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Updated: Jan 22, 2026

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Pair Creation with Strong Laser Fields, Compton Scale X Rays, and Heavy Nuclei
B Hafizi1, D F Gordon1, D Kaganovich1
1Naval Research Laboratory, Washington, D.C. 20375, USA.
Abstract:
Electron-positron pair creation is considered when intense laser pulses collide head-on with <1 MeV x-ray photons in the presence of stationary Coulomb charges Z(-e). The analysis employs Coulomb-corrected Volkov states and is not limited to Born's approximation in Z. The cross section and the yield increase dramatically with increasing Z, potentially enabling (i) measurable yields with petawatt lasers and (ii) sensitive tests of strong-field QED.
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