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Diffuse ultra-high energy neutrino fluxes and physics beyond the Standard Model
Physics Letters B
We study spectral distortions of diffuse ultra-high energy (UHE) neutrino flavour fluxes resulting due to physics beyond the Standard Model (SM). Even large spectral differences between flavours at the source are massaged into a common shape at earth by SM oscillations, thus, any significant observed spectral differences are an indicator of new physics present in the oscillation probability during propagation. Neutrino decay and Lorentz symmetry violation (LV) are examples, and result indoi:10.1016/j.physletb.2010.04.078 fatcat:vhokjpqeufcfzieegapqvbvy5a