Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical gluon mass and $pp$ elastic scattering   The application of a modified gluon propagator and an infrared frozen running
co upling constant in the description of the proton-proton elastic scattering
is in vestigated. The model based on the exchange of the Pomeron as a pair of
non-pert urbative gluons is modified to include the frozen coupling constant in
the infra red kinematic region. A good fit to the data of the differential
cross section f or different center of mass energies (53 GeV and 1.8 TeV) is
obtained.

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The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga