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.
eta ' mass and chiral symmetry breaking at large N-c and N-f
GIRLANDA, Luca;
2001-01-01
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.File in questo prodotto:
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