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Some analytic results for two-loop scattering amplitudes

Luis F. Alday
(
- Princeton, Inst. Advanced Study
)

Sep, 2010

18 pages

Published in:

JHEP 07 (2011) 080

e-Print:

1009.1110 [hep-th]

DOI:

10.1007/JHEP07(2011)080

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Abstract: (arXiv)

We present analytic results for the finite diagrams contributing to the two-loop eight-point MHV scattering amplitude of planar N=4 SYM. We use a recently proposed representation for the integrand of the amplitude in terms of (momentum) twistors and focus on a restricted kinematics in which the answer depends only on two independent cross-ratios. The theory of motives can be used to vastly simplify the results, which can be expressed as simple combinations of classical polylogarithms.

Supersymmetric gauge theory
AdS-CFT Correspondence
supersymmetry: 4
scattering amplitude: analytic properties
gauge field theory: Yang-Mills: supersymmetry
kinematics
twistor
n-point function
loop integral: 5
Wilson loop

References(28)

Figures(6)

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(
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)
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