Exact Results in Non-Supersymmetric Large N Orientifold Field Theories

Details Exact Results in Non-Supersymmetric Large N Orientifold Field Theories Exact Results in Non-Supersymmetric Large N Orientifold Field Theories

2003-02-20

arxiv.org/abs/hep-th/0302163v3

Nucl.Phys.B667:170-182,2003

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, Latex. 3 figures. v2,v3: minor changes, refs. added, to appear in Nucl.Phys.B

Scientific paper

10.1016/S0550-3213(03)00538-8

We consider non-supersymmetric large N orientifold field theories. Specifically, we discuss a gauge theory with a Dirac fermion in the anti-symmetric tensor representation. We argue that, at large N and in a large part of its bosonic sector, this theory is non-perturbatively 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).

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