Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The real radiation antenna function for $S \to Q {\bar Q} q {\bar q}$ at
  NNLO QCD   As a first step towards the application of the antenna subtraction formalism
to NNLO QCD reactions with massive quarks, we determine the real radiation
antenna function and its integrated counterpart for reactions of the type $S
\to Q{\bar Q} q {\bar q}$, where $S$ denotes an uncolored initial state and
$Q$, $q$ a massive and massless quark, respectively. We compute the
corresponding integrated antenna function in terms of harmonic polylogarithms.
As an application and check of our results we calculate the contribution
proportional to $\alpha_s^2 e^2_Q N_f$ to the inclusive heavy-quark pair
production cross ection in $e^+e^-$ annihilation.

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The categories of this paper are: quant-ph
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The categories of this paper are: nlin
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
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The categories of this paper are: eess
25
The categories of this paper are: patt-sol
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The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas