New N=2 superconformal field theories from M / F theory orbifolds
Aug, 199834 pages
Published in:
- Nucl.Phys.B 545 (1999) 283-308
e-Print:
- hep-th/9808175 [hep-th]
Report number:
- IASSNS-HEP-98-77,
- ITEP-TH-40-98
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Abstract:
We consider M-theory on (T^2\times R^2)/Z_n with M5 branes wrapped on R^2. One can probe this background with M5 branes wrapped on T^2. The theories on the probes provide many new examples of N=2 field theories without Lagrangian description. All these theories have Coulomb branches, and we find the corresponding Seiberg-Witten curves. The exact solution is encoded in a Hitchin system on an orbifolded torus with punctures. The theories we consider also arise from D3 probes in F-theory on K3\times K3 orbifolds. Interestingly, the relevant F-theory background has frozen Z_n singularities which are analogous to frozen Z_2 singularities in Type I string theory. We use the F-theory description to find supergravity duals of the probe SCFT's in the large N limit and compute the spectrum of relevant and marginal operators. We also explain how the decoupling of U(1) factors is manifested in the supergravity description.Note:
- 35 pages, latex Report-no: IASSNS-HEP-98/77, ITEP-TH-40-98
- 11.15.-q
- 11.30.Pb
- Gauge theory
- M-theory
- F-theory
- field theory: conformal
- supersymmetry
- M-theory
- orbifold
- F-theory
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