Vector Manifestation in Hot Matter and Violation of Vector Dominance

Details Vector Manifestation in Hot Matter and Violation of Vector Dominance Vector Manifestation in Hot Matter and Violation of Vector Dominance

2003-06-27

arxiv.org/abs/hep-ph/0306277v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, Talk given by M. Harada at MRST 2003 ``Joefest'', May 13-15, 2003, Syracuse, New York, USA

Scientific paper

10.1063/1.1632181

We summarize main mechanisms to realize the vector manifestation (VM), in which the massless vector meson becomes the chiral partner of pion, at the critical temperature in hot QCD within the framework of the model based on the hidden local symmetry. Then, we show a recent analysis on the direct photon-pi-pi coupling which measures the validity of the vector dominance (VD) of the electromagnetic form factor of the pion: The VM predicts that the VD is largely violated at the critical temperature.

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