| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8190318 | Physics Letters B | 2012 | 5 Pages |
Abstract
The e+eâ pair production by a probe photon traversing a linearly polarized laser pulse is treated as generalized nonlinear Breit-Wheeler process. For short laser pulses with very few oscillations of the electromagnetic field we find below the perturbative weak-field threshold s=2m a similar enhancement of the pair production rate as for circular polarization. The strong enhancement below the weak-field threshold is traced back to the finite bandwidth of the laser pulse. A folding model is developed which accounts for the interplay of the frequency spectrum and the intensity distribution in the course of the pulse.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
T. Nousch, D. Seipt, B. Kämpfer, A.I. Titov,