Exact Scale Invariance of Composite-Field Coupling Constants
classification
✦ hep-th
keywords
couplingscalearguecompositecomposite-fieldcompositenessconditionconstant
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We show that the coupling constant of a quantum-induced composite field is scale invariant due to its compositeness condition. It is first demonstrated in next-to-leading order in 1/N in typical models, and then we argue that it holds exactly.
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