Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Atmospheric muons: experimental aspects   We present a review of atmospheric muon flux and energy spectrum measurements
over almost six decades of muon momentum. Sea-level and underground/water/ice
experiments are considered. Possible sources of systematic errors in the
measurements are examinated. The characteristics of underground/water muons
(muons in bundle, lateral distribution, energy spectrum) are discussed. The
connection between the atmospheric muon and neutrino measurements are also
reported.

24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph