Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Jet Production in proton-proton collisions at sqrt(s) =7 TeV with the
  ATLAS experiment   We report on the first measurements done with the ATLAS experiment of the
characteristics of energetic jets produced in proton-proton collisions at the
center of mass energy of 7 TeV. Jets are reconstructed using the anti-kt
clustering algorithm with distance parameter R=0.6. The kinematic region
investigated in this paper corresponds to jets with transverse momentum
p_T>30$GeV and rapidity |y_jet |<2.8. A critical understanding of the jet
production is obtained by comparing the data to predictions based on
leading-order QCD matrix elements plus parton shower Monte Carlo simulated
events. The results shown are obtained on a data sample corresponding to about
1 nb**-1 of integrated luminosity delivered by the Large Hadron Collider.

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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
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The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: solv-int
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The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: q-fin
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The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: cond-mat
2
The categories of this paper are: math