2023
DOI: 10.3390/photonics10080949
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Generation of Narrow Beams of Ultrarelativistic Positrons (Electrons) in the Breit–Wheeler Resonant Process Modified by the Field of a Strong Electromagnetic Wave

Sergei P. Roshchupkin,
Vitalii D. Serov,
Victor V. Dubov

Abstract: The resonant external field-assisted Breit–Wheeler process (Oleinik resonances) for strong electromagnetic fields with intensities that are less than the critical Schwinger field that has been theoretically studied. The resonant kinematics were studied in detail. The case of high-energy initial gamma quanta and emerging ultrarelativistic electron–positron pairs was studied. The resonant differential cross section was obtained. The generation of narrow beams of ultrarelativistic positrons (for Channel A) and el… Show more

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Cited by 4 publications
(5 citation statements)
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“…In the article [43], a general relativistic expression for the resonant BWP modified by a strong electromagnetic field was obtained. The resonance infinity, which occurs in the field of a plane monochromatic wave, was eliminated using the Breit-Wigner procedure [27,29,48].…”
Section: Maximum Breit-wheeler Resonant Cross-sectionmentioning
confidence: 99%
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“…In the article [43], a general relativistic expression for the resonant BWP modified by a strong electromagnetic field was obtained. The resonance infinity, which occurs in the field of a plane monochromatic wave, was eliminated using the Breit-Wigner procedure [27,29,48].…”
Section: Maximum Breit-wheeler Resonant Cross-sectionmentioning
confidence: 99%
“…These resonances were first investigated by Oleinik [18,19]. As a result, higher-order processes by the finestructure constant effectively reduce into several consecutive lower-order processes (see reviews [5,13,14]), as well as recent articles [26][27][28][29]42,43]). It is important to note that the probability of resonant processes can significantly exceed the corresponding probabilities of non-resonant processes.…”
Section: Introductionmentioning
confidence: 99%
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