Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Enhanced Ultraviolet Cancellations in N = 5 Supergravity at Four Loop   We show that the four-loop four-point amplitudes of N = 5 supergravity are
ultraviolet finite in four dimensions, contrary to expectations based on
supersymmetry and duality-symmetry arguments. We explain why the diagrams of
any covariant local formalism cannot manifestly exhibit the necessary
cancellations for finiteness but instead require a new type of nontrivial
ultraviolet cancellation that we call "enhanced cancellations". We also show
that the three-loop four-point amplitudes in N = 4 and N = 5 supergravity
theories display enhanced cancellations. To construct the loop integrand, we
use the duality between color and kinematics. We apply standard methods for
extracting ultraviolet divergences in conjunction with the FIRE5 integral
reduction program to arrive at the four-loop results.

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The categories of this paper are: astro-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg
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The categories of this paper are: math
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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: physics
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con
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The categories of this paper are: nlin