Neutrino Oscillations Induced by Space-Time Torsion

TL;DR

This paper investigates how space-time torsion in a Riemann-Cartan framework influences neutrino oscillations, revealing torsion effects dependent on spin that are significant at Planck scale energies.

Contribution

It introduces a novel analysis of gravitational neutrino oscillations incorporating torsion effects in Riemann-Cartan space-time, highlighting spin-dependent torsion contributions.

Findings

Torsion effects depend on neutrino spin orientation.

Torsion contributions are of the order of Planck scales.

Neutrino oscillation phases are affected by space-time torsion.

Abstract

The gravitational neutrino oscillation problem is studied by considering the Dirac Hamiltonian in a Riemann-Cartan space-time and calculating the dynamical phase. Torsion contributions which depend on the spin direction of the mass eigenstates are found. These effects are of the order of Planck scales.