Electric Dipole Moment Measurements at Storage Rings

TL;DR

This paper reviews methods and recent activities in measuring electric dipole moments of charged hadrons using storage rings, highlighting technological developments and experimental setups to detect CP-violation beyond the Standard Model.

Contribution

It introduces a new 100-meter prototype storage ring design incorporating advanced techniques like frozen spin and simultaneous beam operation for EDM detection.

Findings

Successful demonstration of electrostatic bending elements

Design of a prototype ring with key EDM measurement technologies

Potential to improve CP-violation sensitivity in future experiments

Abstract

Electric Dipole Moments (EDMs) of subatomic particles, are considered as one of the most powerful tools to study CP-violation beyond the Standard Model. Such CP-violating mechanisms are searched for to explain the dominance of matter over anti-matter in our universe. This paper discusses EDM searches of charged hadrons in storage rings. The document focuses on activities at the existing storage ring COSY at Forschungszentrum J\"ulich, Germany and the design of a 100\,m circumference prototype ring able to demonstrate key technologies and components. These include simultaneous clockwise and counter-clockwise beam operation with electrostatic bending elements and, by adding a magnetic field, the frozen spin technique.