The nEDM experiment at the Paul Scherrer Institute

TL;DR

The nEDM experiment at PSI aims to measure the neutron electric dipole moment with unprecedented sensitivity, seeking signs of new physics beyond the standard model by improving existing experimental limits.

Contribution

This paper reports on the current status and future prospects of the nEDM experiment, which aims to significantly enhance sensitivity in neutron EDM measurements.

Findings

Current upper limit on neutron EDM: < 3 x 10^-26 e·cm

Target sensitivity for future measurements: 10^-27 e·cm

Progress towards improved experimental techniques and sensitivity

Abstract

The quest for a non-zero electric dipole moment (EDM) of simple systems such as the electron, the neutron or atoms / molecules is a pow- erful way to search for physics beyond the standard model (SM) in par- ticular for new sources of CP violation, complementary to LHC exper- iments. So far, no EDM signal was observed and the upper limit on the neutron EDM, established by the RAL/Sussex/ILL collaboration, is jdnj < 3 x 10e-26 e cm(90% C.L.). This limits was set with an apparatus using ultra cold neutrons stored in a vessel at room temperature. The nEDM collaboration at the Paul Scherrer Institute in Switzerland aims at reaching a sensitivity in the 10e-27 e cm range soon. I will present the current status of the experiment and discuss the prospects for the future.