Year: 2020
Type: article
Abstract: We 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. 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 ^{199}Hg comagnetometer 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_{n}=(0.0±1.1_{stat}±0.2_{sys})×10^{-26} e.cm.
Source: Physical Review Letters
Authors: C. 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, W. C. Griffith, M. van der Grinten, Z. D. Grujić, P. G. 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. Kuźniak, 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. Zsigmond
Institutions: University of Sussex, Paul Scherrer Institute, ETH Zurich, Institute for Particle Physics and Astrophysics, Rutherford Appleton Laboratory, Centre National de la Recherche Scientifique, École Nationale Supérieure d'Ingénieurs de Caen, Laboratoire de Physique Corpusculaire de Caen, Institut National de Physique Nucléaire et de Physique des Particules, Université de Caen Normandie, Jagiellonian University, KU Leuven, Physikalisch-Technische Bundesanstalt, University of Bern, Institut polytechnique de Grenoble, Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble Alpes, University of Kentucky, Johannes Gutenberg University Mainz, Institut Laue-Langevin, University of Fribourg, University of Belgrade, Institute of Physics Belgrade, Institute of Nuclear Physics, Polish Academy of Sciences, Université Paris-Sud
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,750
Funders: National Science Foundation, University of Bern, Deutsche Forschungsgemeinschaft, Agence Nationale de la Recherche, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Fonds Wetenschappelijk Onderzoek, KU Leuven, Infrastruktura PL-Grid, Vlaamse regering, Science and Technology Facilities Council, Staatssekretariat für Bildung, Forschung und Innovation, H2020 European Research Council
Awards: G1154261349, G1301093129, Search for the neutron EDM at the high intensity ultracold neutron source at PSI with an upgraded high sensitivity spectrometer – Follow-up application, G1326081225, Magnetic Field Uniformity and Ultracold Neutron Storage Optimization for CryoEDM, Optical magnetometry for a new neutron EDM experiment, Pushing the high intensity frontier for ultracold neutrons, G1893237010, G1970854871, Sussex Experimental Particle Physics 2015 Consolidated Grant, G2322385174, G2338116389, Search for the neutron EDM at the high intensity ultracold neutron source at PSI with an upgraded high sensitivity spectrometer – Follow-up application II., Spin-spectroscopy with ultracold neutrons - Searching for dark matter and lorentz violation using spin-precessing neutrons, G3377414226, Precision Physics with Muons and Ultracold Neutrons, Neutron EDM, G3715868414, G3720133008, G3962452339, G4292142414, STFC Experimental Particle Physics 2018 Consolidated Grant, G5032218751, G5059475710, Search for the neutron EDM at the high intensity ultracold neutron source at PSI with an upgraded high sensitivity spectrometer, Highly accurate vector gradiometers for a next-generation neutron EDM experiment, G5596928773, The PSI polarized ultracold neutron source: optimization and first test measurements, Development and implementation of a Helium-3 magnetometry system for the PSI neutron EDM experiment, G6477534076, Measurement of the neutron electric dipole moment, Low Energy Particle Physics with Cold and Ultracold Neutrons, STFC Sussex 2015 DTP, Mesure du moment électrique dipolaire du neutron
OpenAlex ID: W3003155274