The Proton EDM Experiment

TL;DR

The Proton EDM Experiment aims to directly measure the proton's electric dipole moment with unprecedented sensitivity, potentially revealing new physics, dark matter, and sources of CP violation that could explain fundamental cosmological mysteries.

Contribution

It is the first direct search for a proton EDM, significantly surpassing previous limits and sensitivity, opening new avenues for understanding CP violation and dark matter.

Findings

Projected four orders of magnitude improvement over current limits

Potential to detect axionic dark matter

Enhanced sensitivity to QCD CP-violation

Abstract

The storage ring proton electric dipole moment (pEDM) experiment is the first direct search for a proton EDM. It will improve on the current (indirect) limit by at least four orders of magnitude and surpass the current sensitivity (set by neutron EDM experiments) to QCD CP-violation by at least three orders of magnitude. This makes it an extremely sensitive probe of new physics, with major potential to discover the existence of axionic dark matter (and, therefore, solve the Strong CP problem) and find a new source of CP violation to help explain the universe's matter-antimatter asymmetry.