A note on the perturbative properties of BPS operators

Details A note on the perturbative properties of BPS operators A note on the perturbative properties of BPS operators

2002-09-12

arxiv.org/abs/hep-th/0209103v1

Class.Quant.Grav. 20 (2003) L123-L132

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

We discuss the perturbative behavior of the 1/2 BPS operators in N=2 SCFT on the example of two very similar quadrilinear composite operators made out of hypermultiplets. An explicit one-loop computation shows that one of them is protected while the other acquires an anomalous dimension. Although both operators are superconformal primaries in the free case, the quantum corrections make the latter become a 1/2 BPS descendant of the Konishi multiplet, while the former remains primary. The comparative study of these two operators at higher orders may be helpful in understanding the quantum properties of the Konishi multiplet.

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