Vector Manifestation in Hot Matter
Masayasu Harada, Chihiro Sasaki
Abstract
Based on the hidden local symmetry (HLS) Lagrangian as an effective field theory of QCD, we find that the chiral symmetry restoration for hot QCD can be realized through the Vector Manifestation where the rho meson becomes massless degenerate with pi as the chiral partner. This is done by including, in addition to the hadronic thermal effects due to the pi- and rho-loops, the intrinsic temperature dependences of the parameters of the HLS Lagrangian through the matching of the HLS with the underlying QCD.
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