Vanishing chiral couplings in the large-N_C resonance theory

Details Vanishing chiral couplings in the large-N_C resonance theory Vanishing chiral couplings in the large-N_C resonance theory

2006-11-29

arxiv.org/abs/hep-ph/0611375v2

Phys.Rev.D75:114011,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.75.114011

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.

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