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New Results from Glueball Superpotentials and Matrix Models: the Leigh-Strassler Deformation | | Timothy J. Hollowood
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5 Dec 2002 | | Journal: | JHEP 0304 (2003) 025 | | Subject: | hep-th | | Abstract: | Using the result of a matrix model computation of the exact glueball superpotential, we investigate the relevant mass perturbations of the Leigh-Strassler marginal ``q’’ deformation of N=4 supersymmetric gauge theory. We recall a conjecture for the elliptic superpotential that describes the theory compactified on a circle and identify this superpotential as one of the Hamiltonians of the elliptic Ruijsenaars-Schneider integrable system. In the limit that the Leigh-Strassler deformation is turned off, the integrable system reduces to the elliptic Calogero-Moser system which describes the N=1^* theory. Based on these results, we identify the Coulomb branch of the partially mass-deformed Leigh-Strassler theory as the spectral curve of the Ruijsenaars-Schneider system. We also show how the Leigh-Strassler deformation may be obtained by suitably modifying Witten’s M theory brane construction of N=2 theories. | | Source: | arXiv, hep-th/0212065 | | Services: | Forum | Review | PDF | Favorites | |
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