Matching gluon scattering amplitudes and Wilson loops in off-shell regularization
Jul, 20088 pages
Published in:
- Phys.Lett.B 668 (2008) 429-431
e-Print:
- 0807.2999 [hep-th]
Report number:
- HU-EP-08-25
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Abstract: (Elsevier)
We construct a regularization for light-like polygonal Wilson loops in N = 4 SYM, which matches them to the off-shell MHV gluon scattering amplitudes. Explicit calculations are performed for the 1-loop four gluon case. The off light cone extrapolation has to be based on the local supersymmetric Wilson loop. The observed matching concerns Feynman gauge. Furthermore, the leading infrared divergent term is shown to be gauge parameter independent on 1-loop level.- gluon: scattering amplitude
- regularization: off-shell
- supersymmetry: 4
- light cone
- infrared problem
- gauge field theory: Yang-Mills
- Wilson loop
- Feynman gauge
- analytic properties
- numerical calculations
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