Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Omega photoproduction   Photoproduction of omega-meson is analyzed within meson exchange model and
Regge model and compared to rho-meson photoproduction. An interplay between two
models and uncertainties in data reproduction are discussed.

21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat