N=2 Supersymmetric RG Flows and the IIB Dilaton

Details N=2 Supersymmetric RG Flows and the IIB Dilaton N=2 Supersymmetric RG Flows and the IIB Dilaton

2000-04-10

arxiv.org/abs/hep-th/0004063v2

Nucl.Phys. B594 (2001) 209-228

Physics

High Energy Physics

High Energy Physics - Theory

25 pages, 1 figure, harvmac, references added

Scientific paper

10.1016/S0550-3213(00)00656-8

We show that there is a non-trivial relationship between the dilaton of IIB supergravity, and the coset of scalar fields in five-dimensional, gauged N=8 supergravity. This has important consequences for the running of the gauge coupling in massive perturbations of the AdS/CFT correspondence. We conjecture an exact analytic expression for the ten-dimensional dilaton in terms of five-dimensional quantities, and we test this conjecture. Specifically, we construct a family of solutions to IIB supergravity that preserve half of the supersymmetries, and are lifts of supersymmetric flows in five-dimensional, gauged N=8 supergravity. Via the AdS/CFT correspondence these flows correspond to softly broken N=4, large N Yang-Mills theory on part of the Coulomb branch of N=2 supersymmetric Yang-Mills. Our solutions involve non-trivial backgrounds for all the tensor gauge fields as well as for the dilaton and axion.

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