Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of an enhancement in $e^+e^- \to \Upsilon(1S)\pi^+ \pi^-$,
  $\Upsilon(2S)\pi^+ \pi^-$, and $\Upsilon(3S)\pi^+ \pi^-$ production around
  $\sqrt{s}=10.89$ GeV at Belle   We measure the production cross sections for $e^+e^- \to
\Upsilon(1S)\pi^+\pi^-$, $\Upsilon(2S)\pi^+\pi^-$, and $\Upsilon(3S)\pi^+\pi^-$
as a function of $\sqrt{s}$ between 10.83 GeV and 11.02 GeV. The data consists
of 8.1 fb$^{-1}$ collected with the Belle detector at the KEKB $e^+e^-$
collider. We observe enhanced production in all three final states that does
not conform well with the conventional $\Upsilon(10860)$ lineshape. A fit using
a Breit-Wigner resonance shape yields a peak mass of $[10888.4^{+2.7}_{-2.6}
({\rm stat}) \pm1.2 ({\rm syst})]$ MeV/$c^2$ and a width of
$[30.7_{-7.0}^{+8.3} ({\rm stat}) \pm3.1 ({\rm syst})]$ MeV/$c^2$.

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The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th