The massless supersymmetric ladder with L rungs

Details The massless supersymmetric ladder with L rungs The massless supersymmetric ladder with L rungs

2008-07-12

arxiv.org/abs/0807.1964v1

Nucl.Phys.B807:534-546,2009

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX, 17 pages, 8 figures

Scientific paper

10.1016/j.nuclphysb.2008.07.030

We show that in the massless N=1 supersymmetric Wess-Zumino theory it is possible to devise a computational strategy by which the x-space calculation of the ladder 4-point correlators can be carried out without introducing any regularization. As an application we derive a representation valid at all loop orders in terms of conformal invariant integrals. We obtain an explicit expression of the 3-loop ladder diagram for collinear external points.

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