Exact results in nonsupersymmetric large /N orientifold field theories
Abstract
We consider nonsupersymmetric 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 nonsupersymmetric 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:

Nuclear Physics B
 Pub Date:
 September 2003
 DOI:
 10.1016/S05503213(03)005388
 arXiv:
 arXiv:hepth/0302163
 Bibcode:
 2003NuPhB.667..170A
 Keywords:

 High Energy Physics  Theory;
 High Energy Physics  Phenomenology
 EPrint:
 18 pages, Latex. 3 figures. v2,v3: minor changes, refs. added, to appear in Nucl.Phys.B