Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An automatized algorithm to compute infrared divergent multi-loop
  integrals   We describe a constructive procedure to separate overlapping infrared
divergences in multi-loop integrals. Working with a parametric representation
in D=4-2*epsilon dimensions, adequate subtractions lead to a Laurent series in
epsilon, where the coefficients of the pole- and finite terms are sums of
regular parameter integrals which can be evaluated numerically. We fully
automatized this algorithm by implementing it into algebraic manipulation
programs and applied it to calculate numerically some nontrivial 2-loop 4-point
and 3-loop 3-point Feynman diagrams. Finally, we discuss the applicability of
our method to phenomenologically relevant multi--loop calculations such as the
NNLO QCD corrections for e^+e^- --> 3 jets.

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The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
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The categories of this paper are: q-bio
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The categories of this paper are: funct-an
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The categories of this paper are: ao-sci
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin