Year: 2025
Type: article
Abstract: Recent reactor neutrino oscillation experiments reported precision measurements of sin2(2θ 13) and Δmee2 under the standard 3ν oscillation framework. However, inter-experiment consistency checks through the parameter goodness-of-fit test reveal proximity to tension boundary, with the Double Chooz, RENO, and Daya Bay ensemble yielding pPG=0.14 vs threshold α=0.1 . Anisotropic Lorentz invariance violation (LIV) can accommodate this tension by introducing a location-dependent angle θLIV relative to the earth’s axis. It is found that anisotropic LIV improve the fit to data up to 1.9σ confidence level significance, with the coefficient A 31C( 0)=2.43×10 −17MeV yielding the best fit, while Parameter Goodness-of-fit (PG) is significantly improved within the LIV formalism.
Source: Frontiers of Physics
Authors: Hai-Xing Lin, Jie Ren, Jian Tang
Institution: Sun Yat-sen University
Language: English
Topic: Neutrino Physics Research
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4411911751