Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Massive non-planar two-loop four-point integrals with SecDec 2.1   We present numerical results for massive non-planar two-loop box integrals
entering heavy quark pair production at NNLO, some of which are not known
analytically yet. The results have been obtained with the program SecDec 2.1,
based on sector decomposition and contour deformation, in combination with new
types of transformations. Among the new features of version 2.1 is also the
possibility to evaluate contracted tensor integrals, with no limitation on the
rank.

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The categories of this paper are: hep-lat
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The categories of this paper are: chem-ph
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The categories of this paper are: funct-an
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The categories of this paper are: cond-mat
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The categories of this paper are: stat
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The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ex
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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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: astro-ph