Bound on Lorentz- and CPT-Violating Boost Effects for the Neutron

A search for an annual variation of a daily sidereal modulation of the frequency difference between co-located \({}^{129}\)Xe and \({}^{3}\)He Zeeman masers sets a stringent limit on boost-dependent Lorentz and CPT violation involving the neutron, consistent with no effect at the level of 150 nHz. I...

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Bibliographic Details
Published in:arXiv.org 2004-10
Main Authors: Canè, F, Bear, D, Phillips, D F, Rosen, M S, Smallwood, C L, Stoner, R E, Walsworth, R L, Kostelecký, V Alan
Format: Article
Language:English
Subjects:
Annual variations
Fermions
Masers
Online Access:Get full text
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Summary:A search for an annual variation of a daily sidereal modulation of the frequency difference between co-located \({}^{129}\)Xe and \({}^{3}\)He Zeeman masers sets a stringent limit on boost-dependent Lorentz and CPT violation involving the neutron, consistent with no effect at the level of 150 nHz. In the framework of the general Standard-Model Extension, the present result provides the first clean test for the fermion sector of the symmetry of spacetime under boost transformations at a level of \(10^{-27}\) GeV.
ISSN:2331-8422
DOI:10.48550/arxiv.0309070