Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Isolated photon-hadron correlations in proton-proton collisions at
  {\sqrt(s)} = 7 TeV with the ALICE experiment   At high pT, direct photons produced in Compton and annihilation QCD leading
order processes are associated to a jet in the opposite direction. Such
processes are tagged experimentally by identifying leading isolated photons and
their correlated associated hadrons in the opposite azimuthal direction. The
jet fragmentation can be estimated from the hadrons and the photon via the
imbalance parameter xE. We present the results extracted from gamma-hadron
correlations measured by the ALICE experiment in pp collisions at {\sqrt(s)} =
7 TeV. Direct photons are first identified using isolated criteria. Then, the
remaining contamination from neutral mesons decay photons is subtracted
statistically to extract the xE distributions of isolated photon-hadron and
isolated {\pi}^0-hadron correlations.

23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg