Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of K0S, Lambda, Antilambda production at HERA   The production of the neutral strange hadrons $K^{0}_{S}$, $\Lambda$ and
$\bar{\Lambda}$ has been measured in $ep$ collisions at HERA using the ZEUS
detector. Cross sections, baryon-to-meson ratios, relative yields of strange
and charged light hadrons, $\Lambda$ ($\bar{\Lambda}$) asymmetry and
polarization have been measured in three kinematic regions: $Q^2 > 25 \gev^2$;
$5 < Q^2 < 25 \gev^2$; and in photoproduction ($Q^2 \simeq 0$). In
photoproduction the presence of two hadronic jets, each with at least $5 \gev$
transverse energy, was required. The measurements agree in general with Monte
Carlo models and are consistent with measurements made at $e^+ e^-$ colliders,
except for an enhancement of baryon relative to meson production in
photoproduction.

20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th