PhysRevLett.124.081803.pdf (675.72 kB)
Measurement of the permanent electric dipole moment of the neutron
Version 2 2023-06-12, 09:25
Version 1 2023-06-09, 20:49
journal contribution
posted on 2023-06-12, 09:25 authored by Christopher Abel, S Afach, N J Ayres, C A Baker, G Ban, G Bison, K Bodek, V Bondar, M Burghoff, E Chanel, Z Chowdhuri, P-J Chiu, B Clement, C B Crawford, M Daum, S Emmenegger, L Ferraris-Bouchez, M Fertl, P Flaux, B Franke, A Fratangelo, P Geltenbort, K Green, Clark GriffithClark Griffith, M van der Grinten, Z D Grujic, Philip Harris, L Hayen, W Heil, R Henneck, V Hélaine, N Hild, Z Hodge, M Horras, P Iaydjiev, S N Ivanov, M Kasprzak, Y Kermaidic, K Kirch, A Knecht, P Knowles, H-C Koch, P A Koss, S Komposch, A Kozela, A Kraft, J Krempel, M Kuzniak, B Lauss, T Lefort, Y Lemière, A Leredde, P Mohanmurthy, A Mtchedlishvili, M Musgrave, O Naviliat-Cuncic, D Pais, F M Piegsa, E Pierre, G Pignol, C Plonka-Spehr, P N Prashanth, G Quéméner, M Rawlik, D Rebreyend, I Rienäcker, D Ries, S Roccia, G Rogel, D Rozpedzik, A Schnabel, P Schmidt-Wellenburg, N Severijns, D Shiers, R Tavakoli Dinani, J A Thorne, R Virot, J Voigt, A Weis, E Wursten, G Wyszynski, J Zejma, J Zenner, G ZsigmondWe present the result of an experiment to measure the electric dipole moment EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magnetic fields with ultracold neutrons (UCN). Our measurement stands in the long history of EDM experiments probing physics violating time reversal invariance. The salient features of this experiment were the use of a Hg-199 co-magnetometer and an array of optically pumped cesium vapor magnetometers to cancel and correct for magnetic field changes. The statistical analysis was performed on blinded datasets by two separate groups while the estimation of systematic effects profited from an unprecedented knowledge of the magnetic field. The measured value of the neutron EDM is $d_{\rm n} = (0.0\pm1.1_{\rm stat}\pm0.2_{\rmsys})\times10^{-26}e\,{\rm cm}$.
History
Publication status
- Published
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- Published version
Journal
Physical Review LettersISSN
1079-7114Publisher
American Physical SocietyExternal DOI
Issue
8Volume
124Page range
081803-1-081803-7Department affiliated with
- Physics and Astronomy Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2020-04-10First Open Access (FOA) Date
2020-04-10First Compliant Deposit (FCD) Date
2020-04-10Usage metrics
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