Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Results from the NA62 2014 Commissioning Run   The main purpose of the NA62 experiment is to measure the branching ratio of
the (ultra) rare decay $K+ \rightarrow {\pi}+{\nu}\bar{\nu}$ with the precision
of 10% collecting about 100 events with the Standard Model branching fraction
in 3 years of data taking. The commissioning of the experiment after the 2014
pilot run and the prospects for the 2015 run are presented.

4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con