Limit on Lorentz and CPT violation of the bound neutron using a free precession He3/Xe129 comagnetometer
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<3.7·10-32GeV (95% C.L.).
- Publication:
-
Physical Review D
- Pub Date:
- December 2010
- DOI:
- 10.1103/PhysRevD.82.111901
- arXiv:
- arXiv:1011.2143
- Bibcode:
- 2010PhRvD..82k1901G
- Keywords:
-
- 06.30.Ft;
- 07.55.Ge;
- 11.30.Cp;
- 11.30.Er;
- Time and frequency;
- Magnetometers for magnetic field measurements;
- Lorentz and Poincare invariance;
- Charge conjugation parity time reversal and other discrete symmetries;
- General Relativity and Quantum Cosmology
- E-Print:
- 5 pages, 4 figures