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Showing 1 to 3 of 3 for “"Standard Model Extension"”.
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Progress towards an optimized ¹²⁹Xe / ³He Zeeman maser and a test of boost symmetry
… of 150 nHz. In the framework of the general Standard-Model Extension, our 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 [1]. We also report progress on the optimization and operation of the …
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Radiative Corrections to and Connections Among Theories With Lorentz Violation and Time-Varying Couplings
<p>Different models containing Lorentz violation are studied in order to explore possible new physics beyond the standard model. In the electromagnetic sector, a time-variation in the fine structure constant &alpha is studied as a possible mechanism to generate Lorentz, CPT and gauge symmetry …
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A search for Lorentz and CPT violations in double-β decay with the complete exo-200 dataset
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms