Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-loop Splitting Amplitudes   Splitting amplitudes govern the behavior of scattering amplitudes at the
momenta of external legs become collinear. In this talk we outline the
calculation of two-loop splitting amplitudes via the unitarity sewing method.
This method retains the simple factorization properties of light-cone gauge,
but avoids the need for prescriptions such as the principal value or
Mandelstam-Leibbrandt ones. The encountered loop momentum integrals are then
evaluated using integration-by-parts and Lorentz invariance identities. We
outline a variety of applications for these splitting amplitudes.

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The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
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The categories of this paper are: mtrl-th
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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: stat
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: math
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The categories of this paper are: hep-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg