2103.09039.pdf (4.26 MB)
Mapping of the magnetic field to correct systematic effects in a neutron electric dipole moment experiment
journal contribution
posted on 2023-06-10, 05:17 authored by C Abel, N J Ayres, G Ban, G Bison, K Bodek, V Bondar, E Chanel, PJ Chiu, B Clément, CB Crawford, M Daum, S Emmenegger, L Ferraris-Bouchez, M Fertl, Clark GriffithClark Griffith, Philip Harris, othersExperiments dedicated to the measurement of the electric dipole moment of the neutron require outstanding control of the magnetic-field uniformity. The neutron electric dipole moment (nEDM) experiment at the Paul Scherrer Institute uses a Hg199 co-magnetometer to precisely monitor temporal magnetic-field variations. This co-magnetometer, in the presence of field nonuniformity, is, however, responsible for the largest systematic effect of this measurement. To evaluate and correct that effect, offline measurements of the field nonuniformity were performed during mapping campaigns in 2013, 2014, and 2017. We present the results of these campaigns, and the improvement the correction of this effect brings to the neutron electric dipole moment measurement.
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Publication status
- Published
File Version
- Accepted version
Journal
Physical Review AISSN
2469-9926Publisher
American Physical Society (APS)External DOI
Issue
3Volume
106Page range
a032808 1-19Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Experimental Particle Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2022-11-01First Open Access (FOA) Date
2022-11-01First Compliant Deposit (FCD) Date
2022-10-31Usage metrics
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