Gravitational Depolarization of Ultracold Neutrons: Comparison with Data
Instrumentation and Detectors
2015-09-30 v3 High Energy Physics - Experiment
Abstract
We compare the expected effects of so-called gravitationally enhanced depolarization of ultracold neutrons to measurements carried out in a spin-precession chamber exposed to a variety of vertical magnetic-field gradients. In particular, we have investigated the dependence upon these field gradients of spin depolarization rates and also of shifts in the measured neutron Larmor precession frequency. We find excellent qualitative agreement, with gravitationally enhanced depolarization accounting for several previously unexplained features in the data.
Keywords
Cite
@article{arxiv.1506.06563,
title = {Gravitational Depolarization of Ultracold Neutrons: Comparison with Data},
author = {S. Afach and N. J. Ayres and C. A. Baker and G. Ban and G. Bison and K. Bodek and M. Fertl and B. Franke and P. Geltenbort and K. Green and W. C. Griffith and M. van der Grinten and Z. D. Grujic and P. G. Harris and W. Heil and V. Helaine and P. Iaydjiev and S. N. Ivanov and M. Kasprzak and Y. Kermaidic and K. Kirch and H. -C. Koch and S. Komposch and A. Kozela and J. Krempel and B. Lauss and T. Lefort and Y. Lemiere and M. Musgrave and O. Naviliat-Cunic and J. M. Pendlebury and F. M. Piegsa and G. Pignol and C. Plonka-Spehr and P. N. Prashanth and G. Quemener and M. Rawlik and D. Rebreyend and D. Ries and S. Roccia and D. Rozpedzik and P. Schmidt-Wellenburg and N. Severijns and D. Shiers and J. A. Thorne and A. Weis and E. Wursten and J. Zejma and J. Zenner and G. Zsigmond},
journal= {arXiv preprint arXiv:1506.06563},
year = {2015}
}
Comments
10 pages, 6 figures. Updated: section added about implications for current nEDM limit