Speaker
Prof.
Werner Heil
(Institute of Physics)
Description
W. Heil_1, F. Allmendinger_3, M. Burghoff_2, S. Karpuk_1, W. Kilian_2,S. Knappe-Grueneberg_2, U. Schmidt_3, A. Schnabel_2, F. Seifert_2, Yu. Sobolev_1, L. Trahms_2, K. Tullney_1
1-Institut für Physik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
2-Physikalische-Technische-Bundesanstalt Berlin, 10587 Berlin, Germany
3-Physikalisches Institut, Universiät Heidelberg, 69120 Heidelberg, Germany
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 b_n < 1 · 10−33 GeV (95% C.L.). This new result sets the tightest contrain on SME parameters for the bound neutron.
Primary author
Prof.
Werner Heil
(Institute of Physics)
Co-author
Dr
Sergej Karpuk
(Institut für Physik)
