Photoproduction of electron-positron pairs in the presence of hyperacoustic oscillations

TL;DR

This paper explores how hyperacoustic vibrations affect electron-positron pair creation in crystals, showing that such vibrations can modulate the process, which could be useful for optimizing positron sources in accelerators.

Contribution

It introduces the concept of using hyperacoustic oscillations to control pair creation rates in crystal-based processes, a novel approach for particle source optimization.

Findings

Hyperacoustic vibrations can both enhance and suppress pair creation cross-sections.

The deformation field's parameters determine the degree of influence on pair production.

Potential applications in improving positron source control for accelerators.

Abstract

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.