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arXiv · 1011.2143

Limit on Lorentz and CPT violation of the bound Neutron Using a Free Precession 3He/129Xe co-magnetometer

C. Gemmel·W. Heil·S. Karpuk·K. Lenz·Yu. Sobolev·K. Tullney·M. Burghoff·W. Kilian·S. Knappe-Grüneberg·W. Müller·A. Schnabel·F. Seifert·L. Trahms·U. Schmidt
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Abstract

We report on the search for Lorentz violating sidereal variations of the frequency difference of co-located spin-species while the Earth and hence the laboratory reference frame rotates with respect to a relic background field. The co-magnetometer used is based on the detection of freely precessing nuclear spins from polarized 3He and 129Xe gas samples using SQUIDs as low-noise magnetic flux detectors. As result we can determine the limit for the equatorial component of the background field interacting with the spin of the bound neutron to be bn < 3.7 x 10^{-32} GeV (95 C.L.).

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C. Gemmel, W. Heil, S. Karpuk, K. Lenz, Yu. Sobolev, K. Tullney, M. Burghoff, W. Kilian, S. Knappe-Grüneberg, W. Müller, A. Schnabel, F. Seifert, L. Trahms, U. Schmidt. 2011-01-19. Limit on Lorentz and CPT violation of the bound Neutron Using a Free Precession 3He/129Xe co-magnetometer. https://doi.org/10.1103/physrevd.82.111901

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