Pair creation in QED-strong pulsed laser fields interacting with electron beams

I.V. Sokolov 1 Natalia Naumova 2 J.A. Nees 3 G.A. Mourou 4
1 SPRL - Space Physics Research Laboratory [Ann Arbor]
2 LOA - Laboratoire d'optique appliquée
3 CUOS - Center for Ultrafast Optical Sciences
4 ILE - Institut de la Lumiére Extrême
Abstract : QED effects are known to occur in a strong laser pulse interaction with a counterpropagating electron beam, among these effects being electron-positron pair creation. We discuss the range of laser pulse intensities of J>5×1022W/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 backreaction prevents avalanche development and limits pair creation. The system of integro-differential kinetic equations for electrons, positrons and ? photons is derived and solved numerically. © 2010 The American Physical Society.
Keywords : pair creation QED-effects in strong fields radiation back-reaction
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I.V. Sokolov, Natalia Naumova, J.A. Nees, G.A. Mourou. Pair creation in QED-strong pulsed laser fields interacting with electron beams. Physical Review Letters, American Physical Society, 2010, 105 (19), ⟨10.1103/physrevlett.105.195005⟩. ⟨hal-00838482⟩

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