"Optical" Spin Rotation Phenomenon and Spin Filtering of Antiproton (Proton, Deuteron) Beams in a Pseudomagnetic Field of a Polarized Target: the Possibility of Measuring the Real Part of the Coherent Zero-angle Scattering Amplitude

TL;DR

This paper proposes a method using optical spin rotation in a pseudomagnetic field to measure the real part of the coherent zero-angle scattering amplitude of antiprotons, enhancing understanding of spin-dependent interactions.

Contribution

It introduces a novel experimental approach to measure the real part of the scattering amplitude during antiproton polarization in a storage ring.

Findings

Feasibility of measuring spin-dependent real scattering amplitudes

Potential to improve understanding of antiproton-proton interactions

Method applicable to polarized beam production

Abstract

It is shown that in the experiments dedicated for producing of polarized beams of antiprotons during their passage through a polarized gas target placed in a storage ring it is possible to measure not only spin-dependent total cross-sections of antiproton scattering by the proton (deuteron), but also the spin-dependent real part of the coherent zero-angle scattering amplitude in the process of production of a polarized beam of antiprotons.