Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: K^+ production in p-C-collisions at a beam energy 1.2 GeV   The isobar model and the resonance model are applied for the first analysis
of the subthreshold $K^+$-meson production in proton-carbon collisions, which
was perfomed at GSI at an emission angle of 40 degrees and a bombarding energy
of 1.2 GeV. In this study, we focus on the role of the secondary processes $\pi
N \to K^+ Y$ in normal nuclear matter density. It turns out that the present
approach can reproduce very well both the $\pi^+$- and $K^+$- meson spectra. It
is also demonstrated that the different kinds of descriptions for the $\pi N
\to K^+ \Lambda$ reactions substantially differentiate the calculated results
for the $p A \to K^+ X$ differential cross sections.

10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin