Neutrino Oscillations in Strong Gravitational Fields

Neutrino oscillations in the presence of strong gravitational fields are studied. We look at very high energy neutrinos ($\sim$1 TeV) emanating from Active Galactic Nuclei (AGN). It is observed that spin flavor resonant transitions of such neutrinos may occur in the vicinity of AGN due to {\it gravitational} effects and due to the presence of a large magnetic field ($\sim$1 Tesla). A point to note is that matter effects (normal MSW transitions) become negligible in comparison o gravitational effects in our scenario.

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