Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inclusive study of bottomonium production in association with an $\eta$
  meson in $e^+e^-$ annihilations near $\Upsilon(5S)$   We study bottomonium production in association with an $\eta$ meson in
$e^+e^-$ annihilations near the $\Upsilon(5S)$, at a center of mass energy of
$\sqrt{s}=10.866\,$GeV. The results are based on the $121.4\,$fb$^{-1}$ data
sample collected by the Belle experiment at the asymmetric energy KEKB
collider. Only the $\eta$ meson is reconstructed and the missing-mass spectrum
of $\eta$ candidates is investigated. We observe the
$e^+e^-\to\eta\Upsilon_J(1D)$ process and find evidence for the
$e^+e^-\to\eta\Upsilon(2S)$ process, while no significant signals of
$\Upsilon(1S)$, $h_b(1P)$, nor $h_b(2P)$ are found. Cross sections for the
studied processes are reported.

1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics