4.3 Article

An analysis of cosmic neutrinos: Flavor composition at source and neutrino mixing parameters

Journal

NUCLEAR PHYSICS B
Volume 821, Issue 1-2, Pages 197-214

Publisher

ELSEVIER
DOI: 10.1016/j.nuclphysb.2009.06.017

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Funding

  1. Bonyad-e Melli-e Nokhbegan

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We examine the feasibility of deriving neutrino mixing parameters and 013 from the cosmic neutrino flavor composition under the assumption that the flavor ratios of the cosmic neutrinos at the source were F nu(e) + F (nu) over bare : F nu(mu) + F nu(r) + F (nu) over bar (r) = 1 : 2 : 0. We analyze various uncertainties that enter the derivation of and theta(13) from the ratio of the shower-like to mu-tracks events which is the only realistic source of information on the flavor composition at neutrino telescopes such as ICECUBE. We then examine to what extent the deviation of the initial flavor ratio from 1 : 2 : 0 can be tested by measurement of this ratio at neutrino telescopes taking into account various sources of uncertainty. (C) 2009 Elsevier B.V. All rights reserved.

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