Beyond cusp anomalous dimension from integrability in SYM$_4$

Details Beyond cusp anomalous dimension from integrability in SYM$_4$ Beyond cusp anomalous dimension from integrability in SYM$_4$

2010-11-17

arxiv.org/abs/1011.4005v2

AIP Conf.Proc.1350:233-236,2011

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, contribution to the proceedings of the workshop Diffraction 2010, Otranto, 10th-15th September, talk given by M.Rossi

Scientific paper

10.1063/1.3601414

We study the first sub-leading correction $O((\ln s)^0)$ to the cusp
anomalous dimension in the high spin expansion of finite twist operators in
${\cal N}=4$ SYM theory. This term is still governed by a linear integral
equation which we study in the weak and strong coupling regimes. In the strong
coupling regime we find agreement with the string theory computations

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