Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of Majorana Physics on the UHE $\nu_{\tau}$ Flux Traversing the
  Earth   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 $m_N \thicksim m_{\tau}$.

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The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
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The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
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The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
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The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
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The categories of this paper are: atom-ph
1
The categories of this paper are: cs
2
The categories of this paper are: math
30
The categories of this paper are: q-alg