Ratio of Quark Masses in Duality Theories
Abstract
We consider N=2 SU(2) Seiberg-Witten duality theory for models with Nf=2 and Nf=3 quark flavors. We investigate arbitrary large bare mass ratios between the two or three quarks at the singular points. For Nf=2 we explore large bare mass ratios corresponding to a singularity in the strong coupling region. For Nf=3 we determine the location of both strong and weak coupling singularities that produce specific large bare mass ratios.
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