Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the Dalitz plot slope parameters of the
  $K^\pm\to\pi^\pm\pi^+\pi^-$ decay   The distribution of the $K^\pm\to\pi^\pm\pi^+\pi^-$ decays in the Dalitz plot
has been measured by the NA48/2 experiment at the CERN SPS with a sample of
$4.71\times 10^8$ fully reconstructed events. With the standard Particle Data
Group parameterization the following values of the slope parameters were
obtained: $g=(-21.134\pm0.017)\%$, $h=(1.848\pm0.040)\%$,
$k=(-0.463\pm0.014)\%$. The quality and statistical accuracy of the data have
allowed an improvement in precision by more than an order of magnitude, and are
such as to warrant a more elaborate theoretical treatment, including pion-pion
rescattering, which is in preparation.

17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th