Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Particle Production in the Field Theories with Symmetry   The field theory with high space-time symmetry is considered with the aim to
examine the mass-shell particles production processes. The general conclusion
is following: no real particle production exists if the space-time symmetry
constraints are taken into account. This result does not depend on the concrete
structure of Lagrangian.

9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs