Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Planar Amplitudes in Maximally Supersymmetric Yang-Mills Theory   The collinear factorization properties of two-loop scattering amplitudes in
dimensionally-regulated N=4 super-Yang-Mills theory suggest that, in the planar
('t Hooft) limit, higher-loop contributions can be expressed entirely in terms
of one-loop amplitudes. We demonstrate this relation explicitly for the
two-loop four-point amplitude and, based on the collinear limits, conjecture an
analogous relation for n-point amplitudes. The simplicity of the relation is
consistent with intuition based on the AdS/CFT correspondence that the form of
the large N_c L-loop amplitudes should be simple enough to allow a resummation
to all orders.

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The categories of this paper are: math
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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat
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The categories of this paper are: cs
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The categories of this paper are: q-fin
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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: funct-an
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The categories of this paper are: nlin
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph