Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-03-02
JHEP 0705:038,2007
Physics
High Energy Physics
High Energy Physics - Theory
41 pages, 6 figures; (v2) references added, minor typos removed; (v3) more references added, incorrect statement and typos rem
Scientific paper
10.1088/1126-6708/2007/05/038
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, \Delta(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 \Delta(27) to which the operator belongs. Up to scaling dimension \Delta_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 \Delta(27). For other operators, the vanishing of the one-loop anomalous dimension occurs only in a sub-locus in the space of couplings.
Govindarajan Suresh
Madhu Kallingalthodi
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