The periodic Wilson loop duality is extended beyond one loop, yielding the two-loop n-particle MHV form factor integrand and new five- and six-particle symbols.
Quark scattering amplitudes at strong coupling
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abstract
Following Alday and Maldacena, we describe a string theory method to compute the strong coupling behavior of the scattering amplitudes of quarks and gluons in planar N=2 super Yang-Mills theory in the probe approximation. Explicit predictions for these quantities can be constructed using the all-orders planar gluon scattering amplitudes of N=4 super Yang-Mills due to Bern, Dixon and Smirnov.
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Two-loop MHV Form Factors from the Periodic Wilson Loop
The periodic Wilson loop duality is extended beyond one loop, yielding the two-loop n-particle MHV form factor integrand and new five- and six-particle symbols.