On the theory of coherent pair production in crystals in presence of acoustic waves

Details On the theory of coherent pair production in crystals in presence of acoustic waves On the theory of coherent pair production in crystals in presence of acoustic waves

2002-08-30

arxiv.org/abs/hep-th/0208223v1

Mod.Phys.Lett. A17 (2002) 2571-2580

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, 3 EPS figures

Scientific paper

10.1142/S0217732302008228

The influence of hypersonic waves excited in a single crystal is investigated on the process of electron-positron pair creation by high-energy photons. The coherent part of the corresponding differential cross-section is derived as a function of the amplitude and wave number of the hypersound. The values of the parameters are specified for which the latter affects remarkably on the pair creation cross-section. It is shown that under certain conditions the presence of hypersonic waves can result in enhancement of the process cross-section.

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