e- 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 the case of moderate laser pulse intensities.

