Eta' Mass and Chiral Symmetry Breaking at Large Nc and Nf

Abstract

We propose a method for implementing the large-Nc, large-Nf limit of QCD at the effective Lagrangian level. Depending on the value of the ratio Nf/Nc, different patterns of chiral symmetry breaking can arise, leading in particular to different behaviors of the eta-prime mass in the combined large-N limit.

arXiv commentrevtex 12 pages, one postscript figure

References in corpus (7)

• Paramagnetic effect of light quark loops on Chiral Symmetry Breaking
• Chiral Symmetry Breaking without Bilinear Condensates, Unbroken Axial Z_N Symmetry, and Exact QCD Inequalities
• Anomalous Effective Lagrangian and Theta Dependence in QCD at Finite N_c
• Can Theta/N Dependence for Gluodynamics be Compatible with 2 pi Periodicity in Theta ?
• Zweig rule violation in the scalar sector and values of low-energy constants
• Anomaly induced QCD potential and Quark Decoupling
• Note on the Mass Square of the Eta' Meson

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• $\pi K$ Scattering in Three Flavour ChPT
• Resumming QCD vacuum fluctuations in three-flavour Chiral Perturbation Theory
• Chiral order and fluctuations in multi-flavour QCD
• Chiral symmetry breaking with no bilinear condensate revisited
• Pi-eta scattering and the resummation of vacuum fluctuation in three-flavour ChPT
• Heavy-tailed chiral random matrix theory
• Chiral Lagrangians