Effects of Majorana Physics on the UHE ${\nu }_{\tau }$ Flux Traversing the Earth

Abstract

We study the effects produced by sterile Majorana neutrinos on the ${\nu }_{\tau }$ flux traversing the Earth, considering the interaction between the Majorana neutrinos and the standard matter as modeled by an effective theory. The surviving tau-neutrino flux is calculated using transport equations including Majorana neutrino production and decay. We compare our results with the pure Standard Model interactions, computing the surviving flux for different values of the effective lagrangian couplings, considering the detected flux by IceCube for an operation time of ten years, and Majorana neutrinos with mass $m_N\sim m_{\tau }$.

arXiv comment27 pages, 8 figures. Revised version

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