Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solving multi-loop Feynman diagrams using light-front coordinates   We determine the numerical values of scalar multi-loop two-vertex Feynman
diagrams, the generalized sunset diagrams, by integrating all but the
longitudinal momenta analytically. For the longitudinal momenta we introduce
one collective coordinate, which allows us to determine the numerical value of
the diagram efficiently and to an arbitrary accuracy. The imaginary part and
the threshold behavior of the diagram are also handled within this framework.

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The categories of this paper are: astro-ph
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The categories of this paper are: cs
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The categories of this paper are: q-bio
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The categories of this paper are: stat
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: hep-th
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The categories of this paper are: hep-ex
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
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The categories of this paper are: bayes-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: eess