Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-04-30
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, no figure, talk given at Fifth Symposium on "Science of Hadrons under Extreme Conditions", March 18-20, 2003, JAERI,
Scientific paper
The vector manifestation (VM) is a new pattern for realizing the chiral symmetry in QCD. In the VM, the massless vector meson becomes the chiral partner of pion at the critical point, in contrast with the restoration based on the linear sigma model. Including the intrinsic temperature dependences of the parameters of the HLS Lagrangian determined from the underlying QCD through the Wilsonian matching together with the hadronic thermal corrections, we present a new prediction of the VM on the direct photon-$\pi$-$\pi$ coupling which measures the validity of the vector dominance (VD) of the electromagnetic form factor of the pion. We find that the VD is largely violated at the critical temperature, which indicates that the assumption of the VD made in several analysis on the dilepton spectra in hot matter may need to be weakened for consistently including the effect of the dropping mass of the vector meson.
No associations
LandOfFree
Violation of Vector Dominance in the Vector Manifestation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Violation of Vector Dominance in the Vector Manifestation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Violation of Vector Dominance in the Vector Manifestation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-31661