Gravitational depolarization of ultracold neutrons: comparison with data

Afach, S, Ayres, N J, Baker, C A, Ban, G, Bison, G, Bodek, K, Fertl, M, Franke, B, Geltenbort, P, Green, K, Griffith, W C, van der Grinten, M, Grujić, Z D, Harris, P G, Heil, W, Hélaine, V, Iaydjiev, P, Ivanov, S N, Kasprzak, M, Kermaidic, Y, Kirch, K, Koch, H-C, Komposch, S, Kozela, A, Krempel, J, Lauss, B, Lefort, T, Lemière, Y, Musgrave, M, Naviliat-Cuncic, O, Pendlebury, J M, Piegsa, F M, Pignol, G, Plonka-Spehr, C, Prashanth, P N, Quéméner, G, Rawlik, M, Rebreyend, D, Ries, D, Roccia, S, Rozpedzik, D, Schmidt-Wellenburg, P, Severijns, N, Shiers, D, Thorne, J, Weis, A, Wursten, E, Zejma, J, Zenner, J and Zsigmond, G (2015) Gravitational depolarization of ultracold neutrons: comparison with data. Physical Review D, 92 (5). 052008. ISSN 1550-7998

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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.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Philip Harris
Date Deposited: 13 Oct 2015 12:23
Last Modified: 01 Jul 2019 17:46
URI: http://sro.sussex.ac.uk/id/eprint/57096

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Project NameSussex Project NumberFunderFunder Ref
Consolidated GrantG0927STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/K001329/1
Neutron EDMG1558STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/M003426/1
Magnetic Field Uniformity and Ultracold Neutron Storage Optimization for CryoEDMG1288STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/L006472/1