1. Mapping of the magnetic field to correct systematic effects in a neutron electric dipole moment experiment
- Author
-
Abel, C., Ayres, N.J., Ban, G., Bison, G., Bodek, K., Bondar, V., Chanel, E., Chiu, P.-J., Clément, B., Crawford, C.B., Daum, M., Emmenegger, S., Ferraris-Bouchez, L., Fertl, M., Flaux, P., Fratangelo, A., Griffith, W.C., Grujić, Z.D., Harris, P.G., Hayen, L., Hild, N., Kasprzak, M., Kirch, K., Knowles, P., Koch, H.-C., Komposch, S., Koss, P.A., Kozela, A., Krempel, J., Lauss, B., Lefort, T., Lemière, Y., Mohanmurthy, P., Naviliat-Cuncic, O., Pais, D., Piegsa, F.M., Pignol, G., Prashanth, P.N., Quéméner, G., Rawlik, M., Ries, D., Rebreyend, D., Roccia, S., Rozpedzik, D., Schmidt-Wellenburg, P., Schnabel, A., Severijns, N., Thorne, J.A., Virot, R., Weis, A., Wursten, E., Wyszynski, G., Zejma, J., Zsigmond, G., Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Institut Laue-Langevin (ILL), ILL, and Publica
- Subjects
magnetic field: spatial distribution ,n: electric moment ,mercury ,Physics - Instrumentation and Detectors ,measurement methods ,FOS: Physical sciences ,Instrumentation and Detectors (physics.ins-det) ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,Physics::Atomic Physics ,Nuclear Experiment (nucl-ex) ,Nuclear Experiment - Abstract
Experiments 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. ISSN:1094-1622 ISSN:0556-2791 ISSN:1050-2947
- Published
- 2021