Pair Creation in QED-Strong Pulsed Laser Fields Interacting with Electron Beams

被引:63
|
作者
Sokolov, Igor V. [1 ]
Naumova, Natalia M. [2 ]
Nees, John A. [3 ,4 ]
Mourou, Gerard A. [5 ]
机构
[1] Univ Michigan, Space Phys Res Lab, Ann Arbor, MI 48109 USA
[2] Ecole Polytech, CNRS, Lab Opt Appl, UMR ENSTA 7639, F-91761 Palaiseau, France
[3] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA
[4] Univ Michigan, FOCUS Ctr, Ann Arbor, MI 48109 USA
[5] Ecole Polytech, Inst Lumiere Extreme, UMS ENSTA 3205, CNRS, F-91761 Palaiseau, France
关键词
PLANE ELECTROMAGNETIC WAVE; COMPTON-SCATTERING; QUANTUM PROCESSES; CONSTANT FIELD; PHOTONS; PLASMA; LIGHT;
D O I
10.1103/PhysRevLett.105.195005
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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 x 10(22) W/cm(2) 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 gamma photons is derived and solved numerically.
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页数:4
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