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arXiv · hep-ph/0105335

Fate of Vector Dominance in the Effective Field Theory

Masayasu Harada·Koichi Yamawaki
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Abstract

We reveal the full phase structure of the effective field theory for QCD, based on the hidden local symmetry (HLS) through the one-loop renormalization group equation including quadratic divergences. We then show that vector dominance (VD) is not a sacred discipline of the effective field theory but rather an accidental phenomenon peculiar to three-flavored QCD. In particular, the chiral symmetry restoration in HLS model takes place in a wide phase boundary surface, on which the VD is realized nowhere. This suggests that VD may not be valid for chiral symmetry restoration in hot and/or dense QCD.

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Masayasu Harada, Koichi Yamawaki. 2001-08-18. Fate of Vector Dominance in the Effective Field Theory. https://doi.org/10.1103/physrevlett.87.152001

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