Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gravitational formfactors of the $ \rho $ meson in QCD sum rules   By using the quark part of the energy-momentum tensor current, the
gravitational formfactors of the $ \rho $ meson are calculated within the
light-cone sum rules method. In the considered version, the energy-momentum
tensor current is not conserved and as a result, there appear nine formfactors,
six (three) of which correspond to the conservation (nonconservation) of the
energy-momentum tensor current. We also compare our results with the one
existing in the literature.

29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph