Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vector tetraquark state candidates: $Y(4260/4220)$, $Y(4360/4320)$,
  $Y(4390)$ and $Y(4660/4630)$   In this article, we construct the $C \otimes \gamma_\mu C$ and $C\gamma_5
\otimes \gamma_5\gamma_\mu C$ type currents to interpolate the vector
tetraquark states, then carry out the operator product expansion up to the
vacuum condensates of dimension-10 in a consistent way, and obtain four QCD sum
rules. In calculations, we use the formula
$\mu=\sqrt{M^2_{Y}-(2{\mathbb{M}}_c)^2}$ to determine the optimal energy scales
of the QCD spectral densities, moreover, we take the experimental values of the
masses of the $Y(4260/4220)$, $Y(4360/4320)$, $Y(4390)$ and $Y(4660/4630)$ as
input parameters and fit the pole residues to reproduce the correlation
functions at the QCD side. The numerical results support assigning the
$Y(4660/4630)$ to be the $C \otimes \gamma_\mu C$ type vector tetraquark state
$c\bar{c}s\bar{s}$, assigning the $Y(4360/4320)$ to be $C\gamma_5 \otimes
\gamma_5\gamma_\mu C$ type vector tetraquark state $c\bar{c}q\bar{q}$, and
disfavor assigning the $Y(4260/4220)$ and $Y(4390)$ to be the pure vector
tetraquark states.

30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph