Null Polygonal Wilson Loops in Full N=4 Superspace

Beisert, N.; He, S.; Schwab, B.; Vergu, C.

doi:10.1088/1751-8113/45/26/265402

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Null Polygonal Wilson Loops in Full N=4 Superspace

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Beisert, N.
Duality & Integrable Structures, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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He, S.
Canonical and Covariant Dynamics of Quantum Gravity, AEI Golm, MPI for Gravitational Physics, Max Planck Society;

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Schwab, B.
Duality & Integrable Structures, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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1203.1443v1.pdf
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Citation

Beisert, N., He, S., Schwab, B., & Vergu, C. (2012). Null Polygonal Wilson Loops in Full N=4 Superspace. Journal of Physics A: Mathematical and Theoretical, 45(26): 265402. doi:10.1088/1751-8113/45/26/265402.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-3B6D-E

Abstract

We compute the one-loop expectation value of light-like polygonal Wilson loops in N=4 super-Yang-Mills theory in full superspace. When projecting to chiral superspace we recover the known results for tree-level next-to-maximally-helicity-violating (NMHV) scattering amplitude. The one-loop MHV amplitude is also included in our result but there are additional terms which do not immediately correspond to scattering amplitudes. We finally discuss different regularizations and their Yangian anomalies.