Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: D meson enhancement in pp collisions at the LHC due to nonlinear gluon
  evolution   When nonlinear effects on the gluon evolution are included with constraints
from HERA, the gluon distribution in the free proton is enhanced at low
momentum fractions, x < 0.01, and low scales, Q^2 < 10 GeV^2, relative to
standard, DGLAP-evolved, gluon distributions. Consequently, such gluon
distributions can enhance charm production in pp collisions at center of mass
energy 14 TeV by up to a factor of five at midrapidity, y \sim 0, and
transverse momentum p_T -> 0 in the most optimistic case. We show that most of
this enhancement survives hadronization into D mesons. Assuming the same
enhancement at leading and next-to-leading order, we show that the D
enhancement may be measured by D^0 reconstruction in the K^-\pi^+ decay channel
with the ALICE detector.

20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
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The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
10
The categories of this paper are: q-bio