Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutral meson production and correlation with charged hadrons in pp and
  Pb-Pb collisions with the ALICE experiment at the LHC   Among the probes used to investigate the properties of the Quark-Gluon
Plasma, the measurement of the energy loss of high-energy partons can be used
to put constraints on energy-loss models and to ultimately access medium
characteristics, such as the energy density or the temperature. The study of
two-particle correlations allows us to obtain very different constraints
compared to the nuclear modification factor. In particular, the correlation of
charged hadrons with high energy $\pi^{0}$ or direct photons is believed to
give a measurement of the parton energy loss and insights into the
medium-induced modification of the fragmentation process. High energy neutral
pions are reconstructed using the ALICE electromagnetic calorimeters EMCal and
PHOS, and the charged particles are detected by the main tracking detectors ITS
and TPC. In these proceedings, the measurement of neutral mesons at $\sqrt{s} =
$2.76 TeV in pp collisions are presented, as well as the measurements of
azimuthal $\pi^{0}$-hadron correlations in pp and Pb-Pb collisions at
$\sqrt{s_{\rm{NN}}} = 2.76$~TeV, and the extracted per-trigger yield
modification factor ($I_{AA}$). Comparisons with theoretical model calculations
are also added.

28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
2
The categories of this paper are: math