Lorentz violating backgrounds from quadratic, shift-symmetric, ultralight dark matter
arXiv:2404.17636 · doi:10.1007/JHEP08(2024)114
Abstract
We consider an effective theory for a shift-symmetric, quadratically-coupled, ultralight spin-0 field. The leading CP-conserving interactions with Standard Model fields in the effective theory arise at dimension 8. We discuss the renormalization group evolution and positivity bounds on these operators, as well as their possible UV origins. Assuming that the spin-0 field is associated with an ultralight dark matter candidate, we discuss the effects of the dimension-8 operators on experiments searching for the oscillation of fundamental constants and Lorentz violation. We find that the direct bounds on these two effects are of similar strength but rather weak, corresponding to a UV cutoff scale of keV order, as they are mediated by dimension-8 operators.
28 pages, 6 figures, 1 table; Edited acknowledgment; Edited for submission to JHEP; Edited Bibliography and text color
References in corpus (13)
- Causality, Analyticity and an IR Obstruction to UV Completion
- Environmental Dependence of Masses and Coupling Constants
- Enhanced effect of temporal variation of the fine structure constant in diatomic molecules
- Precision Metrology Meets Cosmology: Improved Constraints on Ultralight Dark Matter from Atom-Cavity Frequency Comparisons
- Improved limits for violations of local position invariance from atomic clock comparisons
- Vacuum Cerenkov Radiation in Lorentz-Violating Theories Without CPT Violation
- Improved limits on the coupling of ultralight bosonic dark matter to photons from optical atomic clock comparisons
- Ultrahigh-energy cosmic-ray bounds on nonbirefringent modified-Maxwell theory
- Search for ultralight dark matter from long-term frequency comparisons of optical and microwave atomic clocks
- Searching for photon-sector Lorentz violation using gravitational-wave detectors
- The Phenomenology of Quadratically Coupled Ultra Light Dark Matter
- -Anomalous Interactions of the Holographic Dilaton
- Improved Bounds on Lorentz Symmetry Violation From High-Energy Astrophysical Sources