Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photoproduction models for total cross section and shower development   A model for the total photoproduction cross section based on the ansatz that
resummation of infrared gluons limits the rise induced by QCD minijets in all
the total cross-sections, is used to simulate extended air showers initiated by
cosmic rays with the AIRES simulation program. The impact on common shower
observables, especially those related with muon production, is analysed and
compared with the corresponding results obtained with previous photoproduction
models.

7
The categories of this paper are: hep-th
2
The categories of this paper are: math
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys