Laser polarization of positron beam

TL;DR

This paper proposes a novel method for generating polarized positron beams using multiple Compton backscattering of unpolarized positrons in intense circularly polarized laser fields, addressing current parameter limitations.

Contribution

The work introduces a new approach to produce polarized positron beams, improving upon existing methods by utilizing laser-based multiple Compton backscattering.

Findings

Proposed a laser-based method for positron polarization.

The approach can potentially meet the parameter requirements for future colliders.

Provides a theoretical basis for experimental implementation.

Abstract

For a number of physical studies which are planned to be made with the next generation colliders, it is necessary to use polarized beams of both electrons and positrons. The problem of producing and acceleration of polarized electrons may be considered to be solved, but the existing approaches to create polarized positron beams do not ensure the parameters required. This work proposes a new approach to produce polarized positron beams, which is based on the process of multiple Compton backscattering of unpolarized ultrarelativistic positrons in the field of intense circularly polarized laser wave.