Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Momentum expansion of massive two-loop Feynman graphs around a finite
  value   We give an algorithm for obtaining expansions of massive two-loop Feynman
graphs in powers of the external momentum around a finite, nonzero value of the
momentum. This is based on our general two-loop formalism to reduce massive
two-loop graphs with renormalizable interactions into a standard set of special
functions. After the algebraic reduction, the final results are obtained by
numerical integration. We apply the expansion algorithm to treat the
top-dependent corrections of O(g^2 alpha_s) to the b quark self-energy and
extract its momentum expansion on-shell.

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The categories of this paper are: hep-th
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: chem-ph
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The categories of this paper are: eess
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
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The categories of this paper are: q-bio
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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: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: q-fin