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Neutrino oscillations in gravitational and cosmological backgrounds

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arxiv 1909.02735 v2 pith:W64CRY7T submitted 2019-09-06 hep-ph astro-ph.COgr-qc

George Koutsoumbas , Dimitrios Metaxas This is my paper · ORCID
classification hep-phastro-ph.COgr-qc
keywords gravitationalneutrinoperturbationsphaseadditionalalthoughapproximationapproximations
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We use the eikonal approximation in order to calculate the additional phase shift between two neutrino mass eigenstates during their propagation in a background of gravitational wave or scalar perturbations in the flat and the FRW spacetime metric. We comment on the dependence of the results on the characteristics of the perturbations, give some order-of-magnitude estimates, and find that, although small, the resulting phase difference persists for large redshifts, up to the validity of our approximations.

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Cited by 1 Pith paper

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  1. Effects of gravitational lensing on neutrino oscillation in Hu-Sawicki f(R) gravity

    hep-ph 2025-06 conditional novelty 4.0 of 10

    Neutrino oscillation probabilities from lensed paths in Hu-Sawicki f(R) gravity are derived, showing sensitivity to λ and to neutrino mass parameters.

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