A measurement of the neutron to 199Hg magnetic moment ratio
S. Afach, C.A. Baker, G. Ban, G. Bison, K. Bodek, M. Burghoff, Z., Chowdhuri, M. Daum, M. Fertl, B. Franke, P. Geltenbort, K. Green, M.G.D. van, der Grinten, Z. Grujic, P.G. Harris, W. Heil, V. H\'elaine, R. Henneck, M., Horras, P. Iaydjiev, S.N. Ivanov, M. Kasprzak
TL;DR
This paper reports a precise measurement of the neutron to 199Hg magnetic moment ratio using ultracold neutrons and mercury atoms in the same volume, achieving an uncertainty of 0.8 ppm.
Contribution
It provides a highly accurate ratio of neutron to 199Hg magnetic moments, improving the precision of fundamental magnetic property measurements.
Findings
Measured ratio: 3.8424574(30)
Uncertainty of 0.8 ppm achieved
Method using ultracold neutrons and mercury atoms in shared volume
Abstract
The neutron gyromagnetic ratio has been measured relative to that of the 199Hg atom with an uncertainty of 0.8 ppm. We employed an apparatus where ultracold neutrons and mercury atoms are stored in the same volume and report the result .
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