Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theory of hadronic molecules applied to the XYZ states   In recent years data have been accumulated at various experiments about
states in the heavy quarkonium mass range that seem to be inconsistent with the
most simple variants of the quark model. In this contribution it is
demonstrated that most of those data are consistent with a dominant molecular
nature of those states. It is also discussed which kind of observables are
sensitive to the molecular component and which are not.

6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph