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. 2001 Jan 29;86(5):757-60.
doi: 10.1103/PhysRevLett.86.757.

Vector Manifestation of Chiral Symmetry


Vector Manifestation of Chiral Symmetry

M Harada et al. Phys Rev Lett. .


We propose "vector manifestation" (VM) of the Wigner realization of chiral symmetry in which the symmetry is restored at the critical point by the massless degenerate pion (and its flavor partners) and the rho meson (and its flavor partners) as the chiral partner, in sharp contrast to the traditional manifestation á la the linear sigma model where the symmetry is restored by the degenerate pion and the scalar meson. The application to the chiral phase transition of large N(f) QCD is performed using the hidden local symmetry Lagrangian. Combined with the Wilsonian matching proposed recently, VM determines the critical number of massless flavors N(f) approximately equal to 5 without much ambiguity.

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