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Title of Journal: J High Energ Phys

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Abbravation: Journal of High Energy Physics

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Springer-Verlag

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10.1007/978-94-007-5634-2_165

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1029-8479

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Some analytic results for twoloop scattering ampl

Authors: Luis F Alday
Publish Date: 2011/07/19
Volume: 2011, Issue: 7, Pages: 80-
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Abstract

We present analytic results for the finite diagrams contributing to the twoloop eightpoint MHV scattering amplitude of planar mathcalN = 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 crossratios The theory of motives can be used to vastly simplify the results which can be expressed as simple combinations of classical polylogarithms

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