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Spacetime-varying couplings and Lorentz violation

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arxiv astro-ph/0212003 v1 pith:PIJVKVZ7 submitted 2002-11-30 astro-ph hep-ph

Alan Kostelecky , Ralf Lehnert , Malcolm Perry This is my paper · ORCID
classification astro-phhep-ph
keywords lorentzspacetime-varyinganalyticalassociatedconstantconstantsconstraintscosmology
verification ladder T0 review T1 audit T2 compute T3 formal
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Spacetime-varying coupling constants can be associated with violations of local Lorentz invariance and CPT symmetry. An analytical supergravity cosmology with time-varying fine-structure constant provides an explicit example. Estimates are made for some experimental constraints.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Testing Antimatter Couplings with Spectroscopy

    hep-ph 2026-08 conditional novelty 7.0 of 10

    Using hydrogen, antihydrogen, and highly charged ion spectroscopy, the paper derives velocity-enhanced sensitivity to 'antimatter' couplings of a Lorentz-violating scalar and sets the strongest direct bounds for masse...

  2. Lorentz Violation with Gravitational Waves: Constraints from NANOGrav and IPTA Data

    astro-ph.CO 2025-05 conditional novelty 6.0 of 10

    Using NANOGrav 15-year and IPTA second data release, this paper sets a 68% confidence lower bound of 10^-19 GeV on the Lorentz-violating scale M_LV in a modified gravity model.

  3. Signals of nonrenormalizable Lorentz and CPT violation at the LHC

    hep-ph 2024-12 conditional novelty 6.0 of 10

    New LHC-derived bounds and projected sensitivities are obtained for dimension-five Lorentz- and CPT-violating quark operators through Z-boson exchange in Drell-Yan production.

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