Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Separation of a single photon and products of the $\pi^0,\eta, K^0_s$
  meson neutral decay channels in the CMS electromagnetic calorimeter using
  neural network   The artificial neural network approach is used for separation of signals from
a single photon $\gamma$ and products of the $\pi^0,\eta, K^0_s$ meson neutral
decay channels on the basis of the data from the CMS electromagnetic
calorimeter alone. Rejection values for the three types of mesons as a function
of single photon selection efficiencies are obtained for two Barrel and one
Endcap pseudorapidity regions and initial $\Et$ of 20, 40, 60 and 100 GeV.

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The categories of this paper are: patt-sol
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
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The categories of this paper are: plasm-ph
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat