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High-energy electron-positron photoproduction cross section close to the end of the spectrum

A. Di Piazza, A. I. Milstein
2010 Physical Review A. Atomic, Molecular, and Optical Physics  

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2010 pre-print arXiv:1006.1242v1 fatcat:a2djmch5pzh3jkhfq2fnvicqsm
We consider the cross section of electron-positron pair production by a high-energy photon in a strong Coulomb field close to the end of electron or positron spectrum. We show that the cross section essentially differs from the result obtained in the Born approximation as well as form the result which takes into account the Coulomb corrections under assumption that both electron and positron are ultrarelativistic. The cross section of bremsstrahlung in a strong Coulomb field by a high-energy
more » ... ctron is also obtained in the region where the final electron is not ultrarelativistic.
doi:10.1103/physreva.82.042106 fatcat:w6jp4glbo5ej5kw57jhtsflgse
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A. Di Piazza, A. I. Milstein. "High-energy electron-positron photoproduction cross section close to the end of the spectrum." Physical Review A. Atomic, Molecular, and Optical Physics 82.4 (2010)