Connection between beam polarization and systematical errors in storage ring electric-dipole-moment experiments

TL;DR

Using initial vertical beam polarization in storage ring EDM experiments can cancel spin-dependent systematic errors, offering an alternative or supplementary method despite some practical challenges.

Contribution

The paper analyzes spin dynamics to demonstrate how vertical polarization can reduce systematic errors in EDM measurements, proposing a novel approach for experimental design.

Findings

Vertical polarization cancels spin-dependent systematic errors.

This method provides an alternative to traditional techniques.

Practical difficulties in implementing vertical polarization are discussed.

Abstract

Analysis of spin dynamics in storage ring electric-dipole-moment (EDM) experiments ascertains that the use of initial vertical beam polarization allows to cancel spin-dependent systematical errors imitating the EDM effect. While the use of this polarization meets certain difficulties, it should be considered as an alternative or supplementary possibility of fulfilling the EDM experiment.