On anomalous conformal Ward identities for Wilson loops on polygon-like contours with circular edges

被引:4
作者
Dorn, Harald [1 ,2 ]
机构
[1] Humboldt Univ, Inst Phys, Zum Grossen Windkanal 6, D-12489 Berlin, Germany
[2] Humboldt Univ, IRIS Adlershof, Zum Grossen Windkanal 6, D-12489 Berlin, Germany
关键词
Anomalies in Field and String Theories; Conformal and W Symmetry; Renormalization Group; Wilson; 't Hooft and Polyakov loops; SHORT-DISTANCE PROPERTIES; PHASE-FACTORS; RENORMALIZATION; OPERATORS;
D O I
10.1007/JHEP03(2020)166
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We derive the anomalous conformal Ward identities for N = 4 SYM Wilson loops on polygon-like contours with edges formed by circular arcs. With a suitable choice of parameterisation they are very similarly to those for local correlation functions. Their solutions have a conformally covariant factor depending on the distances of the corners times a conformally invariant remainder factor depending, besides on cross ratios of the corners, on the cusp angles and angles parameterising the torsion of the contours.
引用
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页数:18
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