title: Eta(') mass and chiral symmetry breaking at large N(c) and N(f).
abstract: We propose a method for implementing the large- N(c), large-N(f) limit of QCD at the effective Lagrangian level. Depending on the value of the ratio N(f)/N(c), different patterns of chiral symmetry breaking can arise, leading in particular to different behaviors of the eta(') mass in the combined large-N limit.
authors: Dipartimento di Fisica Galileo Galilei, Università di Padova and INFN, via Marzolo 8, I-35131 Padova, Italy. girlanda@pd.infn.it
authors: L
authors: L
authors: Girlanda
authors: J
authors: J
authors: Stern
authors: P
authors: P
authors: Talavera