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Exact results in a non‐supersymmetric gauge theory
Author(s) -
Armoni A.,
Shifman M.,
Veneziano G.
Publication year - 2004
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.200310129
Subject(s) - orientifold , physics , theoretical physics , gauge theory , mathematical physics , degenerate energy levels , supersymmetric gauge theory , particle physics , supersymmetry , quantum mechanics
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 = 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 ).