CERN Accelerating science

Article
Report number	arXiv:1506.06563
Title	Gravitational Depolarization of Ultracold Neutrons: Comparison with Data
Author(s)	Afach, S (Zurich, ETH) ; Ayres, N J ; Baker, C A (Rutherford) ; Ban, G (Caen U.) ; Bison, G (PSI, Villigen) ; Bodek, K (Jagiellonian U.) ; Fertl, M (PSI, Villigen ; Zurich, ETH) ; Franke, B (PSI, Villigen ; Zurich, ETH) ; Geltenbort, P (Laue-Langevin Inst.) ; Green, K (Guelph U. ; Rutherford) ; Griffith, W C (NIST, Boulder ; Washington U., Seattle) ; van der Grinten, M (Rutherford) ; Grujic, Z D (Fribourg U.) ; Harris, P G (CERN) ; Heil, W (Mainz U., Inst. Phys.) ; Helaine, V (ENSICAEN ; PSI, Villigen) ; Iaydjiev, P (Sofiya, Inst. Nucl. Res.) ; Ivanov, S N (Serpukhov, IHEP) ; Kasprzak, M (Fribourg U.) ; Kermaidic, Y (LPSC, Grenoble) ; Kirch, K (PSI, Villigen ; Zurich, ETH) ; Koch, H-C (Fribourg U. ; Mainz U., Inst. Phys.) ; Komposch, S (PSI, Villigen ; Zurich, ETH) ; Kozela, A (Cracow, INP) ; Krempel, J (Zurich, ETH) ; Lauss, B (PSI, Villigen) ; Lefort, T (ENSICAEN) ; Lemiere, Y (Caen U.) ; Musgrave, M (Tennessee U.) ; Naviliat-Cunic, O ; Pendlebury, J M (Sussex U.) ; Piegsa, F M (Zurich, ETH) ; Pignol, G (Munich, Tech. U., Universe) ; Plonka-Spehr, C (Mainz U., Inst. Phys.) ; Prashanth, P N (Leuven U.) ; Quemener, G (LPSC, Grenoble) ; Rawlik, M (Jagiellonian U.) ; Rebreyend, D (LPSC, Grenoble) ; Ries, D (PSI, Villigen ; Zurich, ETH) ; Roccia, S (Leuven U.) ; Rozpedzik, D (Jagiellonian U.) ; Schmidt-Wellenburg, P (PSI, Villigen) ; Severijns, N (Leuven U.) ; Shiers, D (Sussex U.) ; Thorne, J A ; Weis, A (Fribourg U.) ; Wursten, E (Leuven U.) ; Zejma, J (Jagiellonian U.) ; Zenner, J (Zurich, ETH) ; Zsigmond, G (PSI, Villigen)
Publication	2015
Imprint	22 Jun 2015
Number of pages	10
Note	Comments: 10 pages, 6 figures Comments: 10 pages, 6 figures. Updated: section added about implications for current nEDM limit
In:	Phys. Rev. D 92 (2015) 052008
DOI	10.1103/PhysRevD.92.052008
Subject category	Detectors and Experimental Techniques
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.
Copyright/License	arXiv nonexclusive-distrib. 1.0 publication: © 2015-2024 The Author(s) (License: CC-BY-3.0)

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