Photoproduction of electron-positron pairs in the presence of hyperacoustic oscillations
نویسنده
چکیده
We report on the recent progress in the investigation of the influence of hyperacoustic vibrations on the coherent electron-positron pair creation by high-energy photons in crystals. In dependence of the values for the parameters, the presence of the deformation field can either enhance or reduce the cross-section. This can be used to control the parameters of the positron sources for storage rings and colliders. PACS Nos.: 41.60.-m, 78.90.+t, 43.35.+d, 12.20.Ds
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تاریخ انتشار 2005