Tests of Lorentz invariance at the Sudbury Neutrino Observatory

Abstract

Experimental tests of Lorentz symmetry in systems of all types are critical for ensuring that the basic assumptions of physics are well-founded. Data from all phases of the Sudbury Neutrino Observatory, a kiloton-scale heavy water Cherenkov detector, are analyzed for possible violations of Lorentz symmetry in the neutrino sector. Such violations would appear as one of eight possible signal types in the detector: six seasonal variations in the solar electron neutrino survival probability differing in energy and time dependence, and two shape changes to the oscillated solar neutrino energy spectrum. No evidence for such signals is observed, and limits on the size of such effects are established in the framework of the Standard Model Extension, including 40 limits on perviously unconstrained operators and improved limits on 15 additional operators. This makes limits on all minimal, Dirac-type Lorentz violating operators in the neutrino sector available for the first time.

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Cited by in corpus (16)

• Snowmass White Paper: Beyond the Standard Model effects on Neutrino Flavor
• The Future of Solar Neutrinos
• Gravitational waves effects in a Lorentz-violating scenario
• Sterile Neutrino Shape-shifting Caused by Dark Matter
• New test of Lorentz invariance using the MICROSCOPE space mission
• Neutrino Oscillations and Lorentz Invariance Violation
• Solar fusion III: New data and theory for hydrogen-burning stars
• Exploring the effect of Lorentz invariance violation with the currently running long-baseline experiments
• Investigating the effects of Lorentz Invariance Violation on the CP-sensitivities of the Deep Underground Neutrino Experiment
• Quantum gravity phenomenology at the dawn of the multi-messenger era -- A review
• Defining of three-dimensional acceleration and inertial mass leading to the simple form F=MA of relativistic motion equation
• Effects of the Violation of the Equivalence Principle at DUNE
• Constraining the isotropic CPT-odd coefficients of the Standard Model Extension by a combined DUNE and ESSnuSB analysis
• Indications against dynamical CPT symmetry restoration in quantum gravity
• Lorentz symmetry and high-energy neutrino astronomy
• The Sensitivity of DUNE in Presence of Off-Diagonal Scalar NSI Parameters