Pair Creation in QED-Strong Pulsed Laser Fields Interacting with Electron Beams
arXiv:1009.0703 · doi:10.1103/PhysRevLett.105.195005
Abstract
QED-effects are known to occur in a strong laser pulse interaction with a counter-propagating electron beam, among these effects being electron-positron pair creation. We discuss the range of laser pulse intensities of J > 5*10^22 W/cm2 combined with electron beam energies of tens of GeV. In this regime multiple pairs may be generated from a single beam electron, some of the newborn particles being capable of further pair production. Radiation back-reaction prevents avalanche development and limits pair creation. The system of integro-differential kinetic equations for electrons, positrons and γ-photons is derived and solved numerically.
25 pages; the short version of this paper is submitted to Phys. Rev. Lett
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