منابع مشابه
Two - Loop Polygon Wilson Loops in N = 4 SYM
We compute for the first time the two-loop corrections to arbitrary n-gon lightlike Wilson loops in N = 4 supersymmetric Yang-Mills theory, using efficient numerical methods. The calculation is motivated by the remarkable agreement between the finite part of planar six-point MHV amplitudes and hexagon Wilson loops which has been observed at two loops. At n = 6 we confirm that the ABDK/BDS ansat...
متن کاملCusped SYM Wilson loop at two loops and beyond
We calculate the anomalous dimension of the cusped Wilson loop in N = 4 supersymmetric Yang-Mills theory (SYM) to order λ2 (λ = g2 YMN). We show that the cancellation between the diagrams with the three-point vertex and the selfenergy insertion to the propagator which occurs for smooth Wilson loops is not complete for cusped loops, so that an anomaly term remains. This term contributes to the c...
متن کاملBPS Wilson loops in N = 4 SYM : Examples on hyperbolic submanifolds of space - time
In this paper we present a family of supersymmetric Wilson loops of N = 4 supersymmetric Yang-Mills theory in Minkowski space. Our examples focus on curves restricted to hyperbolic submanifolds, H3 and H2, of space-time. Generically they preserve two supercharges, but in special cases more, including a case which has not been discussed before, of the hyperbolic line, conformal to the straight l...
متن کاملOn collinear factorization of Wilson loops and MHV amplitudes in N = 4 SYM
We consider the (multi) Splitting function of Wilson loops and MHV gluon scattering S matrix elements in N = 4 SYM. At strong coupling, one can utilize the methods of Alday and Maldacena and at weak coupling (one loop) the correspondence to light like Wilson loops is used. In both cases, the (multi) Splitting function corresponds to flattened cusps in the light like polygon, allowing for a clea...
متن کاملWrapping at four loops in N = 4 SYM
We present the planar four-loop anomalous dimension of the composite operator tr(φ [Z,φ]Z) in the flavour SU(2) sector of the N = 4 SYM theory. At this loop order wrapping interactions are present: they give rise to contributions proportional to ζ(5) increasing the level of transcendentality of the anomalous dimension. In a sequel of this paper all the details of our calculation will be reporte...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2009
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2009/05/115