Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-Loop master integrals for heavy-to-light form factors of two
  different massive fermions   We calculate the full set of the two-loop master integrals for heavy-to-light
form factors of two different massive fermions for arbitrary momentum transfer
in NNLO QCD or QED corrections. These integrals allow to determine the two-loop
QCD or QED corrections to the amplitudes for heavy-to-light form factors of two
massive fermions in a full analytical way, without any approximations. The
analytical results of the master integrals are derived using the method of
differential equations, along with a proper choosing of canonical basis for the
master integrals. All the results of master integrals are expressed in terms of
Goncharov polylogarithms.

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The categories of this paper are: supr-con
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-lat
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The categories of this paper are: math-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: physics
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The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
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The categories of this paper are: math