Magnetic field uniformity in neutron electric dipole moment experiments
Instrumentation and Detectors
2019-09-02 v2 High Energy Physics - Experiment
Abstract
Magnetic field uniformity is of the utmost importance in experiments to measure the electric dipole moment of the neutron. A general parametrization of the magnetic field in terms of harmonic polynomial modes is proposed, going beyond the linear-gradients approximation. We review the main undesirable effects of non-uniformities: depolarization of ultracold neutrons, and Larmor frequency shifts of neutrons and mercury atoms. The theoretical predictions for these effects were verified by dedicated measurements with the single-chamber nEDM apparatus installed at the Paul Scherrer Institute.
Keywords
Cite
@article{arxiv.1811.06085,
title = {Magnetic field uniformity in neutron electric dipole moment experiments},
author = {C. Abel and N. Ayres and T. Baker and G. Ban and G. Bison and K. Bodek and V. Bondar and C. Crawford and P. -J. Chiu and E. Chanel and Z. Chowdhuri and M. Daum and B. Dechenaux and S. Emmenegger and L. Ferraris-Bouchez and P. Flaux and P. Geltenbort and K. Green and W. C. Griffith and M. van der Grinten and P. G. Harris and R. Henneck and N. Hild and P. Iaydjiev and S. N. Ivanov and M. Kasprzak and Y. Kermaidic and K. Kirch and H. -C. Koch and S. Komposch and P. A. Koss and A. Kozela and J. Krempel and B. Lauss and T. Lefort and Y. Lemiere and A. Leredde and P. Mohanmurthy and D. Pais and F. M. Piegsa and G. Pignol and G. Quéméner and M. Rawlik and D. Rebreyend and D. Ries and S. Roccia and D. Rozpedzik and P. Schmidt-Wellenburg and A. Schnabel and N. Severijns and R. Virot and A. Weis and E. Wursten and G. Wyszynski and J. Zejma and G. Zsigmond},
journal= {arXiv preprint arXiv:1811.06085},
year = {2019}
}