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Title page for ETD etd-03212017-132701

Type of Document Dissertation
Author Fu, Lingjun
URN etd-03212017-132701
Title Flavor Propagations of High Energy Cosmic Neutrinos
Degree PhD
Department Physics
Advisory Committee
Advisor Name Title
Thomas Weiler Committee Chair
Julia Velkovska Committee Member
Kelly Holley-Bockelmann Committee Member
Paul Sheldon Committee Member
Thomas Kephart Committee Member
  • High Energy Phenomenology
  • Flavor Propagations
  • Neutrinos
Date of Defense 2017-03-20
Availability unrestricted
Neutrinos play a significant role in the Standard Model and the recent discovery of high energy cosmic neutrinos at IceCube has signified the beginning of neutrino astroparticle physics. The cosmic neutrino’s direction and energy are preserved, and its flavor is altered in a calculable way. We study how to use the inverse propagation matrix to infer the cosmic neutrino injection models using observed flavor ratios at the Earth. This is possible after the discovery of broken symmetry which guarantees a non-vanishing determinant. Moreover, we demonstrate how to use neutrino telescope experiments to study mass hierarchy in beyond standard scenarios. We calculate the predicted Glashow Resonant (GR) events rate to explain the absence of GR events at IceCube. The flavor triangle is a powerful tool to connect the mixing parameters, cosmic sources, and observed Earthly ratios. We prove some useful theorems regarding the flavor triangles and discuss how to use these theorems to make inference.
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