Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Production cross sections of gamma-rays, electrons, and positrons in p-p
  collisions   Because the production cross sections of gamma-rays, electrons, and positrons
made in p-p collisions, $\sigma_{pp\rightarrow \gamma}$ and
$\sigma_{pp\rightarrow {e}^\pm}$, respectively, are kinematically equivalent
with respect to the parent pion-production cross section $\sigma_{pp\rightarrow
\pi}$, we obtain $\sigma_{pp\rightarrow {e}^\pm}$ directly from the machine
data on $\sigma_{pp\rightarrow \gamma}$. In Sato et al. (2012), we give
explicitly $\sigma_{pp\rightarrow \gamma}$, reproducing quite well the
accelerator data with LHC, namely $\sigma_{pp\rightarrow {e}^\pm}$ is
applicable enough over the wide energy range from GeV to 20\,PeV for projectile
proton energy. We dicuss in detail the relation between the cross sections, and
present explicitly $\sigma_{pp\rightarrow {e}^\pm}$ that are valid into the PeV
electron energy.

18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph