Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mixing of scalar tetraquark and quarkonia states in a chiral approach   A chiral invariant Lagrangian describing the tetraquark-quarkonia interaction
is considered at the leading and subleading order in the large-$N_{c}$
expansion. Spontaneous chiral symmetry breaking generates mixing of scalar
tetraquark and quarkonia states and non-vanishing tetraquark condensates. In
particular, the mixing strength is related to the decay strengths of tetraquark
states into pseudoscalar mesons. The results show that scalar states below 1
GeV are mainly four-quark states and the scalars between 1 and 2 GeV
quark-antiquark states, probably mixed with the scalar glueball in the
isoscalar sector.

1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom