Constant spatial torsion induces spin-dependent effective masses for neutrinos that modify both frequencies and amplitudes of flavor oscillations in the QFT description, with largest effects at low momentum when torsion scale matches neutrino masses.
Spacetime torsion signatures in neutrino oscillation physics
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abstract
We report on recent results concerning neutrino oscillation in the presence of background torsion. In the context of Einstein-Cartan theory, we find new oscillation formulas for constant torsion and linearly time-dependent torsion. The oscillation formulas obtained depend on the orientation of the spin.
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hep-ph 1years
2026 1verdicts
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Spin-dependent neutrino oscillations in torsion backgrounds: A quantum-field-theoretic analysis
Constant spatial torsion induces spin-dependent effective masses for neutrinos that modify both frequencies and amplitudes of flavor oscillations in the QFT description, with largest effects at low momentum when torsion scale matches neutrino masses.