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Null Polygonal Wilson Loops in Full N=4 Superspace

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons20678

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

http://pubman.mpdl.mpg.de/cone/persons/resource/persons2717

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

http://pubman.mpdl.mpg.de/cone/persons/resource/persons23372

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

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Volltexte (frei zugänglich)

1203.1443v1.pdf
(Preprint), 854KB

JPA_45_26_265402.pdf
(beliebiger Volltext), 805KB

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Zitation

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.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-3B6D-E
Zusammenfassung
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.