Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theory Overview on Spectroscopy   A theoretical overview of the exotic spectroscopy in the charm and beauty
quark sector is presented. These states are unexpected harvest from the
$e^+e^-$ and hadron colliders and a permanent abode for the majority of them
has yet to be found. We argue that some of these states, in particular the
$Y_b(10890)$ and the recently discovered states $Z_b(10610)$ and $Z_b(10650)$,
discovered by the Belle collaboration are excellent candidates for tetraquark
states
  $[bq][\bar{b}\bar{q}]$, with $q=u,d$ light quarks. Theoretical analyes of the
Belle data carried out in the tetraquark context is reviewed.

4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg