Relativity violations and beta decay

Abstract

In some quantum theories of gravity, deviations from the laws of relativity could be comparatively large while escaping detection to date. In the neutrino sector, precision experiments with beta decay yield new and improved constraints on these countershaded relativity violations. Existing data are used to extract bounds of $3\times 10^{-8}$ GeV on the magnitudes of two of the four possible coefficients, and estimates are provided of future attainable sensitivities in a variety of experiments.

5 pages two-column REVTeX, version published in Rapid Communications, Physical Review D

References in corpus (6)

• Search for Neutrinoless Double-Beta Decay in ${}^{136}$Xe with EXO-200
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• Perturbative Lorentz and CPT violation for neutrino and antineutrino oscillations
• Search for a Lorentz-violating sidereal signal with atmospheric neutrinos in IceCube
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• Lorentz violating extension of the Standard Model and the Beta-decay end-point

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