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Yangian symmetry of light-like Wilson loops

Nov, 2010

16 pages

Published in:

JHEP 11 (2011) 049

e-Print:

1011.4264 [hep-th]

DOI:

10.1007/JHEP11(2011)049

Report number:

CERN-PH-TH-2010-275,
HU-EP-10-81

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Abstract: (arXiv)

We show that a certain class of light-like Wilson loops exhibits a Yangian symmetry at one loop, or equivalently, in an Abelian theory. The Wilson loops we discuss are equivalent to one-loop MHV amplitudes in N=4 super Yang-Mills theory in a certain kinematical regime. The fact that we find a Yangian symmetry constraining their functional form can be thought of as the effect of the original conformal symmetry associated to the scattering amplitudes in the N=4 theory.

Note:

15 pages, 5 figures

supersymmetry: 4
symmetry: conformal
field theory: abelian
gauge field theory: Yang-Mills: supersymmetry
Wilson loop
Yangian
scattering amplitude
kinematics
tadpole
twistor

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Figures(5)

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