Exact results in non-supersymmetric large /N orientifold field theories
Abstract
We consider non-supersymmetric large N orientifold field theories. Specifically, we discuss a gauge theory with a Dirac fermion in the antisymmetric tensor representation. We argue that, at large N and in a large part of its bosonic sector, this theory is nonperturbatively equivalent to N=1 SYM, so that exact results established in the latter (parent) theory also hold in the daughter orientifold theory. In particular, the non-supersymmetric theory has an exactly calculable bifermion condensate, exactly degenerate parity doublets, and a vanishing cosmological constant (all this to leading order in 1/ N).
- Publication:
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Nuclear Physics B
- Pub Date:
- September 2003
- DOI:
- 10.1016/S0550-3213(03)00538-8
- arXiv:
- arXiv:hep-th/0302163
- Bibcode:
- 2003NuPhB.667..170A
- Keywords:
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- High Energy Physics - Theory;
- High Energy Physics - Phenomenology
- E-Print:
- 18 pages, Latex. 3 figures. v2,v3: minor changes, refs. added, to appear in Nucl.Phys.B