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High Energy Physics - Phenomenology, hep-ph
Abstract:
We show how neutrino mixing leads to a softening of the UV behavior of
neutrino loops, and can give rise to anomaly-like, but manifestly UV finite
amplitudes. This mechanism may be of special significance for the coupling of
dark matter-like particles to the Standard Model, as we illustrate with a
one-loop example involving the coupling to $W$-bosons.
