Conformal Phase Transition and Fate of the Hidden Local Symmetry in Large N_f QCD

Abstract

In this talk I reported the work done in collaboration with Prof. Yamawaki. In the work we pointed that the Hidden Local Symmetry (HLS) for the vector mesons in QCD with smaller N_f plays the role of the "Higgsed magnetic gauge symmetry" for the Seiberg duality in SUSY QCD. For large N_f where the conformal phase transition with chiral restoration and deconfmement is expected to take place, we showed that the chiral symmetry restoration actually takes place by the dynamics of the HLS itself.