• Rapid Communication

Limit on Lorentz and CPT violation of the bound neutron using a free precession He3/Xe129 comagnetometer

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, and U. Schmidt
Phys. Rev. D 82, 111901(R) – Published 29 December 2010

Abstract

We report on the search for Lorentz-violating sidereal variations of the frequency difference of colocated spin species while the Earth and hence the laboratory reference frame rotates with respect to a relic background field. The comagnetometer used is based on the detection of freely precessing nuclear spins from polarized He3 and Xe129 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<3.7·1032GeV (95% C.L.).

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  • Received 3 November 2010

DOI:https://doi.org/10.1103/PhysRevD.82.111901

© 2010 The American Physical Society

Authors & Affiliations

C. Gemmel1, W. Heil1,*, S. Karpuk1, K. Lenz1, Yu. Sobolev1, K. Tullney1, M. Burghoff2, W. Kilian2, S. Knappe-Grüneberg2, W. Müller2, A. Schnabel2, F. Seifert2, L. Trahms2, and U. Schmidt3

  • 1Institut für Physik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
  • 2Physikalische-Technische Bundesanstalt (PTB) Berlin, 10587 Berlin, Germany
  • 3Physikalisches Institut, Universität Heidelberg, 69120 Heidelberg, Germany

  • *Corresponding author. wheil@uni-mainz.de

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Issue

Vol. 82, Iss. 11 — 1 December 2010

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