Chiral primaries in the Leigh-Strassler deformed N=4 SYM -- a perturbative study
Abstract
We look for chiral primaries in the general Leigh-Strassler deformed N=4 super Yang-Mills theory by systematically computing the planar one-loop anomalous dimension for single trace operators up to dimension six. The operators are organised into representations of the trihedral group, (27), which is a symmetry of the Lagrangian. We find an interesting relationship between the U(1)R-charge of chiral primaries and the representation of (27) to which the operator belongs. Up to scaling dimension 0=6 (and conjecturally to all dimensions) the following holds: The planar one-loop anomalous dimension vanishes only for operators that are in the singlet or three dimensional representations of (27). For other operators, the vanishing of the one-loop anomalous dimension occurs only in a sub-locus in the space of couplings.
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