Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Production mechanisms of open-heavy flavor mesons   In this paper we discuss different mechanisms of open-heavy flavor meson
production. Using the color dipole framework, we analyze in detail the
contributions of the conventional two-pomeron fusion and the three-pomeron
fusion correction. In a parameter-free way we found that the three-pomeron
mechanism is significant for $D$-meson production in the small-$p_{T}$
kinematics, although it is less important at large $p_{T}$, as well as for
$B$-mesons. The inclusion of the three-pomeron mechanism significantly improves
the agreement of theoretical predictions with experimental data in the
small-$p_{T}$ kinematics. We also consider the non-prompt charmonia production,
and demonstrate that the theoretical results are in reasonable agreement with
experimental data. Finally, we compare the theoretical predictions for the
dependence on multiplicity of co-produced hadrons to experimental data recently
measured by the ALICE collaboration. We found that, contrary to naive
expectations, the contribution of the three-pomeron mechanism has only a mild
effect on the self-normalized observables in the range of multiplicities
studied at ALICE, and for this reason the two-pomeron fusion mechanism can
describe reasonably well the experimentally observed multiplicity dependence.

32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th