Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inclusive D* Meson Cross Sections and D* Jet Correlations in
  Photoproduction at HERA   Differential photoproduction cross sections are measured for events
containing D* mesons. The data were taken with the H1 detector at the ep
collider HERA and correspond to an integrated luminosity of 51.1 pb-1. The
kinematic region covers small photon virtualities Q^2 < 0.01 GeV^2 and
photon-proton centre-of-mass energies of 171 < W_gammap < 256 GeV. The details
of the heavy quark production process are further investigated in events with
one or two jets in addition to the D* meson. Differential cross sections for D*
jet production are determined and the correlations between the D* meson and the
jet(s) are studied. The results are compared with perturbative QCD predictions
applying collinear- or kt -factorisation.

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The categories of this paper are: physics
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: astro-ph
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The categories of this paper are: math-ph
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The categories of this paper are: funct-an
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The categories of this paper are: bayes-an
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The categories of this paper are: econ
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The categories of this paper are: nlin
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The categories of this paper are: nucl-th
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The categories of this paper are: math
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat