Structure constants of planar N =4 Yang Mills at one loop

Details Structure constants of planar N =4 Yang Mills at one loop Structure constants of planar N =4 Yang Mills at one loop

2005-02-21

arxiv.org/abs/hep-th/0502186v2

JHEP 0509:070,2005

Physics

High Energy Physics

High Energy Physics - Theory

52 pages, 12 figures, Typos fixed, reference added

Scientific paper

10.1088/1126-6708/2005/09/070

We study structure constants of gauge invariant operators in planar N=4 Yang-Mills at one loop with the motivation of determining features of the string dual of weak coupling Yang-Mills. We derive a simple renormalization group invariant formula characterizing the corrections to structure constants of any primary operator in the planar limit. Applying this to the scalar SO(6) sector we find that the one loop corrections to structure constants of gauge invariant operators is determined by the one loop anomalous dimension Hamiltonian in this sector. We then evaluate the one loop corrections to structure constants for scalars with arbitrary number of derivatives in a given holomorphic direction. We find that the corrections can be characterized by suitable derivatives on the four point tree function of a massless scalar with quartic coupling. We show that individual diagrams violating conformal invariance can be combined together to restore it using a linear inhomogeneous partial differential equation satisfied by this function.

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