Structure constants of $\beta$ deformed super Yang-Mills

Abstract

We study the structure constants of the $\mathcal{N}=1$ beta deformed theory perturbatively and at strong coupling. We show that the planar one loop corrections to the structure constants of single trace gauge invariant operators in the scalar sector is determined by the anomalous dimension Hamiltonian. This result implies that 3 point functions of the chiral primaries of the theory do not receive corrections at one loop. We then study the structure constants at strong coupling using the Lunin-Maldacena geometry. We explicitly construct the supergravity mode dual to the chiral primary with three equal U(1) R-charges in the Lunin-Maldacena geometry. We show that the 3 point function of this supergravity mode with semi-classical states representing two other similar chiral primary states but with large U(1) charges to be independent of the beta deformation and identical to that found in the $Ad{S}_5\times S^5$ geometry. This together with the one-loop result indicate that these structure constants are protected by a non-renormalization theorem. We also show that three point function of U(1) R-currents with classical massive strings is proportional to the R-charge carried by the string solution. This is in accordance with the prediction of the R-symmetry Ward identity.

1+43 pages, 12 figures, Added two references and a note clarifying the issue of the double trace term in the Lagrangian

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Cited by in corpus (2)

• The complete one-loop dilatation operator of planar real beta-deformed N=4 SYM theory
• Extremal chiral ring states in AdS/CFT are described by free fermions for a generalized oscillator algebra