Neutron Electric Dipole Moment Workshop 2026

Session

Thu-3

3 Sept 2026, 14:30

Mattli Antoniushaus, Morschach

Conveners

Thu-3

• Ruediger Picker (TRIUMF)

Description

discussion of relevant systematic uncertainties in neutron EDM measurements, ideas for new methods to increase the search sensitivity, ideas for the future

50. Measuring the Neutron-to-Mercury Gyromagnetic Ratio and Investigating nEDM Systematics

Wenting Chen (PSI - Paul Scherrer Institut)

03/09/2026, 14:30

Oral Presentation

on behalf of the nEDM collaboration

Understanding the spin-precession behavior of ultracold neutrons and cohabiting mercury atoms in a magnetic field is essential for the neutron EDM analysis. In this work, we present an improved determination of the neutron-to-mercury gyromagnetic ratio using the n2EDM apparatus at PSI. A global-fit method is applied to investigate gravitational frequency...

33. Energy spectrum effect affecting neutron precession frequency in n2EDM

Morgan Ferry (LPSC)

03/09/2026, 15:10

Oral Presentation

This work is part of the n2EDM experiment located at Paul Scherrer Institut (PSI) in Switzerland. The nEDM measurement principle is based on the use of two precession chambers, one above the other, and separated by a high voltage electrode. Mercury vapour is used as a comagnetometer in order to measure the average magnetic field in the same volume as ultra cold neutrons (UCN). By measuring the...

14. Performance of a new UCN detector developed for the TUCAN EDM Experiment.

TUSHAR TUSHAR (University of Manitoba)

03/09/2026, 15:35

Oral Presentation

The TRIUMF Ultra Cold Advanced Neutron (TUCAN) Collaboration has commissioned a new spallation-driven ultra cold neutron (UCN) source that provides unprecedented UCN density for conducting the next generation of precision nEDM measurements. A UCN Detector System capable of efficient operation at high UCN flux and with low backgrounds will be important for completing this precision...