Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Low energy neutrinos from stopped muons in the Earth   We explore the low energy neutrinos from stopped cosmic ray muons in the
Earth. Based on the muon intensity at the sea level and the muon energy loss
rate, the depth distributions of stopped muons in the rock and sea water can be
derived. Then we estimate the $\mu^-$ decay and nuclear capture probabilities
in the rock. Finally, we calculate the low energy neutrino fluxes and find that
they depend heavily on the detector depth $d$. For $d = 1000$ m, the $\nu_e$,
$\bar{\nu}_e$, $\nu_\mu$ and $\bar{\nu}_\mu$ fluxes in the range of 13 MeV $
\leq E_\nu \leq$ 53 MeV are averagely $10.8 \%$, $6.3\%$, $3.7 \%$ and $6.2 \%$
of the corresponding atmospheric neutrino fluxes, respectively. The above
results will be increased by a factor of 1.4 if the detector depth $d < 30$ m.
In addition, we find that most neutrinos come from the region within 200 km and
the near horizontal direction, and the $\bar{\nu}_e$ flux depends on the local
rock and water distributions.

9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
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
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci