New Estimate of Quark Mass Parameters*
نویسنده
چکیده
An estimate of quark mass parameters suitable for the study of chiral symmetry breaking effects is made using exact GoldbergerTreiman relations for the Goldstone bosons which appear in the WeinbergSalam theory when the gauge coupling is set to zero. The numbers obtained are m U = 13.75 5.9 MeV, md = 24.7t12.9 MeV, and ms = 4972 299 MeV. Consistency of the various Goldberger-Treiman relations with current algebra mass ratios is discussed. The relationship (or otherwise) of these parameters to those obtained in previous evaluations is discussed. Submitted to Physical Review D ;k Work supported by the Department of Energy, contract DE-AC03-76SF00515.
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