Orientifold daughter of N=4 SYM and double-trace running

Understand

We study the orientifold daughter of N=4 super Yang-Mills as a candidate non-supersymmetric large N conformal field theory.

• In a theory with vanishing single-trace beta functions that contains scalars in the adjoint representation, conformal invariance might still be broken by renormalization of double-trace terms to leading order at large N.
• In this note we perform a diagrammatic analysis and argue that the orientifold daughter does not suffer from double-trace running.
• This implies an exact large N equivalence between this theory and a subsector of N=4 SYM.