Neutrino oscillation in the q-metric

Abstract

This study investigates how neutrino oscillation phase shifts are affected by an axially symmetric deformation of spacetime described by the q‑metric (Zipoy–Voorhees). Both weak (Solar System) and strong (neutron stars and white dwarfs) gravitational regimes are analyzed. Results show negligible deviations within the Solar System, whereas significant effects appear for compact objects. The work discusses implications for constraining theory via astrophysical neutrino observations and suggests future experimental prospects.