Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Heavy Flavor Contributions to DIS Structure Functions at $O(\alpha_s^3)$   We calculate moments of the $O(\alpha_s^3)$ heavy flavor contributions to the
  Wilson coefficients of the structure function $F_2(x,Q^2)$ in the region
  $Q^2\gg m^2$. The massive Wilson coefficients are obtained as convolutions of
massive operator matrix elements (OMEs) and the known light flavor Wilson
coefficients. The calculation of moments of the massive OMEs involves a first
independent recalculation of moments of the fermionic contributions to all
3--loop anomalous dimensions of the unpolarized twist--2 local composite
operators stemming from the light--cone expansion. The expressions for the
massive OMEs are now known for general values of the Mellin variable $N$ apart
of one coefficient in the constant term, for which only a series of moments is
computed.

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The categories of this paper are: mtrl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: adap-org
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The categories of this paper are: bayes-an
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The categories of this paper are: physics
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-th
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The categories of this paper are: comp-gas
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The categories of this paper are: eess
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The categories of this paper are: ao-sci
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The categories of this paper are: stat
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The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ex