Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Charmed sea contribution to the inclusive hadroproduction of the mesons
  with open charm in the Quark -- Gluon String Model   The hadroproduction of charmed mesons is discussed within the framework of
the modified Quark-Gluon String model (QGSM) taking into account the decays of
corresponding $S$--wave resonances like $D^*$. It is shown that the estimate of
the $c\bar{c}$--pair contribution to the quark sea of colliding hadrons
strongly depends on the parametrization of the function of the leading light
quark fragmentation into charmed mesons. A description of the existing
experimental data on inclusive spectra and asymmetries of leading and
nonleading $D$ - and $D^*$ - meson production in $ \pi p$ -, $p p$ - and
$\Sigma p$ - collisions is obtained. The predictions for leading/nonleading
asymmetry in $\Sigma^- p$-- and $\Xi^-p$-- collisions are also given.

25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc