Wilson loop remainder function for null polygons in the limit of self-crossing
Apr, 201113 pages
Published in:
- JHEP 05 (2011) 114
e-Print:
- 1104.2469 [hep-th]
Report number:
- HU-EP-11-18
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Abstract: (arXiv)
The remainder function of Wilson loops for null polygons becomes divergent if two vertices approach each other. We apply RG techniques to the limiting configuration of a contour with self-intersection. As a result for the two loop remainder we find a quadratic divergence in the logarithm of the distance between the two approaching vertices. The divergence is multiplied by a factor, which is given by a pure number plus the product of two logarithms of cross-ratios characterising the conformal geometry of the self-crossing.- Duality in Gauge Field Theories
- Renormalization Group
- AdS-CFT Correspondence
- geometry: conformal
- Wilson loop
- renormalization group
- regularization: dimensional
- regularization: point splitting
- gauge field theory: Yang-Mills: supersymmetry
- crossing
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