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Determinations of flavor ratios and flavor transitions of astrophysical neutrinos

By G. -L. Lin, T. C. Liu, K. -C. Lai and M. A. Huang


We argue that an effective flavor discrimination in neutrino telescopes is the key to probe the flavor ratios of astrophysical neutrinos at the source and flavor transition mechanisms of these neutrinos during their propagations from the source to the Earth. We first discuss how well one can reconstruct the flavor ratios of astrophysical neutrinos at the source. We then discuss how to probe flavor transition mechanisms of propagating astrophysical neutrinos. In this regard, we propose a model independent parametrization for neutrino flavor transitions, with the neutrino oscillation as a special case.Comment: 4 pages; presented at ICHEP 2010, July 22-28, 2010, Paris, Franc

Topics: High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics
Year: 2011
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