Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strangeness Electromagnetic Production on Nucleons and Nuclei   Isobar models for the electromagnetic production of kaons are discussed with
emphasis on the K^+ photoproduction at very small kaon angles and K^0
photoproduction on deuteron. Distorted-wave impuls approximation calculations
of the cross sections for the electroproduction of hypernuclei are presented on
the case of the ^{12}B_\Lambda production.

9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
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The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph