Vanishing chiral couplings in the large-N_C resonance theory

Abstract

The construction of a resonance theory involving hadrons requires implementing the information from higher scales into the couplings of the effective Lagrangian. We consider the large-Nc chiral resonance theory incorporating scalars and pseudoscalars, and we find that, by imposing LO short-distance constraints on form factors of QCD currents constructed within this theory, the chiral low-energy constants satisfy resonance saturation at NLO in the 1/Nc expansion.

5 pages, 2 figures. Version published in Physical Review D. Some equations to facilitate the discussion have been added

References in corpus (1)

• Towards a consistent estimate of the chiral low-energy constants

Cited by in corpus (6)

• A Rational Approach to Resonance Saturation in large-Nc QCD
• Resonance saturation of the chiral couplings at NLO in 1/Nc
• Determining chiral couplings at NLO
• Revisiting the vector form factor at next-to-leading order in 1/N(C)
• Hadronic and radiative decays of the tau lepton
• Scalar and pseudoscalar correlators in Resonance Chiral Theory