Chiral Effective Lagrangian and Quark Masses
Abstract
The status of lattice determinations of quark masses is reviewed (with the exception of mb). Attempts to extract the low-energy constants in the effective chiral Lagrangian are discussed, with special emphasis on those couplings which are required to test the hypothesis of a massless up-quark. Furthermore, the issue of quenched chiral logarithms is addressed.
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